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authorJim Grosbach <grosbach@apple.com>2010-06-07 21:48:47 +0000
committerJim Grosbach <grosbach@apple.com>2010-06-07 21:48:47 +0000
commit723d242a958840ff8ae7e4c36801eeb9dcf24f9f (patch)
treeac5db27142d76d74e78f2ca94fccaedf7ec26d4c /llvm/lib/Target/ARM/Thumb2ITBlockPass.cpp
parent4ecf2cc5eae546861bcf614f4d12c2cd887038a5 (diff)
downloadbcm5719-llvm-723d242a958840ff8ae7e4c36801eeb9dcf24f9f.tar.gz
bcm5719-llvm-723d242a958840ff8ae7e4c36801eeb9dcf24f9f.zip
Handle dbg_value instructions (i.e., skip them) when generating IT blocks.
rdar://7797940 llvm-svn: 105557
Diffstat (limited to 'llvm/lib/Target/ARM/Thumb2ITBlockPass.cpp')
-rw-r--r--llvm/lib/Target/ARM/Thumb2ITBlockPass.cpp7
1 files changed, 4 insertions, 3 deletions
diff --git a/llvm/lib/Target/ARM/Thumb2ITBlockPass.cpp b/llvm/lib/Target/ARM/Thumb2ITBlockPass.cpp
index f36d4ef7567..065f657f5d6 100644
--- a/llvm/lib/Target/ARM/Thumb2ITBlockPass.cpp
+++ b/llvm/lib/Target/ARM/Thumb2ITBlockPass.cpp
@@ -71,8 +71,10 @@ bool Thumb2ITBlockPass::InsertITBlocks(MachineBasicBlock &MBB) {
unsigned Mask = 0, Pos = 3;
// Branches, including tricky ones like LDM_RET, need to end an IT
// block so check the instruction we just put in the block.
- while (MBBI != E && Pos &&
- (!MI->getDesc().isBranch() && !MI->getDesc().isReturn())) {
+ for (; MBBI != E && Pos &&
+ (!MI->getDesc().isBranch() && !MI->getDesc().isReturn()) ; ++MBBI) {
+ if (MBBI->isDebugValue())
+ continue;
MachineInstr *NMI = &*MBBI;
MI = NMI;
DebugLoc ndl = NMI->getDebugLoc();
@@ -83,7 +85,6 @@ bool Thumb2ITBlockPass::InsertITBlocks(MachineBasicBlock &MBB) {
else
break;
--Pos;
- ++MBBI;
}
Mask |= (1 << Pos);
// Tag along (firstcond[0] << 4) with the mask.
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