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Add a bool flag to StackObjects telling whether they reference spill

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slots.  The AsmPrinter will use this information to determine whether to
print a spill/reload comment.

Remove default argument values.  It's too easy to pass a wrong argument
value when multiple arguments have default values.  Make everything
explicit to trap bugs early.

Update all targets to adhere to the new interfaces..


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@87022 91177308-0d34-0410-b5e6-96231b3b80d8
This commit is contained in:
David Greene
2009-11-12 20:49:22 +00:00
parent 05872ea804
commit 3f2bf85d14
28 changed files with 172 additions and 103 deletions
Download Patch File Download Diff File Expand all files Collapse all files
lib/CodeGen/VirtRegMap.cpp
+4 -4
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@@ -117,8 +117,8 @@ int VirtRegMap::assignVirt2StackSlot(unsigned virtReg) {
assert(Virt2StackSlotMap[virtReg] == NO_STACK_SLOT &&
"attempt to assign stack slot to already spilled register");
const TargetRegisterClass* RC = MF->getRegInfo().getRegClass(virtReg);
int SS = MF->getFrameInfo()->CreateStackObject(RC->getSize(),
RC->getAlignment(), /*isSS*/true);
int SS = MF->getFrameInfo()->CreateSpillStackObject(RC->getSize(),
RC->getAlignment());
if (LowSpillSlot == NO_STACK_SLOT)
LowSpillSlot = SS;
if (HighSpillSlot == NO_STACK_SLOT || SS > HighSpillSlot)
@@ -161,8 +161,8 @@ int VirtRegMap::getEmergencySpillSlot(const TargetRegisterClass *RC) {
EmergencySpillSlots.find(RC);
if (I != EmergencySpillSlots.end())
return I->second;
int SS = MF->getFrameInfo()->CreateStackObject(RC->getSize(),
RC->getAlignment(), /*isSS*/true);
int SS = MF->getFrameInfo()->CreateSpillStackObject(RC->getSize(),
RC->getAlignment());
if (LowSpillSlot == NO_STACK_SLOT)
LowSpillSlot = SS;
if (HighSpillSlot == NO_STACK_SLOT || SS > HighSpillSlot)