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Commit fa30ba99 by Jakub Jelinek
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re PR testsuite/82997 (gcc.dg/cpp/sysmac1.c and gcc.dg/cpp/macsyntx.c fail starting with r254707) 

	PR testsuite/82997
	* gcc.dg/cpp/macsyntx.c (var1, rest): Don't expect
	"requires at least one" warning.
	* gcc.dg/cpp/sysmac1.c (foo): Likewise.
	* gcc.dg/cpp/macsyntx2.c: New test.
	* gcc.dg/cpp/sysmac3.c: New test.
	* gcc.dg/cpp/sysmac3.h: New file.

From-SVN: r254857
parent caed5c92
Showing with 126 additions and 8 deletions
gcc/ChangeLog
2017-11-15 Qing Zhao <qing.zhao@oracle.com>
2017-11-15 Qing Zhao <qing.zhao@oracle.com>
PR middle-end/78809
* gimple-fold.c (gimple_fold_builtin_string_compare): Add handling
gcc/testsuite/ChangeLog
2017-11-15 Qing Zhao <qing.zhao@oracle.com <mailto:qing.zhao@oracle.com>>
2017-11-17 Jakub Jelinek <jakub@redhat.com>
PR testsuite/82997
* gcc.dg/cpp/macsyntx.c (var1, rest): Don't expect
"requires at least one" warning.
* gcc.dg/cpp/sysmac1.c (foo): Likewise.
* gcc.dg/cpp/macsyntx2.c: New test.
* gcc.dg/cpp/sysmac3.c: New test.
* gcc.dg/cpp/sysmac3.h: New file.
2017-11-15 Qing Zhao <qing.zhao@oracle.com>
PR middle-end/78809
* gcc.dg/strcmpopt_1.c: New test.
......
gcc/testsuite/gcc.dg/cpp/macsyntx.c
/* Copyright (C) 2000 Free Software Foundation, Inc. */
/* Copyright (C) 2000-2017 Free Software Foundation, Inc. */
/* { dg-do preprocess } */
/* { dg-options "-pedantic -std=gnu99" } */
......@@ -51,15 +51,15 @@ one(ichi\
two(ichi) /* { dg-error "requires 2" } */
var0() /* OK. */
var0(ichi) /* OK. */
var1() /* { dg-warning "requires at least one" } */
var1(ichi) /* { dg-warning "requires at least one" } */
var1() /* { dg-bogus "requires at least one" } */
var1(ichi) /* { dg-bogus "requires at least one" } */
var1(ichi, ni) /* OK. */
/* This tests two oddities of GNU rest args - omitting a comma is OK,
and backtracking a token on pasting an empty rest args. */
#define rest(x, y...) x ## y /* { dg-warning "ISO C" } */
rest(ichi,) /* OK. */
rest(ichi) /* { dg-warning "requires at least one" } */
rest(ichi) /* { dg-bogus "requires at least one" } */
#if 23 != rest(2, 3) /* OK, no warning. */
#error 23 != 23 !!
#endif
......
gcc/testsuite/gcc.dg/cpp/macsyntx2.c 0 → 100644
/* Copyright (C) 2000-2017 Free Software Foundation, Inc. */
/* { dg-do preprocess } */
/* { dg-options "-pedantic -std=c99" } */
/* Tests macro syntax, for both definition and invocation, including:-
o Full range of macro definition semantics.
o No. of arguments supplied to function-like macros.
o Odd GNU rest args behavior.
o Macro arguments do not flow into the rest of the file. */
/* Test basic macro definition syntax. The macros are all called
"foo" deliberately to provoke an (excess) redefinition warning in
case the macros succeed in being entered in the macro hash table
despite being an error.
Split a couple of the lines to check that the errors appear on the
right line (i.e. are associated with the correct token). */
#define ; /* { dg-error "identifier" } */
#define SEMI; /* { dg-warning "space" } */
#define foo(X /* { dg-error "missing" } */
#define foo\
(X,) /* { dg-error "parameter name" } */
#define foo(, X) /* { dg-error "parameter name" } */
#define foo(X, X) /* { dg-error "duplicate" } */
#define foo(X Y) /* { dg-error "comma" } */
#define foo(() /* { dg-error "may not appear" } */
#define foo(..., X) /* { dg-error "missing" } */
#define foo \
__VA_ARGS__ /* { dg-warning "__VA_ARGS__" } */
#define goo(__VA_ARGS__) /* { dg-warning "__VA_ARGS__" } */
#define hoo(...) __VA_ARGS__ /* OK. */
#define __VA_ARGS__ /* { dg-warning "__VA_ARGS__" } */
__VA_ARGS__ /* { dg-warning "__VA_ARGS__" } */
/* test # of supplied arguments. */
#define none()
#define one(x)
#define two(x, y)
#define var0(...)
#define var1(x, ...)
none() /* OK. */
none(ichi) /* { dg-error "passed 1" } */
one() /* OK. */
one(ichi) /* OK. */
one(ichi\
, ni) /* { dg-error "passed 2" } */
two(ichi) /* { dg-error "requires 2" } */
var0() /* OK. */
var0(ichi) /* OK. */
var1() /* { dg-warning "requires at least one" } */
var1(ichi) /* { dg-warning "requires at least one" } */
var1(ichi, ni) /* OK. */
/* This tests two oddities of GNU rest args - omitting a comma is OK,
and backtracking a token on pasting an empty rest args. */
#define rest(x, y...) x ## y /* { dg-warning "ISO C" } */
rest(ichi,) /* OK. */
rest(ichi) /* { dg-warning "requires at least one" } */
#if 23 != rest(2, 3) /* OK, no warning. */
#error 23 != 23 !!
#endif
/* Test that we don't allow arguments to flow into the rest of the
file. */
#define half_invocation do_nowt(2
#define do_nowt(x) x
half_invocation ) /* OK. */
do_nowt (half_invocation)) /* { dg-error "unterminated argument" } */
gcc/testsuite/gcc.dg/cpp/sysmac1.c
/* Copyright (C) 2001 Free Software Foundation, Inc. */
/* Copyright (C) 2001-2017 Free Software Foundation, Inc. */
/* { dg-do preprocess } */
/* { dg-options "-std=gnu99 -pedantic -Wtraditional -ftrack-macro-expansion=0" } */
......@@ -22,5 +22,5 @@
(str); /* { dg-warning "used with arguments" } */
(sys_str); /* { dg-bogus "used with arguments" } */
foo (one_arg); /* { dg-warning "requires at least one" } */
foo (one_arg); /* { dg-bogus "requires at least one" } */
sys_foo (one_arg); /* { dg-bogus "requires at least one" } */
gcc/testsuite/gcc.dg/cpp/sysmac3.c 0 → 100644
/* Copyright (C) 2001-2017 Free Software Foundation, Inc. */
/* { dg-do preprocess } */
/* { dg-options "-std=c99 -pedantic -Wtraditional -ftrack-macro-expansion=0" } */
/* Tests diagnostics are suppressed for some macros defined in system
headers. */
/* Source: Neil Booth, 15 Jan 2001. */
#include "sysmac3.h"
#define uint 1U
#define str(x) x
#define foo(x, y...) bar(x, y) /* { dg-warning "named variadic macros" } */
#if uint /* { dg-warning "traditional C rejects" } */
#endif
#if sys_uint /* { dg-bogus "traditional C rejects" } */
#endif
(str); /* { dg-warning "used with arguments" } */
(sys_str); /* { dg-bogus "used with arguments" } */
foo (one_arg); /* { dg-warning "requires at least one" } */
sys_foo (one_arg); /* { dg-bogus "requires at least one" } */
gcc/testsuite/gcc.dg/cpp/sysmac3.h 0 → 100644
/* Indented to avoid "suggest hiding ..." warnings. */
#pragma GCC system_header
#define sys_uint 1U
#define sys_str(x) x
#define sys_foo(x, y...) bar (x, y)
#define sys_uint 1U
#define sys_fl 1.0f
#define sys_ld 1.0L
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