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| author | Guillaume Gomez <guillaume.gomez@huawei.com> | 2022-10-13 22:05:24 +0200 |
|---|---|---|
| committer | Guillaume Gomez <guillaume.gomez@huawei.com> | 2022-10-13 22:05:49 +0200 |
| commit | 2214748adeb74a95405422e766004fd380e41abe (patch) | |
| tree | f4c5e4cc4bf35fa41adb17d108282f596b9e1532 /compiler/rustc_codegen_llvm/src/asm.rs | |
| parent | e6ce5627a9e8af9ae4673a390954fffaf526e5cc (diff) | |
| download | rust-2214748adeb74a95405422e766004fd380e41abe.tar.gz rust-2214748adeb74a95405422e766004fd380e41abe.zip | |
Add links to relevant pages to find constraint information
Diffstat (limited to 'compiler/rustc_codegen_llvm/src/asm.rs')
| -rw-r--r-- | compiler/rustc_codegen_llvm/src/asm.rs | 4 |
1 files changed, 4 insertions, 0 deletions
diff --git a/compiler/rustc_codegen_llvm/src/asm.rs b/compiler/rustc_codegen_llvm/src/asm.rs index e723187ff1f..017513721b7 100644 --- a/compiler/rustc_codegen_llvm/src/asm.rs +++ b/compiler/rustc_codegen_llvm/src/asm.rs @@ -551,6 +551,8 @@ fn reg_to_llvm(reg: InlineAsmRegOrRegClass, layout: Option<&TyAndLayout<'_>>) -> format!("{{{}}}", reg.name()) } } + // The constraints can be retrieved from + // https://llvm.org/docs/LangRef.html#supported-constraint-code-list InlineAsmRegOrRegClass::RegClass(reg) => match reg { InlineAsmRegClass::AArch64(AArch64InlineAsmRegClass::reg) => "r", InlineAsmRegClass::AArch64(AArch64InlineAsmRegClass::vreg) => "w", @@ -624,6 +626,8 @@ fn modifier_to_llvm( reg: InlineAsmRegClass, modifier: Option<char>, ) -> Option<char> { + // The modifiers can be retrieved from + // https://llvm.org/docs/LangRef.html#asm-template-argument-modifiers match reg { InlineAsmRegClass::AArch64(AArch64InlineAsmRegClass::reg) => modifier, InlineAsmRegClass::AArch64(AArch64InlineAsmRegClass::vreg) |