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| author | Christian Krinitsin <mail@krinitsin.com> | 2025-05-30 16:52:07 +0200 |
|---|---|---|
| committer | Christian Krinitsin <mail@krinitsin.com> | 2025-05-30 16:52:17 +0200 |
| commit | 9260319e7411ff8281700a532caa436f40120ec4 (patch) | |
| tree | 2f6bfe5f3458dd49d328d3a9eb508595450adec0 /gitlab/issues/target_sparc/host_missing/accel_missing/1901.toml | |
| parent | 225caa38269323af1bfc2daadff5ec8bd930747f (diff) | |
| download | qemu-analysis-9260319e7411ff8281700a532caa436f40120ec4.tar.gz qemu-analysis-9260319e7411ff8281700a532caa436f40120ec4.zip | |
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Diffstat (limited to 'gitlab/issues/target_sparc/host_missing/accel_missing/1901.toml')
| -rw-r--r-- | gitlab/issues/target_sparc/host_missing/accel_missing/1901.toml | 27 |
1 files changed, 0 insertions, 27 deletions
diff --git a/gitlab/issues/target_sparc/host_missing/accel_missing/1901.toml b/gitlab/issues/target_sparc/host_missing/accel_missing/1901.toml deleted file mode 100644 index 198b1b3f4..000000000 --- a/gitlab/issues/target_sparc/host_missing/accel_missing/1901.toml +++ /dev/null @@ -1,27 +0,0 @@ -id = 1901 -title = "qemu-sparc64 / sparc32plus apparent wrong results from VIS fmul8x16 instruction" -state = "closed" -created_at = "2023-09-22T19:14:54.496Z" -closed_at = "2024-05-06T22:29:26.400Z" -labels = ["target: sparc"] -url = "https://gitlab.com/qemu-project/qemu/-/issues/1901" -host-os = "Gentoo GNU/Linux" -host-arch = "ppc64le" -qemu-version = "qemu-sparc64 version 8.1.50 (v8.1.0-951-gb55e4b9c05); also observed in 8.0.4 release" -guest-os = "N/A" -guest-arch = "SPARC (v9 w/ VIS)" -description = """Experimenting with SPARC emulation, I noticed that the results of the UltraSparc fmul8x16 instruction don't appear to match the behaviour of real silicon (aka it doesn't appear to work at all -- in the test program, the result seems to be always 0). Other VIS instructions I tried seem to be OK (I have not tried all of them). - -The same problem is observed both in 64-bit (qemu-sparc64) and 32-bit (qemu-sparc32plus) applications.""" -reproduce = """1. Compile the attached test program (which exhaustively tests all possible combinations of 16-bit and 8-bit inputs) with gcc: - ``` - sparc64-unknown-linux-gnu-gcc -static -Os -mcpu=ultrasparc -mvis -o test_fmul8x16 test_fmul8x16.c - ``` -2. Run it in qemu-sparc64: - ``` - qemu-sparc64 -cpu 'TI UltraSparc II' ./test_fmul8x16 - ``` -3. Observe almost all tests fail. - - Running the exact same compiled binary on a real UltraSparc II CPU gives all pass results.""" -additional = """[test_fmul8x16.c](/uploads/2bf68e53652fba2ed69ac3ebb3f4b5e9/test_fmul8x16.c)""" |