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5ff30e70f8
known zero in the LHS. Fixes PR12541. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@155818 91177308-0d34-0410-b5e6-96231b3b80d8
13 lines
285 B
LLVM
13 lines
285 B
LLVM
; RUN: opt -instcombine -S < %s | FileCheck %s
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; PR12541
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define i32 @foo(i32 %x) {
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%y = xor i32 %x, 3
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%z = srem i32 1656690544, %y
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%sext = shl i32 %z, 24
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%s = ashr exact i32 %sext, 24
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ret i32 %s
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; CHECK-NOT: and
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; The shifts were wrongly being turned into an and with 112
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}
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