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[Bug fortran/36599] major execution regression for induct.f90 polyhedron benchmark in 4.3.1 on Intel
- From: "howarth at nitro dot med dot uc dot edu" <gcc-bugzilla at gcc dot gnu dot org>
- To: gcc-bugs at gcc dot gnu dot org
- Date: 23 Jun 2008 00:46:27 -0000
- Subject: [Bug fortran/36599] major execution regression for induct.f90 polyhedron benchmark in 4.3.1 on Intel
- References: <bug-36599-11113@http.gcc.gnu.org/bugzilla/>
- Reply-to: gcc-bugzilla at gcc dot gnu dot org
------- Comment #8 from howarth at nitro dot med dot uc dot edu 2008-06-23 00:46 -------
Looking at the SuSe polyhedron benchmark servers, the induct regression in
trunk was eliminated between 2008-04-27 and 2008-04-28. My guess is this was
fixed with...
r134730 | rguenth | 2008-04-27 12:27:08 -0400 (Sun, 27 Apr 2008) | 42 lines
2008-04-27 Richard Guenther <rguenther@suse.de>
PR tree-optimization/18754
PR tree-optimization/34223
* tree-pass.h (pass_complete_unrolli): Declare.
* tree-ssa-loop-ivcanon.c (try_unroll_loop_completely): Print
loop size before and after unconditionally of UL_NO_GROWTH in effect.
Rewrite loop into loop closed SSA form if it is not already.
(tree_unroll_loops_completely): Re-structure to iterate over
innermost loops with intermediate CFG cleanups.
Unroll outermost loops only if requested or the code does not grow
doing so.
* tree-ssa-loop.c (gate_tree_vectorize): Don't shortcut if no
loops are available.
(tree_vectorize): Instead do so here.
(tree_complete_unroll): Also unroll outermost loops.
(tree_complete_unroll_inner): New function.
(gate_tree_complete_unroll_inner): Likewise.
(pass_complete_unrolli): New pass.
* tree-ssa-loop-manip.c (find_uses_to_rename_use): Only record
uses outside of the loop.
(tree_duplicate_loop_to_header_edge): Only verify loop-closed SSA
form if it is available.
* tree-flow.h (tree_unroll_loops_completely): Add extra parameter.
* passes.c (init_optimization_passes): Schedule complete inner
loop unrolling pass before the first CCP pass after final inlining.
* gcc.dg/tree-ssa/loop-36.c: New testcase.
* gcc.dg/tree-ssa/loop-37.c: Likewise.
* gcc.dg/vect/vect-118.c: Likewise.
* gcc.dg/Wunreachable-8.c: XFAIL bogus warning.
* gcc.dg/vect/vect-66.c: Increase loop trip count.
* gcc.dg/vect/no-section-anchors-vect-66.c: Likewise.
* gcc.dg/vect/no-section-anchors-vect-69.c: Likewise.
* gcc.dg/vect/vect-76.c: Likewise.
* gcc.dg/vect/vect-outer-6.c: Likewise.
* gcc.dg/vect/vect-outer-1.c: Likewise.
* gcc.dg/vect/vect-outer-1a.c: Likewise.
* gcc.dg/vect/vect-11a.c: Likewise.
* gcc.dg/vect/vect-shift-1.c: Likewise.
* gcc.target/i386/vectorize1.c: Likewise.
--
http://gcc.gnu.org/bugzilla/show_bug.cgi?id=36599