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| author | Diego Novillo <dnovillo@google.com> | 2013-05-24 12:26:52 +0000 |
|---|---|---|
| committer | Diego Novillo <dnovillo@google.com> | 2013-05-24 12:26:52 +0000 |
| commit | c63995394de60996ebfe52a47cf2e3a0716d7e3c (patch) | |
| tree | a74f82a4691d823a2fc5ab2d87c5798f68174cf1 /llvm/lib/AsmParser/LLParser.cpp | |
| parent | 646ec67e252f7daa5fe1f5d7719f247c89293b0c (diff) | |
| download | bcm5719-llvm-c63995394de60996ebfe52a47cf2e3a0716d7e3c.tar.gz bcm5719-llvm-c63995394de60996ebfe52a47cf2e3a0716d7e3c.zip | |
Add a new function attribute 'cold' to functions.
Other than recognizing the attribute, the patch does little else.
It changes the branch probability analyzer so that edges into
blocks postdominated by a cold function are given low weight.
Added analysis and code generation tests. Added documentation for the
new attribute.
llvm-svn: 182638
Diffstat (limited to 'llvm/lib/AsmParser/LLParser.cpp')
| -rw-r--r-- | llvm/lib/AsmParser/LLParser.cpp | 2 |
1 files changed, 2 insertions, 0 deletions
diff --git a/llvm/lib/AsmParser/LLParser.cpp b/llvm/lib/AsmParser/LLParser.cpp index 62d8070d186..b22d251f9e9 100644 --- a/llvm/lib/AsmParser/LLParser.cpp +++ b/llvm/lib/AsmParser/LLParser.cpp @@ -909,6 +909,7 @@ bool LLParser::ParseFnAttributeValuePairs(AttrBuilder &B, continue; } case lltok::kw_alwaysinline: B.addAttribute(Attribute::AlwaysInline); break; + case lltok::kw_cold: B.addAttribute(Attribute::Cold); break; case lltok::kw_inlinehint: B.addAttribute(Attribute::InlineHint); break; case lltok::kw_minsize: B.addAttribute(Attribute::MinSize); break; case lltok::kw_naked: B.addAttribute(Attribute::Naked); break; @@ -1222,6 +1223,7 @@ bool LLParser::ParseOptionalReturnAttrs(AttrBuilder &B) { case lltok::kw_alignstack: case lltok::kw_alwaysinline: + case lltok::kw_cold: case lltok::kw_inlinehint: case lltok::kw_minsize: case lltok::kw_naked: |
