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| author | Benjamin Kramer <benny.kra@googlemail.com> | 2011-01-06 13:11:05 +0000 |
|---|---|---|
| committer | Benjamin Kramer <benny.kra@googlemail.com> | 2011-01-06 13:11:05 +0000 |
| commit | 240d42d18559a1f75558951ada556baaf289c7f0 (patch) | |
| tree | b9fca9b40ab24d9627e20e4ea40a95c497ff4378 /test/Transforms/InstCombine/objsize.ll | |
| parent | 783a5c2b695015a5a2dfc48ee28b9936d0077542 (diff) | |
| download | llvm-240d42d18559a1f75558951ada556baaf289c7f0.tar.gz llvm-240d42d18559a1f75558951ada556baaf289c7f0.tar.bz2 llvm-240d42d18559a1f75558951ada556baaf289c7f0.tar.xz | |
InstCombine: If we call llvm.objectsize on a malloc call we can replace it with the size passed to malloc.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@122959 91177308-0d34-0410-b5e6-96231b3b80d8
Diffstat (limited to 'test/Transforms/InstCombine/objsize.ll')
| -rw-r--r-- | test/Transforms/InstCombine/objsize.ll | 16 |
1 files changed, 16 insertions, 0 deletions
diff --git a/test/Transforms/InstCombine/objsize.ll b/test/Transforms/InstCombine/objsize.ll index 043525b755..9950e5f4cc 100644 --- a/test/Transforms/InstCombine/objsize.ll +++ b/test/Transforms/InstCombine/objsize.ll @@ -160,3 +160,19 @@ define i32 @test7() { ret i32 %objsize } +define i32 @test8(i32 %x) { +; CHECK: @test8 + %alloc = call noalias i8* @malloc(i32 %x) nounwind + %objsize = call i32 @llvm.objectsize.i32(i8* %alloc, i1 false) nounwind readonly +; CHECK-NEXT: ret i32 %x + ret i32 %objsize +} + +define i32 @test9(i32 %x) { +; CHECK: @test9 + %alloc = call noalias i8* @malloc(i32 %x) nounwind + %gep = getelementptr inbounds i8* %alloc, i32 16 + %objsize = call i32 @llvm.objectsize.i32(i8* %gep, i1 false) nounwind readonly +; CHECK-NOT: ret i32 %x + ret i32 %objsize +} |