1 files changed, 52 insertions, 0 deletions
diff --git a/results/classifier/zero-shot/108/other/1605123 b/results/classifier/zero-shot/108/other/1605123
new file mode 100644
index 00000000..619f4a6f
--- /dev/null
+++ b/results/classifier/zero-shot/108/other/1605123
@@ -0,0 +1,52 @@
+graphic: 0.887
+performance: 0.804
+semantic: 0.794
+device: 0.717
+other: 0.692
+files: 0.654
+network: 0.597
+permissions: 0.553
+vnc: 0.552
+PID: 0.531
+boot: 0.485
+socket: 0.475
+debug: 0.390
+KVM: 0.329
+
+PEXT returns wrong values, seemingly switches arguments
+
+Hi,
+
+I fiddled with BMI2 instructions and discovered that pext instructions
+emulated with "qemu-x86_64 -cpu Haswell" return the wrong value. It
+seemingly switches up its arguments. I suspect that the error is around the
+gen_helper_pext(...) call in target-i386/translate.c. I checked helper_pext
+in target-i386/int_helper.c and it works fine.
+
+I ran my program on a CPU with BMI2 instruction set too, and it indeed
+returns different values.
+
+I didn't check pdep, it could have the same problem.
+
+$ qemu-x86_64 --version
+qemu-x86_64 version 2.6.50 (v2.6.0-2095-ge66b05e-dirty), Copyright (c) 2003-2008 Fabrice Bellard
+
+$ uname -a
+Linux lenard-hp 4.3.0-1-amd64 #1 SMP Debian 4.3.5-1 (2016-02-06) x86_64 GNU/Linux
+
+I compiled the attached file with the command line "gcc -o main -g -mbmi2 main.c".
+
+$ gcc --version
+gcc (Debian 5.4.0-6) 5.4.0 20160609
+
+Best regards,
+Lénárd Szolnoki
+
+
+
+Paolo sent a patch here:
+https://lists.gnu.org/archive/html/qemu-devel/2020-11/msg05700.html
+
+Fix has been committed:
+https://git.qemu.org/?p=qemu.git;a=commitdiff;h=75b208c28316095c4685
+