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| author | Yuri Rumyantsev <ysrumyan@gmail.com> | 2015-10-08 13:14:09 +0000 |
|---|---|---|
| committer | Ilya Enkovich <ienkovich@gcc.gnu.org> | 2015-10-08 13:14:09 +0000 |
| commit | a01e93f11b7ce050679951dedae66e40bca6be4d (patch) | |
| tree | 5f7294b8f0b81c4c83835b68641e48339dc64aa4 /gcc/testsuite/gcc.dg/loop-unswitch-2.c | |
| parent | f28ff5b5c504d19083ca474821475a04d0f46111 (diff) | |
| download | gcc-a01e93f11b7ce050679951dedae66e40bca6be4d.zip gcc-a01e93f11b7ce050679951dedae66e40bca6be4d.tar.gz gcc-a01e93f11b7ce050679951dedae66e40bca6be4d.tar.bz2 | |
tree-ssa-loop-unswitch.c: Include "gimple-iterator.h" and "cfghooks.h"...
gcc/
* tree-ssa-loop-unswitch.c: Include "gimple-iterator.h" and
"cfghooks.h", add prototypes for introduced new functions.
(tree_ssa_unswitch_loops): Use from innermost loop iterator, move all
checks on ability of loop unswitching to tree_unswitch_single_loop;
invoke tree_unswitch_single_loop or tree_unswitch_outer_loop depending
on innermost loop check.
(tree_unswitch_single_loop): Add all required checks on ability of
loop unswitching under zero recursive level guard.
(tree_unswitch_outer_loop): New function.
(find_loop_guard): Likewise.
(empty_bb_without_guard_p): Likewise.
(used_outside_loop_p): Likewise.
(get_vop_from_header): Likewise.
(hoist_guard): Likewise.
(check_exit_phi): Likewise.
gcc/testsuite/
* gcc.dg/loop-unswitch-2.c: New test.
* gcc.dg/loop-unswitch-3.c: Likewise.
* gcc.dg/loop-unswitch-4.c: Likewise.
From-SVN: r228599
Diffstat (limited to 'gcc/testsuite/gcc.dg/loop-unswitch-2.c')
| -rw-r--r-- | gcc/testsuite/gcc.dg/loop-unswitch-2.c | 15 |
1 files changed, 15 insertions, 0 deletions
diff --git a/gcc/testsuite/gcc.dg/loop-unswitch-2.c b/gcc/testsuite/gcc.dg/loop-unswitch-2.c new file mode 100644 index 0000000..5ebf608 --- /dev/null +++ b/gcc/testsuite/gcc.dg/loop-unswitch-2.c @@ -0,0 +1,15 @@ +/* { dg-do compile } */ +/* { dg-options "-O2 -funswitch-loops -fdump-tree-unswitch-details" } */ + +void foo (float **a, float **b, float *c, int n, int m, int l) +{ + int i,j,k; + float s; + for (i=0; i<l; i++) + for (j=0; j<n; j++) + for (k=0; k<m; k++) + c[i] += a[i][k] * b[k][j]; +} + +/* { dg-final { scan-tree-dump-times "guard hoisted" 2 "unswitch" } } */ + |