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| author | Tom de Vries <tom@codesourcery.com> | 2016-01-11 09:19:33 +0000 |
|---|---|---|
| committer | Tom de Vries <vries@gcc.gnu.org> | 2016-01-11 09:19:33 +0000 |
| commit | 4f6403a8ce2648cb785789f444b5bbaccd415976 (patch) | |
| tree | e7c44fcd28db1db33aadb1e8f45b1be58a95b673 /gcc | |
| parent | 4bfede854f6b742fa7472ec7f401681d4bce8a7f (diff) | |
| download | gcc-4f6403a8ce2648cb785789f444b5bbaccd415976.zip gcc-4f6403a8ce2648cb785789f444b5bbaccd415976.tar.gz gcc-4f6403a8ce2648cb785789f444b5bbaccd415976.tar.bz2 | |
Handle case that outer phi res is not used in a phi in gather_scalar_reductions
2016-01-11 Tom de Vries <tom@codesourcery.com>
PR tree-optimization/69108
* tree-parloops.c (gather_scalar_reductions): Handle case that outer phi
res is not used in a phi.
* gcc.dg/autopar/pr69108.c: New test.
From-SVN: r232211
Diffstat (limited to 'gcc')
| -rw-r--r-- | gcc/ChangeLog | 6 | ||||
| -rw-r--r-- | gcc/testsuite/ChangeLog | 5 | ||||
| -rw-r--r-- | gcc/testsuite/gcc.dg/autopar/pr69108.c | 4 | ||||
| -rw-r--r-- | gcc/tree-parloops.c | 2 |
4 files changed, 17 insertions, 0 deletions
diff --git a/gcc/ChangeLog b/gcc/ChangeLog index 29e45a6..43623dc 100644 --- a/gcc/ChangeLog +++ b/gcc/ChangeLog @@ -1,3 +1,9 @@ +2016-01-11 Tom de Vries <tom@codesourcery.com> + + PR tree-optimization/69108 + * tree-parloops.c (gather_scalar_reductions): Handle case that outer phi + res is not used in a phi. + 2016-01-11 Yury Gribov <y.gribov@samsung.com> PR 67425 diff --git a/gcc/testsuite/ChangeLog b/gcc/testsuite/ChangeLog index 615a527..ec4cd37 100644 --- a/gcc/testsuite/ChangeLog +++ b/gcc/testsuite/ChangeLog @@ -1,3 +1,8 @@ +2016-01-11 Tom de Vries <tom@codesourcery.com> + + PR tree-optimization/69108 + * gcc.dg/autopar/pr69108.c: New test. + 2016-01-10 Patrick Palka <ppalka@gcc.gnu.org> PR c++/69029 diff --git a/gcc/testsuite/gcc.dg/autopar/pr69108.c b/gcc/testsuite/gcc.dg/autopar/pr69108.c new file mode 100644 index 0000000..39fc07e --- /dev/null +++ b/gcc/testsuite/gcc.dg/autopar/pr69108.c @@ -0,0 +1,4 @@ +/* { dg-do compile } */ +/* { dg-options "-O2 -ftree-parallelize-loops=2" } */ + +#include "../graphite/interchange-2.c" diff --git a/gcc/tree-parloops.c b/gcc/tree-parloops.c index e05cc47..d683704 100644 --- a/gcc/tree-parloops.c +++ b/gcc/tree-parloops.c @@ -2474,6 +2474,8 @@ gather_scalar_reductions (loop_p loop, reduction_info_table_type *reduction_list gimple *inner_stmt; bool single_use_p = single_imm_use (res, &use_p, &inner_stmt); gcc_assert (single_use_p); + if (gimple_code (inner_stmt) != GIMPLE_PHI) + continue; gphi *inner_phi = as_a <gphi *> (inner_stmt); if (simple_iv (loop->inner, loop->inner, PHI_RESULT (inner_phi), &iv, true)) |