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Commit ab4ccf20 by Richard Biener Committed by Richard Biener
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re PR tree-optimization/70948 (r235622 caused… 

re PR tree-optimization/70948 (r235622 caused gcc.c-torture/execute/va-arg-pack-1.c execution failure AArch64)

2016-05-06  Richard Biener  <rguenther@suse.de>

	PR tree-optimization/70948
	* tree-ssa-structalias.c (find_func_aliases_for_builtin_call):
	Properly clobber all fields of va_list for __builtin_va_start.

From-SVN: r235963
parent 19aa23d8
Showing with 7 additions and 1 deletions
gcc/ChangeLog
2016-05-06 Richard Biener <rguenther@suse.de>
PR tree-optimization/70948
* tree-ssa-structalias.c (find_func_aliases_for_builtin_call):
Properly clobber all fields of va_list for __builtin_va_start.
2016-05-06 Yuri Rumyantsev <ysrumyan@gmail.com> 2016-05-06 Yuri Rumyantsev <ysrumyan@gmail.com>
PR debug/70935 PR debug/70935
......
gcc/tree-ssa-structalias.c
...@@ -4492,7 +4492,7 @@ find_func_aliases_for_builtin_call (struct function *fn, gcall *t) ...@@ -4492,7 +4492,7 @@ find_func_aliases_for_builtin_call (struct function *fn, gcall *t)
tree valist = gimple_call_arg (t, 0); tree valist = gimple_call_arg (t, 0);
struct constraint_expr rhs, *lhsp; struct constraint_expr rhs, *lhsp;
unsigned i; unsigned i;
get_constraint_for (valist, &lhsc); get_constraint_for_ptr_offset (valist, NULL_TREE, &lhsc);
do_deref (&lhsc); do_deref (&lhsc);
/* The va_list gets access to pointers in variadic /* The va_list gets access to pointers in variadic
arguments. Which we know in the case of IPA analysis arguments. Which we know in the case of IPA analysis
......
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