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Eliminate data relocations by using NULL instead of global empty list.

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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@29250 91177308-0d34-0410-b5e6-96231b3b80d8
This commit is contained in:
Jim Laskey
2006-07-21 21:15:20 +00:00
parent 60f09928a0
commit cd4317efcf
6 changed files with 50 additions and 37 deletions
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16
lib/CodeGen/LiveVariables.cpp
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@ -239,9 +239,11 @@ bool LiveVariables::runOnMachineFunction(MachineFunction &MF) {
NumOperandsToProcess = 1;
// Loop over implicit uses, using them.
for (const unsigned *ImplicitUses = MID.ImplicitUses;
*ImplicitUses; ++ImplicitUses)
HandlePhysRegUse(*ImplicitUses, MI);
if (MID.ImplicitUses) {
for (const unsigned *ImplicitUses = MID.ImplicitUses;
*ImplicitUses; ++ImplicitUses)
HandlePhysRegUse(*ImplicitUses, MI);
}
// Process all explicit uses...
for (unsigned i = 0; i != NumOperandsToProcess; ++i) {
@ -257,9 +259,11 @@ bool LiveVariables::runOnMachineFunction(MachineFunction &MF) {
}
// Loop over implicit defs, defining them.
for (const unsigned *ImplicitDefs = MID.ImplicitDefs;
*ImplicitDefs; ++ImplicitDefs)
HandlePhysRegDef(*ImplicitDefs, MI);
if (MID.ImplicitDefs) {
for (const unsigned *ImplicitDefs = MID.ImplicitDefs;
*ImplicitDefs; ++ImplicitDefs)
HandlePhysRegDef(*ImplicitDefs, MI);
}
// Process all explicit defs...
for (unsigned i = 0; i != NumOperandsToProcess; ++i) {