diff options
Diffstat (limited to 'llvm/lib')
| -rw-r--r-- | llvm/lib/Target/ARM/ARMInstrThumb2.td | 4 |
1 files changed, 3 insertions, 1 deletions
diff --git a/llvm/lib/Target/ARM/ARMInstrThumb2.td b/llvm/lib/Target/ARM/ARMInstrThumb2.td index 557099590c3..45ab65580d4 100644 --- a/llvm/lib/Target/ARM/ARMInstrThumb2.td +++ b/llvm/lib/Target/ARM/ARMInstrThumb2.td @@ -111,7 +111,9 @@ def t2_so_imm_notSext : Operand<i32>, PatLeaf<(imm), [{ // t2_so_imm_neg - Match an immediate that is a negation of a t2_so_imm. def t2_so_imm_neg_asmoperand : AsmOperandClass { let Name = "T2SOImmNeg"; } def t2_so_imm_neg : Operand<i32>, PatLeaf<(imm), [{ - int64_t Value = -(int)N->getZExtValue(); + int64_t Value = N->getZExtValue(); + if (Value == 1LL<<31) return false; // INT_MIN cannot be negated + Value = -(int)Value; return Value && ARM_AM::getT2SOImmVal(Value) != -1; }], t2_so_imm_neg_XFORM> { let ParserMatchClass = t2_so_imm_neg_asmoperand; |
