From a4c19d68f13cf0a83bc0da53bd6d547fcaf635fe Mon Sep 17 00:00:00 2001
From: ed <ed@FreeBSD.org>
Date: Mon, 22 Jun 2009 08:08:12 +0000
Subject: Update LLVM sources to r73879.
---
lib/CodeGen/LiveVariables.cpp | 13 ++++++-------
1 file changed, 6 insertions(+), 7 deletions(-)
(limited to 'lib/CodeGen/LiveVariables.cpp')
diff --git a/lib/CodeGen/LiveVariables.cpp b/lib/CodeGen/LiveVariables.cpp
index 6228821..bd84508 100644
--- a/lib/CodeGen/LiveVariables.cpp
+++ b/lib/CodeGen/LiveVariables.cpp
@@ -359,12 +359,11 @@ bool LiveVariables::HandlePhysRegKill(unsigned Reg, MachineInstr *MI) {
// That is, unless we are currently processing the last reference itself.
LastRefOrPartRef->addRegisterDead(Reg, TRI, true);
- /* Partial uses. Mark register def dead and add implicit def of
- sub-registers which are used.
- FIXME: LiveIntervalAnalysis can't handle this yet!
- EAX<dead> = op AL<imp-def>
- That is, EAX def is dead but AL def extends pass it.
- Enable this after live interval analysis is fixed to improve codegen!
+ // Partial uses. Mark register def dead and add implicit def of
+ // sub-registers which are used.
+ // EAX<dead> = op AL<imp-def>
+ // That is, EAX def is dead but AL def extends pass it.
+ // Enable this after live interval analysis is fixed to improve codegen!
else if (!PhysRegUse[Reg]) {
PhysRegDef[Reg]->addRegisterDead(Reg, TRI, true);
for (const unsigned *SubRegs = TRI->getSubRegisters(Reg);
@@ -377,7 +376,7 @@ bool LiveVariables::HandlePhysRegKill(unsigned Reg, MachineInstr *MI) {
PartUses.erase(*SS);
}
}
- } */
+ }
else
LastRefOrPartRef->addRegisterKilled(Reg, TRI, true);
return true;
--
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