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[mips] Make "b" (unconditional branch) a pseudo. "b" is an assembly idiom, which is

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equivalent to "beq $zero, $zero, offset".




git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@190220 91177308-0d34-0410-b5e6-96231b3b80d8
This commit is contained in:
Akira Hatanaka
2013-09-06 23:40:15 +00:00
parent 77e1ebd18f
commit 1d04ca7987
4 changed files with 13 additions and 16 deletions
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4
lib/Target/Mips/MipsCodeEmitter.cpp
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@@ -323,6 +323,10 @@ bool MipsCodeEmitter::expandPseudos(MachineBasicBlock::instr_iterator &MI,
BuildMI(MBB, &*MI, MI->getDebugLoc(), II->get(Mips::SLL), Mips::ZERO)
.addReg(Mips::ZERO).addImm(0);
break;
case Mips::B:
BuildMI(MBB, &*MI, MI->getDebugLoc(), II->get(Mips::BEQ)).addReg(Mips::ZERO)
.addReg(Mips::ZERO).addOperand(MI->getOperand(0));
break;
case Mips::JALRPseudo:
BuildMI(MBB, &*MI, MI->getDebugLoc(), II->get(Mips::JALR), Mips::RA)
.addReg(MI->getOperand(0).getReg());