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| author | Martin Liska <mliska@suse.cz> | 2018-10-04 16:44:53 +0200 |
|---|---|---|
| committer | Martin Liska <marxin@gcc.gnu.org> | 2018-10-04 14:44:53 +0000 |
| commit | 96c545e5ed9d50b2af2d1d5a6a49b7ff1baa0d85 (patch) | |
| tree | 3cb97d2117782805b63df0e3c56ff104071742f3 /gcc | |
| parent | b8ce8129a560f64f8b2855c4a3812b7c3c0ebf3f (diff) | |
| download | gcc-96c545e5ed9d50b2af2d1d5a6a49b7ff1baa0d85.zip gcc-96c545e5ed9d50b2af2d1d5a6a49b7ff1baa0d85.tar.gz gcc-96c545e5ed9d50b2af2d1d5a6a49b7ff1baa0d85.tar.bz2 | |
Error about alias attribute with body definition (PR c/87483).
2018-10-04 Martin Liska <mliska@suse.cz>
PR c/87483
* cgraphunit.c (process_function_and_variable_attributes):
Warn about a function with alias attribute and a body.
2018-10-04 Martin Liska <mliska@suse.cz>
PR c/87483
* gcc.dg/pr87483.c: New test.
From-SVN: r264846
Diffstat (limited to 'gcc')
| -rw-r--r-- | gcc/ChangeLog | 6 | ||||
| -rw-r--r-- | gcc/cgraphunit.c | 6 | ||||
| -rw-r--r-- | gcc/testsuite/ChangeLog | 5 | ||||
| -rw-r--r-- | gcc/testsuite/gcc.dg/pr87483.c | 16 |
4 files changed, 33 insertions, 0 deletions
diff --git a/gcc/ChangeLog b/gcc/ChangeLog index f7a15e3..0340fa3 100644 --- a/gcc/ChangeLog +++ b/gcc/ChangeLog @@ -1,5 +1,11 @@ 2018-10-04 Martin Liska <mliska@suse.cz> + PR c/87483 + * cgraphunit.c (process_function_and_variable_attributes): + Warn about a function with alias attribute and a body. + +2018-10-04 Martin Liska <mliska@suse.cz> + PR ipa/82625 * multiple_target.c (redirect_to_specific_clone): New function. (ipa_target_clone): Use it. diff --git a/gcc/cgraphunit.c b/gcc/cgraphunit.c index c0baaea..146855f 100644 --- a/gcc/cgraphunit.c +++ b/gcc/cgraphunit.c @@ -784,6 +784,12 @@ process_function_and_variable_attributes (cgraph_node *first, DECL_ATTRIBUTES (decl) = remove_attribute ("weakref", DECL_ATTRIBUTES (decl)); } + else if (lookup_attribute ("alias", DECL_ATTRIBUTES (decl)) + && node->definition + && !node->alias) + warning_at (DECL_SOURCE_LOCATION (node->decl), OPT_Wattributes, + "%<alias%> attribute ignored" + " because function is defined"); if (lookup_attribute ("always_inline", DECL_ATTRIBUTES (decl)) && !DECL_DECLARED_INLINE_P (decl) diff --git a/gcc/testsuite/ChangeLog b/gcc/testsuite/ChangeLog index ee8a184..7da77d1 100644 --- a/gcc/testsuite/ChangeLog +++ b/gcc/testsuite/ChangeLog @@ -1,5 +1,10 @@ 2018-10-04 Martin Liska <mliska@suse.cz> + PR c/87483 + * gcc.dg/pr87483.c: New test. + +2018-10-04 Martin Liska <mliska@suse.cz> + PR ipa/82625 * g++.dg/ext/pr82625.C: New test. diff --git a/gcc/testsuite/gcc.dg/pr87483.c b/gcc/testsuite/gcc.dg/pr87483.c new file mode 100644 index 0000000..d3af8df --- /dev/null +++ b/gcc/testsuite/gcc.dg/pr87483.c @@ -0,0 +1,16 @@ +/* PR c/87483 */ +/* { dg-require-alias "" } */ + +int f (void) { return 0; } +__attribute__ ((alias ("f"))) int g () { return 1; } /* { dg-warning "attribute ignored because function is defined" } */ +__attribute__ ((alias ("f"))) int g2 (); + +int h (void) +{ + return g2 (); +} + +int main() +{ + return h(); +} |