diff options
| author | Amanieu d'Antras <amanieu@gmail.com> | 2020-04-29 00:45:58 +0100 |
|---|---|---|
| committer | Amanieu d'Antras <amanieu@gmail.com> | 2020-05-18 14:41:32 +0100 |
| commit | 7dfa486d4a18b7a6e514e589771f52c43eff4f3b (patch) | |
| tree | 6e9ac7f1c742cc946353074a940341798f47e681 /src/librustc_codegen_llvm/asm.rs | |
| parent | 93e2946d0c0cccd69ee03390adca7ec4f71a2113 (diff) | |
Add support for high byte registers on x86
Diffstat (limited to 'src/librustc_codegen_llvm/asm.rs')
| -rw-r--r-- | src/librustc_codegen_llvm/asm.rs | 3 |
1 files changed, 3 insertions, 0 deletions
diff --git a/src/librustc_codegen_llvm/asm.rs b/src/librustc_codegen_llvm/asm.rs index 21322511c99..20abfbcf405 100644 --- a/src/librustc_codegen_llvm/asm.rs +++ b/src/librustc_codegen_llvm/asm.rs @@ -409,6 +409,7 @@ fn reg_to_llvm(reg: InlineAsmRegOrRegClass) -> String { InlineAsmRegClass::RiscV(RiscVInlineAsmRegClass::freg) => "f", InlineAsmRegClass::X86(X86InlineAsmRegClass::reg) => "r", InlineAsmRegClass::X86(X86InlineAsmRegClass::reg_abcd) => "Q", + InlineAsmRegClass::X86(X86InlineAsmRegClass::reg_byte) => "r", InlineAsmRegClass::X86(X86InlineAsmRegClass::xmm_reg) | InlineAsmRegClass::X86(X86InlineAsmRegClass::ymm_reg) => "x", InlineAsmRegClass::X86(X86InlineAsmRegClass::zmm_reg) => "v", @@ -459,6 +460,7 @@ fn modifier_to_llvm( Some('r') => Some('q'), _ => unreachable!(), }, + InlineAsmRegClass::X86(X86InlineAsmRegClass::reg_byte) => None, InlineAsmRegClass::X86(reg @ X86InlineAsmRegClass::xmm_reg) | InlineAsmRegClass::X86(reg @ X86InlineAsmRegClass::ymm_reg) | InlineAsmRegClass::X86(reg @ X86InlineAsmRegClass::zmm_reg) => match (reg, modifier) { @@ -499,6 +501,7 @@ fn dummy_output_type(cx: &CodegenCx<'ll, 'tcx>, reg: InlineAsmRegClass) -> &'ll InlineAsmRegClass::RiscV(RiscVInlineAsmRegClass::freg) => cx.type_f32(), InlineAsmRegClass::X86(X86InlineAsmRegClass::reg) | InlineAsmRegClass::X86(X86InlineAsmRegClass::reg_abcd) => cx.type_i32(), + InlineAsmRegClass::X86(X86InlineAsmRegClass::reg_byte) => cx.type_i8(), InlineAsmRegClass::X86(X86InlineAsmRegClass::xmm_reg) | InlineAsmRegClass::X86(X86InlineAsmRegClass::ymm_reg) | InlineAsmRegClass::X86(X86InlineAsmRegClass::zmm_reg) => cx.type_f32(), |