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re PR c/71574 (ICE on code with alloc_align attribute on x86_64-linux-gnu: in default_conversion, at c/c-typeck.c:2126) 

PR c/71574
	* c-common.c (handle_alloc_align_attribute): Also check FUNCTION_DECL.

	* c-c++-common/pr71574.c: New test.

From-SVN: r238859
This commit is contained in:
Marek Polacek 2016-07-29 11:28:57 +00:00 committed by Marek Polacek
parent bb3aa3f830
commit 78169471c9
4 changed files with 24 additions and 1 deletions
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5
gcc/c-family/ChangeLog
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@ -1,3 +1,8 @@
2016-07-29 Marek Polacek <polacek@redhat.com>
PR c/71574
* c-common.c (handle_alloc_align_attribute): Also check FUNCTION_DECL.
2016-07-28 Martin Liska <mliska@suse.cz>
PR gcov-profile/68025

3
gcc/c-family/c-common.c
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@ -8370,7 +8370,8 @@ handle_alloc_align_attribute (tree *node, tree, tree args, int,
{
unsigned arg_count = type_num_arguments (*node);
tree position = TREE_VALUE (args);
if (position && TREE_CODE (position) != IDENTIFIER_NODE)
if (position && TREE_CODE (position) != IDENTIFIER_NODE
&& TREE_CODE (position) != FUNCTION_DECL)
position = default_conversion (position);
if (!tree_fits_uhwi_p (position)

5
gcc/testsuite/ChangeLog
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@ -1,3 +1,8 @@
2016-07-29 Marek Polacek <polacek@redhat.com>
PR c/71574
* c-c++-common/pr71574.c: New test.
2016-07-29 Kugan Vivekanandarajah <kuganv@linaro.org>
PR middle-end/68217

12
gcc/testsuite/c-c++-common/pr71574.c Normal file
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@ -0,0 +1,12 @@
/* PR c/71574 */
/* { dg-do compile } */
int fn1 (void);
int fn2 (void) __attribute__ ((alloc_align (fn1))); /* { dg-warning "parameter outside range" } */
int fn3 (void) __attribute__ ((alloc_size (fn1))); /* { dg-warning "parameter outside range" } */
int fn4 (void) __attribute__ ((assume_aligned (fn1))); /* { dg-warning "not integer constant" } */
int fn5 (char *, char *) __attribute__((nonnull (fn1))); /* { dg-error "nonnull argument has invalid operand" } */
int fn6 (const char *, ...) __attribute__ ((sentinel (fn1))); /* { dg-warning "not an integer constant" } */
typedef int __attribute__((vector_size (fn1))) v4si; /* { dg-warning "attribute ignored" } */
typedef int T __attribute__((aligned (fn1))); /* { dg-error "requested alignment is not" } */