diff options
Diffstat (limited to 'gcc48-pr77767.patch')
| -rw-r--r-- | gcc48-pr77767.patch | 56 |
1 files changed, 56 insertions, 0 deletions
diff --git a/gcc48-pr77767.patch b/gcc48-pr77767.patch new file mode 100644 index 0000000..ba80ac1 --- /dev/null +++ b/gcc48-pr77767.patch @@ -0,0 +1,56 @@ +2017-05-30 Jakub Jelinek <jakub@redhat.com> + + Backported from mainline + 2016-12-21 Jakub Jelinek <jakub@redhat.com> + + PR c/77767 + * c-decl.c (grokdeclarator): If *expr is non-NULL, append expression + to *expr instead of overwriting it. + + * gcc.c-torture/execute/pr77767.c: New test. + +--- gcc/c/c-decl.c ++++ gcc/c/c-decl.c +@@ -5409,11 +5409,21 @@ grokdeclarator (const struct c_declarator *declarator, + if (TREE_CODE (type) == ERROR_MARK) + return error_mark_node; + if (expr == NULL) +- expr = &expr_dummy; ++ { ++ expr = &expr_dummy; ++ expr_dummy = NULL_TREE; ++ } + if (expr_const_operands == NULL) + expr_const_operands = &expr_const_operands_dummy; + +- *expr = declspecs->expr; ++ if (declspecs->expr) ++ { ++ if (*expr) ++ *expr = build2 (COMPOUND_EXPR, TREE_TYPE (declspecs->expr), *expr, ++ declspecs->expr); ++ else ++ *expr = declspecs->expr; ++ } + *expr_const_operands = declspecs->expr_const_operands; + + if (decl_context == FUNCDEF) +--- /dev/null ++++ gcc/testsuite/gcc.c-torture/execute/pr77767.c +@@ -0,0 +1,16 @@ ++/* PR c/77767 */ ++ ++void ++foo (int a, int b[a++], int c, int d[c++]) ++{ ++ if (a != 2 || c != 2) ++ __builtin_abort (); ++} ++ ++int ++main () ++{ ++ int e[10]; ++ foo (1, e, 1, e); ++ return 0; ++} |