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Rename the current PPC BCL definition to BCLalways

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BCL is normally a conditional branch-and-link instruction, but has
an unconditional form (which is used in the SjLj code, for example).
To make clear that this BCL instruction definition is specifically
the special unconditional form (which does not meaningfully take
a condition-register input), rename it to BCLalways.

No functionality change intended.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@178803 91177308-0d34-0410-b5e6-96231b3b80d8
This commit is contained in:
Hal Finkel 2013-04-04 22:55:54 +00:00
parent 7530a9f7d1
commit caeeb18650
3 changed files with 5 additions and 5 deletions
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2
lib/Target/PowerPC/PPCAsmPrinter.cpp
View File

@ -914,7 +914,7 @@ EmitFunctionStubs(const MachineModuleInfoMachO::SymbolListTy &Stubs) {
// mflr r0
OutStreamer.EmitInstruction(MCInstBuilder(PPC::MFLR).addReg(PPC::R0));
// bcl 20, 31, AnonSymbol
OutStreamer.EmitInstruction(MCInstBuilder(PPC::BCL).addExpr(Anon));
OutStreamer.EmitInstruction(MCInstBuilder(PPC::BCLalways).addExpr(Anon));
OutStreamer.EmitLabel(AnonSymbol);
// mflr r11
OutStreamer.EmitInstruction(MCInstBuilder(PPC::MFLR).addReg(PPC::R11));

2
lib/Target/PowerPC/PPCISelLowering.cpp
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@ -6080,7 +6080,7 @@ PPCTargetLowering::emitEHSjLjSetJmp(MachineInstr *MI,
}
// Setup
MIB = BuildMI(*thisMBB, MI, DL, TII->get(PPC::BCL)).addMBB(mainMBB);
MIB = BuildMI(*thisMBB, MI, DL, TII->get(PPC::BCLalways)).addMBB(mainMBB);
MIB.addRegMask(PPCRegInfo->getNoPreservedMask());
BuildMI(*thisMBB, MI, DL, TII->get(PPC::LI), restoreDstReg).addImm(1);

6
lib/Target/PowerPC/PPCInstrInfo.td
View File

@ -524,11 +524,11 @@ let isBranch = 1, isTerminator = 1, hasCtrlDep = 1, PPC970_Unit = 7 in {
}
}
// The direct BCL used by the SjLj setjmp code.
// The unconditional BCL used by the SjLj setjmp code.
let isCall = 1, hasCtrlDep = 1, isCodeGenOnly = 1, PPC970_Unit = 7 in {
let Defs = [LR], Uses = [RM] in {
def BCL : BForm_2<16, 20, 31, 0, 1, (outs), (ins condbrtarget:$dst),
"bcl 20, 31, $dst">;
def BCLalways : BForm_2<16, 20, 31, 0, 1, (outs), (ins condbrtarget:$dst),
"bcl 20, 31, $dst">;
}
}