diff options
Diffstat (limited to 'results/classifier/deepseek-2/reasoning/mistranslation/1821515')
| -rw-r--r-- | results/classifier/deepseek-2/reasoning/mistranslation/1821515 | 19 |
1 files changed, 19 insertions, 0 deletions
diff --git a/results/classifier/deepseek-2/reasoning/mistranslation/1821515 b/results/classifier/deepseek-2/reasoning/mistranslation/1821515 new file mode 100644 index 000000000..7a36aba98 --- /dev/null +++ b/results/classifier/deepseek-2/reasoning/mistranslation/1821515 @@ -0,0 +1,19 @@ +<think> +Okay, so I need to classify this bug report from QEMU into one of the given categories. Let me start by reading through the problem carefully. + +The issue is with QEMU's PowerPC (qemu-ppc) user-mode incorrectly converting a float NaN to a double non-NaN. The reporter provided a minimal reproducer in C that demonstrates the problem. When they run this code under QEMU, it produces incorrect output where the comparison between two NaNs returns "True" instead of "False". On the correct execution (without QEMU), the comparison correctly returns "False". + +The key point here is that QEMU's conversion from float to double isn't preserving the NaN value. Instead, it's converting it into a normalized number, which causes incorrect behavior in comparisons. + +Now, looking at the possible categories: mistranslation refers to issues where the semantics are incorrectly mapped between the source architecture and the target or IR. Since this is happening in user-mode (as per the bug report), it suggests that there's an issue during the translation process of PPC code to the host's instruction set. + +The problem seems to be related to how floats are handled, specifically NaNs. This isn't a case where assembly lowering went wrong because it's more about the semantic handling rather than generating incorrect machine code. It also doesn't fit into categories like device, graphic, socket, etc., as those relate to specific hardware or system calls. + +The issue is in user-mode translation, so it's not a kernel or hypervisor problem. It doesn't involve performance, permissions, or other listed categories either. Therefore, the most fitting category here is "mistranslation". +</think> + +The bug report indicates that QEMU-PPC incorrectly converts a float NaN to a double non-NaN during user-mode execution. This semantic error occurs when translating PPC instructions to the host architecture, leading to incorrect comparison results. The issue falls under the category of mistranslation because it involves an incorrect mapping between the source and target architectures. + +**Answer:** + +mistranslation \ No newline at end of file |