------- Comment #6 from jsm28 at gcc dot gnu dot org 2008-03-20 13:29 ------- Created an attachment (id=15349) --> (http://gcc.gnu.org/bugzilla/attachment.cgi?id=15349&action=view) Gimplification-time patch
Changing at build_unary_op time runs into OpenMP problems - the OpenMP code needs the trees to correspond more directly to the increments and decrements in the source code. Changing at gimplification time, as in the attached patch, avoids that problem, but a number of gcc.dg/vect tests regress because of the changes to the code for increment/decrement of types that get promoted. FAIL: gcc.dg/vect/pr18536.c scan-tree-dump-times vect "vectorized 1 loops" 1 FAIL: gcc.dg/vect/pr30771.c scan-tree-dump-times vect "vectorized 1 loops" 1 FAIL: gcc.dg/vect/vect-iv-8a.c scan-tree-dump-times vect "vectorized 1 loops" 1 FAIL: gcc.dg/vect/vect-multitypes-11.c scan-tree-dump-times vect "vectorized 1 loops" 2 FAIL: gcc.dg/vect/vect-reduc-dot-u16a.c scan-tree-dump-times vect "vectorized 1 loops" 2 FAIL: gcc.dg/vect/slp-21.c scan-tree-dump-times vect "vectorized 1 loops" 1 FAIL: gcc.dg/vect/no-scevccp-outer-13.c scan-tree-dump-times vect "OUTER LOOP VECTORIZED." 1 FAIL: gcc.dg/vect/no-scevccp-outer-14.c scan-tree-dump-times vect "OUTER LOOP VECTORIZED." 1 FAIL: gcc.dg/vect/no-scevccp-outer-16.c scan-tree-dump-times vect "OUTER LOOP VECTORIZED." 1 FAIL: gcc.dg/vect/no-scevccp-outer-17.c scan-tree-dump-times vect "OUTER LOOP VECTORIZED." 1 FAIL: gcc.dg/vect/no-scevccp-outer-19.c scan-tree-dump-times vect "OUTER LOOP VECTORIZED." 1 FAIL: gcc.dg/vect/no-scevccp-outer-21.c scan-tree-dump-times vect "OUTER LOOP VECTORIZED." 1 FAIL: gcc.dg/vect/no-scevccp-outer-7.c scan-tree-dump-times vect "OUTER LOOP VECTORIZED." 1 -- http://gcc.gnu.org/bugzilla/show_bug.cgi?id=35634
