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Diffstat (limited to 'results/classifier/deepseek-2/reasoning/mistranslation/2474')
| -rw-r--r-- | results/classifier/deepseek-2/reasoning/mistranslation/2474 | 17 |
1 files changed, 17 insertions, 0 deletions
diff --git a/results/classifier/deepseek-2/reasoning/mistranslation/2474 b/results/classifier/deepseek-2/reasoning/mistranslation/2474 new file mode 100644 index 000000000..f85e5bdf3 --- /dev/null +++ b/results/classifier/deepseek-2/reasoning/mistranslation/2474 @@ -0,0 +1,17 @@ +<think> +Okay, so I need to classify this bug report for QEMU. The user provided a detailed issue regarding the translation of the "vpgatherqq" instruction in x86_64. Let me break down what's going on. + +First, the problem is about incorrect translation of an assembly instruction into micro-ops when using QEMU. Specifically, the instruction involves vector registers (xmm2, xmm3, etc.), and there's an issue with how their offsets are being calculated in the code. + +Looking at the steps to reproduce, they're compiling a C program with inline assembly that uses "vpgatherqq" with different XMM registers as operands. Then, when running under QEMU with debugging options, the output shows incorrect offsets for these registers. The user noticed that the offset for xmm4 is wrong—it should follow an arithmetic sequence but isn't. + +The error seems to be in how the LEA (Load Effective Address) instruction is being handled in the translate.c file, specifically around line 2215. The code mistakenly sets index= -1 when it shouldn't, leading to incorrect offsets for certain registers like xmm4. + +So, this issue falls under the category of translation problems because it's related to how QEMU translates x86_64 instructions into the target architecture (in this case, possibly another instruction set or micro-ops). The problem arises during assembly lowering, which is part of the process where higher-level instructions are converted into lower-level operations for execution. + +Given the categories provided, "mistranslation" seems to fit because it's about incorrect mapping from source to target. Alternatively, it could be related to "assembly lowering," but since the primary issue is the incorrect translation leading to wrong offsets, "mistranslation" is more appropriate. +</think> + +The bug report describes an issue with how QEMU translates the x86_64 instruction "vpgatherqq." The problem lies in the translation process where certain registers (like xmm4) are assigned incorrect memory offsets due to a flaw in the LEA handling code. This directly impacts the correct mapping of source architecture instructions to the target, causing the observed misbehavior. + +**Category: mistranslation** \ No newline at end of file |