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authorbors <bors@rust-lang.org>2022-10-14 01:28:06 +0000
committerbors <bors@rust-lang.org>2022-10-14 01:28:06 +0000
commitedabf59ca4646b3fc1a961c26431215001043f6a (patch)
tree515e1d73921c795c293e93e654e252cced0b9358 /compiler/rustc_codegen_llvm/src/asm.rs
parent60bd3f96779dbe6bd206dae09395e9af7d580552 (diff)
parent3f12e4bd21a32db319ad66f1db29a603798226d2 (diff)
downloadrust-edabf59ca4646b3fc1a961c26431215001043f6a.tar.gz
rust-edabf59ca4646b3fc1a961c26431215001043f6a.zip
Auto merge of #103026 - matthiaskrgr:rollup-gfmlfkt, r=matthiaskrgr
Rollup of 7 pull requests

Successful merges:

 - #103000 (Add suggestion to the "missing native library" error)
 - #103006 (rustdoc: don't ICE on `TyKind::Typeof`)
 - #103008 (replace ReErased with fresh region vars in opaque types)
 - #103011 (Improve rustdoc `unsafe-fn` GUI test)
 - #103013 (Add new bootstrap entrypoints to triagebot)
 - #103016 (Ensure enum cast moves)
 - #103021 (Add links to relevant pages to find constraint information)

Failed merges:

r? `@ghost`
`@rustbot` modify labels: rollup
Diffstat (limited to 'compiler/rustc_codegen_llvm/src/asm.rs')
-rw-r--r--compiler/rustc_codegen_llvm/src/asm.rs4
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)