Build error on 32bit PowerPC

[novomesk]

Hello,

I am getting following errors when trying to build on Gentoo Linux:

FAILED: CMakeFiles/hwy_contrib.dir/hwy/contrib/sort/vqsort_128a.cc.o
/usr/bin/powerpc-unknown-linux-gnu-g++ -DHWY_SHARED_DEFINE -DTOOLCHAIN_MISS_ASM_HWCAP_H -Dhwy_contrib_EXPORTS -I/var/tmp/portage/dev-cpp/highway-1.0.7/work/highway-1.0.7  -Og -mcpu=7400 -fPIC -fvisibility=hidden -fvisibility-inlines-hidden -Wno-builtin-macro-redefined -D__DATE__=\"redacted\" -D__TIMESTAMP__=\"redacted\" -D__TIME__=\"redacted\" -fmerge-all-constants -Wall -Wextra -Wconversion -Wsign-conversion -Wvla -Wnon-virtual-dtor -fmath-errno -fno-exceptions -MD -MT CMakeFiles/hwy_contrib.dir/hwy/contrib/sort/vqsort_128a.cc.o -MF CMakeFiles/hwy_contrib.dir/hwy/contrib/sort/vqsort_128a.cc.o.d -o CMakeFiles/hwy_contrib.dir/hwy/contrib/sort/vqsort_128a.cc.o -c /var/tmp/portage/dev-cpp/highway-1.0.7/work/highway-1.0.7/hwy/contrib/sort/vqsort_128a.cc
/var/tmp/portage/dev-cpp/highway-1.0.7/temp/cceTwyMG.s: Assembler messages:
/var/tmp/portage/dev-cpp/highway-1.0.7/temp/cceTwyMG.s:237: Error: unrecognized opcode: `lxvd2x'
/var/tmp/portage/dev-cpp/highway-1.0.7/temp/cceTwyMG.s:239: Error: unrecognized opcode: `lxvd2x'
/var/tmp/portage/dev-cpp/highway-1.0.7/temp/cceTwyMG.s:240: Error: unrecognized opcode: `vcmpequd'
/var/tmp/portage/dev-cpp/highway-1.0.7/temp/cceTwyMG.s:241: Error: unrecognized opcode: `vcmpgtud'
/var/tmp/portage/dev-cpp/highway-1.0.7/temp/cceTwyMG.s:244: Error: unrecognized opcode: `xxsel'
/var/tmp/portage/dev-cpp/highway-1.0.7/temp/cceTwyMG.s:245: Error: unrecognized opcode: `xxpermdi'
/var/tmp/portage/dev-cpp/highway-1.0.7/temp/cceTwyMG.s:246: Error: unrecognized opcode: `xxsel'
/var/tmp/portage/dev-cpp/highway-1.0.7/temp/cceTwyMG.s:247: Error: unrecognized opcode: `xxsel'
/var/tmp/portage/dev-cpp/highway-1.0.7/temp/cceTwyMG.s:248: Error: unrecognized opcode: `stxvd2x'
/var/tmp/portage/dev-cpp/highway-1.0.7/temp/cceTwyMG.s:249: Error: unrecognized opcode: `stxvd2x'
/var/tmp/portage/dev-cpp/highway-1.0.7/temp/cceTwyMG.s:267: Error: unrecognized opcode: `stxvd2x'
/var/tmp/portage/dev-cpp/highway-1.0.7/temp/cceTwyMG.s:273: Error: unrecognized opcode: `lxvd2x'
/var/tmp/portage/dev-cpp/highway-1.0.7/temp/cceTwyMG.s:275: Error: unrecognized opcode: `lxvd2x'
/var/tmp/portage/dev-cpp/highway-1.0.7/temp/cceTwyMG.s:277: Error: unrecognized opcode: `lxvd2x'
/var/tmp/portage/dev-cpp/highway-1.0.7/temp/cceTwyMG.s:278: Error: unrecognized opcode: `lxvd2x'
/var/tmp/portage/dev-cpp/highway-1.0.7/temp/cceTwyMG.s:279: Error: unrecognized opcode: `vcmpequd'
/var/tmp/portage/dev-cpp/highway-1.0.7/temp/cceTwyMG.s:280: Error: unrecognized opcode: `vcmpgtud'
/var/tmp/portage/dev-cpp/highway-1.0.7/temp/cceTwyMG.s:283: Error: unrecognized opcode: `xxsel'
/var/tmp/portage/dev-cpp/highway-1.0.7/temp/cceTwyMG.s:284: Error: unrecognized opcode: `xxpermdi'
/var/tmp/portage/dev-cpp/highway-1.0.7/temp/cceTwyMG.s:285: Error: unrecognized opcode: `xxsel'
/var/tmp/portage/dev-cpp/highway-1.0.7/temp/cceTwyMG.s:286: Error: unrecognized opcode: `xxsel'
/var/tmp/portage/dev-cpp/highway-1.0.7/temp/cceTwyMG.s:287: Error: unrecognized opcode: `vcmpequd'
/var/tmp/portage/dev-cpp/highway-1.0.7/temp/cceTwyMG.s:288: Error: unrecognized opcode: `vcmpgtud'
/var/tmp/portage/dev-cpp/highway-1.0.7/temp/cceTwyMG.s:290: Error: unrecognized opcode: `xxsel'
/var/tmp/portage/dev-cpp/highway-1.0.7/temp/cceTwyMG.s:291: Error: unrecognized opcode: `xxpermdi'
/var/tmp/portage/dev-cpp/highway-1.0.7/temp/cceTwyMG.s:292: Error: unrecognized opcode: `xxsel'
/var/tmp/portage/dev-cpp/highway-1.0.7/temp/cceTwyMG.s:293: Error: unrecognized opcode: `xxsel'
/var/tmp/portage/dev-cpp/highway-1.0.7/temp/cceTwyMG.s:294: Error: unrecognized opcode: `vcmpequd'
/var/tmp/portage/dev-cpp/highway-1.0.7/temp/cceTwyMG.s:295: Error: unrecognized opcode: `vcmpgtud'
/var/tmp/portage/dev-cpp/highway-1.0.7/temp/cceTwyMG.s:297: Error: unrecognized opcode: `xxsel'
/var/tmp/portage/dev-cpp/highway-1.0.7/temp/cceTwyMG.s:298: Error: unrecognized opcode: `xxpermdi'
/var/tmp/portage/dev-cpp/highway-1.0.7/temp/cceTwyMG.s:299: Error: unrecognized opcode: `xxsel'

cat /proc/cpuinfo
processor       : 0
cpu             : 7400, altivec supported
temperature     : 50-126 C (uncalibrated)
clock           : 900.000000MHz
revision        : 2.9 (pvr 000c 0209)
bogomips        : 50.00

total bogomips  : 50.00
timebase        : 25000000
platform        : PowerMac
model           : PowerMac3,1
machine         : PowerMac3,1
motherboard     : PowerMac3,1 MacRISC MacRISC2 Power Macintosh
detected as     : 65 (PowerMac G4 AGP Graphics)
pmac flags      : 00000004
pmac-generation : NewWorld
Memory          : 2048 MB

[johnplatts]

PowerPC-based Macs do not support the HWY_PPC8/HWY_PPC9/HWY_PPC10 targets as the HWY_PPC8 target uses some SIMD instructions added in POWER8 (such as VSX or I64/U64/I128/U128 arithmetic ops) that are not available on any PowerPC-based Mac (including G4/G5 Macs that support the original AltiVec instruction set but not VSX), and the HWY_PPC8/HWY_PPC9/HWY_PPC10 targets should be disabled when compiling for 32-bit PowerPC by compiling with -DHWY_COMPILE_ONLY_EMU128=1 or -DHWY_COMPILE_ONLY_SCALAR=1.

[jan-wassenberg]

Can we automate this by checking HWY_ARCH_PPC && !HWY_ARCH_PPC_64 and if so, marking all the HWY_PPC as broken?

[johnplatts]

Can we automate this by checking HWY_ARCH_PPC && !HWY_ARCH_PPC_64 and if so, marking all the HWY_PPC as broken?

Yes, we can check this.

[jan-wassenberg]

Thank you @johnplatts !

[malaterre]

Symptoms have been hidden with commit 10c48a9