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Diffstat (limited to 'results/classifier/deepseek-2/reasoning/mistranslation/1815423')
| -rw-r--r-- | results/classifier/deepseek-2/reasoning/mistranslation/1815423 | 15 |
1 files changed, 15 insertions, 0 deletions
diff --git a/results/classifier/deepseek-2/reasoning/mistranslation/1815423 b/results/classifier/deepseek-2/reasoning/mistranslation/1815423 new file mode 100644 index 000000000..28399b58f --- /dev/null +++ b/results/classifier/deepseek-2/reasoning/mistranslation/1815423 @@ -0,0 +1,15 @@ +<think> +Alright, let me try to figure out how to classify this bug report. So, the user provided a detailed issue with an example C program that's behaving differently between real hardware and QEMU. The problem seems to involve floating-point numbers being cast to integers in x86_64 code. + +First, I'll look at the output differences. On real HW, casting float INFINITY to int gives -2147483648, while on QEMU it's 2147483647. Similarly, other special values like NAN are giving different integer results. This suggests that there's a problem in how QEMU is handling the conversion of floating-point numbers to integers. + +Since this is happening with TCG (Translation Coupled Guests), which is part of QEMU's user-mode translation layer, I'm thinking it might be a mistranslation issue. Mistranslation typically refers to incorrect mapping from the source architecture (x86_64 in this case) to the target instruction set or IR. + +Looking at the categories provided: mistranslation, assembly lowering, device, graphic, etc., the most fitting seems to be 'mistranslation'. The issue isn't related to devices, graphics, sockets, or networking, but rather how specific instructions are being translated. It's about the conversion logic for float to int, which is an arithmetic operation. + +Additionally, the user mentioned that this affects JavaScript calculations, specifically when using bitwise operations on undefined variables. This further points towards a fundamental issue in how certain values are handled at a low level, likely during translation rather than higher-level emulation issues. + +So, putting it all together, the bug is due to incorrect handling of float to int casts in QEMU's TCG layer, which falls under mistranslation. +</think> + +mistranslation \ No newline at end of file |