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authorDimitry Andric <dim@FreeBSD.org>2017-05-29 16:25:25 +0000
committerDimitry Andric <dim@FreeBSD.org>2017-05-29 16:25:25 +0000
commitab44ce3d598882e51a25eb82eb7ae6308de85ae6 (patch)
tree568d786a59d49bef961dcb9bd09d422701b9da5b /lib/CodeGen/MachineCSE.cpp
parentb5630dbadf9a2a06754194387d6b0fd9962a67f1 (diff)
Notes
Diffstat (limited to 'lib/CodeGen/MachineCSE.cpp')
-rw-r--r--lib/CodeGen/MachineCSE.cpp12
1 files changed, 6 insertions, 6 deletions
diff --git a/lib/CodeGen/MachineCSE.cpp b/lib/CodeGen/MachineCSE.cpp
index 0766f465456c9..34f6bbd59e9bf 100644
--- a/lib/CodeGen/MachineCSE.cpp
+++ b/lib/CodeGen/MachineCSE.cpp
@@ -108,12 +108,12 @@ namespace {
char MachineCSE::ID = 0;
char &llvm::MachineCSEID = MachineCSE::ID;
-INITIALIZE_PASS_BEGIN(MachineCSE, "machine-cse",
- "Machine Common Subexpression Elimination", false, false)
+INITIALIZE_PASS_BEGIN(MachineCSE, DEBUG_TYPE,
+ "Machine Common Subexpression Elimination", false, false)
INITIALIZE_PASS_DEPENDENCY(MachineDominatorTree)
INITIALIZE_PASS_DEPENDENCY(AAResultsWrapperPass)
-INITIALIZE_PASS_END(MachineCSE, "machine-cse",
- "Machine Common Subexpression Elimination", false, false)
+INITIALIZE_PASS_END(MachineCSE, DEBUG_TYPE,
+ "Machine Common Subexpression Elimination", false, false)
/// The source register of a COPY machine instruction can be propagated to all
/// its users, and this propagation could increase the probability of finding
@@ -180,8 +180,8 @@ MachineCSE::isPhysDefTriviallyDead(unsigned Reg,
I = skipDebugInstructionsForward(I, E);
if (I == E)
- // Reached end of block, register is obviously dead.
- return true;
+ // Reached end of block, we don't know if register is dead or not.
+ return false;
bool SeenDef = false;
for (const MachineOperand &MO : I->operands()) {