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author | Reid Kleckner <rnk@google.com> | 2016-12-07 00:17:18 +0000 |
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committer | Reid Kleckner <rnk@google.com> | 2016-12-07 00:17:18 +0000 |
commit | d3f65406bbc1874bdec9af90ccbaa53ff60110c9 (patch) | |
tree | e20e6561ebfee1390d1454421e96dec1de8360cb /lib/Sema/SemaStmtAsm.cpp | |
parent | 9d208e19f424c4a10afbd6d391cd3cbe49a1d6d4 (diff) | |
download | clang-d3f65406bbc1874bdec9af90ccbaa53ff60110c9.tar.gz |
Address review feedback by adding comments about ${:uid}
git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@288868 91177308-0d34-0410-b5e6-96231b3b80d8
Diffstat (limited to 'lib/Sema/SemaStmtAsm.cpp')
-rw-r--r-- | lib/Sema/SemaStmtAsm.cpp | 8 |
1 files changed, 5 insertions, 3 deletions
diff --git a/lib/Sema/SemaStmtAsm.cpp b/lib/Sema/SemaStmtAsm.cpp index 0064a2c512..9a18244984 100644 --- a/lib/Sema/SemaStmtAsm.cpp +++ b/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; |