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Revert r58489. It isn't correct for all cases.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@58523 91177308-0d34-0410-b5e6-96231b3b80d8
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@ -273,10 +273,10 @@ void PEI::saveCalleeSavedRegisters(MachineFunction &Fn) {
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MBB = FI;
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I = MBB->end(); --I;
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// Skip over all "return" instructions, which are part of the return
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// Skip over all terminator instructions, which are part of the return
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// sequence.
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MachineBasicBlock::iterator I2 = I;
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while (I2 != MBB->begin() && (--I2)->getDesc().isReturn())
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while (I2 != MBB->begin() && (--I2)->getDesc().isTerminator())
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I = I2;
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bool AtStart = I == MBB->begin();
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@ -850,7 +850,8 @@ void X86RegisterInfo::emitEpilogue(MachineFunction &MF,
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while (MBBI != MBB.begin()) {
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MachineBasicBlock::iterator PI = prior(MBBI);
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unsigned Opc = PI->getOpcode();
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if (Opc != X86::POP32r && Opc != X86::POP64r && !PI->getDesc().isReturn())
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if (Opc != X86::POP32r && Opc != X86::POP64r &&
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!PI->getDesc().isTerminator())
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break;
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--MBBI;
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}
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