diff options
Diffstat (limited to 'clang')
| -rw-r--r-- | clang/lib/Sema/SemaStmtAsm.cpp | 8 |
1 files changed, 5 insertions, 3 deletions
diff --git a/clang/lib/Sema/SemaStmtAsm.cpp b/clang/lib/Sema/SemaStmtAsm.cpp index 0064a2c5121..9a182449845 100644 --- a/clang/lib/Sema/SemaStmtAsm.cpp +++ b/clang/lib/Sema/SemaStmtAsm.cpp @@ -750,9 +750,11 @@ LabelDecl *Sema::GetOrCreateMSAsmLabel(StringRef ExternalLabelName, // Otherwise, insert it, but only resolve it if we have seen the label itself. std::string InternalName; llvm::raw_string_ostream OS(InternalName); - // Create an internal name for the label. The name should not be a valid mangled - // name, and should be unique. We use a dot to make the name an invalid mangled - // name. + // Create an internal name for the label. The name should not be a valid + // mangled name, and should be unique. We use a dot to make the name an + // invalid mangled name. We use LLVM's inline asm ${:uid} escape so that a + // unique label is generated each time this blob is emitted, even after + // inlining or LTO. OS << "__MSASMLABEL_.${:uid}__"; for (char C : ExternalLabelName) { OS << C; |
