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| author | Tom de Vries <tom@codesourcery.com> | 2015-05-13 09:06:18 +0000 |
|---|---|---|
| committer | Tom de Vries <vries@gcc.gnu.org> | 2015-05-13 09:06:18 +0000 |
| commit | fcd424cecbe8874404fc92520954ec806e7886fc (patch) | |
| tree | 329af8074710a22884ff6b12ff17c6f07afbea73 /gcc/tree-stdarg.c | |
| parent | 7947dd0bdf9cfe2a704355b1e5d7c7f786c67b9b (diff) | |
| download | gcc-fcd424cecbe8874404fc92520954ec806e7886fc.zip gcc-fcd424cecbe8874404fc92520954ec806e7886fc.tar.gz gcc-fcd424cecbe8874404fc92520954ec806e7886fc.tar.bz2 | |
Gimplify va_arg ap based on do_deref
2015-05-13 Tom de Vries <tom@codesourcery.com>
PR tree-optimization/66010
* gimplify.h (gimplify_va_arg_internal): Remove declaration.
* gimplify.c (gimplify_va_arg_internal): Remove and inline into ...
* tree-stdarg.c (expand_ifn_va_arg_1): ... here. Choose between lval
and rval based on do_deref.
From-SVN: r223120
Diffstat (limited to 'gcc/tree-stdarg.c')
| -rw-r--r-- | gcc/tree-stdarg.c | 9 |
1 files changed, 8 insertions, 1 deletions
diff --git a/gcc/tree-stdarg.c b/gcc/tree-stdarg.c index 3bede7e..f8ff70a 100644 --- a/gcc/tree-stdarg.c +++ b/gcc/tree-stdarg.c @@ -1059,7 +1059,14 @@ expand_ifn_va_arg_1 (function *fun) push_gimplify_context (false); - expr = gimplify_va_arg_internal (ap, type, &pre, &post); + /* Make it easier for the backends by protecting the valist argument + from multiple evaluations. */ + if (do_deref == integer_one_node) + gimplify_expr (&ap, &pre, &post, is_gimple_min_lval, fb_lvalue); + else + gimplify_expr (&ap, &pre, &post, is_gimple_val, fb_rvalue); + + expr = targetm.gimplify_va_arg_expr (ap, type, &pre, &post); lhs = gimple_call_lhs (stmt); if (lhs != NULL_TREE) |