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| author | Nick Lewycky <nicholas@mxc.ca> | 2011-01-28 03:28:10 +0000 |
|---|---|---|
| committer | Nick Lewycky <nicholas@mxc.ca> | 2011-01-28 03:28:10 +0000 |
| commit | df3bfae1515c826804754616b989b18630fc4d93 (patch) | |
| tree | 76656409f00a66862e87a7597f2841da00825355 /test/Transforms/InstCombine/select.ll | |
| parent | 1ffb5336999b327384752b0f60ad0c4cb4cb8946 (diff) | |
| download | llvm-df3bfae1515c826804754616b989b18630fc4d93.tar.gz llvm-df3bfae1515c826804754616b989b18630fc4d93.tar.bz2 llvm-df3bfae1515c826804754616b989b18630fc4d93.tar.xz | |
Fold select + select where both selects are on the same condition.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@124469 91177308-0d34-0410-b5e6-96231b3b80d8
Diffstat (limited to 'test/Transforms/InstCombine/select.ll')
| -rw-r--r-- | test/Transforms/InstCombine/select.ll | 17 |
1 files changed, 16 insertions, 1 deletions
diff --git a/test/Transforms/InstCombine/select.ll b/test/Transforms/InstCombine/select.ll index 54cfc467cc..b66b22cff6 100644 --- a/test/Transforms/InstCombine/select.ll +++ b/test/Transforms/InstCombine/select.ll @@ -692,7 +692,7 @@ define i64 @test50(i32 %a) nounwind { ; PR8994 -; Theis select instruction can't be eliminated because trying to do so would +; This select instruction can't be eliminated because trying to do so would ; change the number of vector elements. This used to assert. define i48 @test51(<3 x i1> %icmp, <3 x i16> %tmp) { %select = select <3 x i1> %icmp, <3 x i16> zeroinitializer, <3 x i16> %tmp @@ -700,3 +700,18 @@ define i48 @test51(<3 x i1> %icmp, <3 x i16> %tmp) { %tmp2 = bitcast <3 x i16> %select to i48 ret i48 %tmp2 } + +; PR8575 + +@g = common global i32 0, align 4 +define void @test52(i32 %n, i32 %m) nounwind { +entry: + %cmp = icmp sgt i32 %n, %m + %. = select i1 %cmp, i32 1, i32 3 + %add = add nsw i32 %., 3 + %storemerge = select i1 %cmp, i32 %., i32 %add +; CHECK: select i1 %cmp, i32 1, i32 6 + store i32 %storemerge, i32* @g, align 4 + ret void +} + |