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578b3ccd8f
Differential Revision: http://reviews.llvm.org/D6430 git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@222879 91177308-0d34-0410-b5e6-96231b3b80d8
16 lines
504 B
LLVM
16 lines
504 B
LLVM
; RUN: opt < %s -instcombine -S | \
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; RUN: FileCheck %s
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; Should be optimized to one and.
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define i1 @test1(i32 %a, i32 %b) {
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; CHECK-LABEL: @test1(
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; CHECK-NEXT: %1 = xor i32 %a, %b
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; CHECK-NEXT: %2 = and i32 %1, 65280
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; CHECK-NEXT: %tmp = icmp ne i32 %2, 0
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; CHECK-NEXT: ret i1 %tmp
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%tmp1 = and i32 %a, 65280 ; <i32> [#uses=1]
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%tmp3 = and i32 %b, 65280 ; <i32> [#uses=1]
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%tmp = icmp ne i32 %tmp1, %tmp3 ; <i1> [#uses=1]
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ret i1 %tmp
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}
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