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-rw-r--r--gcc/builtins.c57
1 files changed, 57 insertions, 0 deletions
diff --git a/gcc/builtins.c b/gcc/builtins.c
index 1eb6cfc..5befd42 100644
--- a/gcc/builtins.c
+++ b/gcc/builtins.c
@@ -10063,6 +10063,15 @@ fold_builtin_1 (tree fndecl, tree arg0, bool ignore)
case BUILT_IN_ISNAND128:
return fold_builtin_classify (fndecl, arg0, BUILT_IN_ISNAN);
+ case BUILT_IN_ISNORMAL:
+ if (!validate_arg (arg0, REAL_TYPE))
+ {
+ error ("non-floating-point argument to function %qs",
+ IDENTIFIER_POINTER (DECL_NAME (fndecl)));
+ return error_mark_node;
+ }
+ break;
+
case BUILT_IN_PRINTF:
case BUILT_IN_PRINTF_UNLOCKED:
case BUILT_IN_VPRINTF:
@@ -10408,7 +10417,55 @@ fold_builtin_4 (tree fndecl, tree arg0, tree arg1, tree arg2, tree arg3,
static tree
fold_builtin_n (tree fndecl, tree *args, int nargs, bool ignore)
{
+ enum built_in_function fcode = DECL_FUNCTION_CODE (fndecl);
tree ret = NULL_TREE;
+
+ /* Verify the number of arguments for type-generic and thus variadic
+ builtins. */
+ switch (fcode)
+ {
+ case BUILT_IN_ISFINITE:
+ case BUILT_IN_ISINF:
+ case BUILT_IN_ISNAN:
+ case BUILT_IN_ISNORMAL:
+ if (nargs < 1)
+ {
+ error ("too few arguments to function %qs",
+ IDENTIFIER_POINTER (DECL_NAME (fndecl)));
+ return error_mark_node;
+ }
+ else if (nargs > 1)
+ {
+ error ("too many arguments to function %qs",
+ IDENTIFIER_POINTER (DECL_NAME (fndecl)));
+ return error_mark_node;
+ }
+ break;
+
+ case BUILT_IN_ISGREATER:
+ case BUILT_IN_ISGREATEREQUAL:
+ case BUILT_IN_ISLESS:
+ case BUILT_IN_ISLESSEQUAL:
+ case BUILT_IN_ISLESSGREATER:
+ case BUILT_IN_ISUNORDERED:
+ if (nargs < 2)
+ {
+ error ("too few arguments to function %qs",
+ IDENTIFIER_POINTER (DECL_NAME (fndecl)));
+ return error_mark_node;
+ }
+ else if (nargs > 2)
+ {
+ error ("too many arguments to function %qs",
+ IDENTIFIER_POINTER (DECL_NAME (fndecl)));
+ return error_mark_node;
+ }
+ break;
+
+ default:
+ break;
+ }
+
switch (nargs)
{
case 0: