diff options
| author | Nick Lewycky <nicholas@mxc.ca> | 2008-11-27 22:41:10 +0000 |
|---|---|---|
| committer | Nick Lewycky <nicholas@mxc.ca> | 2008-11-27 22:41:10 +0000 |
| commit | 8ca524852257a44c106960923815d90003e5762c (patch) | |
| tree | a6d2b3eb9b2653d823017a4f6d34f78c47ac0c27 /test/Transforms | |
| parent | df563ca1f33a47b6e51f72c9bff2a88f27aa7c8a (diff) | |
Chris prefers icmp/select over udiv!
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@60187 91177308-0d34-0410-b5e6-96231b3b80d8
Diffstat (limited to 'test/Transforms')
| -rw-r--r-- | test/Transforms/InstCombine/2008-11-27-UDivNegative.ll | 6 | ||||
| -rw-r--r-- | test/Transforms/InstCombine/udiv-simplify-bug-1.ll | 9 |
2 files changed, 8 insertions, 7 deletions
diff --git a/test/Transforms/InstCombine/2008-11-27-UDivNegative.ll b/test/Transforms/InstCombine/2008-11-27-UDivNegative.ll new file mode 100644 index 0000000000..6a6b5f3863 --- /dev/null +++ b/test/Transforms/InstCombine/2008-11-27-UDivNegative.ll @@ -0,0 +1,6 @@ +; RUN: llvm-as < %s | opt -instcombine | llvm-dis | not grep div + +define i8 @test(i8 %x) readnone nounwind { + %A = udiv i8 %x, 250 + ret i8 %A +} diff --git a/test/Transforms/InstCombine/udiv-simplify-bug-1.ll b/test/Transforms/InstCombine/udiv-simplify-bug-1.ll index 6e76bcfd75..0036760ba5 100644 --- a/test/Transforms/InstCombine/udiv-simplify-bug-1.ll +++ b/test/Transforms/InstCombine/udiv-simplify-bug-1.ll @@ -1,16 +1,11 @@ ; RUN: llvm-as < %s | opt -instcombine | llvm-dis > %t1.ll -; RUN: grep udiv %t1.ll | count 3 -; RUN: grep zext %t1.ll | count 3 +; RUN: grep udiv %t1.ll | count 2 +; RUN: grep zext %t1.ll | count 2 ; PR2274 ; The udiv instructions shouldn't be optimized away, and the ; sext instructions should be optimized to zext. -define i64 @foo(i32 %x) nounwind { - %r = udiv i32 %x, -1 - %z = sext i32 %r to i64 - ret i64 %z -} define i64 @bar(i32 %x) nounwind { %y = lshr i32 %x, 30 %r = udiv i32 %y, 3 |