diff options
Diffstat (limited to 'tests/codegen')
4 files changed, 117 insertions, 1 deletions
diff --git a/tests/codegen/debuginfo-inline-callsite-location.rs b/tests/codegen/debuginfo-inline-callsite-location.rs new file mode 100644 index 00000000000..b1475ee7931 --- /dev/null +++ b/tests/codegen/debuginfo-inline-callsite-location.rs @@ -0,0 +1,28 @@ +// compile-flags: -g -O + +// Check that each inline call site for the same function uses the same "sub-program" so that LLVM +// can correctly merge the debug info if it merges the inlined code (e.g., for merging of tail +// calls to panic. + +// CHECK: tail call void @_ZN4core9panicking5panic17h{{([0-9a-z]{16})}}E +// CHECK-SAME: !dbg ![[#first_dbg:]] +// CHECK: tail call void @_ZN4core9panicking5panic17h{{([0-9a-z]{16})}}E +// CHECK-SAME: !dbg ![[#second_dbg:]] + +// CHECK-DAG: ![[#func_dbg:]] = distinct !DISubprogram(name: "unwrap<i32>" +// CHECK-DAG: ![[#first_scope:]] = distinct !DILexicalBlock(scope: ![[#func_dbg]], +// CHECK: ![[#second_scope:]] = distinct !DILexicalBlock(scope: ![[#func_dbg]], +// CHECK: ![[#first_dbg]] = !DILocation(line: [[#]] +// CHECK-SAME: scope: ![[#first_scope]], inlinedAt: ![[#]]) +// CHECK: ![[#second_dbg]] = !DILocation(line: [[#]] +// CHECK-SAME: scope: ![[#second_scope]], inlinedAt: ![[#]]) + +#![crate_type = "lib"] + +#[no_mangle] +extern "C" fn add_numbers(x: &Option<i32>, y: &Option<i32>) -> i32 { + let x1 = x.unwrap(); + let y1 = y.unwrap(); + + x1 + y1 +} diff --git a/tests/codegen/issues/issue-115385-llvm-jump-threading.rs b/tests/codegen/issues/issue-115385-llvm-jump-threading.rs new file mode 100644 index 00000000000..142e3596d96 --- /dev/null +++ b/tests/codegen/issues/issue-115385-llvm-jump-threading.rs @@ -0,0 +1,46 @@ +// compile-flags: -O -Ccodegen-units=1 + +#![crate_type = "lib"] + +#[repr(i64)] +pub enum Boolean { + False = 0, + True = 1, +} + +impl Clone for Boolean { + fn clone(&self) -> Self { + *self + } +} + +impl Copy for Boolean {} + +extern "C" { + fn set_value(foo: *mut i64); + fn bar(); +} + +pub fn foo(x: bool) { + let mut foo = core::mem::MaybeUninit::<i64>::uninit(); + unsafe { + set_value(foo.as_mut_ptr()); + } + + if x { + let l1 = unsafe { *foo.as_mut_ptr().cast::<Boolean>() }; + if matches!(l1, Boolean::False) { + unsafe { + *foo.as_mut_ptr() = 0; + } + } + } + + let l2 = unsafe { *foo.as_mut_ptr() }; + if l2 == 2 { + // CHECK: call void @bar + unsafe { + bar(); + } + } +} diff --git a/tests/codegen/repr/transparent.rs b/tests/codegen/repr/transparent.rs index b140fc719da..c5974248bb3 100644 --- a/tests/codegen/repr/transparent.rs +++ b/tests/codegen/repr/transparent.rs @@ -43,7 +43,6 @@ pub extern "C" fn test_WithZst(_: WithZst) -> WithZst { loop {} } #[repr(transparent)] pub struct WithZeroSizedArray(*const f32, [i8; 0]); -// Apparently we use i32* when newtype-unwrapping f32 pointers. Whatever. // CHECK: define{{.*}}ptr @test_WithZeroSizedArray(ptr noundef %_1) #[no_mangle] pub extern "C" fn test_WithZeroSizedArray(_: WithZeroSizedArray) -> WithZeroSizedArray { loop {} } diff --git a/tests/codegen/sanitizer/address-sanitizer-globals-tracking.rs b/tests/codegen/sanitizer/address-sanitizer-globals-tracking.rs new file mode 100644 index 00000000000..a70ef7751b6 --- /dev/null +++ b/tests/codegen/sanitizer/address-sanitizer-globals-tracking.rs @@ -0,0 +1,43 @@ +// Verifies that AddressSanitizer symbols show up as expected in LLVM IR with `-Zsanitizer`. +// This is a regression test for https://github.com/rust-lang/rust/issues/113404 +// +// Notes about the `compile-flags` below: +// +// * The original issue only reproed with LTO - this is why this angle has +// extra test coverage via different `revisions` +// * To observe the failure/repro at LLVM-IR level we need to use `staticlib` +// which necessitates `-C prefer-dynamic=false` - without the latter flag, +// we would have run into "cannot prefer dynamic linking when performing LTO". +// +// The test is restricted to `only-linux`, because the sanitizer-related instrumentation is target +// specific. In particular, `___asan_globals_registered` is only used in the +// `InstrumentGlobalsELF` and `InstrumentGlobalsMachO` code paths. The `only-linux` filter is +// narrower than really needed (i.e. narrower than ELF-or-MachO), but this seems ok - having a +// linux-only regression test should be sufficient here. +// +// needs-sanitizer-address +// only-linux +// +// revisions:ASAN ASAN-FAT-LTO +//[ASAN] compile-flags: -Zsanitizer=address +//[ASAN-FAT-LTO] compile-flags: -Zsanitizer=address -Cprefer-dynamic=false -Clto=fat + +#![crate_type="staticlib"] + +// The test below mimics `CACHED_POW10` from `library/core/src/num/flt2dec/strategy/grisu.rs` which +// (because of incorrect handling of `___asan_globals_registered` during LTO) was incorrectly +// reported as an ODR violation in https://crbug.com/1459233#c1. Before this bug was fixed, +// `___asan_globals_registered` would show up as `internal global i64` rather than `common hidden +// global i64`. (The test expectations ignore the exact type because on `arm-android` the type +// is `i32` rather than `i64`.) +// +// CHECK: @___asan_globals_registered = common hidden global +// CHECK: @__start_asan_globals = extern_weak hidden global +// CHECK: @__stop_asan_globals = extern_weak hidden global +#[no_mangle] +pub static CACHED_POW10: [(u64, i16, i16); 4] = [ + (0xe61acf033d1a45df, -1087, -308), + (0xab70fe17c79ac6ca, -1060, -300), + (0xff77b1fcbebcdc4f, -1034, -292), + (0xbe5691ef416bd60c, -1007, -284), +]; |