restructure results

1 files changed, 43 insertions, 0 deletions

diff --git a/results/classifier/semantic-bugs/1245543 b/results/classifier/semantic-bugs/1245543
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+++ b/results/classifier/semantic-bugs/1245543
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+instruction: 0.966
+other: 0.798
+device: 0.770
+semantic: 0.629
+socket: 0.619
+network: 0.548
+vnc: 0.529
+graphic: 0.455
+boot: 0.437
+mistranslation: 0.417
+assembly: 0.269
+KVM: 0.262
+
+Wrong implementation of SSE4.1 pmovzxbw and similar instructions
+
+QEMU 1.5.0 (and git version, as far as I can tell from the source code) has incorrect implementation of pmovzxbw and similar SSE4.1 instructions. The instruction zero-extends the first 8 8-bit elements of a vector to 16bit vector and puts them to another vector. The current implementation applies this operation only to the first element and zeros out the rest.
+
+To verify, compile the attached program for SSE4.1 (g++ -msse4.1 cvtint.cc). On real hardware, it produces the following output:
+
+$ ./a.out
+1 0 2 0 3 0 4 0 5 0 6 0 7 0 8 0
+
+On QEMU, the output is as follows:
+
+$ ./a.out
+1 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0
+
+QEMU is invoked as:
+
+qemu-system-x86_64 \
+    -M pc -cpu Haswell,+sse4.1,+avx,+avx2,+fma,enforce -m 512 \
+    -serial stdio -no-reboot \
+    -kernel vmlinuz -initrd initrd.img \
+    -netdev user,id=user.0 -device rtl8139,netdev=user.0  -redir tcp:2222::22 \
+    -hda ubuntu-amd64.ext3 \
+    --append "rw console=tty root=/dev/sda"
+
+
+
+Looking through old bug tickets... is this still an issue with the latest version of QEMU? Or could we close this ticket nowadays?
+
+[Expired for QEMU because there has been no activity for 60 days.]
+