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2008-04-27 Richard Guenther <rguenther@suse.de>
authorrguenth <rguenth@138bc75d-0d04-0410-961f-82ee72b054a4>
Sun, 27 Apr 2008 16:27:08 +0000 (16:27 +0000)
committerrguenth <rguenth@138bc75d-0d04-0410-961f-82ee72b054a4>
Sun, 27 Apr 2008 16:27:08 +0000 (16:27 +0000)
commitd88fd237e17f1ffbcb915692ea6ef65763838f80
tree9a909683a7cb44b23b9f7839b7acb08f6bf9a976
parent38475469c32d0b66a793399839b363109aea3cc2
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.

git-svn-id: svn+ssh://gcc.gnu.org/svn/gcc/trunk@134730 138bc75d-0d04-0410-961f-82ee72b054a4
22 files changed:
gcc/ChangeLog
gcc/passes.c
gcc/testsuite/ChangeLog
gcc/testsuite/gcc.dg/Wunreachable-8.c
gcc/testsuite/gcc.dg/tree-ssa/loop-36.c [new file with mode: 0644]
gcc/testsuite/gcc.dg/tree-ssa/loop-37.c [new file with mode: 0644]
gcc/testsuite/gcc.dg/vect/no-section-anchors-vect-66.c
gcc/testsuite/gcc.dg/vect/no-section-anchors-vect-69.c
gcc/testsuite/gcc.dg/vect/vect-118.c [new file with mode: 0644]
gcc/testsuite/gcc.dg/vect/vect-11a.c
gcc/testsuite/gcc.dg/vect/vect-66.c
gcc/testsuite/gcc.dg/vect/vect-76.c
gcc/testsuite/gcc.dg/vect/vect-outer-1.c
gcc/testsuite/gcc.dg/vect/vect-outer-1a.c
gcc/testsuite/gcc.dg/vect/vect-outer-6.c
gcc/testsuite/gcc.dg/vect/vect-shift-1.c
gcc/testsuite/gcc.target/i386/vectorize1.c
gcc/tree-flow.h
gcc/tree-pass.h
gcc/tree-ssa-loop-ivcanon.c
gcc/tree-ssa-loop-manip.c
gcc/tree-ssa-loop.c