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Diffstat (limited to 'results/classifier/qwen3:32b/reasoning/instruction/1885350')
| -rw-r--r-- | results/classifier/qwen3:32b/reasoning/instruction/1885350 | 11 |
1 files changed, 11 insertions, 0 deletions
diff --git a/results/classifier/qwen3:32b/reasoning/instruction/1885350 b/results/classifier/qwen3:32b/reasoning/instruction/1885350 new file mode 100644 index 000000000..f440e3e38 --- /dev/null +++ b/results/classifier/qwen3:32b/reasoning/instruction/1885350 @@ -0,0 +1,11 @@ +<think> +Okay, let's try to figure out how to classify this bug report. The user is talking about RISC-V dynamic rounding mode not working correctly in QEMU. They provided some code and a test case. + +First, the issue is with the floating-point rounding mode in RISC-V. The code snippet shows a function gen_set_rm that checks if the current rounding mode (ctx->frm) is the same as the new rm. If they are the same, it returns early without updating. But according to the RISC-V spec, when the rm field in the instruction is 7, the rounding mode should be taken from the frm field in the fcsr register. So if the user changes the frm register but the rm is 7, the code should pick up the new frm value each time. However, in the current code, once the frm is set, if it's the same as the previous, it doesn't call the helper function again. So if the frm is changed externally (like via the fcsr register), but the instruction's rm is still 7, the code doesn't re-check the frm value because it's the same as before. That's the problem here. + +The user's test case: they set rm to 7 and change frm before each execution. The first time, since ctx->frm is different, it updates. The second time, even though frm is changed, ctx->frm is already set to the previous value, so the code skips updating. But according to the spec, every time the instruction with rm=7 is executed, it should check the current frm value. So the code is caching the frm value and not re-reading it each time the instruction is executed. That's a mistake in how the dynamic rounding mode is handled. + +Now, the categories are instruction, syscall, or runtime. The issue is about the instruction's handling of rounding mode. Since the problem is in how the instruction (with rm=7) is processed, specifically that it's not re-evaluating the frm register each time the instruction is executed, this is an instruction-related error. The code for gen_set_rm is part of the instruction decoding/emulation. So the correct category is "instruction". +</think> + +instruction \ No newline at end of file |