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| author | Eric Christopher <echristo@gmail.com> | 2019-04-17 04:52:47 +0000 |
|---|---|---|
| committer | Eric Christopher <echristo@gmail.com> | 2019-04-17 04:52:47 +0000 |
| commit | cee313d288a4faf0355d76fb6e0e927e211d08a5 (patch) | |
| tree | d386075318d761197779a96e5d8fc0dc7b06342b /llvm/test/Transforms/InstCombine/deadcode.ll | |
| parent | c3d6a929fdd92fd06d4304675ade8d7210ee711a (diff) | |
| download | bcm5719-llvm-cee313d288a4faf0355d76fb6e0e927e211d08a5.tar.gz bcm5719-llvm-cee313d288a4faf0355d76fb6e0e927e211d08a5.zip | |
Revert "Temporarily Revert "Add basic loop fusion pass.""
The reversion apparently deleted the test/Transforms directory.
Will be re-reverting again.
llvm-svn: 358552
Diffstat (limited to 'llvm/test/Transforms/InstCombine/deadcode.ll')
| -rw-r--r-- | llvm/test/Transforms/InstCombine/deadcode.ll | 33 |
1 files changed, 33 insertions, 0 deletions
diff --git a/llvm/test/Transforms/InstCombine/deadcode.ll b/llvm/test/Transforms/InstCombine/deadcode.ll new file mode 100644 index 00000000000..c5fa58babdb --- /dev/null +++ b/llvm/test/Transforms/InstCombine/deadcode.ll @@ -0,0 +1,33 @@ +; RUN: opt < %s -instcombine -S | grep "ret i32 %A" +; RUN: opt < %s -die -S | not grep call.*llvm + +define i32 @test(i32 %A) { + %X = or i1 false, false + br i1 %X, label %T, label %C + +T: ; preds = %0 + %B = add i32 %A, 1 + br label %C + +C: ; preds = %T, %0 + %C.upgrd.1 = phi i32 [ %B, %T ], [ %A, %0 ] + ret i32 %C.upgrd.1 +} + +define i32* @test2(i32 %width) { + %tmp = call i8* @llvm.stacksave( ) + %tmp14 = alloca i32, i32 %width + ret i32* %tmp14 +} + +declare i8* @llvm.stacksave() + +declare void @llvm.lifetime.start.p0i8(i64, i8*) +declare void @llvm.lifetime.end.p0i8(i64, i8*) + +define void @test3() { + call void @llvm.lifetime.start.p0i8(i64 -1, i8* undef) + call void @llvm.lifetime.end.p0i8(i64 -1, i8* undef) + ret void +} + |
