diff options
Diffstat (limited to 'results/classifier/mode-deepseek-r1:32b/reasoning/user/2089')
| -rw-r--r-- | results/classifier/mode-deepseek-r1:32b/reasoning/user/2089 | 17 |
1 files changed, 17 insertions, 0 deletions
diff --git a/results/classifier/mode-deepseek-r1:32b/reasoning/user/2089 b/results/classifier/mode-deepseek-r1:32b/reasoning/user/2089 new file mode 100644 index 00000000..d8ee493a --- /dev/null +++ b/results/classifier/mode-deepseek-r1:32b/reasoning/user/2089 @@ -0,0 +1,17 @@ +<think> +Okay, so I need to classify this bug report about the `sqshrn` instruction in qemu-aarch64 as either 'user' or 'system'-mode related. Let's break it down. + +The problem occurs when running inline_asm_tests with qemu-aarch64, where two specific tests fail. The tests involve signed saturating shifts on 16-bit integers. In real hardware, these tests pass, but under QEMU they fail, showing incorrect results for `res1` and `res3`. + +First, I think about what the `sqshrn` instruction does. It's an AArch64 SIMD instruction used for signed saturating shift right narrow operations. This means it's handling vector operations on integers, specifically dealing with overflow by clamping values to the minimum or maximum representable value. + +The tests are part of user-mode code since they're in a test suite that uses inline assembly within a user-space application. The issue arises when executing this user-space code under QEMU. Since the problem doesn't involve system calls, device drivers, or kernel operations, it's more likely related to how QEMU emulates the CPU instructions. + +QEMU handles both user-mode and system-mode emulation. User-mode involves running applications (like these tests) without requiring a full OS, while system-mode would handle lower-level aspects like hardware devices or the kernel. Since this is about an instruction that should be correctly handled in user-space code execution, it's probably a user-mode issue. + +Moreover, if the problem were with system-mode components, we might see issues related to device emulation, interrupts, or hypervisor functions. But here, the failure is specific to an arithmetic operation within the test application, which doesn't interact with hardware beyond the CPU. + +So putting it all together, the bug seems to be in QEMU's user-mode emulation of the `sqshrn` instruction, causing incorrect results compared to real hardware. +</think> + +user \ No newline at end of file |