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| author | Paolo Carlini <paolo.carlini@oracle.com> | 2012-10-31 19:14:39 +0000 |
|---|---|---|
| committer | Paolo Carlini <paolo@gcc.gnu.org> | 2012-10-31 19:14:39 +0000 |
| commit | 03d31730bfa422561a7e62915eb2c304bac27f19 (patch) | |
| tree | d339efb27257d9e65568af0b81ffe366c045baa2 /gcc | |
| parent | 4d64ce5c057fe0d3cd601d3e6b03b76f2989f13d (diff) | |
| download | gcc-03d31730bfa422561a7e62915eb2c304bac27f19.zip gcc-03d31730bfa422561a7e62915eb2c304bac27f19.tar.gz gcc-03d31730bfa422561a7e62915eb2c304bac27f19.tar.bz2 | |
re PR c++/54583 (Spurious warning: value computed is not used with variable-size array)
/cp
2012-10-31 Paolo Carlini <paolo.carlini@oracle.com>
PR c++/54583
* tree.c (build_cplus_array_type): Set TREE_NO_WARNING on the
TYPE_SIZE of VLAs.
/testsuite
2012-10-31 Paolo Carlini <paolo.carlini@oracle.com>
PR c++/54583
* g++.dg/ext/vla13.C: New.
From-SVN: r193043
Diffstat (limited to 'gcc')
| -rw-r--r-- | gcc/cp/ChangeLog | 6 | ||||
| -rw-r--r-- | gcc/cp/tree.c | 4 | ||||
| -rw-r--r-- | gcc/testsuite/ChangeLog | 5 | ||||
| -rw-r--r-- | gcc/testsuite/g++.dg/ext/vla13.C | 8 |
4 files changed, 23 insertions, 0 deletions
diff --git a/gcc/cp/ChangeLog b/gcc/cp/ChangeLog index a1abdde..70d001c 100644 --- a/gcc/cp/ChangeLog +++ b/gcc/cp/ChangeLog @@ -1,3 +1,9 @@ +2012-10-31 Paolo Carlini <paolo.carlini@oracle.com> + + PR c++/54583 + * tree.c (build_cplus_array_type): Set TREE_NO_WARNING on the + TYPE_SIZE of VLAs. + 2012-10-31 Dodji Seketeli <dodji@redhat.com> PR c++/54955 diff --git a/gcc/cp/tree.c b/gcc/cp/tree.c index 8d555c2..bcc2779 100644 --- a/gcc/cp/tree.c +++ b/gcc/cp/tree.c @@ -824,6 +824,10 @@ build_cplus_array_type (tree elt_type, tree index_type) } } + /* Avoid spurious warnings with VLAs (c++/54583). */ + if (TYPE_SIZE (t) && EXPR_P (TYPE_SIZE (t))) + TREE_NO_WARNING (TYPE_SIZE (t)) = 1; + /* Push these needs up so that initialization takes place more easily. */ TYPE_NEEDS_CONSTRUCTING (t) diff --git a/gcc/testsuite/ChangeLog b/gcc/testsuite/ChangeLog index 9bc92df..b32d9f7 100644 --- a/gcc/testsuite/ChangeLog +++ b/gcc/testsuite/ChangeLog @@ -1,3 +1,8 @@ +2012-10-31 Paolo Carlini <paolo.carlini@oracle.com> + + PR c++/54583 + * g++.dg/ext/vla13.C: New. + 2012-10-31 Vladimir Makarov <vmakarov@redhat.com> PR middle-end/55150 diff --git a/gcc/testsuite/g++.dg/ext/vla13.C b/gcc/testsuite/g++.dg/ext/vla13.C new file mode 100644 index 0000000..719c35b --- /dev/null +++ b/gcc/testsuite/g++.dg/ext/vla13.C @@ -0,0 +1,8 @@ +// PR c++/54583 +// { dg-options "-Wunused-value" } + +void fred() +{ + int n=10; + double (*x)[n]; +} |