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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/test/Feature | |
| 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/test/Feature')
| -rw-r--r-- | llvm/test/Feature/cold.ll | 9 |
1 files changed, 9 insertions, 0 deletions
diff --git a/llvm/test/Feature/cold.ll b/llvm/test/Feature/cold.ll new file mode 100644 index 00000000000..dcf79c5ba39 --- /dev/null +++ b/llvm/test/Feature/cold.ll @@ -0,0 +1,9 @@ +; RUN: llvm-as < %s | llvm-dis | FileCheck %s + +; CHECK: @fun() #0 +define void @fun() #0 { + ret void +} + +; CHECK: attributes #0 = { cold } +attributes #0 = { cold } |
