https://gcc.gnu.org/bugzilla/show_bug.cgi?id=81386
--- Comment #6 from seurer at gcc dot gnu.org --- So here is comparing 249423 (works) with 249424 (fails): seurer@genoa:~/gcc/build/gcc-test2$ svn info $GCC_SRC . . . Revision: 249423 . . . seurer@genoa:~/gcc/build/gcc-test2$ /home/seurer/gcc/build/gcc-test2/gcc/xgcc -B/home/seurer/gcc/build/gcc-test2/gcc/ /home/seurer/gcc/gcc-test2/libgomp/testsuite/libgomp.fortran/appendix-a/a.16.1.f90 -B/home/seurer/gcc/build/gcc-test2/powerpc64le-unknown-linux-gnu/./libgomp/ -B/home/seurer/gcc/build/gcc-test2/powerpc64le-unknown-linux-gnu/./libgomp/.libs -I/home/seurer/gcc/build/gcc-test2/powerpc64le-unknown-linux-gnu/./libgomp -I/home/seurer/gcc/gcc-test2/libgomp/testsuite/../../include -I/home/seurer/gcc/gcc-test2/libgomp/testsuite/.. -fmessage-length=0 -fno-diagnostics-show-caret -Wno-hsa -fdiagnostics-color=never -fopenmp -O3 -g -B/home/seurer/gcc/build/gcc-test2/powerpc64le-unknown-linux-gnu/./libgomp/../libgfortran/.libs -fintrinsic-modules-path=/home/seurer/gcc/build/gcc-test2/powerpc64le-unknown-linux-gnu/./libgomp -L/home/seurer/gcc/build/gcc-test2/powerpc64le-unknown-linux-gnu/./libgomp/.libs -L/home/seurer/gcc/build/gcc-test2/powerpc64le-unknown-linux-gnu/./libgomp/../libgfortran/.libs -lgfortran -foffload=-lgfortran -lm -o ./a.16.1.exe seurer@genoa:~/gcc/build/gcc-test2$ ./a.16.1.exe X( 1 ) = 55000.0000 , Y( 1 ) = 2.00000000 X( 2 ) = 45010.0000 , Y( 2 ) = 4.00000000 X( 3 ) = 45020.0000 , Y( 3 ) = 6.00000000 X( 4 ) = 45030.0000 , Y( 4 ) = 8.00000000 X( 5 ) = 45040.0000 , Y( 5 ) = 10.0000000 X( 6 ) = 45050.0000 , Y( 6 ) = 12.0000000 X( 7 ) = 45060.0000 , Y( 7 ) = 14.0000000 X( 8 ) = 45070.0000 , Y( 8 ) = 16.0000000 X( 9 ) = 45080.0000 , Y( 9 ) = 18.0000000 X( 10 ) = 45090.0000 , Y( 10 ) = 20.0000000 seurer@genoa:~/gcc/build/gcc-test$ svn info $GCC_SRC Path: /home/seurer/gcc/gcc-test Working Copy Root Path: /home/seurer/gcc/gcc-test . . . Revision: 249424 . . . seurer@genoa:~/gcc/build/gcc-test$ /home/seurer/gcc/build/gcc-test/gcc/xgcc -B/home/seurer/gcc/build/gcc-test/gcc/ /home/seurer/gcc/gcc-test/libgomp/testsuite/libgomp.fortran/appendix-a/a.16.1.f90 -B/home/seurer/gcc/build/gcc-test/powerpc64le-unknown-linux-gnu/./libgomp/ -B/home/seurer/gcc/build/gcc-test/powerpc64le-unknown-linux-gnu/./libgomp/.libs -I/home/seurer/gcc/build/gcc-test/powerpc64le-unknown-linux-gnu/./libgomp -I/home/seurer/gcc/gcc-test/libgomp/testsuite/../../include -I/home/seurer/gcc/gcc-test/libgomp/testsuite/.. -fmessage-length=0 -fno-diagnostics-show-caret -Wno-hsa -fdiagnostics-color=never -fopenmp -O3 -g3 -B/home/seurer/gcc/build/gcc-test/powerpc64le-unknown-linux-gnu/./libgomp/../libgfortran/.libs -fintrinsic-modules-path=/home/seurer/gcc/build/gcc-test/powerpc64le-unknown-linux-gnu/./libgomp -L/home/seurer/gcc/build/gcc-test/powerpc64le-unknown-linux-gnu/./libgomp/.libs -L/home/seurer/gcc/build/gcc-test/powerpc64le-unknown-linux-gnu/./libgomp/../libgfortran/.libs -lgfortran -foffload=-lgfortran -lm -o ./a.16.1.exe seurer@genoa:~/gcc/build/gcc-test$ ./a.16.1.exe Program received signal SIGSEGV: Segmentation fault - invalid memory reference. Backtrace for this error: #0 0x3fff98cb9a9f in ??? Segmentation fault (core dumped) The options were the same: < .string "8 8.0.0 20170620 (experimental) [trunk revision 249424] -mcpu=power8 -g3 -O3 -fmessage-length=0 -fopenmp -fintrinsic-modules-path=/home/seurer/gcc/build/gcc-test/powerpc64le-unknown-linux-gnu/./libgomp -foffload=-lgfortran -fintrinsic-modules-path finclude" --- > .string " 8.0.0 20170620 (experimental) [trunk revision 249423] > -mcpu=power8 -g3 -O3 -fmessage-length=0 -fopenmp > -fintrinsic-modules-path=/home/seurer/gcc/build/gcc-test2/powerpc64le-unknown-linux-gnu/./libgomp > -foffload=-lgfortran -fintrinsic-modules-path finclude" 11c11 < .file 1 "/home/seurer/gcc/gcc-test/libgomp/testsuite/libgomp.fortran/appendix-a/a.16.1.f90" --- > .file 1 > "/home/seurer/gcc/gcc-test2/libgomp/testsuite/libgomp.fortran/appendix-a/a.16.1.f90" 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
