diff options
| author | jakub <jakub@138bc75d-0d04-0410-961f-82ee72b054a4> | 2016-07-02 06:41:29 +0000 |
|---|---|---|
| committer | jakub <jakub@138bc75d-0d04-0410-961f-82ee72b054a4> | 2016-07-02 06:41:29 +0000 |
| commit | c364d0f389636074f1b1708922d50515f49b9bc4 (patch) | |
| tree | 8613a51002d3befa50a1a23aaf8eeee136366785 /gcc | |
| parent | f6cd819ab296392872e1c5b63347fd4579685e0e (diff) | |
| download | gcc-c364d0f389636074f1b1708922d50515f49b9bc4.tar.gz | |
PR c/71719
* c-typeck.c (mark_exp_read): Handle VIEW_CONVERT_EXPR.
* c-c++-common/Wunused-var-15.c: New test.
git-svn-id: svn+ssh://gcc.gnu.org/svn/gcc/trunk@237937 138bc75d-0d04-0410-961f-82ee72b054a4
Diffstat (limited to 'gcc')
| -rw-r--r-- | gcc/c/ChangeLog | 5 | ||||
| -rw-r--r-- | gcc/c/c-typeck.c | 1 | ||||
| -rw-r--r-- | gcc/testsuite/ChangeLog | 5 | ||||
| -rw-r--r-- | gcc/testsuite/c-c++-common/Wunused-var-15.c | 20 |
4 files changed, 31 insertions, 0 deletions
diff --git a/gcc/c/ChangeLog b/gcc/c/ChangeLog index 7bd112b3bce..41d35470bed 100644 --- a/gcc/c/ChangeLog +++ b/gcc/c/ChangeLog @@ -1,3 +1,8 @@ +2016-07-02 Jakub Jelinek <jakub@redhat.com> + + PR c/71719 + * c-typeck.c (mark_exp_read): Handle VIEW_CONVERT_EXPR. + 2016-06-29 Thomas Schwinge <thomas@codesourcery.com> * c-parser.c (c_parser_pragma) <PRAGMA_OMP_CANCELLATION_POINT>: diff --git a/gcc/c/c-typeck.c b/gcc/c/c-typeck.c index b2435deac06..bafd0d23195 100644 --- a/gcc/c/c-typeck.c +++ b/gcc/c/c-typeck.c @@ -1896,6 +1896,7 @@ mark_exp_read (tree exp) case IMAGPART_EXPR: CASE_CONVERT: case ADDR_EXPR: + case VIEW_CONVERT_EXPR: mark_exp_read (TREE_OPERAND (exp, 0)); break; case COMPOUND_EXPR: diff --git a/gcc/testsuite/ChangeLog b/gcc/testsuite/ChangeLog index 08db9d19ed1..ced6ca7a780 100644 --- a/gcc/testsuite/ChangeLog +++ b/gcc/testsuite/ChangeLog @@ -1,3 +1,8 @@ +2016-07-02 Jakub Jelinek <jakub@redhat.com> + + PR c/71719 + * c-c++-common/Wunused-var-15.c: New test. + 2016-07-01 Jakub Jelinek <jakub@redhat.com> PR fortran/71687 diff --git a/gcc/testsuite/c-c++-common/Wunused-var-15.c b/gcc/testsuite/c-c++-common/Wunused-var-15.c new file mode 100644 index 00000000000..b0f680a06bd --- /dev/null +++ b/gcc/testsuite/c-c++-common/Wunused-var-15.c @@ -0,0 +1,20 @@ +/* PR c/71719 */ +/* { dg-do compile } */ +/* { dg-options "-Wunused -W -Wno-psabi" } */ + +typedef unsigned V __attribute__ ((vector_size (16))); + +void bar (unsigned); + +V x; + +void +foo (V v) /* { dg-bogus "set but not used" } */ +{ + bar (v[0]); + V w = x; /* { dg-bogus "set but not used" } */ + bar (w[1]); +} + +/* Ignore a warning that is irrelevant to the purpose of this test. */ +/* { dg-prune-output ".*GCC vector passed by reference.*" } */ |