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| author | Christian Krinitsin <mail@krinitsin.com> | 2025-07-03 07:27:52 +0000 |
|---|---|---|
| committer | Christian Krinitsin <mail@krinitsin.com> | 2025-07-03 07:27:52 +0000 |
| commit | d0c85e36e4de67af628d54e9ab577cc3fad7796a (patch) | |
| tree | f8f784b0f04343b90516a338d6df81df3a85dfa2 /results/classifier/gemma3:12b/other/1841442 | |
| parent | 7f4364274750eb8cb39a3e7493132fca1c01232e (diff) | |
| download | qemu-analysis-d0c85e36e4de67af628d54e9ab577cc3fad7796a.tar.gz qemu-analysis-d0c85e36e4de67af628d54e9ab577cc3fad7796a.zip | |
add deepseek and gemma results
Diffstat (limited to 'results/classifier/gemma3:12b/other/1841442')
| -rw-r--r-- | results/classifier/gemma3:12b/other/1841442 | 56 |
1 files changed, 56 insertions, 0 deletions
diff --git a/results/classifier/gemma3:12b/other/1841442 b/results/classifier/gemma3:12b/other/1841442 new file mode 100644 index 000000000..ef6e653f5 --- /dev/null +++ b/results/classifier/gemma3:12b/other/1841442 @@ -0,0 +1,56 @@ + +floating point emulation can fail to set FE_INEXACT + +Floating point emulation can fail to set FE_INEXACT in some circumstances. This shows up quite often in glibc's "math" tests. A similar test is attached. + +On ppc64le native: +-- +$ gcc nextafter.c -o nextafter -lm +$ ./nextafter $(./nextafter) +0x0000000000000001 0.000000 +0x0 + +0xa000000 +FE_INEXACT FE_UNDERFLOW +0x0000000000000000 0.000000 +-- + +On x86_64: +-- +$ gcc nextafter.c -o nextafter -lm +$ ./nextafter $(./nextafter) +0x0000000000000001 0.000000 +0x0 + +0x30 +FE_INEXACT FE_UNDERFLOW +0x0000000000000000 0.000000 +-- + +Using qemu-system-ppc64 +-- +$ ./nextafter $(./nextafter) +0x0000000000000001 0.000000 +0x0 + +0x8000000 +FE_UNDERFLOW +0x0000000000000000 0.000000 +-- + +Using qemu-x86_64: +-- +$ ./nextafter $(./nextafter) +0x0000000000000001 0.000000 +0x0 + +0x0 + +0x0000000000000000 0.000000 +-- + +QEMU versions vary, but not too much, and are pretty close to git HEAD: +- 586f3dced9 (HEAD -> master, origin/master, origin/HEAD) Merge remote-tracking branch 'remotes/cohuck/tags/s390x-20190822' into staging +- 864ab31 Update version for v4.1.0-rc4 release + +Since the issue happens nearly identically on different targets, I suspect the issue lies somewhere in fpu/softfloat.c. \ No newline at end of file |