diff options
Diffstat (limited to 'llvm/test/Transforms')
| -rw-r--r-- | llvm/test/Transforms/InstCombine/2008-02-16-SDivOverflow.ll | 14 | ||||
| -rw-r--r-- | llvm/test/Transforms/InstSimplify/exact-nsw-nuw.ll | 16 |
2 files changed, 16 insertions, 14 deletions
diff --git a/llvm/test/Transforms/InstCombine/2008-02-16-SDivOverflow.ll b/llvm/test/Transforms/InstCombine/2008-02-16-SDivOverflow.ll deleted file mode 100644 index 917d3d9436b..00000000000 --- a/llvm/test/Transforms/InstCombine/2008-02-16-SDivOverflow.ll +++ /dev/null @@ -1,14 +0,0 @@ -; RUN: opt < %s -instcombine -S | grep "ret i.* 0" | count 2 -; PR2048 - -define i32 @i(i32 %a) { - %tmp1 = sdiv i32 %a, -1431655765 - %tmp2 = sdiv i32 %tmp1, 3 - ret i32 %tmp2 -} - -define i8 @j(i8 %a) { - %tmp1 = sdiv i8 %a, 64 - %tmp2 = sdiv i8 %tmp1, 3 - ret i8 %tmp2 -} diff --git a/llvm/test/Transforms/InstSimplify/exact-nsw-nuw.ll b/llvm/test/Transforms/InstSimplify/exact-nsw-nuw.ll index a0e326b13c0..5ccc8083e64 100644 --- a/llvm/test/Transforms/InstSimplify/exact-nsw-nuw.ll +++ b/llvm/test/Transforms/InstSimplify/exact-nsw-nuw.ll @@ -42,3 +42,19 @@ define i32 @shift5(i32 %A, i32 %B) { %D = ashr i32 %C, %B ret i32 %D } + +; CHECK-LABEL: @div1( +; CHECK: ret i32 0 +define i32 @div1(i32 %V) { + %A = udiv i32 %V, -2147483648 + %B = udiv i32 %A, -2147483648 + ret i32 %B +} + +; CHECK-LABEL: @div2( +; CHECK-NOT: ret i32 0 +define i32 @div2(i32 %V) { + %A = sdiv i32 %V, -1 + %B = sdiv i32 %A, -2147483648 + ret i32 %B +} |
