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FastISel: Use finishCondBranch() for ARM,Mips,PowerPC FastISel

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Note that after this change branch probabilities are preserved now.

llvm-svn: 245998
This commit is contained in:
Matthias Braun 2015-08-26 01:55:47 +00:00
parent a64770afff
commit cfe46ab1cf
3 changed files with 5 additions and 10 deletions
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9
lib/Target/ARM/ARMFastISel.cpp
View File

@ -1275,8 +1275,7 @@ bool ARMFastISel::SelectBranch(const Instruction *I) {
unsigned BrOpc = isThumb2 ? ARM::t2Bcc : ARM::Bcc;
BuildMI(*FuncInfo.MBB, FuncInfo.InsertPt, DbgLoc, TII.get(BrOpc))
.addMBB(TBB).addImm(ARMPred).addReg(ARM::CPSR);
fastEmitBranch(FBB, DbgLoc);
FuncInfo.MBB->addSuccessor(TBB);
finishCondBranch(BI->getParent(), TBB, FBB);
return true;
}
} else if (TruncInst *TI = dyn_cast<TruncInst>(BI->getCondition())) {
@ -1300,8 +1299,7 @@ bool ARMFastISel::SelectBranch(const Instruction *I) {
BuildMI(*FuncInfo.MBB, FuncInfo.InsertPt, DbgLoc, TII.get(BrOpc))
.addMBB(TBB).addImm(CCMode).addReg(ARM::CPSR);
fastEmitBranch(FBB, DbgLoc);
FuncInfo.MBB->addSuccessor(TBB);
finishCondBranch(BI->getParent(), TBB, FBB);
return true;
}
} else if (const ConstantInt *CI =
@ -1338,8 +1336,7 @@ bool ARMFastISel::SelectBranch(const Instruction *I) {
unsigned BrOpc = isThumb2 ? ARM::t2Bcc : ARM::Bcc;
BuildMI(*FuncInfo.MBB, FuncInfo.InsertPt, DbgLoc, TII.get(BrOpc))
.addMBB(TBB).addImm(CCMode).addReg(ARM::CPSR);
fastEmitBranch(FBB, DbgLoc);
FuncInfo.MBB->addSuccessor(TBB);
finishCondBranch(BI->getParent(), TBB, FBB);
return true;
}

3
lib/Target/Mips/MipsFastISel.cpp
View File

@ -912,8 +912,7 @@ bool MipsFastISel::selectBranch(const Instruction *I) {
BuildMI(*BrBB, FuncInfo.InsertPt, DbgLoc, TII.get(Mips::BGTZ))
.addReg(CondReg)
.addMBB(TBB);
fastEmitBranch(FBB, DbgLoc);
FuncInfo.MBB->addSuccessor(TBB);
finishCondBranch(BI->getParent(), TBB, FBB);
return true;
}
return false;

3
lib/Target/PowerPC/PPCFastISel.cpp
View File

@ -775,8 +775,7 @@ bool PPCFastISel::SelectBranch(const Instruction *I) {
BuildMI(*BrBB, FuncInfo.InsertPt, DbgLoc, TII.get(PPC::BCC))
.addImm(PPCPred).addReg(CondReg).addMBB(TBB);
fastEmitBranch(FBB, DbgLoc);
FuncInfo.MBB->addSuccessor(TBB);
finishCondBranch(BI->getParent(), TBB, FBB);
return true;
}
} else if (const ConstantInt *CI =