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Diffstat (limited to 'results/classifier/deepseek-2-tmp/reasoning/mistranslation/2386')
| -rw-r--r-- | results/classifier/deepseek-2-tmp/reasoning/mistranslation/2386 | 19 |
1 files changed, 19 insertions, 0 deletions
diff --git a/results/classifier/deepseek-2-tmp/reasoning/mistranslation/2386 b/results/classifier/deepseek-2-tmp/reasoning/mistranslation/2386 new file mode 100644 index 00000000..40de1304 --- /dev/null +++ b/results/classifier/deepseek-2-tmp/reasoning/mistranslation/2386 @@ -0,0 +1,19 @@ +<think> +Okay, so I'm trying to classify this bug report for QEMU. Let's read through it carefully. + +The issue is with the RISCV instruction SLL (and possibly others) producing incorrect results. The user provided a code snippet where they're using the SLL instruction in an assembly operation. When they run their program under QEMU, the output doesn't match what's expected based on the RISC-V ISA manual. + +Looking at the problem description, it seems that instead of shifting left by the specified amount (from the lower 5 bits), QEMU is doing an extra shift. The correct result should be 'b4d6868655c35850', but QEMU gives '55c3585000000000'. That looks like a left shift by more than intended because the bits are moving further to the left, losing some higher-order bits. + +The user's C code uses the SLL instruction and shows that the result is incorrect. They have steps to reproduce, compiling with a specific GCC command and running under QEMU. The output shows that the actual result has zeros in higher positions where it shouldn't, indicating an extra 32-bit shift was applied. + +Now, looking at the possible categories: mistranslation refers to incorrect semantic mapping from source architecture to IR or target. Since SLL is an instruction in RISC-V (the source) and QEMU likely translates it incorrectly when emulating, this seems like a mistranslation issue. + +Other possibilities: Could it be an assembly lowering issue? Maybe, but mistranslation is more specific here because it's about how the instruction is handled during translation. Performance or other categories don't fit as well because it's a functional bug, not a performance one. + +So I think the correct category is 'mistranslation'. +</think> + +The problem lies in how QEMU translates the RISC-V SLL instruction into its target architecture's operations. The incorrect result suggests that the translation logic for this specific instruction isn't handling the shift correctly, leading to an extra 32-bit shift being applied. + +**Category: mistranslation** \ No newline at end of file |