diff options
| author | Christian Krinitsin <mail@krinitsin.com> | 2025-07-05 20:00:38 +0200 |
|---|---|---|
| committer | Christian Krinitsin <mail@krinitsin.com> | 2025-07-05 20:00:38 +0200 |
| commit | 96049c939b1916d80532630d63c14e04d5244f1d (patch) | |
| tree | 7fb9df428f074078e714f1e038210cdff887185a /results/classifier/user-mode-bugs/2089 | |
| parent | 40bbb77d4dfebff4f99c2f90b2c0db737b0ecc5a (diff) | |
| download | qemu-analysis-96049c939b1916d80532630d63c14e04d5244f1d.tar.gz qemu-analysis-96049c939b1916d80532630d63c14e04d5244f1d.zip | |
lock user-mode and semantic-bugs
Diffstat (limited to 'results/classifier/user-mode-bugs/2089')
| -rw-r--r-- | results/classifier/user-mode-bugs/2089 | 29 |
1 files changed, 29 insertions, 0 deletions
diff --git a/results/classifier/user-mode-bugs/2089 b/results/classifier/user-mode-bugs/2089 new file mode 100644 index 000000000..fac9e1d6f --- /dev/null +++ b/results/classifier/user-mode-bugs/2089 @@ -0,0 +1,29 @@ + + +aarch64: incorrect emulation of sqshrn instruction +Description of problem: +`sqshrn` instruction test fails with qemu-aarch64, but passes on real aarch64 hardware. +Steps to reproduce: +1. Build [inline_asm_tests](https://cs.android.com/android/platform/superproject/main/+/main:frameworks/libs/binary_translation/tests/inline_asm_tests/) and run with qemu-aarch64 +2. Observe two failures + +``` +[ RUN ] Arm64InsnTest.SignedSaturatingShiftRightNarrowInt16x1 +frameworks/libs/binary_translation/tests/inline_asm_tests/main_arm64.cc:6697: Failure +Expected equality of these values: + res1 + Which is: 4294967188 + MakeUInt128(0x94U, 0U) + Which is: 148 +[ FAILED ] Arm64InsnTest.SignedSaturatingShiftRightNarrowInt16x1 (5 ms) +[ RUN ] Arm64InsnTest.SignedSaturatingRoundingShiftRightNarrowInt16x1 +frameworks/libs/binary_translation/tests/inline_asm_tests/main_arm64.cc:6793: Failure +Expected equality of these values: + res3 + Which is: 4294967168 + MakeUInt128(0x0000000000000080ULL, 0x0000000000000000ULL) + Which is: 128 +[ FAILED ] Arm64InsnTest.SignedSaturatingRoundingShiftRightNarrowInt16x1 (2 ms) +``` +Additional information: +[Direct link to SignedSaturatingShiftRightNarrowInt16x1 test source](https://cs.android.com/android/platform/superproject/main/+/main:frameworks/libs/binary_translation/tests/inline_asm_tests/main_arm64.cc;l=6692;drc=4ee2c3035fa5dc0b7a48b6c6dc498296be071861) |