Jakub, As you requested in the discussion of my arithmetic overflow built-in patch, attached is the subset of the patch to make consistent with other such diagnostics the text of the error message issued for insufficient numbers of arguments in calls to built-in functions such as __builtin_add_overflow, __builtin_constant_p, and others.
Thanks Martin
PR c/70883 - inconsistent error message for calls to __builtin_add_overflow with too few arguments gcc/c-family/ChangeLog: 2016-06-01 Martin Sebor <mse...@redhat.com> PR c/70883 * c-common.c (builtin_function_validate_nargs): Make text of error message consistent with others like it. gcc/testsuite/ChangeLog: 2016-06-01 Martin Sebor <mse...@redhat.com> PR c/70883 * c-c++-common/builtin-arith-overflow-1.c: Adjust diagnostic text. * gcc.dg/builtin-constant_p-1.c: Same. * gcc.dg/builtins-error.c: Same. * gcc.dg/pr70859.c: Same. Index: gcc/c-family/c-common.c =================================================================== --- gcc/c-family/c-common.c (revision 237007) +++ gcc/c-family/c-common.c (working copy) @@ -9805,7 +9805,7 @@ builtin_function_validate_nargs (locatio { if (nargs < required) { - error_at (loc, "not enough arguments to function %qE", fndecl); + error_at (loc, "too few arguments to function %qE", fndecl); return false; } else if (nargs > required) Index: gcc/testsuite/c-c++-common/builtin-arith-overflow-1.c =================================================================== --- gcc/testsuite/c-c++-common/builtin-arith-overflow-1.c (revision 237007) +++ gcc/testsuite/c-c++-common/builtin-arith-overflow-1.c (working copy) @@ -3,9 +3,9 @@ int f1 (void) { - int x = __builtin_add_overflow (); /* { dg-error "not enough arguments to function" } */ - x += __builtin_sub_overflow (); /* { dg-error "not enough arguments to function" } */ - x += __builtin_mul_overflow (); /* { dg-error "not enough arguments to function" } */ + int x = __builtin_add_overflow (); /* { dg-error "too few arguments to function" } */ + x += __builtin_sub_overflow (); /* { dg-error "too few arguments to function" } */ + x += __builtin_mul_overflow (); /* { dg-error "too few arguments to function" } */ return x; } Index: gcc/testsuite/gcc.dg/builtin-constant_p-1.c =================================================================== --- gcc/testsuite/gcc.dg/builtin-constant_p-1.c (revision 237007) +++ gcc/testsuite/gcc.dg/builtin-constant_p-1.c (working copy) @@ -2,9 +2,9 @@ int main() { - if (__builtin_constant_p ()) /* { dg-error "not enough" } */ + if (__builtin_constant_p ()) /* { dg-error "too few arguments" } */ return 0; - if (__builtin_constant_p (5, 6)) /* { dg-error "too many" } */ + if (__builtin_constant_p (5, 6)) /* { dg-error "too many arguments" } */ return 1; return 0; } Index: gcc/testsuite/gcc.dg/builtins-error.c =================================================================== --- gcc/testsuite/gcc.dg/builtins-error.c (revision 237007) +++ gcc/testsuite/gcc.dg/builtins-error.c (working copy) @@ -23,19 +23,19 @@ int test1(struct X x) int test2(double x) { - if (x == 1) return __builtin_fpclassify(1,2,3,4,5); /* { dg-error "not enough arguments" } */ - if (x == 2) return __builtin_isfinite(); /* { dg-error "not enough arguments" } */ - if (x == 3) return __builtin_isinf_sign(); /* { dg-error "not enough arguments" } */ - if (x == 4) return __builtin_isinf(); /* { dg-error "not enough arguments" } */ - if (x == 5) return __builtin_isnan(); /* { dg-error "not enough arguments" } */ - if (x == 6) return __builtin_isnormal(); /* { dg-error "not enough arguments" } */ - if (x == 7) return __builtin_isgreater(x); /* { dg-error "not enough arguments" } */ - if (x == 8) return __builtin_isgreaterequal(x); /* { dg-error "not enough arguments" } */ - if (x == 9) return __builtin_isless(x); /* { dg-error "not enough arguments" } */ - if (x == 10) return __builtin_islessequal(x); /* { dg-error "not enough arguments" } */ - if (x == 11) return __builtin_islessgreater(x); /* { dg-error "not enough arguments" } */ - if (x == 12) return __builtin_isunordered(x); /* { dg-error "not enough arguments" } */ - if (x == 13) return __builtin_signbit(); /* { dg-error "not enough arguments" } */ + if (x == 1) return __builtin_fpclassify(1,2,3,4,5); /* { dg-error "too few arguments" } */ + if (x == 2) return __builtin_isfinite(); /* { dg-error "too few arguments" } */ + if (x == 3) return __builtin_isinf_sign(); /* { dg-error "too few arguments" } */ + if (x == 4) return __builtin_isinf(); /* { dg-error "too few arguments" } */ + if (x == 5) return __builtin_isnan(); /* { dg-error "too few arguments" } */ + if (x == 6) return __builtin_isnormal(); /* { dg-error "too few arguments" } */ + if (x == 7) return __builtin_isgreater(x); /* { dg-error "too few arguments" } */ + if (x == 8) return __builtin_isgreaterequal(x); /* { dg-error "too few arguments" } */ + if (x == 9) return __builtin_isless(x); /* { dg-error "too few arguments" } */ + if (x == 10) return __builtin_islessequal(x); /* { dg-error "too few arguments" } */ + if (x == 11) return __builtin_islessgreater(x); /* { dg-error "too few arguments" } */ + if (x == 12) return __builtin_isunordered(x); /* { dg-error "too few arguments" } */ + if (x == 13) return __builtin_signbit(); /* { dg-error "too few arguments" } */ return 0; } Index: gcc/testsuite/gcc.dg/pr70859.c =================================================================== --- gcc/testsuite/gcc.dg/pr70859.c (revision 237007) +++ gcc/testsuite/gcc.dg/pr70859.c (working copy) @@ -41,19 +41,19 @@ fn0 (int n) int fn1 (void) { - if (__builtin_constant_p ()) /* { dg-error "7:not enough" } */ + if (__builtin_constant_p ()) /* { dg-error "7:too few" } */ return 0; if (__builtin_constant_p (1, 2)) /* { dg-error "7:too many" } */ return 1; - if (__builtin_isfinite ()) /* { dg-error "7:not enough" } */ + if (__builtin_isfinite ()) /* { dg-error "7:too few" } */ return 3; if (__builtin_isfinite (1, 2)) /* { dg-error "7:too many" } */ return 4; - if (__builtin_isless (0)) /* { dg-error "7:not enough" } */ + if (__builtin_isless (0)) /* { dg-error "7:too few" } */ return 5; if (__builtin_isless (1, 2, 3)) /* { dg-error "7:too many" } */ return 6; - if (__builtin_fpclassify (1, 2, 3, 4, 5)) /* { dg-error "7:not enough" } */ + if (__builtin_fpclassify (1, 2, 3, 4, 5)) /* { dg-error "7:too few" } */ return 7; if (__builtin_fpclassify (1, 2, 3, 4, 5, r, 6)) /* { dg-error "7:too many" } */ return 8; @@ -61,7 +61,7 @@ fn1 (void) return 9; if (__builtin_assume_aligned (p, r, p, p)) /* { dg-error "7:too many" } */ return 10; - if (__builtin_add_overflow ()) /* { dg-error "7:not enough" } */ + if (__builtin_add_overflow ()) /* { dg-error "7:too few" } */ return 11; if (__builtin_add_overflow (1, 2, 3, &r)) /* { dg-error "7:too many" } */ return 12;