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Handle dbg_value instructions (i.e., skip them) when generating IT blocks.
rdar://7797940 git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@105557 91177308-0d34-0410-b5e6-96231b3b80d8
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@ -71,8 +71,10 @@ bool Thumb2ITBlockPass::InsertITBlocks(MachineBasicBlock &MBB) {
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unsigned Mask = 0, Pos = 3;
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// Branches, including tricky ones like LDM_RET, need to end an IT
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// block so check the instruction we just put in the block.
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while (MBBI != E && Pos &&
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(!MI->getDesc().isBranch() && !MI->getDesc().isReturn())) {
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for (; MBBI != E && Pos &&
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(!MI->getDesc().isBranch() && !MI->getDesc().isReturn()) ; ++MBBI) {
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if (MBBI->isDebugValue())
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continue;
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MachineInstr *NMI = &*MBBI;
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MI = NMI;
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DebugLoc ndl = NMI->getDebugLoc();
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@ -83,7 +85,6 @@ bool Thumb2ITBlockPass::InsertITBlocks(MachineBasicBlock &MBB) {
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else
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break;
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--Pos;
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++MBBI;
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}
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Mask |= (1 << Pos);
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// Tag along (firstcond[0] << 4) with the mask.
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