Special handling of LEApcrel and tLEApcrel.
llvm-svn: 36504
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@ -377,6 +377,10 @@ void ARMConstantIslands::InitialFunctionScan(MachineFunction &Fn,
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// Constant pool entries can reach anything.
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if (I->getOpcode() == ARM::CONSTPOOL_ENTRY)
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continue;
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if (I->getOpcode() == ARM::tLEApcrel) {
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Bits = 8; // Taking the address of a CP entry.
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break;
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}
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assert(0 && "Unknown addressing mode for CP reference!");
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case ARMII::AddrMode1: // AM1: 8 bits << 2
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Bits = 8;
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@ -869,6 +873,13 @@ bool ARMConstantIslands::HandleConstantPoolUser(MachineFunction &Fn,
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MachineBasicBlock *NewMBB;
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// Compute this only once, it's expensive
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unsigned UserOffset = GetOffsetOf(UserMI) + (isThumb ? 4 : 8);
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// Special cases: LEApcrel and tLEApcrel are two instructions MI's. The
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// actual user is the second instruction.
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if (UserMI->getOpcode() == ARM::LEApcrel)
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UserOffset += 4;
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else if (UserMI->getOpcode() == ARM::tLEApcrel)
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UserOffset += 2;
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// See if the current entry is within range, or there is a clone of it
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// in range.
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