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| author | Chris Lattner <sabre@nondot.org> | 2011-01-03 03:33:47 +0000 |
|---|---|---|
| committer | Chris Lattner <sabre@nondot.org> | 2011-01-03 03:33:47 +0000 |
| commit | 03d49e955ed81d5adc6bc9d557c9e302584aa152 (patch) | |
| tree | 6284ac21fe8e63e6cee3f3fa2beaca62fe816509 /test/Transforms/EarlyCSE/basic.ll | |
| parent | a60a8b0eb773eabb3ad83e610e737efda525a0da (diff) | |
| download | llvm-03d49e955ed81d5adc6bc9d557c9e302584aa152.tar.gz llvm-03d49e955ed81d5adc6bc9d557c9e302584aa152.tar.bz2 llvm-03d49e955ed81d5adc6bc9d557c9e302584aa152.tar.xz | |
add a testcase for readonly call CSE
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@122730 91177308-0d34-0410-b5e6-96231b3b80d8
Diffstat (limited to 'test/Transforms/EarlyCSE/basic.ll')
| -rw-r--r-- | test/Transforms/EarlyCSE/basic.ll | 12 |
1 files changed, 12 insertions, 0 deletions
diff --git a/test/Transforms/EarlyCSE/basic.ll b/test/Transforms/EarlyCSE/basic.ll index a761ef764c..6d772599b3 100644 --- a/test/Transforms/EarlyCSE/basic.ll +++ b/test/Transforms/EarlyCSE/basic.ll @@ -75,3 +75,15 @@ F: ; CHECK: F: ; CHECK: ret i32 %Diff } + +declare i32 @func(i32 *%P) readonly + +;; Simple call CSE'ing. +; CHECK: @test5 +define i32 @test5(i32 *%P) { + %V1 = call i32 @func(i32* %P) + %V2 = call i32 @func(i32* %P) + %Diff = sub i32 %V1, %V2 + ret i32 %Diff + ; CHECK: ret i32 0 +} |