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Adding the missing implementation of Bitfield's "clear" and "insert". 

Fixing http://llvm.org/bugs/show_bug.cgi?id=7222.

llvm-svn: 104653
This commit is contained in:
Shih-wei Liao 2010-05-26 00:25:05 +00:00
parent e22abfa823
commit b6e0bc9457
1 changed files with 9 additions and 4 deletions
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13
llvm/lib/Target/ARM/ARMCodeEmitter.cpp
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@ -781,10 +781,6 @@ void ARMCodeEmitter::emitDataProcessingInstruction(const MachineInstr &MI,
unsigned ImplicitRn) {
const TargetInstrDesc &TID = MI.getDesc();
if (TID.Opcode == ARM::BFC) {
report_fatal_error("ARMv6t2 JIT is not yet supported.");
}
// Part of binary is determined by TableGn.
unsigned Binary = getBinaryCodeForInstr(MI);
@ -820,6 +816,15 @@ void ARMCodeEmitter::emitDataProcessingInstruction(const MachineInstr &MI,
Binary |= ((Hi16 >> 12) & 0xF) << 16;
emitWordLE(Binary);
return;
} else if((TID.Opcode == ARM::BFC) || (TID.Opcode == ARM::BFI)) {
uint32_t v = ~MI.getOperand(2).getImm();
int32_t lsb = CountTrailingZeros_32(v);
int32_t msb = (32 - CountLeadingZeros_32(v)) - 1;
// Insts[20-16] = msb, Insts[11-7] = lsb
Binary |= (msb & 0x1F) << 16;
Binary |= (lsb & 0x1F) << 7;
emitWordLE(Binary);
return;
}
// If this is a two-address operand, skip it. e.g. MOVCCr operand 1.