diff options
| author | Evan Cheng <evan.cheng@apple.com> | 2010-03-06 01:01:42 +0000 |
|---|---|---|
| committer | Evan Cheng <evan.cheng@apple.com> | 2010-03-06 01:01:42 +0000 |
| commit | afdc7d3aab1b50dca83bc6b6500459601be2603d (patch) | |
| tree | 10e994e3c3738294864e1cf609087b86f0a58242 /llvm/test/Transforms/InstCombine/objsize.ll | |
| parent | beec5a080f57929bd3ebb29d8da25c43ee67aa6d (diff) | |
| download | bcm5719-llvm-afdc7d3aab1b50dca83bc6b6500459601be2603d.tar.gz bcm5719-llvm-afdc7d3aab1b50dca83bc6b6500459601be2603d.zip | |
Transform @llvm.objectsize to integer if the argument is a result of malloc of known size.
llvm-svn: 97860
Diffstat (limited to 'llvm/test/Transforms/InstCombine/objsize.ll')
| -rw-r--r-- | llvm/test/Transforms/InstCombine/objsize.ll | 16 |
1 files changed, 16 insertions, 0 deletions
diff --git a/llvm/test/Transforms/InstCombine/objsize.ll b/llvm/test/Transforms/InstCombine/objsize.ll index bf1a37f975d..8bbfa8fb7e0 100644 --- a/llvm/test/Transforms/InstCombine/objsize.ll +++ b/llvm/test/Transforms/InstCombine/objsize.ll @@ -118,8 +118,24 @@ entry: ret i32 0 } +@s = external global i8* + +define void @test5(i32 %n) nounwind ssp { +; CHECK: @test5 +entry: + %0 = tail call noalias i8* @malloc(i32 20) nounwind + %1 = tail call i32 @llvm.objectsize.i32(i8* %0, i1 false) + %2 = load i8** @s, align 8 +; CHECK-NOT: @llvm.objectsize +; CHECK: @__memcpy_chk(i8* %0, i8* %1, i32 10, i32 20) + %3 = tail call i8* @__memcpy_chk(i8* %0, i8* %2, i32 10, i32 %1) nounwind + ret void +} + declare i8* @__memset_chk(i8*, i32, i64, i64) nounwind +declare noalias i8* @malloc(i32) nounwind + declare i32 @llvm.objectsize.i32(i8*, i1) nounwind readonly declare i64 @llvm.objectsize.i64(i8*, i1) nounwind readonly |
