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author | Aditya Kumar <aditya.k7@samsung.com> | 2015-08-18 13:41:31 -0500 |
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committer | Aditya Kumar <aditya.k7@samsung.com> | 2015-08-27 14:48:44 -0500 |
commit | 9c3e680bacdd0dbc9f6a6976967b49eb0725c3c5 (patch) | |
tree | 6580911111432d19a133dd08063df0cac5493c1a /gcc-4.9/gcc/testsuite/gcc.dg/tree-ssa/scev-9.c | |
parent | 56c1a4fd4bb668f7981497688c4feae55d524aac (diff) | |
download | toolchain_gcc-9c3e680bacdd0dbc9f6a6976967b49eb0725c3c5.tar.gz toolchain_gcc-9c3e680bacdd0dbc9f6a6976967b49eb0725c3c5.tar.bz2 toolchain_gcc-9c3e680bacdd0dbc9f6a6976967b49eb0725c3c5.zip |
PR tree-optimization/48052
commit 05032b10839cf0498c992c819bf2358e86c22bb0
Author: amker <amker@138bc75d-0d04-0410-961f-82ee72b054a4>
Date: Tue Jun 2 10:19:18 2015 +0000
PR tree-optimization/48052
* cfgloop.h (struct control_iv): New.
(struct loop): New field control_ivs.
* tree-ssa-loop-niter.c : Include "stor-layout.h".
(number_of_iterations_lt): Set no_overflow information.
(number_of_iterations_exit): Init control iv in niter struct.
(record_control_iv): New.
(estimate_numbers_of_iterations_loop): Call record_control_iv.
(loop_exits_before_overflow): New. Interface factored out of
scev_probably_wraps_p.
(scev_probably_wraps_p): Factor loop niter related code into
loop_exits_before_overflow.
(free_numbers_of_iterations_estimates_loop): Free control ivs.
* tree-ssa-loop-niter.h (free_loop_control_ivs): New.
gcc/testsuite/ChangeLog
PR tree-optimization/48052
* gcc.dg/tree-ssa/scev-8.c: New.
* gcc.dg/tree-ssa/scev-9.c: New.
* gcc.dg/tree-ssa/scev-10.c: New.
* gcc.dg/vect/pr48052.c: New.
git-svn-id: svn+ssh://gcc.gnu.org/svn/gcc/trunk@224020 138bc75d-0d04-0410-961f-82ee72b054a4
Diffstat (limited to 'gcc-4.9/gcc/testsuite/gcc.dg/tree-ssa/scev-9.c')
-rw-r--r-- | gcc-4.9/gcc/testsuite/gcc.dg/tree-ssa/scev-9.c | 21 |
1 files changed, 21 insertions, 0 deletions
diff --git a/gcc-4.9/gcc/testsuite/gcc.dg/tree-ssa/scev-9.c b/gcc-4.9/gcc/testsuite/gcc.dg/tree-ssa/scev-9.c new file mode 100644 index 000000000..557e33850 --- /dev/null +++ b/gcc-4.9/gcc/testsuite/gcc.dg/tree-ssa/scev-9.c @@ -0,0 +1,21 @@ +/* { dg-do compile } */ +/* { dg-options "-O2 -fdump-tree-ivopts-details" } */ + +int *a; + +int +foo (unsigned char s, unsigned char l) +{ + unsigned char i; + int sum = 0; + + for (i = s; i < l; i += 1) + { + sum += a[i]; + } + + return sum; +} + +/* Address of array reference is scev. */ +/* { dg-final { scan-tree-dump-times "use \[0-9\]\n address" 1 "ivopts" } } */ |