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Benjamin Kramer
f43438b6c3
X86: Emit test instead of constant shift + compare if the shift result is unused.
This allows us to compile return (mask & 0x8 ? a : b); into testb $8, %dil cmovnel %edx, %esi instead of andl $8, %edi shrl $3, %edi cmovnel %edx, %esi which we formed previously because dag combiner canonicalizes setcc of and into shift. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@207088 91177308-0d34-0410-b5e6-96231b3b80d8
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