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| author | Stephen Hines <srhines@google.com> | 2014-12-04 19:51:48 +0000 |
|---|---|---|
| committer | Android Git Automerger <android-git-automerger@android.com> | 2014-12-04 19:51:48 +0000 |
| commit | a21bbdfad461e957fa42ac9d6860ddc9de2da3e9 (patch) | |
| tree | 8d32ff2094b47e15a8def30d62fd7dee6e009de3 /test/Transforms/InstCombine/overflow-mul.ll | |
| parent | 6b8c6a5088c221af2b25065b8b6b8b0fec8a116f (diff) | |
| parent | 876d6995443e99d13696f3941c3a789a4daa7c7a (diff) | |
| download | external_llvm-a21bbdfad461e957fa42ac9d6860ddc9de2da3e9.zip external_llvm-a21bbdfad461e957fa42ac9d6860ddc9de2da3e9.tar.gz external_llvm-a21bbdfad461e957fa42ac9d6860ddc9de2da3e9.tar.bz2 | |
am 876d6995: Merge "Update aosp/master LLVM for rebase to r222494."
* commit '876d6995443e99d13696f3941c3a789a4daa7c7a':
Update aosp/master LLVM for rebase to r222494.
Diffstat (limited to 'test/Transforms/InstCombine/overflow-mul.ll')
| -rw-r--r-- | test/Transforms/InstCombine/overflow-mul.ll | 13 |
1 files changed, 13 insertions, 0 deletions
diff --git a/test/Transforms/InstCombine/overflow-mul.ll b/test/Transforms/InstCombine/overflow-mul.ll index cbb2f5f..6d8d40b 100644 --- a/test/Transforms/InstCombine/overflow-mul.ll +++ b/test/Transforms/InstCombine/overflow-mul.ll @@ -173,3 +173,16 @@ define <4 x i32> @pr20113(<4 x i16> %a, <4 x i16> %b) { %vcgez.i = sext <4 x i1> %tmp to <4 x i32> ret <4 x i32> %vcgez.i } + +@pr21445_data = external global i32 +define i1 @pr21445(i8 %a) { +; CHECK-LABEL: @pr21445( +; CHECK-NEXT: %[[umul:.*]] = call { i8, i1 } @llvm.umul.with.overflow.i8(i8 %a, i8 ptrtoint (i32* @pr21445_data to i8)) +; CHECK-NEXT: %[[cmp:.*]] = extractvalue { i8, i1 } %[[umul]], 1 +; CHECK-NEXT: ret i1 %[[cmp]] + %ext = zext i8 %a to i32 + %mul = mul i32 %ext, zext (i8 ptrtoint (i32* @pr21445_data to i8) to i32) + %and = and i32 %mul, 255 + %cmp = icmp ne i32 %mul, %and + ret i1 %cmp +} |