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Diffstat (limited to 'results/classifier/qwen3:32b/reasoning/instruction/1748296')
| -rw-r--r-- | results/classifier/qwen3:32b/reasoning/instruction/1748296 | 11 |
1 files changed, 11 insertions, 0 deletions
diff --git a/results/classifier/qwen3:32b/reasoning/instruction/1748296 b/results/classifier/qwen3:32b/reasoning/instruction/1748296 new file mode 100644 index 000000000..ef7ee65fe --- /dev/null +++ b/results/classifier/qwen3:32b/reasoning/instruction/1748296 @@ -0,0 +1,11 @@ +<think> +Okay, let's see. The user is reporting an issue with QEMU's TCG (Tiny Code Generator) where it throws an invalid opcode error when executing the x86 BMI shlx instruction. They mentioned that the problem is related to decoding the 2-byte VEX prefix for BMI instructions. The code in translate.c's gen_sse function goes to the do_0f_38_fx label, but since the 'b' variable doesn't match the expected values (like 0x1f7, etc.), it defaults to an invalid opcode. However, when using KVM, it works correctly. + +First, I need to classify this bug into one of the three categories: instruction, syscall, or runtime. + +The issue is clearly related to the execution of a specific x86 instruction (shlx), which is part of the BMI instruction set. The problem arises because TCG is not correctly decoding or handling this instruction. The user provided a repro and explained that the decoding logic in translate.c isn't handling the VEX prefix correctly for BMI instructions. Since this is about the correct handling of an instruction, it's likely an 'instruction' category bug. + +The other categories don't fit here. It's not a syscall, as there's no mention of system calls being involved. The problem isn't about runtime in the general sense, like memory management or threading, but specifically about the instruction decoding and execution. Therefore, the correct classification is 'instruction'. +</think> + +instruction \ No newline at end of file |