mirror of
https://github.com/RPCS3/llvm-mirror.git
synced 2024-10-20 19:42:54 +02:00
[fast-isel] Don't try to encode LONG_MIN using cmn instructions.
rdar://11038907 llvm-svn: 152847
This commit is contained in:
parent
3812c82b92
commit
103b276e74
@ -1384,12 +1384,16 @@ bool ARMFastISel::ARMEmitCmp(const Value *Src1Value, const Value *Src2Value,
|
||||
SrcVT == MVT::i1) {
|
||||
const APInt &CIVal = ConstInt->getValue();
|
||||
Imm = (isZExt) ? (int)CIVal.getZExtValue() : (int)CIVal.getSExtValue();
|
||||
if (Imm < 0) {
|
||||
isNegativeImm = true;
|
||||
Imm = -Imm;
|
||||
// We can't encode LONG_MIN (i.e., 0x80000000) as an immediate because
|
||||
// there is no way to represent 2147483648 as a signed 32-bit int.
|
||||
if (Imm != (int)0x80000000) {
|
||||
if (Imm < 0) {
|
||||
isNegativeImm = true;
|
||||
Imm = -Imm;
|
||||
}
|
||||
UseImm = isThumb2 ? (ARM_AM::getT2SOImmVal(Imm) != -1) :
|
||||
(ARM_AM::getSOImmVal(Imm) != -1);
|
||||
}
|
||||
UseImm = isThumb2 ? (ARM_AM::getT2SOImmVal(Imm) != -1) :
|
||||
(ARM_AM::getSOImmVal(Imm) != -1);
|
||||
}
|
||||
} else if (const ConstantFP *ConstFP = dyn_cast<ConstantFP>(Src2Value)) {
|
||||
if (SrcVT == MVT::f32 || SrcVT == MVT::f64)
|
||||
|
Loading…
Reference in New Issue
Block a user