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Diffstat (limited to 'results/classifier/deepseek-2/reasoning/mistranslation/1748296')
| -rw-r--r-- | results/classifier/deepseek-2/reasoning/mistranslation/1748296 | 17 |
1 files changed, 17 insertions, 0 deletions
diff --git a/results/classifier/deepseek-2/reasoning/mistranslation/1748296 b/results/classifier/deepseek-2/reasoning/mistranslation/1748296 new file mode 100644 index 000000000..69ec32ffc --- /dev/null +++ b/results/classifier/deepseek-2/reasoning/mistranslation/1748296 @@ -0,0 +1,17 @@ +<think> +Alright, let's tackle this bug report classification step by step. The user is reporting an issue with QEMU where using TCG (Translation Code Generator) leads to an "Invalid Opcode" exception when executing x86 BMI (Bit Manipulation Instructions) specifically the SHLX instruction. Under KVM, it works fine. + +First, I need to understand what each category means. From the given list, categories like 'mistranslation', 'assembly', 'device', etc., are possible. The bug is related to how TCG handles BMI instructions, which are part of x86's advanced features. + +The user mentioned that the problem occurs in the gen_sse function in translate.c when dealing with a VEX prefix instruction. They provided a detailed scenario where under KVM it works but fails with TCG. This suggests it's an issue within QEMU's translation layer, not the hardware emulation. + +Looking at the categories again: 'mistranslation' refers to incorrect mapping from source to target architecture, which seems fitting here since the instruction is being misdecoded. 'assembly' relates to lowering assembly code, but this is more about how TCG handles the decoding rather than generating correct assembly. + +Other categories like 'device', 'graphic', or 'network' don't apply here as the issue is purely with CPU instructions. 'hypervisor' might relate, but it's more about managing VMs rather than instruction handling. + +Therefore, since the problem stems from incorrect translation of specific x86 instructions under TCG, the most appropriate category is 'mistranslation'. +</think> + +The bug is related to incorrect decoding and handling of BMI instructions in TCG. This falls under the category where the translation layer mishandles certain instructions, leading to an invalid opcode exception. + +**Answer: mistranslation** \ No newline at end of file |