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| author | Evan Cheng <evan.cheng@apple.com> | 2010-03-23 06:06:09 +0000 |
|---|---|---|
| committer | Evan Cheng <evan.cheng@apple.com> | 2010-03-23 06:06:09 +0000 |
| commit | 3f7842232e853834a7338933663cc77ee0089b7f (patch) | |
| tree | b5d3de964f1cf2e5242f98f30e552c6e7cdc8bef /llvm/test/Transforms | |
| parent | 340861d29e954e9428c32856d03b3fb01aa5d864 (diff) | |
| download | bcm5719-llvm-3f7842232e853834a7338933663cc77ee0089b7f.tar.gz bcm5719-llvm-3f7842232e853834a7338933663cc77ee0089b7f.zip | |
Fix an incorrect logic causing instcombine to miss some _chk -> non-chk transformations.
llvm-svn: 99263
Diffstat (limited to 'llvm/test/Transforms')
| -rw-r--r-- | llvm/test/Transforms/InstCombine/objsize.ll | 15 |
1 files changed, 14 insertions, 1 deletions
diff --git a/llvm/test/Transforms/InstCombine/objsize.ll b/llvm/test/Transforms/InstCombine/objsize.ll index cd7b7c80679..f8b2ffca01e 100644 --- a/llvm/test/Transforms/InstCombine/objsize.ll +++ b/llvm/test/Transforms/InstCombine/objsize.ll @@ -118,6 +118,7 @@ entry: ret i32 0 } +; rdar://7782496 @s = external global i8* define void @test5(i32 %n) nounwind ssp { @@ -127,11 +128,23 @@ entry: %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) +; CHECK: @llvm.memcpy.i32(i8* %0, i8* %1, i32 10, i32 1) %3 = tail call i8* @__memcpy_chk(i8* %0, i8* %2, i32 10, i32 %1) nounwind ret void } +define void @test6(i32 %n) nounwind ssp { +; CHECK: @test6 +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 30, i32 20) + %3 = tail call i8* @__memcpy_chk(i8* %0, i8* %2, i32 30, i32 %1) nounwind + ret void +} + declare i8* @__memset_chk(i8*, i32, i64, i64) nounwind declare noalias i8* @malloc(i32) nounwind |
