diff options
10 files changed, 12 insertions, 29 deletions
diff --git a/library/compiler-builtins/builtins-shim/Cargo.toml b/library/compiler-builtins/builtins-shim/Cargo.toml index 8eb880c6fd1..707ebdbc77b 100644 --- a/library/compiler-builtins/builtins-shim/Cargo.toml +++ b/library/compiler-builtins/builtins-shim/Cargo.toml @@ -37,8 +37,9 @@ default = ["compiler-builtins"] # implementations and also filling in unimplemented intrinsics c = ["dep:cc"] -# Workaround for the Cranelift codegen backend. Disables any implementations -# which use inline assembly and fall back to pure Rust versions (if available). +# For implementations where there is both a generic version and a platform- +# specific version, use the generic version. This is meant to enable testing +# the generic versions on all platforms. no-asm = [] # Workaround for codegen backends which haven't yet implemented `f16` and diff --git a/library/compiler-builtins/builtins-test/tests/lse.rs b/library/compiler-builtins/builtins-test/tests/lse.rs index 0d85228d7a2..5d59fbb7f44 100644 --- a/library/compiler-builtins/builtins-test/tests/lse.rs +++ b/library/compiler-builtins/builtins-test/tests/lse.rs @@ -1,6 +1,6 @@ #![feature(decl_macro)] // so we can use pub(super) #![feature(macro_metavar_expr_concat)] -#![cfg(all(target_arch = "aarch64", target_os = "linux", not(feature = "no-asm")))] +#![cfg(all(target_arch = "aarch64", target_os = "linux"))] /// Translate a byte size to a Rust type. macro int_ty { diff --git a/library/compiler-builtins/compiler-builtins/Cargo.toml b/library/compiler-builtins/compiler-builtins/Cargo.toml index 3ccb05f73fb..8bbe136ce33 100644 --- a/library/compiler-builtins/compiler-builtins/Cargo.toml +++ b/library/compiler-builtins/compiler-builtins/Cargo.toml @@ -35,8 +35,9 @@ default = ["compiler-builtins"] # implementations and also filling in unimplemented intrinsics c = ["dep:cc"] -# Workaround for the Cranelift codegen backend. Disables any implementations -# which use inline assembly and fall back to pure Rust versions (if available). +# For implementations where there is both a generic version and a platform- +# specific version, use the generic version. This is meant to enable testing +# the generic versions on all platforms. no-asm = [] # Workaround for codegen backends which haven't yet implemented `f16` and diff --git a/library/compiler-builtins/compiler-builtins/src/aarch64.rs b/library/compiler-builtins/compiler-builtins/src/aarch64.rs index a72b30d29f0..039fab2061c 100644 --- a/library/compiler-builtins/compiler-builtins/src/aarch64.rs +++ b/library/compiler-builtins/compiler-builtins/src/aarch64.rs @@ -4,7 +4,7 @@ use core::intrinsics; intrinsics! { #[unsafe(naked)] - #[cfg(all(target_os = "uefi", not(feature = "no-asm")))] + #[cfg(target_os = "uefi")] pub unsafe extern "custom" fn __chkstk() { core::arch::naked_asm!( ".p2align 2", diff --git a/library/compiler-builtins/compiler-builtins/src/arm.rs b/library/compiler-builtins/compiler-builtins/src/arm.rs index fbec93ca431..0c15b37df1d 100644 --- a/library/compiler-builtins/compiler-builtins/src/arm.rs +++ b/library/compiler-builtins/compiler-builtins/src/arm.rs @@ -1,5 +1,3 @@ -#![cfg(not(feature = "no-asm"))] - // Interfaces used by naked trampolines. // SAFETY: these are defined in compiler-builtins unsafe extern "C" { diff --git a/library/compiler-builtins/compiler-builtins/src/hexagon.rs b/library/compiler-builtins/compiler-builtins/src/hexagon.rs index 91cf91c3142..a5c7b4dfdda 100644 --- a/library/compiler-builtins/compiler-builtins/src/hexagon.rs +++ b/library/compiler-builtins/compiler-builtins/src/hexagon.rs @@ -1,5 +1,3 @@ -#![cfg(not(feature = "no-asm"))] - use core::arch::global_asm; global_asm!(include_str!("hexagon/func_macro.s"), options(raw)); diff --git a/library/compiler-builtins/compiler-builtins/src/lib.rs b/library/compiler-builtins/compiler-builtins/src/lib.rs index fe0ad81dd3a..ca75f44e02a 100644 --- a/library/compiler-builtins/compiler-builtins/src/lib.rs +++ b/library/compiler-builtins/compiler-builtins/src/lib.rs @@ -60,7 +60,7 @@ pub mod arm; #[cfg(any(target_arch = "aarch64", target_arch = "arm64ec"))] pub mod aarch64; -#[cfg(all(target_arch = "aarch64", target_os = "linux", not(feature = "no-asm"),))] +#[cfg(all(target_arch = "aarch64", target_os = "linux"))] pub mod aarch64_linux; #[cfg(all( diff --git a/library/compiler-builtins/compiler-builtins/src/probestack.rs b/library/compiler-builtins/compiler-builtins/src/probestack.rs index f4105dde57e..9a18216da99 100644 --- a/library/compiler-builtins/compiler-builtins/src/probestack.rs +++ b/library/compiler-builtins/compiler-builtins/src/probestack.rs @@ -44,8 +44,6 @@ #![cfg(not(feature = "mangled-names"))] // Windows and Cygwin already has builtins to do this. #![cfg(not(any(windows, target_os = "cygwin")))] -// All these builtins require assembly -#![cfg(not(feature = "no-asm"))] // We only define stack probing for these architectures today. #![cfg(any(target_arch = "x86_64", target_arch = "x86"))] diff --git a/library/compiler-builtins/compiler-builtins/src/x86.rs b/library/compiler-builtins/compiler-builtins/src/x86.rs index 16e50922a94..51940b3b338 100644 --- a/library/compiler-builtins/compiler-builtins/src/x86.rs +++ b/library/compiler-builtins/compiler-builtins/src/x86.rs @@ -9,10 +9,7 @@ use core::intrinsics; intrinsics! { #[unsafe(naked)] - #[cfg(all( - any(all(windows, target_env = "gnu"), target_os = "uefi"), - not(feature = "no-asm") - ))] + #[cfg(any(all(windows, target_env = "gnu"), target_os = "uefi"))] pub unsafe extern "custom" fn __chkstk() { core::arch::naked_asm!( "jmp {}", // Jump to __alloca since fallthrough may be unreliable" @@ -21,10 +18,7 @@ intrinsics! { } #[unsafe(naked)] - #[cfg(all( - any(all(windows, target_env = "gnu"), target_os = "uefi"), - not(feature = "no-asm") - ))] + #[cfg(any(all(windows, target_env = "gnu"), target_os = "uefi"))] pub unsafe extern "custom" fn _alloca() { // __chkstk and _alloca are the same function core::arch::naked_asm!( diff --git a/library/compiler-builtins/compiler-builtins/src/x86_64.rs b/library/compiler-builtins/compiler-builtins/src/x86_64.rs index 9b7133b482e..f9ae784d575 100644 --- a/library/compiler-builtins/compiler-builtins/src/x86_64.rs +++ b/library/compiler-builtins/compiler-builtins/src/x86_64.rs @@ -9,14 +9,7 @@ use core::intrinsics; intrinsics! { #[unsafe(naked)] - #[cfg(all( - any( - all(windows, target_env = "gnu"), - target_os = "cygwin", - target_os = "uefi" - ), - not(feature = "no-asm") - ))] + #[cfg(any(all(windows, target_env = "gnu"), target_os = "cygwin", target_os = "uefi"))] pub unsafe extern "custom" fn ___chkstk_ms() { core::arch::naked_asm!( "push %rcx", |