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Diffstat (limited to 'results/classifier/zero-shot/118/architecture-x86/1605123')
| -rw-r--r-- | results/classifier/zero-shot/118/architecture-x86/1605123 | 97 |
1 files changed, 97 insertions, 0 deletions
diff --git a/results/classifier/zero-shot/118/architecture-x86/1605123 b/results/classifier/zero-shot/118/architecture-x86/1605123 new file mode 100644 index 000000000..3be8e6eda --- /dev/null +++ b/results/classifier/zero-shot/118/architecture-x86/1605123 @@ -0,0 +1,97 @@ +x86: 0.966 +architecture: 0.952 +graphic: 0.887 +ppc: 0.877 +performance: 0.804 +semantic: 0.794 +i386: 0.779 +device: 0.717 +files: 0.654 +mistranslation: 0.618 +network: 0.597 +user-level: 0.584 +permissions: 0.553 +vnc: 0.552 +arm: 0.546 +PID: 0.531 +TCG: 0.528 +peripherals: 0.516 +risc-v: 0.488 +boot: 0.485 +socket: 0.475 +hypervisor: 0.460 +kernel: 0.458 +register: 0.457 +VMM: 0.440 +virtual: 0.428 +debug: 0.390 +KVM: 0.329 +assembly: 0.215 +-------------------- +x86: 0.979 +kernel: 0.837 +debug: 0.470 +user-level: 0.352 +virtual: 0.103 +hypervisor: 0.089 +files: 0.084 +register: 0.017 +TCG: 0.014 +i386: 0.012 +semantic: 0.005 +PID: 0.005 +assembly: 0.004 +network: 0.003 +device: 0.002 +performance: 0.002 +architecture: 0.002 +KVM: 0.001 +VMM: 0.001 +socket: 0.001 +graphic: 0.001 +boot: 0.001 +ppc: 0.001 +peripherals: 0.001 +risc-v: 0.001 +vnc: 0.000 +permissions: 0.000 +mistranslation: 0.000 +arm: 0.000 + +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 + |