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R600: Remove predicated_break inst

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We were using two instructions for similar purpose : break and
predicated break. Only predicated_break was emitted and it was
lowered at R600ControlFlowFinalizer to JUMP;CF_BREAK;POP.
This commit simplify the situation by making AMDILCFGStructurizer
emit IF_PREDICATE;BREAK;ENDIF; instead of predicated_break (which
is now removed).

There is no functionality change.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@187510 91177308-0d34-0410-b5e6-96231b3b80d8
This commit is contained in:
Vincent Lejeune
2013-07-31 19:31:14 +00:00
parent 16e4ed5879
commit acf7350385
4 changed files with 7 additions and 59 deletions
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11
lib/Target/R600/R600ControlFlowFinalizer.cpp
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@ -457,18 +457,11 @@ public:
MI->eraseFromParent();
break;
}
case AMDGPU::PREDICATED_BREAK: {
CurrentStack--;
CfCount += 3;
BuildMI(MBB, MI, MBB.findDebugLoc(MI), getHWInstrDesc(CF_JUMP))
.addImm(CfCount)
.addImm(1);
case AMDGPU::BREAK: {
CfCount ++;
MachineInstr *MIb = BuildMI(MBB, MI, MBB.findDebugLoc(MI),
getHWInstrDesc(CF_LOOP_BREAK))
.addImm(0);
BuildMI(MBB, MI, MBB.findDebugLoc(MI), getHWInstrDesc(CF_POP))
.addImm(CfCount)
.addImm(1);
LoopStack.back().second.insert(MIb);
MI->eraseFromParent();
break;