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Handle dbg_value instructions (i.e., skip them) when generating IT blocks.

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rdar://7797940

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@105557 91177308-0d34-0410-b5e6-96231b3b80d8
This commit is contained in:
Jim Grosbach 2010-06-07 21:48:47 +00:00
parent 221aec60a7
commit 8077e76f93
1 changed files with 4 additions and 3 deletions
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7
lib/Target/ARM/Thumb2ITBlockPass.cpp
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@ -71,8 +71,10 @@ bool Thumb2ITBlockPass::InsertITBlocks(MachineBasicBlock &MBB) {
unsigned Mask = 0, Pos = 3; unsigned Mask = 0, Pos = 3;
// Branches, including tricky ones like LDM_RET, need to end an IT // Branches, including tricky ones like LDM_RET, need to end an IT
// block so check the instruction we just put in the block. // block so check the instruction we just put in the block.
while (MBBI != E && Pos && for (; MBBI != E && Pos &&
(!MI->getDesc().isBranch() && !MI->getDesc().isReturn())) { (!MI->getDesc().isBranch() && !MI->getDesc().isReturn()) ; ++MBBI) {
if (MBBI->isDebugValue())
continue;
MachineInstr *NMI = &*MBBI; MachineInstr *NMI = &*MBBI;
MI = NMI; MI = NMI;
DebugLoc ndl = NMI->getDebugLoc(); DebugLoc ndl = NMI->getDebugLoc();
@ -83,7 +85,6 @@ bool Thumb2ITBlockPass::InsertITBlocks(MachineBasicBlock &MBB) {
else else
break; break;
--Pos; --Pos;
++MBBI;
} }
Mask |= (1 << Pos); Mask |= (1 << Pos);
// Tag along (firstcond[0] << 4) with the mask. // Tag along (firstcond[0] << 4) with the mask.