diff options
| author | Jakub Jelinek <jakub@redhat.com> | 2018-03-27 22:00:56 +0200 |
|---|---|---|
| committer | Jakub Jelinek <jakub@gcc.gnu.org> | 2018-03-27 22:00:56 +0200 |
| commit | 153dba6cbb3b37ad07d23d212890b2bd055ac05f (patch) | |
| tree | ea10fd34e5bb3a747c9941d1ae3cc3fc692e200a | |
| parent | a7dea61705009a47b788ecafed0816ab8b54e3ac (diff) | |
| download | gcc-153dba6cbb3b37ad07d23d212890b2bd055ac05f.zip gcc-153dba6cbb3b37ad07d23d212890b2bd055ac05f.tar.gz gcc-153dba6cbb3b37ad07d23d212890b2bd055ac05f.tar.bz2 | |
re PR c++/85077 (V[248][SD]F abs not optimized to)
PR c++/85077
* cp-gimplify.c (cp_fold) <case CONSTRUCTOR>: For ctors with vector
type call fold to generate VECTOR_CSTs when possible.
* g++.dg/ext/vector35.C: New test.
From-SVN: r258903
| -rw-r--r-- | gcc/cp/ChangeLog | 4 | ||||
| -rw-r--r-- | gcc/cp/cp-gimplify.c | 2 | ||||
| -rw-r--r-- | gcc/testsuite/ChangeLog | 3 | ||||
| -rw-r--r-- | gcc/testsuite/g++.dg/ext/vector35.C | 22 |
4 files changed, 31 insertions, 0 deletions
diff --git a/gcc/cp/ChangeLog b/gcc/cp/ChangeLog index b410f3d..1799d8a 100644 --- a/gcc/cp/ChangeLog +++ b/gcc/cp/ChangeLog @@ -1,5 +1,9 @@ 2018-03-27 Jakub Jelinek <jakub@redhat.com> + PR c++/85077 + * cp-gimplify.c (cp_fold) <case CONSTRUCTOR>: For ctors with vector + type call fold to generate VECTOR_CSTs when possible. + PR c++/85076 * tree.c (cp_build_reference_type): If to_type is error_mark_node, return it right away. diff --git a/gcc/cp/cp-gimplify.c b/gcc/cp/cp-gimplify.c index 3edecf2..fd0c37f 100644 --- a/gcc/cp/cp-gimplify.c +++ b/gcc/cp/cp-gimplify.c @@ -2504,6 +2504,8 @@ cp_fold (tree x) CONSTRUCTOR_PLACEHOLDER_BOUNDARY (x) = CONSTRUCTOR_PLACEHOLDER_BOUNDARY (org_x); } + if (VECTOR_TYPE_P (TREE_TYPE (x))) + x = fold (x); break; } case TREE_VEC: diff --git a/gcc/testsuite/ChangeLog b/gcc/testsuite/ChangeLog index 93557dd..ba8ba77 100644 --- a/gcc/testsuite/ChangeLog +++ b/gcc/testsuite/ChangeLog @@ -1,5 +1,8 @@ 2018-03-27 Jakub Jelinek <jakub@redhat.com> + PR c++/85077 + * g++.dg/ext/vector35.C: New test. + PR c++/85061 * g++.dg/ext/builtin-offsetof3.C: New test. diff --git a/gcc/testsuite/g++.dg/ext/vector35.C b/gcc/testsuite/g++.dg/ext/vector35.C new file mode 100644 index 0000000..22ff513 --- /dev/null +++ b/gcc/testsuite/g++.dg/ext/vector35.C @@ -0,0 +1,22 @@ +// PR c++/85077 +// { dg-do compile } +// { dg-options "-Ofast -fdump-tree-forwprop1" } + +typedef float V __attribute__((vector_size (4 * sizeof (float)))); +typedef double W __attribute__((vector_size (2 * sizeof (double)))); + +void +foo (V *y) +{ + V x = *y; + *y = x < 0 ? -x : x; +} + +void +bar (W *y) +{ + W x = *y; + *y = x < 0 ? -x : x; +} + +// { dg-final { scan-tree-dump-times "ABS_EXPR <" 2 "forwprop1" } } |