diff options
Diffstat (limited to 'test/Transforms/InstCombine/intrinsics.ll')
| -rw-r--r-- | test/Transforms/InstCombine/intrinsics.ll | 15 |
1 files changed, 15 insertions, 0 deletions
diff --git a/test/Transforms/InstCombine/intrinsics.ll b/test/Transforms/InstCombine/intrinsics.ll index c63475c2bd..08dcfa731a 100644 --- a/test/Transforms/InstCombine/intrinsics.ll +++ b/test/Transforms/InstCombine/intrinsics.ll @@ -144,3 +144,18 @@ entry: ; CHECK-NEXT: %pop.cmp = icmp eq i32 %b, 0 ; CHECK-NEXT: volatile store i1 %pop.cmp, i1* %c } + + +define i32 @cttz_simplify1(i32 %x) nounwind readnone ssp { + %tmp1 = tail call i32 @llvm.ctlz.i32(i32 %x) ; <i32> [#uses=1] + %shr3 = lshr i32 %tmp1, 5 ; <i32> [#uses=1] + ret i32 %shr3 + +; CHECK: @cttz_simplify1 +; CHECK: icmp eq i32 %x, 0 +; CHECK-NEXT: zext i1 +; CHECK-NEXT: ret i32 +} + +declare i32 @llvm.ctlz.i32(i32) nounwind readnone + |