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re PR middle-end/64415 (ICE: verify_ssa failed / segmentation fault with LTO)

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2015-01-14  Richard Biener  <rguenther@suse.de>

	PR lto/64415
	* tree-inline.c (insert_debug_decl_map): Check destination
	function MAY_HAVE_DEBUG_STMTS.
	(insert_init_debug_bind): Likewise.
	(insert_init_stmt): Remove redundant check.
	(remap_gimple_stmt): Drop debug stmts if the destination
	function has var-tracking assignments disabled.

	* gcc.dg/lto/pr64415_0.c: New testcase.
	* gcc.dg/lto/pr64415_1.c: Likewise.

From-SVN: r219588
This commit is contained in:
Richard Biener 2015-01-14 11:06:18 +00:00 committed by Richard Biener
parent 217c08c571
commit 683750ce09
5 changed files with 53 additions and 3 deletions
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10
gcc/ChangeLog
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@ -1,3 +1,13 @@
2015-01-14 Richard Biener <rguenther@suse.de>
PR lto/64415
* tree-inline.c (insert_debug_decl_map): Check destination
function MAY_HAVE_DEBUG_STMTS.
(insert_init_debug_bind): Likewise.
(insert_init_stmt): Remove redundant check.
(remap_gimple_stmt): Drop debug stmts if the destination
function has var-tracking assignments disabled.
2015-01-14 Martin Liska <mliska@suse.cz>
* ipa-icf-gimple.c (func_checker::compare_operand): Add support for

6
gcc/testsuite/ChangeLog
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@ -1,3 +1,9 @@
2015-01-14 Richard Biener <rguenther@suse.de>
PR lto/64415
* gcc.dg/lto/pr64415_0.c: New testcase.
* gcc.dg/lto/pr64415_1.c: Likewise.
2015-01-14 Martin Liska <mliska@suse.cz>
* gcc.dg/ipa/pr64307.c: New test.

13
gcc/testsuite/gcc.dg/lto/pr64415_0.c Normal file
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@ -0,0 +1,13 @@
/* { dg-lto-do link } */
/* { dg-require-effective-target fpic } */
/* { dg-lto-options { { -O -flto -fpic } } } */
/* { dg-extra-ld-options { -shared } } */
extern void bar(char *, int);
extern char *baz;
void foo()
{
bar(baz, 0);
}

17
gcc/testsuite/gcc.dg/lto/pr64415_1.c Normal file
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@ -0,0 +1,17 @@
/* { dg-options "-g" } */
extern int n;
void bar(char *, int);
inline void bar(char *s, int i)
{
char *p = s;
#ifdef V1
if (i)
#else
if (n)
#endif
*s = 0;
}

10
gcc/tree-inline.c
View File

@ -192,7 +192,7 @@ insert_debug_decl_map (copy_body_data *id, tree key, tree value)
if (!gimple_in_ssa_p (id->src_cfun))
return;
if (!MAY_HAVE_DEBUG_STMTS)
if (!opt_for_fn (id->dst_fn, flag_var_tracking_assignments))
return;
if (!target_for_debug_bind (key))
@ -1348,6 +1348,10 @@ remap_gimple_stmt (gimple stmt, copy_body_data *id)
bool skip_first = false;
gimple_seq stmts = NULL;
if (is_gimple_debug (stmt)
&& !opt_for_fn (id->dst_fn, flag_var_tracking_assignments))
return stmts;
/* Begin by recognizing trees that we'll completely rewrite for the
inlining context. Our output for these trees is completely
different from out input (e.g. RETURN_EXPR is deleted, and morphs
@ -3007,7 +3011,7 @@ insert_init_debug_bind (copy_body_data *id,
if (!gimple_in_ssa_p (id->src_cfun))
return NULL;
if (!MAY_HAVE_DEBUG_STMTS)
if (!opt_for_fn (id->dst_fn, flag_var_tracking_assignments))
return NULL;
tracked_var = target_for_debug_bind (var);
@ -3063,7 +3067,7 @@ insert_init_stmt (copy_body_data *id, basic_block bb, gimple init_stmt)
gsi_insert_after (&si, init_stmt, GSI_NEW_STMT);
gimple_regimplify_operands (init_stmt, &si);
if (!is_gimple_debug (init_stmt) && MAY_HAVE_DEBUG_STMTS)
if (!is_gimple_debug (init_stmt))
{
tree def = gimple_assign_lhs (init_stmt);
insert_init_debug_bind (id, bb, def, def, init_stmt);