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remove some weirdness that came from the LSR code that has
nothing to do with dead instruction elimination. No tests in dejagnu depend on this, so I don't know what it was needed for. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@60202 91177308-0d34-0410-b5e6-96231b3b80d8
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@ -191,13 +191,6 @@ void llvm::RecursivelyDeleteTriviallyDeadInstructions(Value *V,
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I = *Insts.begin();
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Insts.erase(I);
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// If this is a PHI node, we may be able to make it dead if we know all the
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// input values are the same.
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if (PHINode *PN = dyn_cast<PHINode>(I)) {
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if (Value *PNV = PN->hasConstantValue())
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PN->replaceAllUsesWith(PNV);
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}
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// Okay, if the instruction is dead, delete it.
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if (!isInstructionTriviallyDead(I))
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continue;
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