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648b20d5db
bits are zero, not that the current low bits are zero. Fixes <rdar://problem/8606771>. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@117953 91177308-0d34-0410-b5e6-96231b3b80d8
21 lines
573 B
LLVM
21 lines
573 B
LLVM
; RUN: opt -instcombine -S < %s | FileCheck %s
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; <rdar://problem/8606771>
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define i32 @main(i32 %argc) nounwind ssp {
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entry:
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%tmp3151 = trunc i32 %argc to i8
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%tmp3161 = or i8 %tmp3151, -17
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%tmp3162 = and i8 %tmp3151, 122
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%tmp3163 = xor i8 %tmp3162, -17
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%tmp4114 = shl i8 %tmp3163, 6
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%tmp4115 = xor i8 %tmp4114, %tmp3163
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%tmp4120 = xor i8 %tmp3161, %tmp4115
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; CHECK: lshr i8 %tmp4115, 1
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; CHECK-NOT: shl i8 %tmp4126, 6
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%tmp4126 = lshr i8 %tmp4120, 7
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%tmp4127 = mul i8 %tmp4126, 64
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%tmp4086 = zext i8 %tmp4127 to i32
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; CHECK: ret i32
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ret i32 %tmp4086
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}
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