https://gcc.gnu.org/bugzilla/show_bug.cgi?id=81386
--- Comment #4 from seurer at gcc dot gnu.org --- Looking at the difference in generated code. The more recent (failing) builds are generating a whole bunch of vector ops where the old (working) code did not. < failing code (r250280) > last working code (r249423) 171d170 < addis 8,2,.LC1@toc@ha 174,187d172 < addi 8,8,.LC1@toc@l < addis 10,2,.LC3@toc@ha < std 22,-80(1) < std 23,-72(1) < addi 10,10,.LC3@toc@l < std 24,-64(1) < std 25,-56(1) < addis 9,2,.LC2@toc@ha < std 26,-48(1) < std 27,-40(1) < addi 9,9,.LC2@toc@l < vspltisw 4,4 < std 28,-32(1) < std 30,-16(1) 190,191c175,176 < vspltisw 6,6 < vspltisw 7,5 --- > li 9,10000 > mtctr 9 194,196c179,180 < std 0,16(1) < lis 0,0xfffe < std 31,-8(1) --- > std 22,-80(1) > std 23,-72(1) 199c183 < vspltisw 8,2 --- > lis 7,0x1062 202,203c186,187 < ori 0,0,0xb560 < lxvd2x 45,0,8 --- > std 24,-64(1) > std 25,-56(1) 206,210c190 < lxvd2x 37,0,10 < li 10,2500 < mtctr 10 < lxvd2x 44,0,9 < vspltisw 9,3 --- > ori 7,7,0x4dd3 212a193,201 > li 10,1 > std 26,-48(1) > std 27,-40(1) > std 28,-32(1) > std 30,-16(1) > std 0,16(1) > lis 0,0xfffe > std 31,-8(1) > ori 0,0,0xb560 227,232d215 < .LBB28: < .loc 1 31 0 < vspltisw 10,1 < .LBE28: < .loc 1 26 0 < xxpermdi 45,45,45,2 234,236c217,219 < addis 9,29,0x1 < addi 9,9,-25536 < .p2align 4,,15 --- > addis 8,29,0x1 > addi 8,8,-25540 > .p2align 5,,31 238c221 < .LBB29: --- > .LBB28: 240,256c223,230 < vmulosw 11,13,12 < vmulesw 0,13,12 < vsraw 1,13,5 < vmrgew 0,11,0 < vsraw 0,0,6 < vsubuwm 1,0,1 < vslw 0,1,7 < vsubuwm 0,0,1 < vslw 0,0,8 < vadduwm 0,0,1 < vslw 0,0,9 < vsubuwm 0,13,0 < vadduwm 13,13,4 < vadduwm 0,0,10 < xxpermdi 0,32,32,2 < stxvd2x 0,0,9 < addi 9,9,16 --- > mulhwu 9,10,7 > srwi 9,9,6 > mulli 9,9,1000 > subf 9,9,10 > addi 10,10,1 > addi 9,9,1 > stwu 9,4(8) > .loc 1 30 0
