This patch: http://gcc.gnu.org/viewcvs?view=rev&rev=133144
r133144 | bonzini | 2008-03-12 11:33:45 -0400 (Wed, 12 Mar 2008) causes the following test failures (and new XPASS) on powerpc64-linux with both -m32 and -m64: FAIL: gcc.dg/vect/vect-strided-store-u16-i4.c scan-tree-dump-times vect "vectorized 1 loops" 2 FAIL: gcc.dg/vect/vect-vfa-03.c scan-tree-dump-times vect "vectorized 1 loops" 1 XPASS: gcc.dg/vect/vect-vfa-03.c scan-tree-dump-times vect "vectorized 1 loops" 0 FAIL: gcc.dg/vect/slp-21.c scan-tree-dump-times vect "vectorized 4 loops" 1 FAIL: gcc.dg/vect/slp-21.c scan-tree-dump-times vect "vectorizing stmts using SLP" 2 FAIL: gcc.dg/vect/slp-7.c scan-tree-dump-times vect "vectorized 3 loops" 1 FAIL: gcc.dg/vect/slp-7.c scan-tree-dump-times vect "vectorizing stmts using SLP" 3 The patch referenced above made a slight change to slp-7.c. -- Summary: vect testsuite regressions from fold_const fix Product: gcc Version: 4.4.0 Status: UNCONFIRMED Severity: normal Priority: P3 Component: tree-optimization AssignedTo: unassigned at gcc dot gnu dot org ReportedBy: janis at gcc dot gnu dot org GCC target triplet: powerpc*-*-linux* http://gcc.gnu.org/bugzilla/show_bug.cgi?id=36295