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-rw-r--r--llvm/lib/Target/AMDGPU/Disassembler/AMDGPUDisassembler.cpp5
1 files changed, 4 insertions, 1 deletions
diff --git a/llvm/lib/Target/AMDGPU/Disassembler/AMDGPUDisassembler.cpp b/llvm/lib/Target/AMDGPU/Disassembler/AMDGPUDisassembler.cpp
index 75356e9a9d3..9732d11adee 100644
--- a/llvm/lib/Target/AMDGPU/Disassembler/AMDGPUDisassembler.cpp
+++ b/llvm/lib/Target/AMDGPU/Disassembler/AMDGPUDisassembler.cpp
@@ -246,7 +246,10 @@ DecodeStatus AMDGPUDisassembler::getInstruction(MCInst &MI, uint64_t &Size,
if (Res && IsSDWA)
Res = convertSDWAInst(MI);
- Size = Res ? (MaxInstBytesNum - Bytes.size()) : 0;
+ // if the opcode was not recognized we'll assume a Size of 4 bytes
+ // (unless there are fewer bytes left)
+ Size = Res ? (MaxInstBytesNum - Bytes.size())
+ : std::min((size_t)4, Bytes_.size());
return Res;
}
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