// ...
// fallthrough --> loopMBB
BB->addSuccessor(loopMBB);
+ loopMBB->addSuccessor(loopMBB);
+ loopMBB->addSuccessor(exitMBB);
// loopMBB:
// ll oldval, 0(ptr)
BuildMI(BB, dl, TII->get(Mips::SC), Tmp3).addReg(Tmp1).addReg(Ptr).addImm(0);
BuildMI(BB, dl, TII->get(Mips::BEQ))
.addReg(Tmp3).addReg(Mips::ZERO).addMBB(loopMBB);
- BB->addSuccessor(loopMBB);
- BB->addSuccessor(exitMBB);
MI->eraseFromParent(); // The instruction is gone now.
BB->end());
exitMBB->transferSuccessorsAndUpdatePHIs(BB);
+ BB->addSuccessor(loopMBB);
+ loopMBB->addSuccessor(loopMBB);
+ loopMBB->addSuccessor(sinkMBB);
+ sinkMBB->addSuccessor(exitMBB);
+
// thisMBB:
// addiu tmp1,$0,-4 # 0xfffffffc
// and addr,ptr,tmp1
BuildMI(BB, dl, TII->get(Mips::ANDi), Tmp4).addReg(Incr).addImm(MaskImm);
BuildMI(BB, dl, TII->get(Mips::SLL), Incr2).addReg(Tmp4).addReg(Shift);
- BB->addSuccessor(loopMBB);
// atomic.load.binop
// loopMBB:
.addReg(Tmp9).addReg(Addr).addImm(0);
BuildMI(BB, dl, TII->get(Mips::BEQ))
.addReg(Tmp13).addReg(Mips::ZERO).addMBB(loopMBB);
- BB->addSuccessor(loopMBB);
- BB->addSuccessor(sinkMBB);
// sinkMBB:
// and tmp10,oldval,mask
BuildMI(BB, dl, TII->get(Mips::SRA), Dest)
.addReg(Tmp12).addImm(ShiftImm);
- sinkMBB->addSuccessor(exitMBB);
-
MI->eraseFromParent(); // The instruction is gone now.
return exitMBB;
// ...
// fallthrough --> loop1MBB
BB->addSuccessor(loop1MBB);
+ loop1MBB->addSuccessor(exitMBB);
+ loop1MBB->addSuccessor(loop2MBB);
+ loop2MBB->addSuccessor(loop1MBB);
+ loop2MBB->addSuccessor(exitMBB);
// loop1MBB:
// ll dest, 0(ptr)
BuildMI(BB, dl, TII->get(Mips::LL), Dest).addReg(Ptr).addImm(0);
BuildMI(BB, dl, TII->get(Mips::BNE))
.addReg(Dest).addReg(Oldval).addMBB(exitMBB);
- BB->addSuccessor(exitMBB);
- BB->addSuccessor(loop2MBB);
// loop2MBB:
// or tmp1, $0, newval
BuildMI(BB, dl, TII->get(Mips::SC), Tmp3).addReg(Tmp1).addReg(Ptr).addImm(0);
BuildMI(BB, dl, TII->get(Mips::BEQ))
.addReg(Tmp3).addReg(Mips::ZERO).addMBB(loop1MBB);
- BB->addSuccessor(loop1MBB);
- BB->addSuccessor(exitMBB);
MI->eraseFromParent(); // The instruction is gone now.
BB->end());
exitMBB->transferSuccessorsAndUpdatePHIs(BB);
+ BB->addSuccessor(loop1MBB);
+ loop1MBB->addSuccessor(sinkMBB);
+ loop1MBB->addSuccessor(loop2MBB);
+ loop2MBB->addSuccessor(loop1MBB);
+ loop2MBB->addSuccessor(sinkMBB);
+ sinkMBB->addSuccessor(exitMBB);
+
// thisMBB:
// addiu tmp1,$0,-4 # 0xfffffffc
// and addr,ptr,tmp1
BuildMI(BB, dl, TII->get(Mips::SLL), Oldval2).addReg(Tmp4).addReg(Shift);
BuildMI(BB, dl, TII->get(Mips::ANDi), Tmp5).addReg(Newval).addImm(MaskImm);
BuildMI(BB, dl, TII->get(Mips::SLL), Newval2).addReg(Tmp5).addReg(Shift);
- BB->addSuccessor(loop1MBB);
// loop1MBB:
// ll oldval3,0(addr)
BuildMI(BB, dl, TII->get(Mips::AND), Oldval4).addReg(Oldval3).addReg(Mask);
BuildMI(BB, dl, TII->get(Mips::BNE))
.addReg(Oldval4).addReg(Oldval2).addMBB(sinkMBB);
- BB->addSuccessor(sinkMBB);
- BB->addSuccessor(loop2MBB);
// loop2MBB:
// and tmp6,oldval3,mask2
.addReg(Tmp7).addReg(Addr).addImm(0);
BuildMI(BB, dl, TII->get(Mips::BEQ))
.addReg(Tmp10).addReg(Mips::ZERO).addMBB(loop1MBB);
- BB->addSuccessor(loop1MBB);
- BB->addSuccessor(sinkMBB);
// sinkMBB:
// srl tmp8,oldval4,shift
BuildMI(BB, dl, TII->get(Mips::SRA), Dest)
.addReg(Tmp9).addImm(ShiftImm);
- sinkMBB->addSuccessor(exitMBB);
-
MI->eraseFromParent(); // The instruction is gone now.
return exitMBB;