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| author | Duncan Sands <baldrick@free.fr> | 2012-03-13 14:07:05 +0000 |
|---|---|---|
| committer | Duncan Sands <baldrick@free.fr> | 2012-03-13 14:07:05 +0000 |
| commit | bd0fe5642544d4ec3aee1ede7af60c006bae5cbf (patch) | |
| tree | d45f0f6639dd84e8c9d8ac651d4a77ccdb46e2e7 /test | |
| parent | c347b6f4b600368751f6f79d270bf58f7d54a348 (diff) | |
| download | external_llvm-bd0fe5642544d4ec3aee1ede7af60c006bae5cbf.zip external_llvm-bd0fe5642544d4ec3aee1ede7af60c006bae5cbf.tar.gz external_llvm-bd0fe5642544d4ec3aee1ede7af60c006bae5cbf.tar.bz2 | |
Generalize the "trunc(ptrtoint(x)) - trunc(ptrtoint(y)) ->
trunc(ptrtoint(x-y))" optimization introduced by Chandler.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@152626 91177308-0d34-0410-b5e6-96231b3b80d8
Diffstat (limited to 'test')
| -rw-r--r-- | test/Transforms/InstSimplify/reassociate.ll | 9 |
1 files changed, 9 insertions, 0 deletions
diff --git a/test/Transforms/InstSimplify/reassociate.ll b/test/Transforms/InstSimplify/reassociate.ll index 3c8169e..e659e6f 100644 --- a/test/Transforms/InstSimplify/reassociate.ll +++ b/test/Transforms/InstSimplify/reassociate.ll @@ -184,3 +184,12 @@ define i32 @udiv5(i32 %x, i32 %y) { ; CHECK: ret i32 %x } +define i16 @trunc1(i32 %x) { +; CHECK: @trunc1 + %y = add i32 %x, 1 + %tx = trunc i32 %x to i16 + %ty = trunc i32 %y to i16 + %d = sub i16 %ty, %tx + ret i16 %d +; CHECK: ret i16 1 +} |