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| author | Amanieu d'Antras <amanieu@gmail.com> | 2022-04-06 20:41:12 +0100 |
|---|---|---|
| committer | Amanieu d'Antras <amanieu@gmail.com> | 2022-04-19 17:14:23 +0200 |
| commit | b2bc46938c123214d36c1463e23810c13e0293b4 (patch) | |
| tree | 592d423b4690cc466fd9d60dd1b52216635574fb /compiler/rustc_codegen_gcc/src | |
| parent | 634770c0a7f8598164ab825cfe419cc8b03c36e5 (diff) | |
| download | rust-b2bc46938c123214d36c1463e23810c13e0293b4.tar.gz rust-b2bc46938c123214d36c1463e23810c13e0293b4.zip | |
asm: Add a kreg0 register class on x86 which includes k0
Previously we only exposed a kreg register class which excludes the k0 register since it can't be used in many instructions. However k0 is a valid register and we need to have a way of marking it as clobbered for clobber_abi. Fixes #94977
Diffstat (limited to 'compiler/rustc_codegen_gcc/src')
| -rw-r--r-- | compiler/rustc_codegen_gcc/src/asm.rs | 3 |
1 files changed, 3 insertions, 0 deletions
diff --git a/compiler/rustc_codegen_gcc/src/asm.rs b/compiler/rustc_codegen_gcc/src/asm.rs index 8a74c4c07e0..b5aa7c1e65b 100644 --- a/compiler/rustc_codegen_gcc/src/asm.rs +++ b/compiler/rustc_codegen_gcc/src/asm.rs @@ -581,6 +581,7 @@ fn reg_to_gcc(reg: InlineAsmRegOrRegClass) -> ConstraintOrRegister { | InlineAsmRegClass::X86(X86InlineAsmRegClass::ymm_reg) => "x", InlineAsmRegClass::X86(X86InlineAsmRegClass::zmm_reg) => "v", InlineAsmRegClass::X86(X86InlineAsmRegClass::kreg) => unimplemented!(), + InlineAsmRegClass::X86(X86InlineAsmRegClass::kreg0) => unimplemented!(), InlineAsmRegClass::Wasm(WasmInlineAsmRegClass::local) => unimplemented!(), InlineAsmRegClass::X86( X86InlineAsmRegClass::x87_reg | X86InlineAsmRegClass::mmx_reg, @@ -646,6 +647,7 @@ fn dummy_output_type<'gcc, 'tcx>(cx: &CodegenCx<'gcc, 'tcx>, reg: InlineAsmRegCl | InlineAsmRegClass::X86(X86InlineAsmRegClass::zmm_reg) => cx.type_f32(), InlineAsmRegClass::X86(X86InlineAsmRegClass::x87_reg) => unimplemented!(), InlineAsmRegClass::X86(X86InlineAsmRegClass::kreg) => cx.type_i16(), + InlineAsmRegClass::X86(X86InlineAsmRegClass::kreg0) => cx.type_i16(), InlineAsmRegClass::Wasm(WasmInlineAsmRegClass::local) => cx.type_i32(), InlineAsmRegClass::SpirV(SpirVInlineAsmRegClass::reg) => { bug!("LLVM backend does not support SPIR-V") @@ -760,6 +762,7 @@ fn modifier_to_gcc(arch: InlineAsmArch, reg: InlineAsmRegClass, modifier: Option _ => unreachable!(), }, InlineAsmRegClass::X86(X86InlineAsmRegClass::kreg) => None, + InlineAsmRegClass::X86(X86InlineAsmRegClass::kreg0) => None, InlineAsmRegClass::X86(X86InlineAsmRegClass::x87_reg | X86InlineAsmRegClass::mmx_reg) => { unreachable!("clobber-only") } |