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Diffstat (limited to 'llvm/lib/Target/RISCV/Disassembler/RISCVDisassembler.cpp')
-rw-r--r--llvm/lib/Target/RISCV/Disassembler/RISCVDisassembler.cpp18
1 files changed, 18 insertions, 0 deletions
diff --git a/llvm/lib/Target/RISCV/Disassembler/RISCVDisassembler.cpp b/llvm/lib/Target/RISCV/Disassembler/RISCVDisassembler.cpp
index 69afa4b9831..d5b8b389ae3 100644
--- a/llvm/lib/Target/RISCV/Disassembler/RISCVDisassembler.cpp
+++ b/llvm/lib/Target/RISCV/Disassembler/RISCVDisassembler.cpp
@@ -212,6 +212,15 @@ static DecodeStatus decodeUImmOperand(MCInst &Inst, uint64_t Imm,
}
template <unsigned N>
+static DecodeStatus decodeUImmNonZeroOperand(MCInst &Inst, uint64_t Imm,
+ int64_t Address,
+ const void *Decoder) {
+ if (Imm == 0)
+ return MCDisassembler::Fail;
+ return decodeUImmOperand<N>(Inst, Imm, Address, Decoder);
+}
+
+template <unsigned N>
static DecodeStatus decodeSImmOperand(MCInst &Inst, uint64_t Imm,
int64_t Address, const void *Decoder) {
assert(isUInt<N>(Imm) && "Invalid immediate");
@@ -222,6 +231,15 @@ static DecodeStatus decodeSImmOperand(MCInst &Inst, uint64_t Imm,
}
template <unsigned N>
+static DecodeStatus decodeSImmNonZeroOperand(MCInst &Inst, uint64_t Imm,
+ int64_t Address,
+ const void *Decoder) {
+ if (Imm == 0)
+ return MCDisassembler::Fail;
+ return decodeSImmOperand<N>(Inst, Imm, Address, Decoder);
+}
+
+template <unsigned N>
static DecodeStatus decodeSImmOperandAndLsl1(MCInst &Inst, uint64_t Imm,
int64_t Address,
const void *Decoder) {
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