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authorJakob Stoklund Olesen <stoklund@2pi.dk>2010-07-06 23:40:35 +0000
committerJakob Stoklund Olesen <stoklund@2pi.dk>2010-07-06 23:40:35 +0000
commitd3b376b4483d816367dd28a41bcbccede1cdcbf0 (patch)
tree917340ad8fb227b76dd09ce6630235d46118c702 /lib/CodeGen/ProcessImplicitDefs.cpp
parentd491d6ecd2debd444451f07e6e947685d1e02217 (diff)
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Remove references to INSERT_SUBREG after de-SSA
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@107732 91177308-0d34-0410-b5e6-96231b3b80d8
Diffstat (limited to 'lib/CodeGen/ProcessImplicitDefs.cpp')
-rw-r--r--lib/CodeGen/ProcessImplicitDefs.cpp15
1 files changed, 0 insertions, 15 deletions
diff --git a/lib/CodeGen/ProcessImplicitDefs.cpp b/lib/CodeGen/ProcessImplicitDefs.cpp
index 80121ca0f2..2caef08b50 100644
--- a/lib/CodeGen/ProcessImplicitDefs.cpp
+++ b/lib/CodeGen/ProcessImplicitDefs.cpp
@@ -102,21 +102,6 @@ bool ProcessImplicitDefs::runOnMachineFunction(MachineFunction &fn) {
continue;
}
- if (MI->isInsertSubreg()) {
- MachineOperand &MO = MI->getOperand(2);
- if (ImpDefRegs.count(MO.getReg())) {
- // %reg1032<def> = INSERT_SUBREG %reg1032, undef, 2
- // This is an identity copy, eliminate it now.
- if (MO.isKill()) {
- LiveVariables::VarInfo& vi = lv_->getVarInfo(MO.getReg());
- vi.removeKill(MI);
- }
- MI->eraseFromParent();
- Changed = true;
- continue;
- }
- }
-
// Eliminate %reg1032:sub<def> = COPY undef.
if (MI->isCopy() && MI->getOperand(0).getSubReg()) {
MachineOperand &MO = MI->getOperand(1);