diff options
| author | pinskia <pinskia@138bc75d-0d04-0410-961f-82ee72b054a4> | 2006-01-26 14:59:26 +0000 |
|---|---|---|
| committer | pinskia <pinskia@138bc75d-0d04-0410-961f-82ee72b054a4> | 2006-01-26 14:59:26 +0000 |
| commit | ee7d4d6a9eb3853a384963475e9540d8087ca5cd (patch) | |
| tree | 3ddf13d99d2fe455060fa7801f66ca377299cd4c /gcc/c-common.c | |
| parent | 07d32e0113094fb014b19f975597326eb9505233 (diff) | |
| download | gcc-ee7d4d6a9eb3853a384963475e9540d8087ca5cd.tar.gz | |
2006-01-26 Andrew Pinski <pinskia@physics.uc.edu>
PR C/25861
* c-common.c (c_common_truthvalue_conversion) <case ADDR_EXPR>:
Use a new variable, inner. PARM_DECLs are always non-weak.
2006-01-26 Andrew Pinski <pinskia@physics.uc.edu>
PR C/25861
* gcc.c-torture/compile/pr25861.c: New test.
git-svn-id: svn+ssh://gcc.gnu.org/svn/gcc/trunk@110256 138bc75d-0d04-0410-961f-82ee72b054a4
Diffstat (limited to 'gcc/c-common.c')
| -rw-r--r-- | gcc/c-common.c | 15 |
1 files changed, 8 insertions, 7 deletions
diff --git a/gcc/c-common.c b/gcc/c-common.c index 60035ea601b..fe99dfb24af 100644 --- a/gcc/c-common.c +++ b/gcc/c-common.c @@ -2456,25 +2456,26 @@ c_common_truthvalue_conversion (tree expr) case ADDR_EXPR: { - if (DECL_P (TREE_OPERAND (expr, 0)) - && !DECL_WEAK (TREE_OPERAND (expr, 0))) + tree inner = TREE_OPERAND (expr, 0); + if (DECL_P (inner) + && (TREE_CODE (inner) == PARM_DECL || !DECL_WEAK (inner))) { /* Common Ada/Pascal programmer's mistake. We always warn about this since it is so bad. */ warning (OPT_Walways_true, "the address of %qD, will always evaluate as %<true%>", - TREE_OPERAND (expr, 0)); + inner); return truthvalue_true_node; } /* If we are taking the address of an external decl, it might be zero if it is weak, so we cannot optimize. */ - if (DECL_P (TREE_OPERAND (expr, 0)) - && DECL_EXTERNAL (TREE_OPERAND (expr, 0))) + if (DECL_P (inner) + && DECL_EXTERNAL (inner)) break; - if (TREE_SIDE_EFFECTS (TREE_OPERAND (expr, 0))) + if (TREE_SIDE_EFFECTS (inner)) return build2 (COMPOUND_EXPR, truthvalue_type_node, - TREE_OPERAND (expr, 0), truthvalue_true_node); + inner, truthvalue_true_node); else return truthvalue_true_node; } |