https://bugs.kde.org/show_bug.cgi?id=389700
Bug ID: 389700
Summary: vex amd64->IR: unhandled instruction bytes: 0xC4 0xE3
0x7D 0x1D 0xED 0x0 0xC5 0xF9 0xC5 0xF5
Product: valgrind
Version: 3.13.0
Platform: unspecified
OS: Linux
Status: UNCONFIRMED
Severity: crash
Priority: NOR
Component: vex
Assignee: jsew...@acm.org
Reporter: sxvp12...@gmail.com
Target Milestone: ---
Valgrind 3.13.0, built from source on Ubuntu 16.04.
Seems similar to bug 339596, except this is from packed signed to packed half
precision (the other way around).
vex amd64->IR: unhandled instruction bytes: 0xC4 0xE3 0x7D 0x1D 0xED 0x0 0xC5
0xF9 0xC5 0xF5
vex amd64->IR: REX=0 REX.W=0 REX.R=0 REX.X=0 REX.B=0
vex amd64->IR: VEX=1 VEX.L=1 VEX.nVVVV=0x0 ESC=0F3A
vex amd64->IR: PFX.66=1 PFX.F2=0 PFX.F3=0
==4231== valgrind: Unrecognised instruction at address 0x42a3c5.
==4231== at 0x42A3C5: _mm256_cvtps_ph (f16cintrin.h:75)
==4231== by 0x42A3C5: pack_weights_vec8_f16(float*, int*, int*, int,
_dims_t*) (compression.c:56)
==4231== by 0x402FE6: main (test_smiv_csr.cpp:31)
==4231== Your program just tried to execute an instruction that Valgrind
==4231== did not recognise. There are two possible reasons for this.
==4231== 1. Your program has a bug and erroneously jumped to a non-code
==4231== location. If you are running Memcheck and you just saw a
==4231== warning about a bad jump, it's probably your program's fault.
==4231== 2. The instruction is legitimate but Valgrind doesn't handle it,
==4231== i.e. it's Valgrind's fault. If you think this is the case or
==4231== you are not sure, please let us know and we'll try to fix it.
==4231== Either way, Valgrind will now raise a SIGILL signal which will
==4231== probably kill your program.
==4231==
==4231== Process terminating with default action of signal 4 (SIGILL)
==4231== Illegal opcode at address 0x42A3C5
==4231== at 0x42A3C5: _mm256_cvtps_ph (f16cintrin.h:75)
==4231== by 0x42A3C5: pack_weights_vec8_f16(float*, int*, int*, int,
_dims_t*) (compression.c:56)
==4231== by 0x402FE6: main (test_smiv_csr.cpp:31)
--
You are receiving this mail because:
You are watching all bug changes.
