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authorDale Johannesen <dalej@apple.com>2010-03-05 00:02:59 +0000
committerDale Johannesen <dalej@apple.com>2010-03-05 00:02:59 +0000
commitb0812f114b83a32c4b90a4b553c7177c557558b5 (patch)
tree24518a64cc329d5dbb4ae5cd2e75d5ff7d7ab76c /lib/CodeGen/CriticalAntiDepBreaker.cpp
parente1d50cd5e4ff7f4d977cc8bda720a58737e7cf8d (diff)
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Fix some more places where dbg_value affected codegen.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@97765 91177308-0d34-0410-b5e6-96231b3b80d8
Diffstat (limited to 'lib/CodeGen/CriticalAntiDepBreaker.cpp')
-rw-r--r--lib/CodeGen/CriticalAntiDepBreaker.cpp4
1 files changed, 4 insertions, 0 deletions
diff --git a/lib/CodeGen/CriticalAntiDepBreaker.cpp b/lib/CodeGen/CriticalAntiDepBreaker.cpp
index 056e2d5b01..7d3de89ada 100644
--- a/lib/CodeGen/CriticalAntiDepBreaker.cpp
+++ b/lib/CodeGen/CriticalAntiDepBreaker.cpp
@@ -119,6 +119,8 @@ void CriticalAntiDepBreaker::FinishBlock() {
void CriticalAntiDepBreaker::Observe(MachineInstr *MI, unsigned Count,
unsigned InsertPosIndex) {
+ if (MI->isDebugValue())
+ return;
assert(Count < InsertPosIndex && "Instruction index out of expected range!");
// Any register which was defined within the previous scheduling region
@@ -409,6 +411,8 @@ BreakAntiDependencies(std::vector<SUnit>& SUnits,
for (MachineBasicBlock::iterator I = End, E = Begin;
I != E; --Count) {
MachineInstr *MI = --I;
+ if (MI->isDebugValue())
+ continue;
// Check if this instruction has a dependence on the critical path that
// is an anti-dependence that we may be able to break. If it is, set