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-rw-r--r--lib/Target/ARM/AsmParser/ARMAsmParser.cpp30
1 files changed, 30 insertions, 0 deletions
diff --git a/lib/Target/ARM/AsmParser/ARMAsmParser.cpp b/lib/Target/ARM/AsmParser/ARMAsmParser.cpp
index 1c109f0..9852cc8 100644
--- a/lib/Target/ARM/AsmParser/ARMAsmParser.cpp
+++ b/lib/Target/ARM/AsmParser/ARMAsmParser.cpp
@@ -1222,6 +1222,22 @@ public:
(Value >= 0x01ff && Value <= 0xffff && (Value & 0xff) == 0xff) ||
(Value >= 0x01ffff && Value <= 0xffffff && (Value & 0xffff) == 0xffff);
}
+ bool isNEONi32vmovNeg() const {
+ if (Kind != k_Immediate)
+ return false;
+ const MCConstantExpr *CE = dyn_cast<MCConstantExpr>(getImm());
+ // Must be a constant.
+ if (!CE) return false;
+ int64_t Value = ~CE->getValue();
+ // i32 value with set bits only in one byte X000, 0X00, 00X0, or 000X,
+ // for VMOV/VMVN only, 00Xf or 0Xff are also accepted.
+ return (Value >= 0 && Value < 256) ||
+ (Value >= 0x0100 && Value <= 0xff00) ||
+ (Value >= 0x010000 && Value <= 0xff0000) ||
+ (Value >= 0x01000000 && Value <= 0xff000000) ||
+ (Value >= 0x01ff && Value <= 0xffff && (Value & 0xff) == 0xff) ||
+ (Value >= 0x01ffff && Value <= 0xffffff && (Value & 0xffff) == 0xffff);
+ }
bool isNEONi64splat() const {
if (Kind != k_Immediate)
@@ -1825,6 +1841,20 @@ public:
Inst.addOperand(MCOperand::CreateImm(Value));
}
+ void addNEONi32vmovNegOperands(MCInst &Inst, unsigned N) const {
+ assert(N == 1 && "Invalid number of operands!");
+ // The immediate encodes the type of constant as well as the value.
+ const MCConstantExpr *CE = dyn_cast<MCConstantExpr>(getImm());
+ unsigned Value = ~CE->getValue();
+ if (Value >= 256 && Value <= 0xffff)
+ Value = (Value >> 8) | ((Value & 0xff) ? 0xc00 : 0x200);
+ else if (Value > 0xffff && Value <= 0xffffff)
+ Value = (Value >> 16) | ((Value & 0xff) ? 0xd00 : 0x400);
+ else if (Value > 0xffffff)
+ Value = (Value >> 24) | 0x600;
+ Inst.addOperand(MCOperand::CreateImm(Value));
+ }
+
void addNEONi64splatOperands(MCInst &Inst, unsigned N) const {
assert(N == 1 && "Invalid number of operands!");
// The immediate encodes the type of constant as well as the value.