diff options
| author | Oli Scherer <github333195615777966@oli-obk.de> | 2025-06-18 12:51:47 +0000 |
|---|---|---|
| committer | Oli Scherer <github333195615777966@oli-obk.de> | 2025-07-18 07:47:08 +0000 |
| commit | 652ba279ecc693d8b4310c40e645a62009f5b0ed (patch) | |
| tree | 0122222434b68da26eb352811c402fce5007d35d | |
| parent | 12eedafc38b1d3af02c9c15333d0ba2f1aee1253 (diff) | |
| download | rust-652ba279ecc693d8b4310c40e645a62009f5b0ed.tar.gz rust-652ba279ecc693d8b4310c40e645a62009f5b0ed.zip | |
Show the memory of uninit reads
52 files changed, 302 insertions, 163 deletions
diff --git a/compiler/rustc_const_eval/src/const_eval/error.rs b/compiler/rustc_const_eval/src/const_eval/error.rs index 3e880d02001..e00fb2c1eaf 100644 --- a/compiler/rustc_const_eval/src/const_eval/error.rs +++ b/compiler/rustc_const_eval/src/const_eval/error.rs @@ -2,17 +2,17 @@ use std::mem; use rustc_errors::{Diag, DiagArgName, DiagArgValue, DiagMessage, IntoDiagArg}; use rustc_middle::mir::AssertKind; -use rustc_middle::mir::interpret::{AllocId, Provenance, ReportedErrorInfo}; +use rustc_middle::mir::interpret::{AllocId, Provenance, ReportedErrorInfo, UndefinedBehaviorInfo}; use rustc_middle::query::TyCtxtAt; +use rustc_middle::ty::ConstInt; use rustc_middle::ty::layout::LayoutError; -use rustc_middle::ty::{ConstInt, TyCtxt}; use rustc_span::{Span, Symbol}; use super::CompileTimeMachine; use crate::errors::{self, FrameNote, ReportErrorExt}; use crate::interpret::{ - CtfeProvenance, ErrorHandled, Frame, InterpErrorInfo, InterpErrorKind, MachineStopType, - Pointer, err_inval, err_machine_stop, + CtfeProvenance, ErrorHandled, Frame, InterpCx, InterpErrorInfo, InterpErrorKind, + MachineStopType, Pointer, err_inval, err_machine_stop, }; /// The CTFE machine has some custom error kinds. @@ -163,7 +163,7 @@ pub fn get_span_and_frames<'tcx>( /// You can use it to add a stacktrace of current execution according to /// `get_span_and_frames` or just give context on where the const eval error happened. pub(super) fn report<'tcx, C, F>( - tcx: TyCtxt<'tcx>, + ecx: &InterpCx<'tcx, CompileTimeMachine<'tcx>>, error: InterpErrorKind<'tcx>, span: Span, get_span_and_frames: C, @@ -173,6 +173,7 @@ where C: FnOnce() -> (Span, Vec<FrameNote>), F: FnOnce(&mut Diag<'_>, Span, Vec<FrameNote>), { + let tcx = ecx.tcx.tcx; // Special handling for certain errors match error { // Don't emit a new diagnostic for these errors, they are already reported elsewhere or @@ -198,6 +199,20 @@ where InterpErrorKind::ResourceExhaustion(_) | InterpErrorKind::InvalidProgram(_) ); + if let InterpErrorKind::UndefinedBehavior(UndefinedBehaviorInfo::InvalidUninitBytes( + Some((alloc_id, _access)), + )) = error + { + let bytes = ecx.print_alloc_bytes_for_diagnostics(alloc_id); + let info = ecx.get_alloc_info(alloc_id); + let raw_bytes = errors::RawBytesNote { + size: info.size.bytes(), + align: info.align.bytes(), + bytes, + }; + err.subdiagnostic(raw_bytes); + } + error.add_args(&mut err); mk(&mut err, span, frames); diff --git a/compiler/rustc_const_eval/src/const_eval/eval_queries.rs b/compiler/rustc_const_eval/src/const_eval/eval_queries.rs index ce72d59b8b0..f584f6c948e 100644 --- a/compiler/rustc_const_eval/src/const_eval/eval_queries.rs +++ b/compiler/rustc_const_eval/src/const_eval/eval_queries.rs @@ -411,7 +411,7 @@ fn report_eval_error<'tcx>( let instance = with_no_trimmed_paths!(cid.instance.to_string()); super::report( - *ecx.tcx, + ecx, error, DUMMY_SP, || super::get_span_and_frames(ecx.tcx, ecx.stack()), @@ -451,7 +451,7 @@ fn report_validation_error<'tcx>( errors::RawBytesNote { size: info.size.bytes(), align: info.align.bytes(), bytes }; crate::const_eval::report( - *ecx.tcx, + ecx, error, DUMMY_SP, || crate::const_eval::get_span_and_frames(ecx.tcx, ecx.stack()), diff --git a/src/tools/miri/tests/fail-dep/concurrency/libc_pthread_cond_double_destroy.rs b/src/tools/miri/tests/fail-dep/concurrency/libc_pthread_cond_double_destroy.rs index 8624e4d28fb..5778765589d 100644 --- a/src/tools/miri/tests/fail-dep/concurrency/libc_pthread_cond_double_destroy.rs +++ b/src/tools/miri/tests/fail-dep/concurrency/libc_pthread_cond_double_destroy.rs @@ -1,4 +1,6 @@ //@ignore-target: windows # No pthreads on Windows +//@ normalize-stderr-test: "(\n)ALLOC \(.*\) \{\n(.*\n)*\}(\n)" -> "${1}ALLOC DUMP${3}" +//@ normalize-stderr-test: "\[0x[0-9a-z]..0x[0-9a-z]\]" -> "[0xX..0xY]" /// Test that destroying a pthread_cond twice fails, even without a check for number validity diff --git a/src/tools/miri/tests/fail-dep/concurrency/libc_pthread_cond_double_destroy.stderr b/src/tools/miri/tests/fail-dep/concurrency/libc_pthread_cond_double_destroy.stderr index 3318ac7fca5..6156070cf95 100644 --- a/src/tools/miri/tests/fail-dep/concurrency/libc_pthread_cond_double_destroy.stderr +++ b/src/tools/miri/tests/fail-dep/concurrency/libc_pthread_cond_double_destroy.stderr @@ -1,4 +1,4 @@ -error: Undefined Behavior: reading memory at ALLOC[0x0..0x4], but memory is uninitialized at [0x0..0x4], and this operation requires initialized memory +error: Undefined Behavior: reading memory at ALLOC[0xX..0xY], but memory is uninitialized at [0xX..0xY], and this operation requires initialized memory --> tests/fail-dep/concurrency/libc_pthread_cond_double_destroy.rs:LL:CC | LL | libc::pthread_cond_destroy(cond.as_mut_ptr()); @@ -9,12 +9,8 @@ LL | libc::pthread_cond_destroy(cond.as_mut_ptr()); = note: BACKTRACE: = note: inside `main` at tests/fail-dep/concurrency/libc_pthread_cond_double_destroy.rs:LL:CC -Uninitialized memory occurred at ALLOC[0x0..0x4], in this allocation: -ALLOC (stack variable, size: 48, align: 8) { - 0x00 │ __ __ __ __ __ __ __ __ __ __ __ __ __ __ __ __ │ ░░░░░░░░░░░░░░░░ - 0x10 │ __ __ __ __ __ __ __ __ __ __ __ __ __ __ __ __ │ ░░░░░░░░░░░░░░░░ - 0x20 │ __ __ __ __ __ __ __ __ __ __ __ __ __ __ __ __ │ ░░░░░░░░░░░░░░░░ -} +Uninitialized memory occurred at ALLOC[0xX..0xY], in this allocation: +ALLOC DUMP note: some details are omitted, run with `MIRIFLAGS=-Zmiri-backtrace=full` for a verbose backtrace diff --git a/src/tools/miri/tests/fail-dep/concurrency/libc_pthread_condattr_double_destroy.rs b/src/tools/miri/tests/fail-dep/concurrency/libc_pthread_condattr_double_destroy.rs index a510ee77cfb..91169660491 100644 --- a/src/tools/miri/tests/fail-dep/concurrency/libc_pthread_condattr_double_destroy.rs +++ b/src/tools/miri/tests/fail-dep/concurrency/libc_pthread_condattr_double_destroy.rs @@ -1,5 +1,7 @@ //@ignore-target: windows # No pthreads on Windows //@ignore-target: apple # Our macOS condattr don't have any fields so we do not notice this. +//@ normalize-stderr-test: "(\n)ALLOC \(.*\) \{\n(.*\n)*\}(\n)" -> "${1}ALLOC DUMP${3}" +//@ normalize-stderr-test: "\[0x[0-9a-z]..0x[0-9a-z]\]" -> "[0xX..0xY]" /// Test that destroying a pthread_condattr twice fails, even without a check for number validity diff --git a/src/tools/miri/tests/fail-dep/concurrency/libc_pthread_condattr_double_destroy.stderr b/src/tools/miri/tests/fail-dep/concurrency/libc_pthread_condattr_double_destroy.stderr index 1971bbc7210..da64970ff2e 100644 --- a/src/tools/miri/tests/fail-dep/concurrency/libc_pthread_condattr_double_destroy.stderr +++ b/src/tools/miri/tests/fail-dep/concurrency/libc_pthread_condattr_double_destroy.stderr @@ -1,4 +1,4 @@ -error: Undefined Behavior: reading memory at ALLOC[0x0..0x4], but memory is uninitialized at [0x0..0x4], and this operation requires initialized memory +error: Undefined Behavior: reading memory at ALLOC[0xX..0xY], but memory is uninitialized at [0xX..0xY], and this operation requires initialized memory --> tests/fail-dep/concurrency/libc_pthread_condattr_double_destroy.rs:LL:CC | LL | libc::pthread_condattr_destroy(attr.as_mut_ptr()); @@ -9,10 +9,8 @@ LL | libc::pthread_condattr_destroy(attr.as_mut_ptr()); = note: BACKTRACE: = note: inside `main` at tests/fail-dep/concurrency/libc_pthread_condattr_double_destroy.rs:LL:CC -Uninitialized memory occurred at ALLOC[0x0..0x4], in this allocation: -ALLOC (stack variable, size: 4, align: 4) { - __ __ __ __ │ ░░░░ -} +Uninitialized memory occurred at ALLOC[0xX..0xY], in this allocation: +ALLOC DUMP note: some details are omitted, run with `MIRIFLAGS=-Zmiri-backtrace=full` for a verbose backtrace diff --git a/src/tools/miri/tests/fail-dep/concurrency/libc_pthread_mutex_double_destroy.rs b/src/tools/miri/tests/fail-dep/concurrency/libc_pthread_mutex_double_destroy.rs index 71a80292032..f04fe8be6b3 100644 --- a/src/tools/miri/tests/fail-dep/concurrency/libc_pthread_mutex_double_destroy.rs +++ b/src/tools/miri/tests/fail-dep/concurrency/libc_pthread_mutex_double_destroy.rs @@ -1,4 +1,6 @@ //@ignore-target: windows # No pthreads on Windows +//@ normalize-stderr-test: "(\n)ALLOC \(.*\) \{\n(.*\n)*\}(\n)" -> "${1}ALLOC DUMP${3}" +//@ normalize-stderr-test: "\[0x[0-9a-z]..0x[0-9a-z]\]" -> "[0xX..0xY]" /// Test that destroying a pthread_mutex twice fails, even without a check for number validity diff --git a/src/tools/miri/tests/fail-dep/concurrency/libc_pthread_mutex_double_destroy.stderr b/src/tools/miri/tests/fail-dep/concurrency/libc_pthread_mutex_double_destroy.stderr index 251f8036e38..05db823b252 100644 --- a/src/tools/miri/tests/fail-dep/concurrency/libc_pthread_mutex_double_destroy.stderr +++ b/src/tools/miri/tests/fail-dep/concurrency/libc_pthread_mutex_double_destroy.stderr @@ -1,4 +1,4 @@ -error: Undefined Behavior: reading memory at ALLOC[0x0..0x4], but memory is uninitialized at [0x0..0x4], and this operation requires initialized memory +error: Undefined Behavior: reading memory at ALLOC[0xX..0xY], but memory is uninitialized at [0xX..0xY], and this operation requires initialized memory --> tests/fail-dep/concurrency/libc_pthread_mutex_double_destroy.rs:LL:CC | LL | libc::pthread_mutex_destroy(mutex.as_mut_ptr()); @@ -9,12 +9,8 @@ LL | libc::pthread_mutex_destroy(mutex.as_mut_ptr()); = note: BACKTRACE: = note: inside `main` at tests/fail-dep/concurrency/libc_pthread_mutex_double_destroy.rs:LL:CC -Uninitialized memory occurred at ALLOC[0x0..0x4], in this allocation: -ALLOC (stack variable, size: 40, align: 8) { - 0x00 │ __ __ __ __ __ __ __ __ __ __ __ __ __ __ __ __ │ ░░░░░░░░░░░░░░░░ - 0x10 │ __ __ __ __ __ __ __ __ __ __ __ __ __ __ __ __ │ ░░░░░░░░░░░░░░░░ - 0x20 │ __ __ __ __ __ __ __ __ │ ░░░░░░░░ -} +Uninitialized memory occurred at ALLOC[0xX..0xY], in this allocation: +ALLOC DUMP note: some details are omitted, run with `MIRIFLAGS=-Zmiri-backtrace=full` for a verbose backtrace diff --git a/src/tools/miri/tests/fail-dep/concurrency/libc_pthread_mutexattr_double_destroy.rs b/src/tools/miri/tests/fail-dep/concurrency/libc_pthread_mutexattr_double_destroy.rs index 28dacc9931a..d9daf5259bb 100644 --- a/src/tools/miri/tests/fail-dep/concurrency/libc_pthread_mutexattr_double_destroy.rs +++ b/src/tools/miri/tests/fail-dep/concurrency/libc_pthread_mutexattr_double_destroy.rs @@ -1,4 +1,6 @@ //@ignore-target: windows # No pthreads on Windows +//@ normalize-stderr-test: "(\n)ALLOC \(.*\) \{\n(.*\n)*\}(\n)" -> "${1}ALLOC DUMP${3}" +//@ normalize-stderr-test: "\[0x[0-9a-z]..0x[0-9a-z]\]" -> "[0xX..0xY]" /// Test that destroying a pthread_mutexattr twice fails, even without a check for number validity diff --git a/src/tools/miri/tests/fail-dep/concurrency/libc_pthread_mutexattr_double_destroy.stderr b/src/tools/miri/tests/fail-dep/concurrency/libc_pthread_mutexattr_double_destroy.stderr index b341efb7770..ee3883de36b 100644 --- a/src/tools/miri/tests/fail-dep/concurrency/libc_pthread_mutexattr_double_destroy.stderr +++ b/src/tools/miri/tests/fail-dep/concurrency/libc_pthread_mutexattr_double_destroy.stderr @@ -1,4 +1,4 @@ -error: Undefined Behavior: reading memory at ALLOC[0x0..0x4], but memory is uninitialized at [0x0..0x4], and this operation requires initialized memory +error: Undefined Behavior: reading memory at ALLOC[0xX..0xY], but memory is uninitialized at [0xX..0xY], and this operation requires initialized memory --> tests/fail-dep/concurrency/libc_pthread_mutexattr_double_destroy.rs:LL:CC | LL | libc::pthread_mutexattr_destroy(attr.as_mut_ptr()); @@ -9,10 +9,8 @@ LL | libc::pthread_mutexattr_destroy(attr.as_mut_ptr()); = note: BACKTRACE: = note: inside `main` at tests/fail-dep/concurrency/libc_pthread_mutexattr_double_destroy.rs:LL:CC -Uninitialized memory occurred at ALLOC[0x0..0x4], in this allocation: -ALLOC (stack variable, size: 4, align: 4) { - __ __ __ __ │ ░░░░ -} +Uninitialized memory occurred at ALLOC[0xX..0xY], in this allocation: +ALLOC DUMP note: some details are omitted, run with `MIRIFLAGS=-Zmiri-backtrace=full` for a verbose backtrace diff --git a/src/tools/miri/tests/fail-dep/concurrency/libc_pthread_rwlock_double_destroy.rs b/src/tools/miri/tests/fail-dep/concurrency/libc_pthread_rwlock_double_destroy.rs index a46a124bf2e..720ba71d238 100644 --- a/src/tools/miri/tests/fail-dep/concurrency/libc_pthread_rwlock_double_destroy.rs +++ b/src/tools/miri/tests/fail-dep/concurrency/libc_pthread_rwlock_double_destroy.rs @@ -1,4 +1,6 @@ //@ignore-target: windows # No pthreads on Windows +//@ normalize-stderr-test: "(\n)ALLOC \(.*\) \{\n(.*\n)*\}(\n)" -> "${1}ALLOC DUMP${3}" +//@ normalize-stderr-test: "\[0x[0-9a-z]..0x[0-9a-z]\]" -> "[0xX..0xY]" /// Test that destroying a pthread_rwlock twice fails, even without a check for number validity diff --git a/src/tools/miri/tests/fail-dep/concurrency/libc_pthread_rwlock_double_destroy.stderr b/src/tools/miri/tests/fail-dep/concurrency/libc_pthread_rwlock_double_destroy.stderr index 8f388577a27..430398dc8fd 100644 --- a/src/tools/miri/tests/fail-dep/concurrency/libc_pthread_rwlock_double_destroy.stderr +++ b/src/tools/miri/tests/fail-dep/concurrency/libc_pthread_rwlock_double_destroy.stderr @@ -1,4 +1,4 @@ -error: Undefined Behavior: reading memory at ALLOC[0x0..0x4], but memory is uninitialized at [0x0..0x4], and this operation requires initialized memory +error: Undefined Behavior: reading memory at ALLOC[0xX..0xY], but memory is uninitialized at [0xX..0xY], and this operation requires initialized memory --> tests/fail-dep/concurrency/libc_pthread_rwlock_double_destroy.rs:LL:CC | LL | libc::pthread_rwlock_destroy(&mut lock); @@ -9,13 +9,8 @@ LL | libc::pthread_rwlock_destroy(&mut lock); = note: BACKTRACE: = note: inside `main` at tests/fail-dep/concurrency/libc_pthread_rwlock_double_destroy.rs:LL:CC -Uninitialized memory occurred at ALLOC[0x0..0x4], in this allocation: -ALLOC (stack variable, size: 56, align: 8) { - 0x00 │ __ __ __ __ __ __ __ __ __ __ __ __ __ __ __ __ │ ░░░░░░░░░░░░░░░░ - 0x10 │ __ __ __ __ __ __ __ __ __ __ __ __ __ __ __ __ │ ░░░░░░░░░░░░░░░░ - 0x20 │ __ __ __ __ __ __ __ __ __ __ __ __ __ __ __ __ │ ░░░░░░░░░░░░░░░░ - 0x30 │ __ __ __ __ __ __ __ __ │ ░░░░░░░░ -} +Uninitialized memory occurred at ALLOC[0xX..0xY], in this allocation: +ALLOC DUMP note: some details are omitted, run with `MIRIFLAGS=-Zmiri-backtrace=full` for a verbose backtrace diff --git a/src/tools/miri/tests/fail/intrinsics/ptr_metadata_uninit_slice_data.rs b/src/tools/miri/tests/fail/intrinsics/ptr_metadata_uninit_slice_data.rs index 16f07c7ee99..c03e468cfba 100644 --- a/src/tools/miri/tests/fail/intrinsics/ptr_metadata_uninit_slice_data.rs +++ b/src/tools/miri/tests/fail/intrinsics/ptr_metadata_uninit_slice_data.rs @@ -1,4 +1,7 @@ //@compile-flags: -Zmiri-disable-validation +//@ normalize-stderr-test: "(\n)ALLOC \(.*\) \{\n(.*\n)*\}(\n)" -> "${1}ALLOC DUMP${3}" +//@ normalize-stderr-test: "\[0x[0-9a-z]..0x[0-9a-z]\]" -> "[0xX..0xY]" + #![feature(core_intrinsics, custom_mir)] use std::intrinsics::mir::*; @@ -9,7 +12,7 @@ use std::intrinsics::mir::*; pub unsafe fn deref_meta(p: *const *const [i32]) -> usize { mir! { { - RET = PtrMetadata(*p); //~ ERROR: /Undefined Behavior: .*, but memory is uninitialized/ + RET = PtrMetadata(*p); //~ ERROR: /Undefined Behavior: .* but memory is uninitialized/ Return() } } diff --git a/src/tools/miri/tests/fail/intrinsics/ptr_metadata_uninit_slice_data.stderr b/src/tools/miri/tests/fail/intrinsics/ptr_metadata_uninit_slice_data.stderr index 9bacd80f7d5..1e7f500edb2 100644 --- a/src/tools/miri/tests/fail/intrinsics/ptr_metadata_uninit_slice_data.stderr +++ b/src/tools/miri/tests/fail/intrinsics/ptr_metadata_uninit_slice_data.stderr @@ -1,4 +1,4 @@ -error: Undefined Behavior: reading memory at ALLOC[0x0..0x8], but memory is uninitialized at [0x0..0x8], and this operation requires initialized memory +error: Undefined Behavior: reading memory at ALLOC[0xX..0xY], but memory is uninitialized at [0xX..0xY], and this operation requires initialized memory --> tests/fail/intrinsics/ptr_metadata_uninit_slice_data.rs:LL:CC | LL | RET = PtrMetadata(*p); @@ -14,10 +14,8 @@ note: inside `main` LL | let _meta = deref_meta(p.as_ptr().cast()); | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ -Uninitialized memory occurred at ALLOC[0x0..0x8], in this allocation: -ALLOC (stack variable, size: 16, align: 8) { - __ __ __ __ __ __ __ __ 04 00 00 00 00 00 00 00 │ ░░░░░░░░........ -} +Uninitialized memory occurred at ALLOC[0xX..0xY], in this allocation: +ALLOC DUMP note: some details are omitted, run with `MIRIFLAGS=-Zmiri-backtrace=full` for a verbose backtrace diff --git a/src/tools/miri/tests/fail/intrinsics/ptr_metadata_uninit_slice_len.rs b/src/tools/miri/tests/fail/intrinsics/ptr_metadata_uninit_slice_len.rs index 38db894537b..7053c0f6e18 100644 --- a/src/tools/miri/tests/fail/intrinsics/ptr_metadata_uninit_slice_len.rs +++ b/src/tools/miri/tests/fail/intrinsics/ptr_metadata_uninit_slice_len.rs @@ -1,4 +1,7 @@ //@compile-flags: -Zmiri-disable-validation +//@ normalize-stderr-test: "(\n)ALLOC \(.*\) \{\n(.*\n)*\}(\n)" -> "${1}ALLOC DUMP${3}" +//@ normalize-stderr-test: "\[0x[0-9a-z]+..0x[0-9a-z]+\]" -> "[0xX..0xY]" + #![feature(core_intrinsics, custom_mir)] use std::intrinsics::mir::*; @@ -9,7 +12,7 @@ use std::intrinsics::mir::*; pub unsafe fn deref_meta(p: *const *const [i32]) -> usize { mir! { { - RET = PtrMetadata(*p); //~ ERROR: /Undefined Behavior: .*, but memory is uninitialized/ + RET = PtrMetadata(*p); //~ ERROR: /Undefined Behavior: .* but memory is uninitialized/ Return() } } diff --git a/src/tools/miri/tests/fail/intrinsics/ptr_metadata_uninit_slice_len.stderr b/src/tools/miri/tests/fail/intrinsics/ptr_metadata_uninit_slice_len.stderr index 621325d72ff..80b4c8bec0d 100644 --- a/src/tools/miri/tests/fail/intrinsics/ptr_metadata_uninit_slice_len.stderr +++ b/src/tools/miri/tests/fail/intrinsics/ptr_metadata_uninit_slice_len.stderr @@ -12,7 +12,7 @@ LL | (*p.as_mut_ptr().cast::<[*const i32; 2]>())[0] = 4 as *const i32; = note: BACKTRACE: = note: inside `main` at tests/fail/intrinsics/ptr_metadata_uninit_slice_len.rs:LL:CC -error: Undefined Behavior: reading memory at ALLOC[0x8..0x10], but memory is uninitialized at [0x8..0x10], and this operation requires initialized memory +error: Undefined Behavior: reading memory at ALLOC[0xX..0xY], but memory is uninitialized at [0xX..0xY], and this operation requires initialized memory --> tests/fail/intrinsics/ptr_metadata_uninit_slice_len.rs:LL:CC | LL | RET = PtrMetadata(*p); @@ -28,10 +28,8 @@ note: inside `main` LL | let _meta = deref_meta(p.as_ptr().cast()); | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ -Uninitialized memory occurred at ALLOC[0x8..0x10], in this allocation: -ALLOC (stack variable, size: 16, align: 8) { - ╾────0x4[wildcard]────╼ __ __ __ __ __ __ __ __ │ ╾──────╼░░░░░░░░ -} +Uninitialized memory occurred at ALLOC[0xX..0xY], in this allocation: +ALLOC DUMP note: some details are omitted, run with `MIRIFLAGS=-Zmiri-backtrace=full` for a verbose backtrace diff --git a/src/tools/miri/tests/fail/intrinsics/ptr_metadata_uninit_thin.rs b/src/tools/miri/tests/fail/intrinsics/ptr_metadata_uninit_thin.rs index 179fd33ed7c..3ba29847337 100644 --- a/src/tools/miri/tests/fail/intrinsics/ptr_metadata_uninit_thin.rs +++ b/src/tools/miri/tests/fail/intrinsics/ptr_metadata_uninit_thin.rs @@ -1,4 +1,7 @@ //@compile-flags: -Zmiri-disable-validation +//@ normalize-stderr-test: "(\n)ALLOC \(.*\) \{\n(.*\n)*\}(\n)" -> "${1}ALLOC DUMP${3}" +//@ normalize-stderr-test: "\[0x[0-9a-z]..0x[0-9a-z]\]" -> "[0xX..0xY]" + #![feature(core_intrinsics, custom_mir)] use std::intrinsics::mir::*; diff --git a/src/tools/miri/tests/fail/intrinsics/ptr_metadata_uninit_thin.stderr b/src/tools/miri/tests/fail/intrinsics/ptr_metadata_uninit_thin.stderr index b0e45242057..7a1f3d6ea84 100644 --- a/src/tools/miri/tests/fail/intrinsics/ptr_metadata_uninit_thin.stderr +++ b/src/tools/miri/tests/fail/intrinsics/ptr_metadata_uninit_thin.stderr @@ -1,4 +1,4 @@ -error: Undefined Behavior: reading memory at ALLOC[0x0..0x8], but memory is uninitialized at [0x0..0x8], and this operation requires initialized memory +error: Undefined Behavior: reading memory at ALLOC[0xX..0xY], but memory is uninitialized at [0xX..0xY], and this operation requires initialized memory --> tests/fail/intrinsics/ptr_metadata_uninit_thin.rs:LL:CC | LL | RET = PtrMetadata(*p); @@ -14,10 +14,8 @@ note: inside `main` LL | let _meta = deref_meta(p.as_ptr()); | ^^^^^^^^^^^^^^^^^^^^^^ -Uninitialized memory occurred at ALLOC[0x0..0x8], in this allocation: -ALLOC (stack variable, size: 8, align: 8) { - __ __ __ __ __ __ __ __ │ ░░░░░░░░ -} +Uninitialized memory occurred at ALLOC[0xX..0xY], in this allocation: +ALLOC DUMP note: some details are omitted, run with `MIRIFLAGS=-Zmiri-backtrace=full` for a verbose backtrace diff --git a/src/tools/miri/tests/fail/read_from_trivial_switch.rs b/src/tools/miri/tests/fail/read_from_trivial_switch.rs index 35117c80b73..2696c42aeae 100644 --- a/src/tools/miri/tests/fail/read_from_trivial_switch.rs +++ b/src/tools/miri/tests/fail/read_from_trivial_switch.rs @@ -4,6 +4,9 @@ // // See <https://github.com/rust-lang/miri/issues/4237>. +//@ normalize-stderr-test: "(\n)ALLOC \(.*\) \{\n(.*\n)*\}(\n)" -> "${1}ALLOC DUMP${3}" +//@ normalize-stderr-test: "\[0x[0-9a-z]..0x[0-9a-z]\]" -> "[0xX..0xY]" + use std::mem::MaybeUninit; fn main() { diff --git a/src/tools/miri/tests/fail/read_from_trivial_switch.stderr b/src/tools/miri/tests/fail/read_from_trivial_switch.stderr index 1d0c76c3c08..1dcc341b7e6 100644 --- a/src/tools/miri/tests/fail/read_from_trivial_switch.stderr +++ b/src/tools/miri/tests/fail/read_from_trivial_switch.stderr @@ -1,4 +1,4 @@ -error: Undefined Behavior: reading memory at ALLOC[0x0..0x4], but memory is uninitialized at [0x0..0x4], and this operation requires initialized memory +error: Undefined Behavior: reading memory at ALLOC[0xX..0xY], but memory is uninitialized at [0xX..0xY], and this operation requires initialized memory --> tests/fail/read_from_trivial_switch.rs:LL:CC | LL | let &(0 | _) = bad_ref; @@ -9,10 +9,8 @@ LL | let &(0 | _) = bad_ref; = note: BACKTRACE: = note: inside `main` at tests/fail/read_from_trivial_switch.rs:LL:CC -Uninitialized memory occurred at ALLOC[0x0..0x4], in this allocation: -ALLOC (stack variable, size: 4, align: 4) { - __ __ __ __ │ ░░░░ -} +Uninitialized memory occurred at ALLOC[0xX..0xY], in this allocation: +ALLOC DUMP note: some details are omitted, run with `MIRIFLAGS=-Zmiri-backtrace=full` for a verbose backtrace diff --git a/src/tools/miri/tests/fail/uninit/padding-enum.rs b/src/tools/miri/tests/fail/uninit/padding-enum.rs index e1a16bea23c..606fa21016f 100644 --- a/src/tools/miri/tests/fail/uninit/padding-enum.rs +++ b/src/tools/miri/tests/fail/uninit/padding-enum.rs @@ -1,3 +1,6 @@ +//@ normalize-stderr-test: "(\n)ALLOC \(.*\) \{\n(.*\n)*\}(\n)" -> "${1}ALLOC DUMP${3}" +//@ normalize-stderr-test: "\[0x[0-9a-z]..0x[0-9a-z]\]" -> "[0xX..0xY]" + use std::mem; // We have three fields to avoid the ScalarPair optimization. diff --git a/src/tools/miri/tests/fail/uninit/padding-enum.stderr b/src/tools/miri/tests/fail/uninit/padding-enum.stderr index ee3867fc60b..64229ac8817 100644 --- a/src/tools/miri/tests/fail/uninit/padding-enum.stderr +++ b/src/tools/miri/tests/fail/uninit/padding-enum.stderr @@ -1,4 +1,4 @@ -error: Undefined Behavior: reading memory at ALLOC[0x8..0x9], but memory is uninitialized at [0x8..0x9], and this operation requires initialized memory +error: Undefined Behavior: reading memory at ALLOC[0xX..0xY], but memory is uninitialized at [0xX..0xY], and this operation requires initialized memory --> tests/fail/uninit/padding-enum.rs:LL:CC | LL | let _val = *c.add(padding_offset); @@ -9,11 +9,8 @@ LL | let _val = *c.add(padding_offset); = note: BACKTRACE: = note: inside `main` at tests/fail/uninit/padding-enum.rs:LL:CC -Uninitialized memory occurred at ALLOC[0x8..0x9], in this allocation: -ALLOC (stack variable, size: 24, align: 8) { - 0x00 │ 00 00 00 00 00 00 00 00 __ __ __ __ __ __ __ __ │ ........░░░░░░░░ - 0x10 │ __ __ __ __ __ __ __ __ │ ░░░░░░░░ -} +Uninitialized memory occurred at ALLOC[0xX..0xY], in this allocation: +ALLOC DUMP note: some details are omitted, run with `MIRIFLAGS=-Zmiri-backtrace=full` for a verbose backtrace diff --git a/src/tools/miri/tests/fail/uninit/padding-pair.rs b/src/tools/miri/tests/fail/uninit/padding-pair.rs index c8c00b3c65a..70ae48ff77d 100644 --- a/src/tools/miri/tests/fail/uninit/padding-pair.rs +++ b/src/tools/miri/tests/fail/uninit/padding-pair.rs @@ -1,3 +1,6 @@ +//@ normalize-stderr-test: "(\n)ALLOC \(.*\) \{\n(.*\n)*\}(\n)" -> "${1}ALLOC DUMP${3}" +//@ normalize-stderr-test: "\[0x[0-9a-z]..0x[0-9a-z]\]" -> "[0xX..0xY]" + #![feature(core_intrinsics)] use std::mem::{self, MaybeUninit}; diff --git a/src/tools/miri/tests/fail/uninit/padding-pair.stderr b/src/tools/miri/tests/fail/uninit/padding-pair.stderr index a9841815de3..2e7a577f204 100644 --- a/src/tools/miri/tests/fail/uninit/padding-pair.stderr +++ b/src/tools/miri/tests/fail/uninit/padding-pair.stderr @@ -1,4 +1,4 @@ -error: Undefined Behavior: reading memory at ALLOC[0x9..0xa], but memory is uninitialized at [0x9..0xa], and this operation requires initialized memory +error: Undefined Behavior: reading memory at ALLOC[0xX..0xY], but memory is uninitialized at [0xX..0xY], and this operation requires initialized memory --> tests/fail/uninit/padding-pair.rs:LL:CC | LL | let v = unsafe { *z.offset(first_undef) }; @@ -9,10 +9,8 @@ LL | let v = unsafe { *z.offset(first_undef) }; = note: BACKTRACE: = note: inside `main` at tests/fail/uninit/padding-pair.rs:LL:CC -Uninitialized memory occurred at ALLOC[0x9..0xa], in this allocation: -ALLOC (stack variable, size: 16, align: 8) { - 00 00 00 00 00 00 00 00 00 __ __ __ __ __ __ __ │ .........░░░░░░░ -} +Uninitialized memory occurred at ALLOC[0xX..0xY], in this allocation: +ALLOC DUMP note: some details are omitted, run with `MIRIFLAGS=-Zmiri-backtrace=full` for a verbose backtrace diff --git a/src/tools/miri/tests/fail/uninit/padding-wide-ptr.rs b/src/tools/miri/tests/fail/uninit/padding-wide-ptr.rs index 4e363dbf81e..549785e0223 100644 --- a/src/tools/miri/tests/fail/uninit/padding-wide-ptr.rs +++ b/src/tools/miri/tests/fail/uninit/padding-wide-ptr.rs @@ -1,3 +1,6 @@ +//@ normalize-stderr-test: "(\n)ALLOC \(.*\) \{\n(.*\n)*\}(\n)" -> "${1}ALLOC DUMP${3}" +//@ normalize-stderr-test: "\[0x[0-9a-z]..0x[0-9a-z]\]" -> "[0xX..0xY]" + use std::mem; // If this is `None`, the metadata becomes padding. diff --git a/src/tools/miri/tests/fail/uninit/padding-wide-ptr.stderr b/src/tools/miri/tests/fail/uninit/padding-wide-ptr.stderr index f6446a5a95b..ce11320ca1b 100644 --- a/src/tools/miri/tests/fail/uninit/padding-wide-ptr.stderr +++ b/src/tools/miri/tests/fail/uninit/padding-wide-ptr.stderr @@ -1,4 +1,4 @@ -error: Undefined Behavior: reading memory at ALLOC[0x8..0x9], but memory is uninitialized at [0x8..0x9], and this operation requires initialized memory +error: Undefined Behavior: reading memory at ALLOC[0xX..0xY], but memory is uninitialized at [0xX..0xY], and this operation requires initialized memory --> tests/fail/uninit/padding-wide-ptr.rs:LL:CC | LL | let _val = *c.add(mem::size_of::<*const u8>()); @@ -9,10 +9,8 @@ LL | let _val = *c.add(mem::size_of::<*const u8>()); = note: BACKTRACE: = note: inside `main` at tests/fail/uninit/padding-wide-ptr.rs:LL:CC -Uninitialized memory occurred at ALLOC[0x8..0x9], in this allocation: -ALLOC (stack variable, size: 16, align: 8) { - 00 00 00 00 00 00 00 00 __ __ __ __ __ __ __ __ │ ........░░░░░░░░ -} +Uninitialized memory occurred at ALLOC[0xX..0xY], in this allocation: +ALLOC DUMP note: some details are omitted, run with `MIRIFLAGS=-Zmiri-backtrace=full` for a verbose backtrace diff --git a/src/tools/miri/tests/fail/uninit/transmute-pair-uninit.rs b/src/tools/miri/tests/fail/uninit/transmute-pair-uninit.rs index 0ba5520a544..c1d284c7057 100644 --- a/src/tools/miri/tests/fail/uninit/transmute-pair-uninit.rs +++ b/src/tools/miri/tests/fail/uninit/transmute-pair-uninit.rs @@ -1,3 +1,6 @@ +//@ normalize-stderr-test: "(\n)ALLOC \(.*\) \{\n(.*\n)*\}(\n)" -> "${1}ALLOC DUMP${3}" +//@ normalize-stderr-test: "\[0x[0-9a-z]..0x[0-9a-z]\]" -> "[0xX..0xY]" + #![feature(core_intrinsics)] use std::mem::{self, MaybeUninit}; diff --git a/src/tools/miri/tests/fail/uninit/transmute-pair-uninit.stderr b/src/tools/miri/tests/fail/uninit/transmute-pair-uninit.stderr index 385d877e2ee..eb049dd41ec 100644 --- a/src/tools/miri/tests/fail/uninit/transmute-pair-uninit.stderr +++ b/src/tools/miri/tests/fail/uninit/transmute-pair-uninit.stderr @@ -1,4 +1,4 @@ -error: Undefined Behavior: reading memory at ALLOC[0x9..0xa], but memory is uninitialized at [0x9..0xa], and this operation requires initialized memory +error: Undefined Behavior: reading memory at ALLOC[0xX..0xY], but memory is uninitialized at [0xX..0xY], and this operation requires initialized memory --> tests/fail/uninit/transmute-pair-uninit.rs:LL:CC | LL | let v = unsafe { *z.offset(first_undef) }; @@ -9,10 +9,8 @@ LL | let v = unsafe { *z.offset(first_undef) }; = note: BACKTRACE: = note: inside `main` at tests/fail/uninit/transmute-pair-uninit.rs:LL:CC -Uninitialized memory occurred at ALLOC[0x9..0xa], in this allocation: -ALLOC (stack variable, size: 16, align: 8) { - 00 00 00 00 00 00 00 00 00 __ __ __ __ __ __ __ │ .........░░░░░░░ -} +Uninitialized memory occurred at ALLOC[0xX..0xY], in this allocation: +ALLOC DUMP note: some details are omitted, run with `MIRIFLAGS=-Zmiri-backtrace=full` for a verbose backtrace diff --git a/src/tools/miri/tests/native-lib/fail/tracing/partial_init.rs b/src/tools/miri/tests/native-lib/fail/tracing/partial_init.rs index e267f82e215..7ab160773ff 100644 --- a/src/tools/miri/tests/native-lib/fail/tracing/partial_init.rs +++ b/src/tools/miri/tests/native-lib/fail/tracing/partial_init.rs @@ -20,6 +20,6 @@ fn partial_init() { assert!(*slice_ptr == 0); assert!(*slice_ptr.offset(1) == 0); // Reading the third is UB! - let _val = *slice_ptr.offset(2); //~ ERROR: Undefined Behavior: using uninitialized data + let _val = *slice_ptr.offset(2); //~ ERROR: /Undefined Behavior: reading memory.*, but memory is uninitialized/ } } diff --git a/src/tools/miri/tests/native-lib/fail/tracing/partial_init.stderr b/src/tools/miri/tests/native-lib/fail/tracing/partial_init.stderr index 84fd913b5e5..74a599ede5c 100644 --- a/src/tools/miri/tests/native-lib/fail/tracing/partial_init.stderr +++ b/src/tools/miri/tests/native-lib/fail/tracing/partial_init.stderr @@ -17,7 +17,7 @@ note: inside `main` LL | partial_init(); | ^^^^^^^^^^^^^^ -error: Undefined Behavior: using uninitialized data, but this operation requires initialized memory +error: Undefined Behavior: reading memory at ALLOC[0x2..0x3], but memory is uninitialized at [0x2..0x3], and this operation requires initialized memory --> tests/native-lib/fail/tracing/partial_init.rs:LL:CC | LL | let _val = *slice_ptr.offset(2); @@ -33,6 +33,11 @@ note: inside `main` LL | partial_init(); | ^^^^^^^^^^^^^^ +Uninitialized memory occurred at ALLOC[0x2..0x3], in this allocation: +ALLOC (stack variable, size: 3, align: 1) { + ╾00[wildcard] (1 ptr byte)╼ ╾00[wildcard] (1 ptr byte)╼ __ │ ━━░ +} + note: some details are omitted, run with `MIRIFLAGS=-Zmiri-backtrace=full` for a verbose backtrace error: aborting due to 1 previous error; 1 warning emitted diff --git a/tests/ui/const-generics/min_const_generics/invalid-patterns.32bit.stderr b/tests/ui/const-generics/min_const_generics/invalid-patterns.32bit.stderr index 107179516bc..0c57eddbe93 100644 --- a/tests/ui/const-generics/min_const_generics/invalid-patterns.32bit.stderr +++ b/tests/ui/const-generics/min_const_generics/invalid-patterns.32bit.stderr @@ -3,6 +3,10 @@ error[E0080]: reading memory at ALLOC0[0x0..0x4], but memory is uninitialized at | LL | get_flag::<false, { unsafe { char_raw.character } }>(); | ^^^^^^^^^^^^^^^^^^ evaluation of `main::{constant#7}` failed here + | + = note: the raw bytes of the constant (size: 4, align: 4) { + ff __ __ __ │ .░░░ + } error[E0080]: constructing invalid value: encountered 0x42, but expected a boolean --> $DIR/invalid-patterns.rs:42:14 @@ -31,6 +35,10 @@ error[E0080]: reading memory at ALLOC1[0x0..0x4], but memory is uninitialized at | LL | get_flag::<{ unsafe { bool_raw.boolean } }, { unsafe { char_raw.character } }>(); | ^^^^^^^^^^^^^^^^^^ evaluation of `main::{constant#11}` failed here + | + = note: the raw bytes of the constant (size: 4, align: 4) { + ff __ __ __ │ .░░░ + } error[E0308]: mismatched types --> $DIR/invalid-patterns.rs:31:21 diff --git a/tests/ui/const-generics/min_const_generics/invalid-patterns.64bit.stderr b/tests/ui/const-generics/min_const_generics/invalid-patterns.64bit.stderr index 107179516bc..0c57eddbe93 100644 --- a/tests/ui/const-generics/min_const_generics/invalid-patterns.64bit.stderr +++ b/tests/ui/const-generics/min_const_generics/invalid-patterns.64bit.stderr @@ -3,6 +3,10 @@ error[E0080]: reading memory at ALLOC0[0x0..0x4], but memory is uninitialized at | LL | get_flag::<false, { unsafe { char_raw.character } }>(); | ^^^^^^^^^^^^^^^^^^ evaluation of `main::{constant#7}` failed here + | + = note: the raw bytes of the constant (size: 4, align: 4) { + ff __ __ __ │ .░░░ + } error[E0080]: constructing invalid value: encountered 0x42, but expected a boolean --> $DIR/invalid-patterns.rs:42:14 @@ -31,6 +35,10 @@ error[E0080]: reading memory at ALLOC1[0x0..0x4], but memory is uninitialized at | LL | get_flag::<{ unsafe { bool_raw.boolean } }, { unsafe { char_raw.character } }>(); | ^^^^^^^^^^^^^^^^^^ evaluation of `main::{constant#11}` failed here + | + = note: the raw bytes of the constant (size: 4, align: 4) { + ff __ __ __ │ .░░░ + } error[E0308]: mismatched types --> $DIR/invalid-patterns.rs:31:21 diff --git a/tests/ui/consts/const-compare-bytes-ub.stderr b/tests/ui/consts/const-compare-bytes-ub.stderr index c1706a8c4b0..770a55cc726 100644 --- a/tests/ui/consts/const-compare-bytes-ub.stderr +++ b/tests/ui/consts/const-compare-bytes-ub.stderr @@ -33,12 +33,20 @@ error[E0080]: reading memory at ALLOC2[0x0..0x1], but memory is uninitialized at | LL | compare_bytes(MaybeUninit::uninit().as_ptr(), [1].as_ptr(), 1) | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ evaluation of `main::LHS_UNINIT` failed here + | + = note: the raw bytes of the constant (size: 1, align: 1) { + __ │ ░ + } error[E0080]: reading memory at ALLOC3[0x0..0x1], but memory is uninitialized at [0x0..0x1], and this operation requires initialized memory --> $DIR/const-compare-bytes-ub.rs:33:9 | LL | compare_bytes([1].as_ptr(), MaybeUninit::uninit().as_ptr(), 1) | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ evaluation of `main::RHS_UNINIT` failed here + | + = note: the raw bytes of the constant (size: 1, align: 1) { + __ │ ░ + } error[E0080]: unable to turn pointer into integer --> $DIR/const-compare-bytes-ub.rs:37:9 diff --git a/tests/ui/consts/const-err-enum-discriminant.32bit.stderr b/tests/ui/consts/const-err-enum-discriminant.32bit.stderr new file mode 100644 index 00000000000..cc786108f64 --- /dev/null +++ b/tests/ui/consts/const-err-enum-discriminant.32bit.stderr @@ -0,0 +1,13 @@ +error[E0080]: reading memory at ALLOC0[0x0..0x4], but memory is uninitialized at [0x0..0x4], and this operation requires initialized memory + --> $DIR/const-err-enum-discriminant.rs:10:21 + | +LL | Boo = [unsafe { Foo { b: () }.a }; 4][3], + | ^^^^^^^^^^^^^^^ evaluation of `Bar::Boo::{constant#0}` failed here + | + = note: the raw bytes of the constant (size: 4, align: 4) { + __ __ __ __ │ ░░░░ + } + +error: aborting due to 1 previous error + +For more information about this error, try `rustc --explain E0080`. diff --git a/tests/ui/consts/const-err-enum-discriminant.stderr b/tests/ui/consts/const-err-enum-discriminant.64bit.stderr index f935d1054de..1d32851aac1 100644 --- a/tests/ui/consts/const-err-enum-discriminant.stderr +++ b/tests/ui/consts/const-err-enum-discriminant.64bit.stderr @@ -1,8 +1,12 @@ error[E0080]: reading memory at ALLOC0[0x0..0x8], but memory is uninitialized at [0x0..0x8], and this operation requires initialized memory - --> $DIR/const-err-enum-discriminant.rs:8:21 + --> $DIR/const-err-enum-discriminant.rs:10:21 | LL | Boo = [unsafe { Foo { b: () }.a }; 4][3], | ^^^^^^^^^^^^^^^ evaluation of `Bar::Boo::{constant#0}` failed here + | + = note: the raw bytes of the constant (size: 8, align: 8) { + __ __ __ __ __ __ __ __ │ ░░░░░░░░ + } error: aborting due to 1 previous error diff --git a/tests/ui/consts/const-err-enum-discriminant.rs b/tests/ui/consts/const-err-enum-discriminant.rs index 190ef47f436..55674600584 100644 --- a/tests/ui/consts/const-err-enum-discriminant.rs +++ b/tests/ui/consts/const-err-enum-discriminant.rs @@ -1,3 +1,5 @@ +//@ stderr-per-bitwidth + #[derive(Copy, Clone)] union Foo { a: isize, diff --git a/tests/ui/consts/const-eval/const-pointer-values-in-various-types.64bit.stderr b/tests/ui/consts/const-eval/const-pointer-values-in-various-types.64bit.stderr index 65e846b5741..60f6ef0f64b 100644 --- a/tests/ui/consts/const-eval/const-pointer-values-in-various-types.64bit.stderr +++ b/tests/ui/consts/const-eval/const-pointer-values-in-various-types.64bit.stderr @@ -43,11 +43,15 @@ LL | const I32_REF_U64_UNION: u64 = unsafe { Nonsense { int_32_ref: &3 }.uin = help: this code performed an operation that depends on the underlying bytes representing a pointer = help: the absolute address of a pointer is not known at compile-time, so such operations are not supported -error[E0080]: reading memory at ALLOC0[0x0..0x10], but memory is uninitialized at [0x8..0x10], and this operation requires initialized memory +error[E0080]: reading memory at ALLOC2[0x0..0x10], but memory is uninitialized at [0x8..0x10], and this operation requires initialized memory --> $DIR/const-pointer-values-in-various-types.rs:42:47 | LL | const I32_REF_U128_UNION: u128 = unsafe { Nonsense { int_32_ref: &3 }.uint_128 }; | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ evaluation of `main::I32_REF_U128_UNION` failed here + | + = note: the raw bytes of the constant (size: 16, align: 16) { + ╾ALLOC0<imm>╼ __ __ __ __ __ __ __ __ │ ╾──────╼░░░░░░░░ + } error[E0080]: unable to turn pointer into integer --> $DIR/const-pointer-values-in-various-types.rs:45:43 @@ -85,11 +89,15 @@ LL | const I32_REF_I64_UNION: i64 = unsafe { Nonsense { int_32_ref: &3 }.int = help: this code performed an operation that depends on the underlying bytes representing a pointer = help: the absolute address of a pointer is not known at compile-time, so such operations are not supported -error[E0080]: reading memory at ALLOC1[0x0..0x10], but memory is uninitialized at [0x8..0x10], and this operation requires initialized memory +error[E0080]: reading memory at ALLOC3[0x0..0x10], but memory is uninitialized at [0x8..0x10], and this operation requires initialized memory --> $DIR/const-pointer-values-in-various-types.rs:57:47 | LL | const I32_REF_I128_UNION: i128 = unsafe { Nonsense { int_32_ref: &3 }.int_128 }; | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ evaluation of `main::I32_REF_I128_UNION` failed here + | + = note: the raw bytes of the constant (size: 16, align: 16) { + ╾ALLOC1<imm>╼ __ __ __ __ __ __ __ __ │ ╾──────╼░░░░░░░░ + } error[E0080]: unable to turn pointer into integer --> $DIR/const-pointer-values-in-various-types.rs:60:45 diff --git a/tests/ui/consts/const-eval/ub-enum-overwrite.stderr b/tests/ui/consts/const-eval/ub-enum-overwrite.stderr index 14f369eace4..2fd01b67c49 100644 --- a/tests/ui/consts/const-eval/ub-enum-overwrite.stderr +++ b/tests/ui/consts/const-eval/ub-enum-overwrite.stderr @@ -3,6 +3,10 @@ error[E0080]: reading memory at ALLOC0[0x1..0x2], but memory is uninitialized at | LL | unsafe { *p } | ^^ evaluation of `_` failed here + | + = note: the raw bytes of the constant (size: 2, align: 1) { + 01 __ │ .░ + } error: aborting due to 1 previous error diff --git a/tests/ui/consts/const-eval/ub-enum.rs b/tests/ui/consts/const-eval/ub-enum.rs index 52fc9945068..9c78bb6efed 100644 --- a/tests/ui/consts/const-eval/ub-enum.rs +++ b/tests/ui/consts/const-eval/ub-enum.rs @@ -1,7 +1,8 @@ // Strip out raw byte dumps to make comparison platform-independent: //@ normalize-stderr: "(the raw bytes of the constant) \(size: [0-9]*, align: [0-9]*\)" -> "$1 (size: $$SIZE, align: $$ALIGN)" -//@ normalize-stderr: "([0-9a-f][0-9a-f] |╾─*ALLOC[0-9]+(\+[a-z0-9]+)?(<imm>)?─*╼ )+ *│.*" -> "HEX_DUMP" +//@ normalize-stderr: "([0-9a-f][0-9a-f] |__ |╾─*ALLOC[0-9]+(\+[a-z0-9]+)?(<imm>)?─*╼ )+ *│.*" -> "HEX_DUMP" //@ normalize-stderr: "0x0+" -> "0x0" +//@ normalize-stderr: "0x[0-9](\.\.|\])" -> "0x%$1" //@ dont-require-annotations: NOTE #![feature(never_type)] diff --git a/tests/ui/consts/const-eval/ub-enum.stderr b/tests/ui/consts/const-eval/ub-enum.stderr index 6665830e250..5cbd6176c92 100644 --- a/tests/ui/consts/const-eval/ub-enum.stderr +++ b/tests/ui/consts/const-eval/ub-enum.stderr @@ -1,5 +1,5 @@ error[E0080]: constructing invalid value at .<enum-tag>: encountered 0x01, but expected a valid enum tag - --> $DIR/ub-enum.rs:29:1 + --> $DIR/ub-enum.rs:30:1 | LL | const BAD_ENUM: Enum = unsafe { mem::transmute(1usize) }; | ^^^^^^^^^^^^^^^^^^^^ it is undefined behavior to use this value @@ -10,7 +10,7 @@ LL | const BAD_ENUM: Enum = unsafe { mem::transmute(1usize) }; } error[E0080]: unable to turn pointer into integer - --> $DIR/ub-enum.rs:32:1 + --> $DIR/ub-enum.rs:33:1 | LL | const BAD_ENUM_PTR: Enum = unsafe { mem::transmute(&1) }; | ^^^^^^^^^^^^^^^^^^^^^^^^ evaluation of `BAD_ENUM_PTR` failed here @@ -19,7 +19,7 @@ LL | const BAD_ENUM_PTR: Enum = unsafe { mem::transmute(&1) }; = help: the absolute address of a pointer is not known at compile-time, so such operations are not supported error[E0080]: unable to turn pointer into integer - --> $DIR/ub-enum.rs:35:1 + --> $DIR/ub-enum.rs:36:1 | LL | const BAD_ENUM_WRAPPED: Wrap<Enum> = unsafe { mem::transmute(&1) }; | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ evaluation of `BAD_ENUM_WRAPPED` failed here @@ -28,7 +28,7 @@ LL | const BAD_ENUM_WRAPPED: Wrap<Enum> = unsafe { mem::transmute(&1) }; = help: the absolute address of a pointer is not known at compile-time, so such operations are not supported error[E0080]: constructing invalid value at .<enum-tag>: encountered 0x0, but expected a valid enum tag - --> $DIR/ub-enum.rs:47:1 + --> $DIR/ub-enum.rs:48:1 | LL | const BAD_ENUM2: Enum2 = unsafe { mem::transmute(0usize) }; | ^^^^^^^^^^^^^^^^^^^^^^ it is undefined behavior to use this value @@ -39,7 +39,7 @@ LL | const BAD_ENUM2: Enum2 = unsafe { mem::transmute(0usize) }; } error[E0080]: unable to turn pointer into integer - --> $DIR/ub-enum.rs:49:1 + --> $DIR/ub-enum.rs:50:1 | LL | const BAD_ENUM2_PTR: Enum2 = unsafe { mem::transmute(&0) }; | ^^^^^^^^^^^^^^^^^^^^^^^^^^ evaluation of `BAD_ENUM2_PTR` failed here @@ -48,7 +48,7 @@ LL | const BAD_ENUM2_PTR: Enum2 = unsafe { mem::transmute(&0) }; = help: the absolute address of a pointer is not known at compile-time, so such operations are not supported error[E0080]: unable to turn pointer into integer - --> $DIR/ub-enum.rs:52:1 + --> $DIR/ub-enum.rs:53:1 | LL | const BAD_ENUM2_WRAPPED: Wrap<Enum2> = unsafe { mem::transmute(&0) }; | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ evaluation of `BAD_ENUM2_WRAPPED` failed here @@ -56,14 +56,18 @@ LL | const BAD_ENUM2_WRAPPED: Wrap<Enum2> = unsafe { mem::transmute(&0) }; = help: this code performed an operation that depends on the underlying bytes representing a pointer = help: the absolute address of a pointer is not known at compile-time, so such operations are not supported -error[E0080]: reading memory at ALLOC0[0x0..0x8], but memory is uninitialized at [0x0..0x8], and this operation requires initialized memory - --> $DIR/ub-enum.rs:61:41 +error[E0080]: reading memory at ALLOC0[0x%..0x%], but memory is uninitialized at [0x%..0x%], and this operation requires initialized memory + --> $DIR/ub-enum.rs:62:41 | LL | const BAD_ENUM2_UNDEF: Enum2 = unsafe { MaybeUninit { uninit: () }.init }; | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ evaluation of `BAD_ENUM2_UNDEF` failed here + | + = note: the raw bytes of the constant (size: $SIZE, align: $ALIGN) { + HEX_DUMP + } error[E0080]: unable to turn pointer into integer - --> $DIR/ub-enum.rs:65:1 + --> $DIR/ub-enum.rs:66:1 | LL | const BAD_ENUM2_OPTION_PTR: Option<Enum2> = unsafe { mem::transmute(&0) }; | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ evaluation of `BAD_ENUM2_OPTION_PTR` failed here @@ -72,7 +76,7 @@ LL | const BAD_ENUM2_OPTION_PTR: Option<Enum2> = unsafe { mem::transmute(&0) }; = help: the absolute address of a pointer is not known at compile-time, so such operations are not supported error[E0080]: constructing invalid value at .<enum-tag>: encountered an uninhabited enum variant - --> $DIR/ub-enum.rs:82:1 + --> $DIR/ub-enum.rs:83:1 | LL | const BAD_UNINHABITED_VARIANT1: UninhDiscriminant = unsafe { mem::transmute(1u8) }; | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ it is undefined behavior to use this value @@ -83,7 +87,7 @@ LL | const BAD_UNINHABITED_VARIANT1: UninhDiscriminant = unsafe { mem::transmute } error[E0080]: constructing invalid value at .<enum-tag>: encountered an uninhabited enum variant - --> $DIR/ub-enum.rs:84:1 + --> $DIR/ub-enum.rs:85:1 | LL | const BAD_UNINHABITED_VARIANT2: UninhDiscriminant = unsafe { mem::transmute(3u8) }; | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ it is undefined behavior to use this value @@ -94,7 +98,7 @@ LL | const BAD_UNINHABITED_VARIANT2: UninhDiscriminant = unsafe { mem::transmute } error[E0080]: constructing invalid value at .<enum-variant(Some)>.0.1: encountered 0xffffffff, but expected a valid unicode scalar value (in `0..=0x10FFFF` but not in `0xD800..=0xDFFF`) - --> $DIR/ub-enum.rs:92:1 + --> $DIR/ub-enum.rs:93:1 | LL | const BAD_OPTION_CHAR: Option<(char, char)> = Some(('x', unsafe { mem::transmute(!0u32) })); | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ it is undefined behavior to use this value @@ -105,19 +109,19 @@ LL | const BAD_OPTION_CHAR: Option<(char, char)> = Some(('x', unsafe { mem::tran } error[E0080]: constructing invalid value at .<enum-tag>: encountered an uninhabited enum variant - --> $DIR/ub-enum.rs:97:77 + --> $DIR/ub-enum.rs:98:77 | LL | const BAD_UNINHABITED_WITH_DATA1: Result<(i32, Never), (i32, !)> = unsafe { mem::transmute(0u64) }; | ^^^^^^^^^^^^^^^^^^^^ evaluation of `BAD_UNINHABITED_WITH_DATA1` failed here error[E0080]: constructing invalid value at .<enum-tag>: encountered an uninhabited enum variant - --> $DIR/ub-enum.rs:99:77 + --> $DIR/ub-enum.rs:100:77 | LL | const BAD_UNINHABITED_WITH_DATA2: Result<(i32, !), (i32, Never)> = unsafe { mem::transmute(0u64) }; | ^^^^^^^^^^^^^^^^^^^^ evaluation of `BAD_UNINHABITED_WITH_DATA2` failed here error[E0080]: read discriminant of an uninhabited enum variant - --> $DIR/ub-enum.rs:105:9 + --> $DIR/ub-enum.rs:106:9 | LL | std::mem::discriminant(&*(&() as *const () as *const Never)); | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ evaluation of `TEST_ICE_89765` failed inside this call diff --git a/tests/ui/consts/const-eval/ub-nonnull.stderr b/tests/ui/consts/const-eval/ub-nonnull.stderr index c92797f330a..19ae66cf3c6 100644 --- a/tests/ui/consts/const-eval/ub-nonnull.stderr +++ b/tests/ui/consts/const-eval/ub-nonnull.stderr @@ -42,6 +42,10 @@ error[E0080]: reading memory at ALLOC2[0x0..0x1], but memory is uninitialized at | LL | const UNINIT: NonZero<u8> = unsafe { MaybeUninit { uninit: () }.init }; | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ evaluation of `UNINIT` failed here + | + = note: the raw bytes of the constant (size: $SIZE, align: $ALIGN) { + __ │ ░ + } error[E0080]: constructing invalid value: encountered 42, but expected something in the range 10..=30 --> $DIR/ub-nonnull.rs:44:1 diff --git a/tests/ui/consts/const-eval/ub-ref-ptr.rs b/tests/ui/consts/const-eval/ub-ref-ptr.rs index 64b48939be6..d8e5102fcbe 100644 --- a/tests/ui/consts/const-eval/ub-ref-ptr.rs +++ b/tests/ui/consts/const-eval/ub-ref-ptr.rs @@ -1,8 +1,9 @@ // ignore-tidy-linelength // Strip out raw byte dumps to make comparison platform-independent: //@ normalize-stderr: "(the raw bytes of the constant) \(size: [0-9]*, align: [0-9]*\)" -> "$1 (size: $$SIZE, align: $$ALIGN)" -//@ normalize-stderr: "([0-9a-f][0-9a-f] |╾─*ALLOC[0-9]+(\+[a-z0-9]+)?(<imm>)?─*╼ )+ *│.*" -> "HEX_DUMP" +//@ normalize-stderr: "([0-9a-f][0-9a-f] |__ |╾─*ALLOC[0-9]+(\+[a-z0-9]+)?(<imm>)?─*╼ )+ *│.*" -> "HEX_DUMP" //@ dont-require-annotations: NOTE +//@ normalize-stderr: "0x[0-9](\.\.|\])" -> "0x%$1" #![allow(invalid_value)] diff --git a/tests/ui/consts/const-eval/ub-ref-ptr.stderr b/tests/ui/consts/const-eval/ub-ref-ptr.stderr index beb54e43534..451ebb6eba1 100644 --- a/tests/ui/consts/const-eval/ub-ref-ptr.stderr +++ b/tests/ui/consts/const-eval/ub-ref-ptr.stderr @@ -1,5 +1,5 @@ error[E0080]: constructing invalid value: encountered an unaligned reference (required 2 byte alignment but found 1) - --> $DIR/ub-ref-ptr.rs:17:1 + --> $DIR/ub-ref-ptr.rs:18:1 | LL | const UNALIGNED: &u16 = unsafe { mem::transmute(&[0u8; 4]) }; | ^^^^^^^^^^^^^^^^^^^^^ it is undefined behavior to use this value @@ -10,7 +10,7 @@ LL | const UNALIGNED: &u16 = unsafe { mem::transmute(&[0u8; 4]) }; } error[E0080]: constructing invalid value: encountered an unaligned box (required 2 byte alignment but found 1) - --> $DIR/ub-ref-ptr.rs:20:1 + --> $DIR/ub-ref-ptr.rs:21:1 | LL | const UNALIGNED_BOX: Box<u16> = unsafe { mem::transmute(&[0u8; 4]) }; | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ it is undefined behavior to use this value @@ -21,7 +21,7 @@ LL | const UNALIGNED_BOX: Box<u16> = unsafe { mem::transmute(&[0u8; 4]) }; } error[E0080]: constructing invalid value: encountered a null reference - --> $DIR/ub-ref-ptr.rs:23:1 + --> $DIR/ub-ref-ptr.rs:24:1 | LL | const NULL: &u16 = unsafe { mem::transmute(0usize) }; | ^^^^^^^^^^^^^^^^ it is undefined behavior to use this value @@ -32,7 +32,7 @@ LL | const NULL: &u16 = unsafe { mem::transmute(0usize) }; } error[E0080]: constructing invalid value: encountered a null box - --> $DIR/ub-ref-ptr.rs:26:1 + --> $DIR/ub-ref-ptr.rs:27:1 | LL | const NULL_BOX: Box<u16> = unsafe { mem::transmute(0usize) }; | ^^^^^^^^^^^^^^^^^^^^^^^^ it is undefined behavior to use this value @@ -43,7 +43,7 @@ LL | const NULL_BOX: Box<u16> = unsafe { mem::transmute(0usize) }; } error[E0080]: unable to turn pointer into integer - --> $DIR/ub-ref-ptr.rs:33:1 + --> $DIR/ub-ref-ptr.rs:34:1 | LL | const REF_AS_USIZE: usize = unsafe { mem::transmute(&0) }; | ^^^^^^^^^^^^^^^^^^^^^^^^^ evaluation of `REF_AS_USIZE` failed here @@ -52,7 +52,7 @@ LL | const REF_AS_USIZE: usize = unsafe { mem::transmute(&0) }; = help: the absolute address of a pointer is not known at compile-time, so such operations are not supported error[E0080]: unable to turn pointer into integer - --> $DIR/ub-ref-ptr.rs:36:39 + --> $DIR/ub-ref-ptr.rs:37:39 | LL | const REF_AS_USIZE_SLICE: &[usize] = &[unsafe { mem::transmute(&0) }]; | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ evaluation of `REF_AS_USIZE_SLICE` failed here @@ -61,13 +61,13 @@ LL | const REF_AS_USIZE_SLICE: &[usize] = &[unsafe { mem::transmute(&0) }]; = help: the absolute address of a pointer is not known at compile-time, so such operations are not supported note: erroneous constant encountered - --> $DIR/ub-ref-ptr.rs:36:38 + --> $DIR/ub-ref-ptr.rs:37:38 | LL | const REF_AS_USIZE_SLICE: &[usize] = &[unsafe { mem::transmute(&0) }]; | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ error[E0080]: unable to turn pointer into integer - --> $DIR/ub-ref-ptr.rs:39:86 + --> $DIR/ub-ref-ptr.rs:40:86 | LL | const REF_AS_USIZE_BOX_SLICE: Box<[usize]> = unsafe { mem::transmute::<&[usize], _>(&[mem::transmute(&0)]) }; | ^^^^^^^^^^^^^^^^^^^^ evaluation of `REF_AS_USIZE_BOX_SLICE` failed here @@ -76,13 +76,13 @@ LL | const REF_AS_USIZE_BOX_SLICE: Box<[usize]> = unsafe { mem::transmute::<&[us = help: the absolute address of a pointer is not known at compile-time, so such operations are not supported note: erroneous constant encountered - --> $DIR/ub-ref-ptr.rs:39:85 + --> $DIR/ub-ref-ptr.rs:40:85 | LL | const REF_AS_USIZE_BOX_SLICE: Box<[usize]> = unsafe { mem::transmute::<&[usize], _>(&[mem::transmute(&0)]) }; | ^^^^^^^^^^^^^^^^^^^^^ error[E0080]: constructing invalid value: encountered a dangling reference (0x539[noalloc] has no provenance) - --> $DIR/ub-ref-ptr.rs:42:1 + --> $DIR/ub-ref-ptr.rs:43:1 | LL | const USIZE_AS_REF: &'static u8 = unsafe { mem::transmute(1337usize) }; | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ it is undefined behavior to use this value @@ -93,7 +93,7 @@ LL | const USIZE_AS_REF: &'static u8 = unsafe { mem::transmute(1337usize) }; } error[E0080]: constructing invalid value: encountered a dangling box (0x539[noalloc] has no provenance) - --> $DIR/ub-ref-ptr.rs:45:1 + --> $DIR/ub-ref-ptr.rs:46:1 | LL | const USIZE_AS_BOX: Box<u8> = unsafe { mem::transmute(1337usize) }; | ^^^^^^^^^^^^^^^^^^^^^^^^^^^ it is undefined behavior to use this value @@ -103,14 +103,18 @@ LL | const USIZE_AS_BOX: Box<u8> = unsafe { mem::transmute(1337usize) }; HEX_DUMP } -error[E0080]: reading memory at ALLOC3[0x0..0x8], but memory is uninitialized at [0x0..0x8], and this operation requires initialized memory - --> $DIR/ub-ref-ptr.rs:48:41 +error[E0080]: reading memory at ALLOC3[0x%..0x%], but memory is uninitialized at [0x%..0x%], and this operation requires initialized memory + --> $DIR/ub-ref-ptr.rs:49:41 | LL | const UNINIT_PTR: *const i32 = unsafe { MaybeUninit { uninit: () }.init }; | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ evaluation of `UNINIT_PTR` failed here + | + = note: the raw bytes of the constant (size: $SIZE, align: $ALIGN) { + HEX_DUMP + } error[E0080]: constructing invalid value: encountered null pointer, but expected a function pointer - --> $DIR/ub-ref-ptr.rs:51:1 + --> $DIR/ub-ref-ptr.rs:52:1 | LL | const NULL_FN_PTR: fn() = unsafe { mem::transmute(0usize) }; | ^^^^^^^^^^^^^^^^^^^^^^^ it is undefined behavior to use this value @@ -120,14 +124,18 @@ LL | const NULL_FN_PTR: fn() = unsafe { mem::transmute(0usize) }; HEX_DUMP } -error[E0080]: reading memory at ALLOC4[0x0..0x8], but memory is uninitialized at [0x0..0x8], and this operation requires initialized memory - --> $DIR/ub-ref-ptr.rs:53:38 +error[E0080]: reading memory at ALLOC4[0x%..0x%], but memory is uninitialized at [0x%..0x%], and this operation requires initialized memory + --> $DIR/ub-ref-ptr.rs:54:38 | LL | const UNINIT_FN_PTR: fn() = unsafe { MaybeUninit { uninit: () }.init }; | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ evaluation of `UNINIT_FN_PTR` failed here + | + = note: the raw bytes of the constant (size: $SIZE, align: $ALIGN) { + HEX_DUMP + } error[E0080]: constructing invalid value: encountered 0xd[noalloc], but expected a function pointer - --> $DIR/ub-ref-ptr.rs:55:1 + --> $DIR/ub-ref-ptr.rs:56:1 | LL | const DANGLING_FN_PTR: fn() = unsafe { mem::transmute(13usize) }; | ^^^^^^^^^^^^^^^^^^^^^^^^^^^ it is undefined behavior to use this value @@ -138,7 +146,7 @@ LL | const DANGLING_FN_PTR: fn() = unsafe { mem::transmute(13usize) }; } error[E0080]: constructing invalid value: encountered ALLOC2<imm>, but expected a function pointer - --> $DIR/ub-ref-ptr.rs:57:1 + --> $DIR/ub-ref-ptr.rs:58:1 | LL | const DATA_FN_PTR: fn() = unsafe { mem::transmute(&13) }; | ^^^^^^^^^^^^^^^^^^^^^^^ it is undefined behavior to use this value @@ -149,7 +157,7 @@ LL | const DATA_FN_PTR: fn() = unsafe { mem::transmute(&13) }; } error[E0080]: accessing memory based on pointer with alignment 1, but alignment 4 is required - --> $DIR/ub-ref-ptr.rs:64:5 + --> $DIR/ub-ref-ptr.rs:65:5 | LL | ptr.read(); | ^^^^^^^^^^ evaluation of `UNALIGNED_READ` failed here diff --git a/tests/ui/consts/const-eval/ub-wide-ptr.rs b/tests/ui/consts/const-eval/ub-wide-ptr.rs index 86235897e7e..0bbb104c032 100644 --- a/tests/ui/consts/const-eval/ub-wide-ptr.rs +++ b/tests/ui/consts/const-eval/ub-wide-ptr.rs @@ -6,9 +6,10 @@ use std::{ptr, mem}; // Strip out raw byte dumps to make comparison platform-independent: //@ normalize-stderr: "(the raw bytes of the constant) \(size: [0-9]*, align: [0-9]*\)" -> "$1 (size: $$SIZE, align: $$ALIGN)" -//@ normalize-stderr: "([0-9a-f][0-9a-f] |╾─*ALLOC[0-9]+(\+[a-z0-9]+)?(<imm>)?─*╼ )+ *│.*" -> "HEX_DUMP" +//@ normalize-stderr: "([0-9a-f][0-9a-f] |__ |╾─*ALLOC[0-9]+(\+[a-z0-9]+)?(<imm>)?─*╼ )+ *│.*" -> "HEX_DUMP" //@ normalize-stderr: "offset \d+" -> "offset N" //@ normalize-stderr: "size \d+" -> "size N" +//@ normalize-stderr: "0x[0-9](\.\.|\])" -> "0x%$1" //@ dont-require-annotations: NOTE /// A newtype wrapper to prevent MIR generation from inserting reborrows that would affect the error @@ -61,7 +62,7 @@ const MYSTR_NO_INIT: &MyStr = unsafe { mem::transmute::<&[_], _>(&[MaybeUninit:: const SLICE_VALID: &[u8] = unsafe { mem::transmute((&42u8, 1usize)) }; // bad slice: length uninit const SLICE_LENGTH_UNINIT: &[u8] = unsafe { -//~^ ERROR uninitialized + //~^ ERROR uninitialized let uninit_len = MaybeUninit::<usize> { uninit: () }; mem::transmute((42, uninit_len)) }; @@ -99,7 +100,7 @@ const RAW_SLICE_VALID: *const [u8] = unsafe { mem::transmute((&42u8, 1usize)) }; const RAW_SLICE_TOO_LONG: *const [u8] = unsafe { mem::transmute((&42u8, 999usize)) }; // ok because raw const RAW_SLICE_MUCH_TOO_LONG: *const [u8] = unsafe { mem::transmute((&42u8, usize::MAX)) }; // ok because raw const RAW_SLICE_LENGTH_UNINIT: *const [u8] = unsafe { -//~^ ERROR uninitialized + //~^ ERROR uninitialized let uninit_len = MaybeUninit::<usize> { uninit: () }; mem::transmute((42, uninit_len)) }; diff --git a/tests/ui/consts/const-eval/ub-wide-ptr.stderr b/tests/ui/consts/const-eval/ub-wide-ptr.stderr index a3eb5c72031..ab15ba826a5 100644 --- a/tests/ui/consts/const-eval/ub-wide-ptr.stderr +++ b/tests/ui/consts/const-eval/ub-wide-ptr.stderr @@ -1,5 +1,5 @@ error[E0080]: constructing invalid value: encountered a dangling reference (going beyond the bounds of its allocation) - --> $DIR/ub-wide-ptr.rs:39:1 + --> $DIR/ub-wide-ptr.rs:40:1 | LL | const STR_TOO_LONG: &str = unsafe { mem::transmute((&42u8, 999usize)) }; | ^^^^^^^^^^^^^^^^^^^^^^^^ it is undefined behavior to use this value @@ -10,7 +10,7 @@ LL | const STR_TOO_LONG: &str = unsafe { mem::transmute((&42u8, 999usize)) }; } error[E0080]: constructing invalid value at .0: encountered invalid reference metadata: slice is bigger than largest supported object - --> $DIR/ub-wide-ptr.rs:41:1 + --> $DIR/ub-wide-ptr.rs:42:1 | LL | const NESTED_STR_MUCH_TOO_LONG: (&str,) = (unsafe { mem::transmute((&42, usize::MAX)) },); | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ it is undefined behavior to use this value @@ -21,7 +21,7 @@ LL | const NESTED_STR_MUCH_TOO_LONG: (&str,) = (unsafe { mem::transmute((&42, us } error[E0080]: unable to turn pointer into integer - --> $DIR/ub-wide-ptr.rs:44:1 + --> $DIR/ub-wide-ptr.rs:45:1 | LL | const STR_LENGTH_PTR: &str = unsafe { mem::transmute((&42u8, &3)) }; | ^^^^^^^^^^^^^^^^^^^^^^^^^^ evaluation of `STR_LENGTH_PTR` failed here @@ -30,7 +30,7 @@ LL | const STR_LENGTH_PTR: &str = unsafe { mem::transmute((&42u8, &3)) }; = help: the absolute address of a pointer is not known at compile-time, so such operations are not supported error[E0080]: unable to turn pointer into integer - --> $DIR/ub-wide-ptr.rs:47:1 + --> $DIR/ub-wide-ptr.rs:48:1 | LL | const MY_STR_LENGTH_PTR: &MyStr = unsafe { mem::transmute((&42u8, &3)) }; | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ evaluation of `MY_STR_LENGTH_PTR` failed here @@ -39,7 +39,7 @@ LL | const MY_STR_LENGTH_PTR: &MyStr = unsafe { mem::transmute((&42u8, &3)) }; = help: the absolute address of a pointer is not known at compile-time, so such operations are not supported error[E0080]: constructing invalid value: encountered invalid reference metadata: slice is bigger than largest supported object - --> $DIR/ub-wide-ptr.rs:49:1 + --> $DIR/ub-wide-ptr.rs:50:1 | LL | const MY_STR_MUCH_TOO_LONG: &MyStr = unsafe { mem::transmute((&42u8, usize::MAX)) }; | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ it is undefined behavior to use this value @@ -50,7 +50,7 @@ LL | const MY_STR_MUCH_TOO_LONG: &MyStr = unsafe { mem::transmute((&42u8, usize: } error[E0080]: constructing invalid value at .<deref>: encountered uninitialized memory, but expected a string - --> $DIR/ub-wide-ptr.rs:53:1 + --> $DIR/ub-wide-ptr.rs:54:1 | LL | const STR_NO_INIT: &str = unsafe { mem::transmute::<&[_], _>(&[MaybeUninit::<u8> { uninit: () }]) }; | ^^^^^^^^^^^^^^^^^^^^^^^ it is undefined behavior to use this value @@ -61,7 +61,7 @@ LL | const STR_NO_INIT: &str = unsafe { mem::transmute::<&[_], _>(&[MaybeUninit: } error[E0080]: constructing invalid value at .<deref>.0: encountered uninitialized memory, but expected a string - --> $DIR/ub-wide-ptr.rs:56:1 + --> $DIR/ub-wide-ptr.rs:57:1 | LL | const MYSTR_NO_INIT: &MyStr = unsafe { mem::transmute::<&[_], _>(&[MaybeUninit::<u8> { uninit: () }]) }; | ^^^^^^^^^^^^^^^^^^^^^^^^^^^ it is undefined behavior to use this value @@ -71,14 +71,18 @@ LL | const MYSTR_NO_INIT: &MyStr = unsafe { mem::transmute::<&[_], _>(&[MaybeUni HEX_DUMP } -error[E0080]: reading memory at ALLOC32[0x0..0x8], but memory is uninitialized at [0x4..0x8], and this operation requires initialized memory - --> $DIR/ub-wide-ptr.rs:63:1 +error[E0080]: reading memory at ALLOC32[0x%..0x%], but memory is uninitialized at [0x%..0x%], and this operation requires initialized memory + --> $DIR/ub-wide-ptr.rs:64:1 | LL | const SLICE_LENGTH_UNINIT: &[u8] = unsafe { | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ evaluation of `SLICE_LENGTH_UNINIT` failed here + | + = note: the raw bytes of the constant (size: $SIZE, align: $ALIGN) { + HEX_DUMP + } error[E0080]: constructing invalid value: encountered a dangling reference (going beyond the bounds of its allocation) - --> $DIR/ub-wide-ptr.rs:69:1 + --> $DIR/ub-wide-ptr.rs:70:1 | LL | const SLICE_TOO_LONG: &[u8] = unsafe { mem::transmute((&42u8, 999usize)) }; | ^^^^^^^^^^^^^^^^^^^^^^^^^^^ it is undefined behavior to use this value @@ -89,7 +93,7 @@ LL | const SLICE_TOO_LONG: &[u8] = unsafe { mem::transmute((&42u8, 999usize)) }; } error[E0080]: constructing invalid value: encountered invalid reference metadata: slice is bigger than largest supported object - --> $DIR/ub-wide-ptr.rs:72:1 + --> $DIR/ub-wide-ptr.rs:73:1 | LL | const SLICE_TOO_LONG_OVERFLOW: &[u32] = unsafe { mem::transmute((&42u32, isize::MAX)) }; | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ it is undefined behavior to use this value @@ -100,7 +104,7 @@ LL | const SLICE_TOO_LONG_OVERFLOW: &[u32] = unsafe { mem::transmute((&42u32, is } error[E0080]: unable to turn pointer into integer - --> $DIR/ub-wide-ptr.rs:75:1 + --> $DIR/ub-wide-ptr.rs:76:1 | LL | const SLICE_LENGTH_PTR: &[u8] = unsafe { mem::transmute((&42u8, &3)) }; | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ evaluation of `SLICE_LENGTH_PTR` failed here @@ -109,7 +113,7 @@ LL | const SLICE_LENGTH_PTR: &[u8] = unsafe { mem::transmute((&42u8, &3)) }; = help: the absolute address of a pointer is not known at compile-time, so such operations are not supported error[E0080]: constructing invalid value: encountered a dangling box (going beyond the bounds of its allocation) - --> $DIR/ub-wide-ptr.rs:78:1 + --> $DIR/ub-wide-ptr.rs:79:1 | LL | const SLICE_TOO_LONG_BOX: Box<[u8]> = unsafe { mem::transmute((&42u8, 999usize)) }; | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ it is undefined behavior to use this value @@ -120,7 +124,7 @@ LL | const SLICE_TOO_LONG_BOX: Box<[u8]> = unsafe { mem::transmute((&42u8, 999us } error[E0080]: unable to turn pointer into integer - --> $DIR/ub-wide-ptr.rs:81:1 + --> $DIR/ub-wide-ptr.rs:82:1 | LL | const SLICE_LENGTH_PTR_BOX: Box<[u8]> = unsafe { mem::transmute((&42u8, &3)) }; | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ evaluation of `SLICE_LENGTH_PTR_BOX` failed here @@ -129,7 +133,7 @@ LL | const SLICE_LENGTH_PTR_BOX: Box<[u8]> = unsafe { mem::transmute((&42u8, &3) = help: the absolute address of a pointer is not known at compile-time, so such operations are not supported error[E0080]: constructing invalid value at .<deref>[0]: encountered 0x03, but expected a boolean - --> $DIR/ub-wide-ptr.rs:85:1 + --> $DIR/ub-wide-ptr.rs:86:1 | LL | const SLICE_CONTENT_INVALID: &[bool] = &[unsafe { mem::transmute(3u8) }]; | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ it is undefined behavior to use this value @@ -140,13 +144,13 @@ LL | const SLICE_CONTENT_INVALID: &[bool] = &[unsafe { mem::transmute(3u8) }]; } note: erroneous constant encountered - --> $DIR/ub-wide-ptr.rs:85:40 + --> $DIR/ub-wide-ptr.rs:86:40 | LL | const SLICE_CONTENT_INVALID: &[bool] = &[unsafe { mem::transmute(3u8) }]; | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ error[E0080]: constructing invalid value at .<deref>.0: encountered 0x03, but expected a boolean - --> $DIR/ub-wide-ptr.rs:91:1 + --> $DIR/ub-wide-ptr.rs:92:1 | LL | const MYSLICE_PREFIX_BAD: &MySliceBool = &MySlice(unsafe { mem::transmute(3u8) }, [false]); | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ it is undefined behavior to use this value @@ -157,13 +161,13 @@ LL | const MYSLICE_PREFIX_BAD: &MySliceBool = &MySlice(unsafe { mem::transmute(3 } note: erroneous constant encountered - --> $DIR/ub-wide-ptr.rs:91:42 + --> $DIR/ub-wide-ptr.rs:92:42 | LL | const MYSLICE_PREFIX_BAD: &MySliceBool = &MySlice(unsafe { mem::transmute(3u8) }, [false]); | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ error[E0080]: constructing invalid value at .<deref>.1[0]: encountered 0x03, but expected a boolean - --> $DIR/ub-wide-ptr.rs:94:1 + --> $DIR/ub-wide-ptr.rs:95:1 | LL | const MYSLICE_SUFFIX_BAD: &MySliceBool = &MySlice(true, [unsafe { mem::transmute(3u8) }]); | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ it is undefined behavior to use this value @@ -174,19 +178,23 @@ LL | const MYSLICE_SUFFIX_BAD: &MySliceBool = &MySlice(true, [unsafe { mem::tran } note: erroneous constant encountered - --> $DIR/ub-wide-ptr.rs:94:42 + --> $DIR/ub-wide-ptr.rs:95:42 | LL | const MYSLICE_SUFFIX_BAD: &MySliceBool = &MySlice(true, [unsafe { mem::transmute(3u8) }]); | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ -error[E0080]: reading memory at ALLOC33[0x0..0x8], but memory is uninitialized at [0x4..0x8], and this operation requires initialized memory - --> $DIR/ub-wide-ptr.rs:101:1 +error[E0080]: reading memory at ALLOC33[0x%..0x%], but memory is uninitialized at [0x%..0x%], and this operation requires initialized memory + --> $DIR/ub-wide-ptr.rs:102:1 | LL | const RAW_SLICE_LENGTH_UNINIT: *const [u8] = unsafe { | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ evaluation of `RAW_SLICE_LENGTH_UNINIT` failed here + | + = note: the raw bytes of the constant (size: $SIZE, align: $ALIGN) { + HEX_DUMP + } error[E0080]: constructing invalid value at .0: encountered ALLOC12<imm>, but expected a vtable pointer - --> $DIR/ub-wide-ptr.rs:109:1 + --> $DIR/ub-wide-ptr.rs:110:1 | LL | const TRAIT_OBJ_SHORT_VTABLE_1: W<&dyn Trait> = unsafe { mem::transmute(W((&92u8, &3u8))) }; | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ it is undefined behavior to use this value @@ -197,7 +205,7 @@ LL | const TRAIT_OBJ_SHORT_VTABLE_1: W<&dyn Trait> = unsafe { mem::transmute(W(( } error[E0080]: constructing invalid value at .0: encountered ALLOC14<imm>, but expected a vtable pointer - --> $DIR/ub-wide-ptr.rs:112:1 + --> $DIR/ub-wide-ptr.rs:113:1 | LL | const TRAIT_OBJ_SHORT_VTABLE_2: W<&dyn Trait> = unsafe { mem::transmute(W((&92u8, &3u64))) }; | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ it is undefined behavior to use this value @@ -208,7 +216,7 @@ LL | const TRAIT_OBJ_SHORT_VTABLE_2: W<&dyn Trait> = unsafe { mem::transmute(W(( } error[E0080]: constructing invalid value at .0: encountered 0x4[noalloc], but expected a vtable pointer - --> $DIR/ub-wide-ptr.rs:115:1 + --> $DIR/ub-wide-ptr.rs:116:1 | LL | const TRAIT_OBJ_INT_VTABLE: W<&dyn Trait> = unsafe { mem::transmute(W((&92u8, 4usize))) }; | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ it is undefined behavior to use this value @@ -219,7 +227,7 @@ LL | const TRAIT_OBJ_INT_VTABLE: W<&dyn Trait> = unsafe { mem::transmute(W((&92u } error[E0080]: constructing invalid value: encountered ALLOC17<imm>, but expected a vtable pointer - --> $DIR/ub-wide-ptr.rs:117:1 + --> $DIR/ub-wide-ptr.rs:118:1 | LL | const TRAIT_OBJ_UNALIGNED_VTABLE: &dyn Trait = unsafe { mem::transmute((&92u8, &[0u8; 128])) }; | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ it is undefined behavior to use this value @@ -230,7 +238,7 @@ LL | const TRAIT_OBJ_UNALIGNED_VTABLE: &dyn Trait = unsafe { mem::transmute((&92 } error[E0080]: constructing invalid value: encountered ALLOC19<imm>, but expected a vtable pointer - --> $DIR/ub-wide-ptr.rs:119:1 + --> $DIR/ub-wide-ptr.rs:120:1 | LL | const TRAIT_OBJ_BAD_DROP_FN_NULL: &dyn Trait = unsafe { mem::transmute((&92u8, &[0usize; 8])) }; | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ it is undefined behavior to use this value @@ -241,7 +249,7 @@ LL | const TRAIT_OBJ_BAD_DROP_FN_NULL: &dyn Trait = unsafe { mem::transmute((&92 } error[E0080]: constructing invalid value: encountered ALLOC21<imm>, but expected a vtable pointer - --> $DIR/ub-wide-ptr.rs:121:1 + --> $DIR/ub-wide-ptr.rs:122:1 | LL | const TRAIT_OBJ_BAD_DROP_FN_INT: &dyn Trait = unsafe { mem::transmute((&92u8, &[1usize; 8])) }; | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ it is undefined behavior to use this value @@ -252,7 +260,7 @@ LL | const TRAIT_OBJ_BAD_DROP_FN_INT: &dyn Trait = unsafe { mem::transmute((&92u } error[E0080]: constructing invalid value at .0: encountered ALLOC23<imm>, but expected a vtable pointer - --> $DIR/ub-wide-ptr.rs:123:1 + --> $DIR/ub-wide-ptr.rs:124:1 | LL | const TRAIT_OBJ_BAD_DROP_FN_NOT_FN_PTR: W<&dyn Trait> = unsafe { mem::transmute(W((&92u8, &[&42u8; 8]))) }; | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ it is undefined behavior to use this value @@ -263,7 +271,7 @@ LL | const TRAIT_OBJ_BAD_DROP_FN_NOT_FN_PTR: W<&dyn Trait> = unsafe { mem::trans } error[E0080]: constructing invalid value at .<deref>.<dyn-downcast>: encountered 0x03, but expected a boolean - --> $DIR/ub-wide-ptr.rs:127:1 + --> $DIR/ub-wide-ptr.rs:128:1 | LL | const TRAIT_OBJ_CONTENT_INVALID: &dyn Trait = unsafe { mem::transmute::<_, &bool>(&3u8) }; | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ it is undefined behavior to use this value @@ -274,7 +282,7 @@ LL | const TRAIT_OBJ_CONTENT_INVALID: &dyn Trait = unsafe { mem::transmute::<_, } error[E0080]: constructing invalid value: encountered null pointer, but expected a vtable pointer - --> $DIR/ub-wide-ptr.rs:131:1 + --> $DIR/ub-wide-ptr.rs:132:1 | LL | const RAW_TRAIT_OBJ_VTABLE_NULL: *const dyn Trait = unsafe { mem::transmute((&92u8, 0usize)) }; | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ it is undefined behavior to use this value @@ -285,7 +293,7 @@ LL | const RAW_TRAIT_OBJ_VTABLE_NULL: *const dyn Trait = unsafe { mem::transmute } error[E0080]: constructing invalid value: encountered ALLOC28<imm>, but expected a vtable pointer - --> $DIR/ub-wide-ptr.rs:133:1 + --> $DIR/ub-wide-ptr.rs:134:1 | LL | const RAW_TRAIT_OBJ_VTABLE_INVALID: *const dyn Trait = unsafe { mem::transmute((&92u8, &3u64)) }; | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ it is undefined behavior to use this value @@ -296,7 +304,7 @@ LL | const RAW_TRAIT_OBJ_VTABLE_INVALID: *const dyn Trait = unsafe { mem::transm } error[E0080]: constructing invalid value: encountered null pointer, but expected a vtable pointer - --> $DIR/ub-wide-ptr.rs:140:1 + --> $DIR/ub-wide-ptr.rs:141:1 | LL | static mut RAW_TRAIT_OBJ_VTABLE_NULL_THROUGH_REF: *const dyn Trait = unsafe { | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ it is undefined behavior to use this value @@ -307,7 +315,7 @@ LL | static mut RAW_TRAIT_OBJ_VTABLE_NULL_THROUGH_REF: *const dyn Trait = unsafe } error[E0080]: constructing invalid value: encountered ALLOC31<imm>, but expected a vtable pointer - --> $DIR/ub-wide-ptr.rs:144:1 + --> $DIR/ub-wide-ptr.rs:145:1 | LL | static mut RAW_TRAIT_OBJ_VTABLE_INVALID_THROUGH_REF: *const dyn Trait = unsafe { | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ it is undefined behavior to use this value diff --git a/tests/ui/consts/const-eval/union-const-eval-field.rs b/tests/ui/consts/const-eval/union-const-eval-field.rs index 0ad94eee7f4..719e59b007c 100644 --- a/tests/ui/consts/const-eval/union-const-eval-field.rs +++ b/tests/ui/consts/const-eval/union-const-eval-field.rs @@ -1,4 +1,5 @@ //@ dont-require-annotations: NOTE +//@ normalize-stderr: "(the raw bytes of the constant) \(size: [0-9]*, align: [0-9]*\)" -> "$1 (size: $$SIZE, align: $$ALIGN)" type Field1 = i32; type Field2 = f32; diff --git a/tests/ui/consts/const-eval/union-const-eval-field.stderr b/tests/ui/consts/const-eval/union-const-eval-field.stderr index deddf9e0b6d..1843ce273ac 100644 --- a/tests/ui/consts/const-eval/union-const-eval-field.stderr +++ b/tests/ui/consts/const-eval/union-const-eval-field.stderr @@ -1,17 +1,21 @@ error[E0080]: reading memory at ALLOC0[0x0..0x8], but memory is uninitialized at [0x4..0x8], and this operation requires initialized memory - --> $DIR/union-const-eval-field.rs:28:37 + --> $DIR/union-const-eval-field.rs:29:37 | LL | const FIELD3: Field3 = unsafe { UNION.field3 }; | ^^^^^^^^^^^^ evaluation of `read_field3::FIELD3` failed here + | + = note: the raw bytes of the constant (size: $SIZE, align: $ALIGN) { + 00 00 80 3f __ __ __ __ │ ...?░░░░ + } note: erroneous constant encountered - --> $DIR/union-const-eval-field.rs:30:5 + --> $DIR/union-const-eval-field.rs:31:5 | LL | FIELD3 | ^^^^^^ note: erroneous constant encountered - --> $DIR/union-const-eval-field.rs:30:5 + --> $DIR/union-const-eval-field.rs:31:5 | LL | FIELD3 | ^^^^^^ diff --git a/tests/ui/consts/const-eval/union-ice.stderr b/tests/ui/consts/const-eval/union-ice.stderr index 826d7440a80..0506be63ea6 100644 --- a/tests/ui/consts/const-eval/union-ice.stderr +++ b/tests/ui/consts/const-eval/union-ice.stderr @@ -3,18 +3,30 @@ error[E0080]: reading memory at ALLOC0[0x0..0x8], but memory is uninitialized at | LL | const FIELD3: Field3 = unsafe { UNION.field3 }; | ^^^^^^^^^^^^ evaluation of `FIELD3` failed here + | + = note: the raw bytes of the constant (size: 8, align: 8) { + 00 00 80 3f __ __ __ __ │ ...?░░░░ + } error[E0080]: reading memory at ALLOC1[0x0..0x8], but memory is uninitialized at [0x4..0x8], and this operation requires initialized memory --> $DIR/union-ice.rs:19:17 | LL | b: unsafe { UNION.field3 }, | ^^^^^^^^^^^^ evaluation of `FIELD_PATH` failed here + | + = note: the raw bytes of the constant (size: 8, align: 8) { + 00 00 80 3f __ __ __ __ │ ...?░░░░ + } error[E0080]: reading memory at ALLOC2[0x0..0x8], but memory is uninitialized at [0x4..0x8], and this operation requires initialized memory --> $DIR/union-ice.rs:31:18 | LL | unsafe { UNION.field3 }, | ^^^^^^^^^^^^ evaluation of `FIELD_PATH2` failed here + | + = note: the raw bytes of the constant (size: 8, align: 8) { + 00 00 80 3f __ __ __ __ │ ...?░░░░ + } error: aborting due to 3 previous errors diff --git a/tests/ui/consts/const-eval/union-ub.32bit.stderr b/tests/ui/consts/const-eval/union-ub.32bit.stderr index 70bf2cf5390..757bcea91c3 100644 --- a/tests/ui/consts/const-eval/union-ub.32bit.stderr +++ b/tests/ui/consts/const-eval/union-ub.32bit.stderr @@ -14,6 +14,10 @@ error[E0080]: reading memory at ALLOC0[0x0..0x1], but memory is uninitialized at | LL | const UNINIT_BOOL: bool = unsafe { DummyUnion { unit: () }.bool }; | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^ evaluation of `UNINIT_BOOL` failed here + | + = note: the raw bytes of the constant (size: 1, align: 1) { + __ │ ░ + } error: aborting due to 2 previous errors diff --git a/tests/ui/consts/const-eval/union-ub.64bit.stderr b/tests/ui/consts/const-eval/union-ub.64bit.stderr index 70bf2cf5390..757bcea91c3 100644 --- a/tests/ui/consts/const-eval/union-ub.64bit.stderr +++ b/tests/ui/consts/const-eval/union-ub.64bit.stderr @@ -14,6 +14,10 @@ error[E0080]: reading memory at ALLOC0[0x0..0x1], but memory is uninitialized at | LL | const UNINIT_BOOL: bool = unsafe { DummyUnion { unit: () }.bool }; | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^ evaluation of `UNINIT_BOOL` failed here + | + = note: the raw bytes of the constant (size: 1, align: 1) { + __ │ ░ + } error: aborting due to 2 previous errors diff --git a/tests/ui/intrinsics/intrinsic-raw_eq-const-bad.stderr b/tests/ui/intrinsics/intrinsic-raw_eq-const-bad.stderr index 10f4d8d1a71..5f4ef14d586 100644 --- a/tests/ui/intrinsics/intrinsic-raw_eq-const-bad.stderr +++ b/tests/ui/intrinsics/intrinsic-raw_eq-const-bad.stderr @@ -3,6 +3,10 @@ error[E0080]: reading memory at ALLOC0[0x0..0x4], but memory is uninitialized at | LL | std::intrinsics::raw_eq(&(1_u8, 2_u16), &(1_u8, 2_u16)) | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ evaluation of `RAW_EQ_PADDING` failed here + | + = note: the raw bytes of the constant (size: 4, align: 2) { + 01 __ 02 00 │ .░.. + } error[E0080]: unable to turn pointer into integer --> $DIR/intrinsic-raw_eq-const-bad.rs:9:5 diff --git a/tests/ui/type/pattern_types/validity.stderr b/tests/ui/type/pattern_types/validity.stderr index 76824055d8a..b545cd75ddb 100644 --- a/tests/ui/type/pattern_types/validity.stderr +++ b/tests/ui/type/pattern_types/validity.stderr @@ -14,6 +14,10 @@ error[E0080]: reading memory at ALLOC0[0x0..0x4], but memory is uninitialized at | LL | const BAD_UNINIT: pattern_type!(u32 is 1..) = | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ evaluation of `BAD_UNINIT` failed here + | + = note: the raw bytes of the constant (size: 4, align: 4) { + __ __ __ __ │ ░░░░ + } error[E0080]: unable to turn pointer into integer --> $DIR/validity.rs:17:1 @@ -51,6 +55,10 @@ error[E0080]: reading memory at ALLOC1[0x0..0x4], but memory is uninitialized at | LL | const CHAR_UNINIT: pattern_type!(char is 'A'..'Z') = | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ evaluation of `CHAR_UNINIT` failed here + | + = note: the raw bytes of the constant (size: 4, align: 4) { + __ __ __ __ │ ░░░░ + } error[E0080]: constructing invalid value: encountered 97, but expected something in the range 65..=89 --> $DIR/validity.rs:33:1 |