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re PR lto/43455 (ICE in fold_convert_loc, at fold-const.c:2670 with -O2 -flto) 

2010-04-23  Richard Guenther  <rguenther@suse.de>

	PR lto/43455
	* tree-inline.c (tree_can_inline_p): Also check compatibility
	of return types.

	* gcc.dg/lto/20100423-1_0.c: New testcase.
	* gcc.dg/lto/20100423-1_1.c: Likewise.

From-SVN: r158669
This commit is contained in:
Richard Guenther 2010-04-23 15:18:24 +00:00 committed by Richard Biener
parent 7762001162
commit 8fd8a06f0e
5 changed files with 40 additions and 2 deletions
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6
gcc/ChangeLog
View File

@ -1,3 +1,9 @@
2010-04-23 Richard Guenther <rguenther@suse.de>
PR lto/43455
* tree-inline.c (tree_can_inline_p): Also check compatibility
of return types.
2010-04-23 Martin Jambor <mjambor@suse.cz>
PR tree-optimization/43846

6
gcc/testsuite/ChangeLog
View File

@ -1,3 +1,9 @@
2010-04-23 Richard Guenther <rguenther@suse.de>
PR lto/43455
* gcc.dg/lto/20100423-1_0.c: New testcase.
* gcc.dg/lto/20100423-1_1.c: Likewise.
2010-04-23 Martin Jambor <mjambor@suse.cz>
PR tree-optimization/43846

11
gcc/testsuite/gcc.dg/lto/20100423-1_0.c Normal file
View File

@ -0,0 +1,11 @@
/* { dg-lto-do run } */
/* { dg-lto-options {{-O2 -flto}} } */
struct bar {int x;};
extern struct bar foo(void);
int main()
{
struct bar x=foo();
return 0;
}

7
gcc/testsuite/gcc.dg/lto/20100423-1_1.c Normal file
View File

@ -0,0 +1,7 @@
typedef struct{int x;} bar;
bar foo (void)
{
bar x;
return x;
}

12
gcc/tree-inline.c
View File

@ -5082,7 +5082,7 @@ tree_can_inline_p (struct cgraph_edge *e)
return false;
}
#endif
tree caller, callee;
tree caller, callee, lhs;
caller = e->caller->decl;
callee = e->callee->decl;
@ -5108,8 +5108,16 @@ tree_can_inline_p (struct cgraph_edge *e)
return false;
}
/* Do not inline calls where we cannot triviall work around mismatches
in argument or return types. */
if (e->call_stmt
&& !gimple_check_call_args (e->call_stmt))
&& ((DECL_RESULT (callee)
&& !DECL_BY_REFERENCE (DECL_RESULT (callee))
&& (lhs = gimple_call_lhs (e->call_stmt)) != NULL_TREE
&& !useless_type_conversion_p (TREE_TYPE (DECL_RESULT (callee)),
TREE_TYPE (lhs))
&& !fold_convertible_p (TREE_TYPE (DECL_RESULT (callee)), lhs))
|| !gimple_check_call_args (e->call_stmt)))
{
e->inline_failed = CIF_MISMATCHED_ARGUMENTS;
gimple_call_set_cannot_inline (e->call_stmt, true);