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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 | 77226a03dca98e6237c1068f2652fe41bea7b687 (patch) | |
| tree | 3a8cb78a478d9e82735484091ae29647e3ec9002 /lib/IR/Verifier.cpp | |
| parent | 49a6a8d8f2994249c81b7914b07015714748a55c (diff) | |
| download | external_llvm-77226a03dca98e6237c1068f2652fe41bea7b687.zip external_llvm-77226a03dca98e6237c1068f2652fe41bea7b687.tar.gz external_llvm-77226a03dca98e6237c1068f2652fe41bea7b687.tar.bz2 | |
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.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@182638 91177308-0d34-0410-b5e6-96231b3b80d8
Diffstat (limited to 'lib/IR/Verifier.cpp')
| -rw-r--r-- | lib/IR/Verifier.cpp | 3 |
1 files changed, 2 insertions, 1 deletions
diff --git a/lib/IR/Verifier.cpp b/lib/IR/Verifier.cpp index d106173..a94c156 100644 --- a/lib/IR/Verifier.cpp +++ b/lib/IR/Verifier.cpp @@ -692,7 +692,8 @@ void Verifier::VerifyAttributeTypes(AttributeSet Attrs, unsigned Idx, I->getKindAsEnum() == Attribute::SanitizeMemory || I->getKindAsEnum() == Attribute::MinSize || I->getKindAsEnum() == Attribute::NoDuplicate || - I->getKindAsEnum() == Attribute::NoBuiltin) { + I->getKindAsEnum() == Attribute::NoBuiltin || + I->getKindAsEnum() == Attribute::Cold) { if (!isFunction) CheckFailed("Attribute '" + I->getKindAsString() + "' only applies to functions!", V); |