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Diffstat (limited to 'results/classifier/deepseek-2-tmp/reasoning/mistranslation/1796520')
| -rw-r--r-- | results/classifier/deepseek-2-tmp/reasoning/mistranslation/1796520 | 21 |
1 files changed, 21 insertions, 0 deletions
diff --git a/results/classifier/deepseek-2-tmp/reasoning/mistranslation/1796520 b/results/classifier/deepseek-2-tmp/reasoning/mistranslation/1796520 new file mode 100644 index 000000000..0e02f471f --- /dev/null +++ b/results/classifier/deepseek-2-tmp/reasoning/mistranslation/1796520 @@ -0,0 +1,21 @@ +<think> +Okay, so I have to classify this bug report from QEMU into one of the given categories. Let's see what information I have here. + +The user reported that when they run "autogen --help" on qemu-sh4-user after a specific commit (61dedf2af7), it crashes with an "Unhandled trap: 0x180". The backtrace shows various register values, but the important part is understanding why this crash happened. + +Looking at the bisecting result, they found that the first bad commit was 61dedf2af7. The commit message says: "target/sh4: Add missing FPSCR.PR == 0 checks." So Richard Henderson added some checks for when PR (probably the Program Register) is zero in the FPSCR (Floating Point Status and Control Register). He mentions that both frchg and fschg require PR == 0, otherwise it's an undefined operation. + +So, the bug seems to be related to floating-point operations. When these instructions are executed without PR being zero, it causes a trap, leading to the crash in autogen. Since autogen is part of QEMU and deals with code generation (probably for the target architecture), this issue would affect how user-mode SH4 code runs. + +Now, looking at the possible categories: mistranslation, assembly lowering, device, graphic, socket, network, KVM, boot, vnc, debug, files, permissions, performance, kernel, peripherals, hypervisor. I need to choose one that best fits this bug. + +The problem is about incorrect checks in handling floating-point operations. The commit added checks for PR == 0 where they were missing, and without those checks, the code caused a crash when these instructions were executed. This seems related to how QEMU translates user-mode SH4 assembly into the target (probably host) architecture's instructions or IR. + +"Mistranslation" refers to incorrect semantic mapping from source architecture to IR/target. Since the issue is in handling the floating-point state (PR register), which affects how operations are translated, it likely falls under mistranslation. + +Alternatively, "assembly lowering" could be a possibility since it involves converting higher-level operations into machine code, but I think "mistranslation" is more precise here because it's about ensuring that certain conditions (like PR == 0) are correctly handled during the translation process. The crash suggests that without these checks, the translated code behaves incorrectly. + +Other categories like device or network don't seem relevant here since this is a user-mode issue related to instruction handling, not hardware devices or networking. +</think> + +mistranslation \ No newline at end of file |