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Add a missing case to duplicateCPV() for LSDA constants. Add a FIXME. rdar://8302157

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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@113637 91177308-0d34-0410-b5e6-96231b3b80d8
This commit is contained in:
Jim Grosbach 2010-09-10 21:38:22 +00:00
parent 4e9c939312
commit 51f5b67395
1 changed files with 8 additions and 0 deletions
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8
lib/Target/ARM/ARMBaseInstrInfo.cpp
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@ -922,6 +922,11 @@ static unsigned duplicateCPV(MachineFunction &MF, unsigned &CPI) {
unsigned PCLabelId = AFI->createConstPoolEntryUId();
ARMConstantPoolValue *NewCPV = 0;
// FIXME: The below assumes PIC relocation model and that the function
// is Thumb mode (t1 or t2). PCAdjustment would be 8 for ARM mode PIC, and
// zero for non-PIC in ARM or Thumb. The callers are all of thumb LDR
// instructions, so that's probably OK, but is PIC always correct when
// we get here?
if (ACPV->isGlobalValue())
NewCPV = new ARMConstantPoolValue(ACPV->getGV(), PCLabelId,
ARMCP::CPValue, 4);
@ -931,6 +936,9 @@ static unsigned duplicateCPV(MachineFunction &MF, unsigned &CPI) {
else if (ACPV->isBlockAddress())
NewCPV = new ARMConstantPoolValue(ACPV->getBlockAddress(), PCLabelId,
ARMCP::CPBlockAddress, 4);
else if (ACPV->isLSDA())
NewCPV = new ARMConstantPoolValue(MF.getFunction(), PCLabelId,
ARMCP::CPLSDA, 4);
else
llvm_unreachable("Unexpected ARM constantpool value type!!");
CPI = MCP->getConstantPoolIndex(NewCPV, MCPE.getAlignment());