https://gcc.gnu.org/bugzilla/show_bug.cgi?id=69469
Bug ID: 69469 Summary: test case gcc.target/powerpc/vsx-vector-2.c fails on power starting with r232632 Product: gcc Version: 6.0 Status: UNCONFIRMED Severity: normal Priority: P3 Component: target Assignee: unassigned at gcc dot gnu.org Reporter: seurer at linux dot vnet.ibm.com Target Milestone: --- This fails on both BE and LE. Executing on host: /home/seurer/gcc/build/gcc-test/gcc/xgcc -B/home/seurer/gcc/build/gcc-test/gcc/ /home/seurer/gcc/gcc-test/gcc/testsuite/gcc.target/powerpc/vsx-vector-2.c -fno-diagnostics-show-caret -fdiagnostics-color=never -O2 -ftree-vectorize -mcpu=power7 -ffast-math -ffat-lto-objects -S -o vsx-vector-2.s (timeout = 300) spawn /home/seurer/gcc/build/gcc-test/gcc/xgcc -B/home/seurer/gcc/build/gcc-test/gcc/ /home/seurer/gcc/gcc-test/gcc/testsuite/gcc.target/powerpc/vsx-vector-2.c -fno-diagnostics-show-caret -fdiagnostics-color=never -O2 -ftree-vectorize -mcpu=power7 -ffast-math -ffat-lto-objects -S -o vsx-vector-2.s PASS: gcc.target/powerpc/vsx-vector-2.c (test for excess errors) PASS: gcc.target/powerpc/vsx-vector-2.c scan-assembler xvaddsp PASS: gcc.target/powerpc/vsx-vector-2.c scan-assembler xvsubsp PASS: gcc.target/powerpc/vsx-vector-2.c scan-assembler xvmulsp PASS: gcc.target/powerpc/vsx-vector-2.c scan-assembler xvdivsp PASS: gcc.target/powerpc/vsx-vector-2.c scan-assembler vmadd PASS: gcc.target/powerpc/vsx-vector-2.c scan-assembler xvmsub FAIL: gcc.target/powerpc/vsx-vector-2.c scan-assembler xvsqrtsp PASS: gcc.target/powerpc/vsx-vector-2.c scan-assembler xvcpsgnsp PASS: gcc.target/powerpc/vsx-vector-2.c scan-assembler xvrspim PASS: gcc.target/powerpc/vsx-vector-2.c scan-assembler xvrspip PASS: gcc.target/powerpc/vsx-vector-2.c scan-assembler xvrspiz PASS: gcc.target/powerpc/vsx-vector-2.c scan-assembler xvrspic PASS: gcc.target/powerpc/vsx-vector-2.c scan-assembler xvrspi The differences in the output are significant: seurer@genoa:~/gcc/build/gcc-test3$ diff vsx-vector-2.s.r232631 vsx-vector-2.s.r232632 . . . 242a243 > xxlxor 11,11,11 245,246c246 < ld 10,.LC22@toc@l(9) < li 9,0 --- > addi 9,9,.LC22@toc@l 248c248,252 < .p2align 5,,31 --- > lxvd2x 10,0,9 > addis 9,2,.LC23@toc@ha > ld 10,.LC23@toc@l(9) > li 9,0 > .p2align 4,,15 251c255,261 < xvsqrtsp 0,0 --- > xvrsqrtesp 12,0 > xvcmpgtsp 9,0,11 > xxsel 12,11,12,9 > xvmulsp 0,12,0 > xvmulsp 12,12,10 > xvnmsubmsp 12,0,10 > xvmaddasp 0,0,12 Those are in the vector_sqrt function. ------------------------------------------------------------------------ r232632 | dje | 2016-01-20 13:39:08 -0600 (Wed, 20 Jan 2016) | 6 lines PR target/68609 * config/rs6000/rs6000.c (rs6000_emit_swsqrt): Add vector sqrt domain check. * config/rs6000/vector.md (sqrt<mode>2): Call rs6000_emit_swsqrt for V4SFmode.