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Fix hang compiling TimberWolf (allow for islands

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of size other than 4).


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@39743 91177308-0d34-0410-b5e6-96231b3b80d8
This commit is contained in:
Dale Johannesen 2007-07-11 18:32:38 +00:00
parent 75ce010f7b
commit 5d9c4b6020
1 changed files with 7 additions and 6 deletions
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13
lib/Target/ARM/ARMConstantIslandPass.cpp
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@ -161,7 +161,7 @@ namespace {
MachineInstr *CPEMI, unsigned Disp,
bool DoDump);
bool WaterIsInRange(unsigned UserOffset, MachineBasicBlock *Water,
unsigned Disp);
CPUser &U);
bool OffsetIsInRange(unsigned UserOffset, unsigned TrialOffset,
unsigned Disp, bool NegativeOK);
bool BBIsInRange(MachineInstr *MI, MachineBasicBlock *BB, unsigned Disp);
@ -199,8 +199,8 @@ void ARMConstantIslands::verify(MachineFunction &Fn) {
/// print block size and offset information - debugging
void ARMConstantIslands::dumpBBs() {
for (unsigned J = 0, E = BBOffsets.size(); J !=E; ++J) {
DOUT << "block" << J << " offset" << BBOffsets[J] <<
" size" << BBSizes[J] << "\n";
DOUT << "block " << J << " offset " << BBOffsets[J] <<
" size " << BBSizes[J] << "\n";
}
}
@ -668,8 +668,9 @@ bool ARMConstantIslands::OffsetIsInRange(unsigned UserOffset,
/// Water (a basic block) will be in range for the specific MI.
bool ARMConstantIslands::WaterIsInRange(unsigned UserOffset,
MachineBasicBlock* Water, unsigned MaxDisp)
MachineBasicBlock* Water, CPUser &U)
{
unsigned MaxDisp = U.MaxDisp;
MachineFunction::iterator I = next(MachineFunction::iterator(Water));
unsigned CPEOffset = BBOffsets[Water->getNumber()] +
BBSizes[Water->getNumber()];
@ -678,7 +679,7 @@ bool ARMConstantIslands::WaterIsInRange(unsigned UserOffset,
// the offset of the instruction. (Currently applies only to ARM, so
// no alignment compensation attempted here.)
if (CPEOffset < UserOffset)
UserOffset += 4;
UserOffset += U.CPEMI->getOperand(2).getImm();
return OffsetIsInRange (UserOffset, CPEOffset, MaxDisp, !isThumb);
}
@ -869,7 +870,7 @@ bool ARMConstantIslands::LookForWater(CPUser &U, unsigned UserOffset,
for (std::vector<MachineBasicBlock*>::iterator IP = prior(WaterList.end()),
B = WaterList.begin();; --IP) {
MachineBasicBlock* WaterBB = *IP;
if (WaterIsInRange(UserOffset, WaterBB, U.MaxDisp)) {
if (WaterIsInRange(UserOffset, WaterBB, U)) {
if (isThumb &&
(BBOffsets[WaterBB->getNumber()] +
BBSizes[WaterBB->getNumber()])%4 != 0) {