http://gcc.gnu.org/bugzilla/show_bug.cgi?id=50413
--- Comment #11 from Dominique d'Humieres <dominiq at lps dot ens.fr> 2011-09-19 15:20:22 UTC --- > On Linux/x86, I got > > FAIL: g++.dg/vect/slp-pr50413.cc scan-tree-dump-times slp "basic block > vectorized using SLP" 0 I get the same failure on x86_64-apple-darwin10. Grepping for SLP returns 170: Build SLP for V.uint128.uint64_lower = 0; 170: Build SLP for V.uint128.uint64_upper = 3556786177; 170: Basic block will be vectorized using SLP 170: SLPing BB 170: ------>SLPing statement: V.uint128.uint64_lower = 0; 170: ------>vectorizing SLP node starting from: V.uint128.uint64_lower = 0; 170: vectorizing stmts using SLP. 170: basic block vectorized using SLP /opt/gcc/work/gcc/testsuite/g++.dg/vect/slp-pr50413.cc:168: note: Failed to SLP the basic block. /opt/gcc/work/gcc/testsuite/g++.dg/vect/slp-pr50413.cc:168: note: not vectorized: failed to find SLP opportunities in basic block. If I omit '-fno-vect-cost-model', I get 170: Build SLP for V.uint128.uint64_lower = 0; 170: Build SLP for V.uint128.uint64_upper = 3556786177; /opt/gcc/work/gcc/testsuite/g++.dg/vect/slp-pr50413.cc:168: note: Failed to SLP the basic block. /opt/gcc/work/gcc/testsuite/g++.dg/vect/slp-pr50413.cc:168: note: not vectorized: failed to find SLP opportunities in basic block.
