diff options
Diffstat (limited to 'results/classifier/deepseek-2-tmp/reasoning/mistranslation/1916269')
| -rw-r--r-- | results/classifier/deepseek-2-tmp/reasoning/mistranslation/1916269 | 13 |
1 files changed, 13 insertions, 0 deletions
diff --git a/results/classifier/deepseek-2-tmp/reasoning/mistranslation/1916269 b/results/classifier/deepseek-2-tmp/reasoning/mistranslation/1916269 new file mode 100644 index 000000000..f4a4642e8 --- /dev/null +++ b/results/classifier/deepseek-2-tmp/reasoning/mistranslation/1916269 @@ -0,0 +1,13 @@ +<think> +Okay, I need to classify this bug report into one of the given categories for QEMU. Let me read through the details carefully. + +The issue is about TCG raising an exception on the SSE4.2 CRC32 instruction when running FreeBSD under QEMU 5.2 with TCG acceleration and a Nehalem CPU. The problem doesn't occur with KVM or the default CPU, which don't support SSE4.2. + +Looking at the code provided, there's a check in target/i386/tcg/translate.c:3067 where if the TS bit (HF_TS_MASK) is set, it raises an exception for MMX/SSE operations. However, according to Intel's documentation, CRC32 should work regardless of the TS bit. + +So, QEMU is incorrectly handling this instruction by raising an exception when it shouldn't. This seems related to how TCG translates the instruction into the target architecture or IR. It's about incorrect semantic mapping because the translation logic isn't accounting for the specific behavior of the CRC32 instruction correctly. + +The categories are mistranslation, assembly lowering, etc. Since this is a problem with how TCG (which deals with translating instructions) handles the instruction, it falls under 'mistranslation'. +</think> + +mistranslation \ No newline at end of file |