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Mon, 20 Nov 2023 09:56:07 +0000 (UTC) Received: from oldenburg.str.redhat.com (unknown [10.2.16.29]) by smtp.corp.redhat.com (Postfix) with ESMTPS id E5CDB2026D4C for ; Mon, 20 Nov 2023 09:56:05 +0000 (UTC) From: Florian Weimer To: gcc-patches@gcc.gnu.org Subject: [PATCH v3 04/11] Add tests for validating future C permerrors In-Reply-To: Message-ID: <39c669e5eb8d904ce59ad18f3cd0368959ec067b.1700473918.git.fweimer@redhat.com> References: X-From-Line: 39c669e5eb8d904ce59ad18f3cd0368959ec067b Mon Sep 17 00:00:00 2001 Date: Mon, 20 Nov 2023 10:56:03 +0100 User-Agent: Gnus/5.13 (Gnus v5.13) Emacs/28.3 (gnu/linux) MIME-Version: 1.0 X-Scanned-By: MIMEDefang 3.4.1 on 10.11.54.4 X-Mimecast-Spam-Score: 0 X-Mimecast-Originator: redhat.com X-Spam-Status: No, score=-10.6 required=5.0 tests=BAYES_00, DKIMWL_WL_HIGH, DKIM_SIGNED, DKIM_VALID, DKIM_VALID_AU, DKIM_VALID_EF, GIT_PATCH_0, RCVD_IN_DNSWL_NONE, RCVD_IN_MSPIKE_H4, RCVD_IN_MSPIKE_WL, SPF_HELO_NONE, SPF_NONE, TXREP, T_SCC_BODY_TEXT_LINE autolearn=ham autolearn_force=no version=3.4.6 X-Spam-Checker-Version: SpamAssassin 3.4.6 (2021-04-09) on server2.sourceware.org X-BeenThere: gcc-patches@gcc.gnu.org X-Mailman-Version: 2.1.30 Precedence: list List-Id: Gcc-patches mailing list List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Errors-To: gcc-patches-bounces+ouuuleilei=gmail.com@gcc.gnu.org X-getmail-retrieved-from-mailbox: INBOX X-GMAIL-THRID: 1783076484058304357 X-GMAIL-MSGID: 1783076484058304357 The dg-error directives for gcc.dg/permerror-system.c can be generated using (for the most part at least): perl -ne 'print if s,.*(/\* \{ dg-error .*) } \*/$,$1 "" { target *-*-* } $. } */,' \ < gcc/testsuite/gcc.dg/permerror-default.c gcc/testsuite/ * gcc.dg/permerror-default.c: New test. * gcc.dg/permerror-fpermissive.c: Likewise. * gcc.dg/permerror-fpermissive-nowarning.c: Likewise. * gcc.dg/permerror-gnu89-nopermissive.c: Likewise. No permerrors yet, so this matches gcc.dg/permerror-gnu89.c for now. * gcc.dg/permerror-gnu89-pedantic.c: New test. * gcc.dg/permerror-gnu89.c: Likewise. * gcc.dg/permerror-noerror.c: Likewise. * gcc.dg/permerror-nowarning.c: Likewise. * gcc.dg/permerror-pedantic.c: Likewise. * gcc.dg/permerror-system.c: Likewise. --- gcc/testsuite/gcc.dg/permerror-default.c | 85 +++++++++++++++++++ .../gcc.dg/permerror-fpermissive-nowarning.c | 11 +++ gcc/testsuite/gcc.dg/permerror-fpermissive.c | 85 +++++++++++++++++++ .../gcc.dg/permerror-gnu89-nopermissive.c | 85 +++++++++++++++++++ .../gcc.dg/permerror-gnu89-pedantic.c | 85 +++++++++++++++++++ gcc/testsuite/gcc.dg/permerror-gnu89.c | 85 +++++++++++++++++++ gcc/testsuite/gcc.dg/permerror-noerror.c | 85 +++++++++++++++++++ gcc/testsuite/gcc.dg/permerror-nowarning.c | 10 +++ gcc/testsuite/gcc.dg/permerror-pedantic.c | 85 +++++++++++++++++++ gcc/testsuite/gcc.dg/permerror-system.c | 9 ++ 10 files changed, 625 insertions(+) create mode 100644 gcc/testsuite/gcc.dg/permerror-default.c create mode 100644 gcc/testsuite/gcc.dg/permerror-fpermissive-nowarning.c create mode 100644 gcc/testsuite/gcc.dg/permerror-fpermissive.c create mode 100644 gcc/testsuite/gcc.dg/permerror-gnu89-nopermissive.c create mode 100644 gcc/testsuite/gcc.dg/permerror-gnu89-pedantic.c create mode 100644 gcc/testsuite/gcc.dg/permerror-gnu89.c create mode 100644 gcc/testsuite/gcc.dg/permerror-noerror.c create mode 100644 gcc/testsuite/gcc.dg/permerror-nowarning.c create mode 100644 gcc/testsuite/gcc.dg/permerror-pedantic.c create mode 100644 gcc/testsuite/gcc.dg/permerror-system.c diff --git a/gcc/testsuite/gcc.dg/permerror-default.c b/gcc/testsuite/gcc.dg/permerror-default.c new file mode 100644 index 00000000000..ea0be1dc89f --- /dev/null +++ b/gcc/testsuite/gcc.dg/permerror-default.c @@ -0,0 +1,85 @@ +/* { dg-options "" } */ + +/* Overview test for C permerrors. This test should be kept in sync with the + other permerror-* tests. If new permerrors are added, test cases should be + added to this and the other files. */ + +void +implicit_function_declaration (void) +{ + f1 (); /* { dg-warning "'f1' \\\[-Wimplicit-function-declaration\\\]" } */ +} + +extern implicit_int_1; /* { dg-warning "'implicit_int_1' \\\[-Wimplicit-int\\\]" } */ +typedef implicit_int_2; /* { dg-warning "'implicit_int_2' \\\[-Wimplicit-int\\\]" } */ +extern implicit_int_3 (void); /* { dg-warning "'implicit_int_3' \\\[-Wimplicit-int\\]" } */ +implicit_int_4 (i) /* { dg-warning "return type defaults to 'int' \\\[-Wimplicit-int\\\]" } */ +/* { dg-warning "type of 'i' defaults to 'int' \\\[-Wimplicit-int\\\]" "" { target *-*-*} .-1 } */ +{ + (const) 0; /* { dg-warning "type defaults to 'int' in type name \\\[-Wimplicit-int\\\]" } */ +} + +extern int missing_parameter_type (i); /* { dg-warning "parameter names \\\(without types\\\) in function declaration\n" } */ + + +int * +int_conversion_1 (int flag) +{ + void f2 (int *); + flag ? "1" : 1; /* { dg-warning "pointer/integer type mismatch in conditional expression \\\[-Wint-conversion\\\]" } */ + flag ? 1 : "1"; /* { dg-warning "pointer/integer type mismatch in conditional expression \\\[-Wint-conversion\\\]" } */ + f2 (flag); /* { dg-warning "passing argument 1 of 'f2' makes pointer from integer without a cast \\\[-Wint-conversion\\\]" } */ + { + int i1 = &flag; /* { dg-warning "initialization of 'int' from 'int \\\*' makes integer from pointer without a cast \\\[-Wint-conversion\\\]" } */ + i1 = &flag; /* { dg-warning "assignment to 'int' from 'int \\\*' makes integer from pointer without a cast \\\[-Wint-conversion\\\]" } */ + } + return flag; /* { dg-warning "returning 'int' from a function with return type 'int \\\*' makes pointer from integer without a cast \\\[-Wint-conversion\\\]" } */ +} + +int +int_conversion_2 (int flag) +{ + void f3 (int); + f3 (&flag); /* { dg-warning "passing argument 1 of 'f3' makes integer from pointer without a cast \\\[-Wint-conversion\\\]" } */ + { + int *i1 = flag; /* { dg-warning "initialization of 'int \\\*' from 'int' makes pointer from integer without a cast \\\[-Wint-conversion\\\]" } */ + i1 = flag; /* { dg-warning "assignment to 'int \\\*' from 'int' makes pointer from integer without a cast \\\[-Wint-conversion\\\]" } */ + } + return &flag; /* { dg-warning "returning 'int \\\*' from a function with return type 'int' makes integer from pointer without a cast \\\[-Wint-conversion\\\]" } */ +} + +int * +incompatible_pointer_types (int flag) +{ + void f4 (int *); + flag ? __builtin_abs : __builtin_labs; /* { dg-warning "pointer type mismatch in conditional expression \\\[-Wincompatible-pointer-types\\\]" } */ + { + int *p1 = __builtin_abs; /* { dg-warning "initialization of 'int \\\*' from pointer to '__builtin_abs' with incompatible type 'int \\\(\\\*\\\)\\\(int\\\)' \\\[-Wincompatible-pointer-types\\\]" } */ + p1 = __builtin_abs; /* { dg-warning "assignment to 'int \\\*' from pointer to '__builtin_abs' with incompatible type 'int \\\(\\\*\\\)\\\(int\\\)' \\\[-Wincompatible-pointer-types\\\]" } */ + } + { + int *p2 = incompatible_pointer_types; /* { dg-warning "initialization of 'int \\\*' from incompatible pointer type 'int \\\* \\\(\\\*\\\)\\\(int\\\)' \\\[-Wincompatible-pointer-types\\\]" } */ + p2 = incompatible_pointer_types; /* { dg-warning "assignment to 'int \\\*' from incompatible pointer type 'int \\\* \\\(\\\*\\\)\\\(int\\\)' \\\[-Wincompatible-pointer-types\\\]" } */ + { + int *p3 = &p2; /* { dg-warning "initialization of 'int \\\*' from incompatible pointer type 'int \\\*\\\*' \\\[-Wincompatible-pointer-types\\\]" } */ + p3 = &p2; /* { dg-warning "assignment to 'int \\\*' from incompatible pointer type 'int \\\*\\\*' \\\[-Wincompatible-pointer-types\\\]" } */ + } + f4 (&p2); /* { dg-warning "passing argument 1 of 'f4' from incompatible pointer type \\\[-Wincompatible-pointer-types\\\]" } */ + } + if (flag) + return __builtin_abs; /* { dg-warning "returning pointer to '__builtin_abs' of type 'int \\\(\\\*\\\)\\\(int\\\)' from a function with incompatible type 'int \\\*' \\\[-Wincompatible-pointer-types\\\]" } */ + else + return incompatible_pointer_types; /* { dg-warning "returning 'int \\\* \\\(\\\*\\\)\\\(int\\\)' from a function with incompatible return type 'int \\\*' \\\[-Wincompatible-pointer-types\\\]" } */ +} + +void +return_mismatch_1 (void) +{ + return 0; /* { dg-warning "'return' with a value, in function returning void \\\[-Wreturn-mismatch\\\]" } */ +} + +int +return_mismatch_2 (void) +{ + return; /* { dg-warning "return' with no value, in function returning non-void \\\[-Wreturn-mismatch\\\]" } */ +} diff --git a/gcc/testsuite/gcc.dg/permerror-fpermissive-nowarning.c b/gcc/testsuite/gcc.dg/permerror-fpermissive-nowarning.c new file mode 100644 index 00000000000..f15b21ef43d --- /dev/null +++ b/gcc/testsuite/gcc.dg/permerror-fpermissive-nowarning.c @@ -0,0 +1,11 @@ +/* { dg-options "-fpermissive -Wno-implicit-function-declaration -Wno-implicit-int -Wno-int-conversion -Wno-incompatible-pointer-types -Wno-return-mismatch" } */ + +/* This test checks that permerrors can be disabled using -Wno-* options even + if -fpermissive is used. */ + +#include "permerror-default.c" + +/* Ideally, we do not want to see any warnings here, but this warning is not + yet controlled by its own option. */ + +/* { dg-warning "parameter names \\\(without types\\\) in function declaration\n" "" { target *-*-* } 22 } */ diff --git a/gcc/testsuite/gcc.dg/permerror-fpermissive.c b/gcc/testsuite/gcc.dg/permerror-fpermissive.c new file mode 100644 index 00000000000..139f35ad1c0 --- /dev/null +++ b/gcc/testsuite/gcc.dg/permerror-fpermissive.c @@ -0,0 +1,85 @@ +/* { dg-options "-fpermissive" } */ + +/* Overview test for C permerrors. This test should be kept in sync with the + other permerror-* tests. If new permerrors are added, test cases should be + added to this and the other files. */ + +void +implicit_function_declaration (void) +{ + f1 (); /* { dg-warning "'f1' \\\[-Wimplicit-function-declaration\\\]" } */ +} + +extern implicit_int_1; /* { dg-warning "'implicit_int_1' \\\[-Wimplicit-int\\\]" } */ +typedef implicit_int_2; /* { dg-warning "'implicit_int_2' \\\[-Wimplicit-int\\\]" } */ +extern implicit_int_3 (void); /* { dg-warning "'implicit_int_3' \\\[-Wimplicit-int\\]" } */ +implicit_int_4 (i) /* { dg-warning "return type defaults to 'int' \\\[-Wimplicit-int\\\]" } */ +/* { dg-warning "type of 'i' defaults to 'int' \\\[-Wimplicit-int\\\]" "" { target *-*-*} .-1 } */ +{ + (const) 0; /* { dg-warning "type defaults to 'int' in type name \\\[-Wimplicit-int\\\]" } */ +} + +extern int missing_parameter_type (i); /* { dg-warning "parameter names \\\(without types\\\) in function declaration\n" } */ + + +int * +int_conversion_1 (int flag) +{ + void f2 (int *); + flag ? "1" : 1; /* { dg-warning "pointer/integer type mismatch in conditional expression \\\[-Wint-conversion\\\]" } */ + flag ? 1 : "1"; /* { dg-warning "pointer/integer type mismatch in conditional expression \\\[-Wint-conversion\\\]" } */ + f2 (flag); /* { dg-warning "passing argument 1 of 'f2' makes pointer from integer without a cast \\\[-Wint-conversion\\\]" } */ + { + int i1 = &flag; /* { dg-warning "initialization of 'int' from 'int \\\*' makes integer from pointer without a cast \\\[-Wint-conversion\\\]" } */ + i1 = &flag; /* { dg-warning "assignment to 'int' from 'int \\\*' makes integer from pointer without a cast \\\[-Wint-conversion\\\]" } */ + } + return flag; /* { dg-warning "returning 'int' from a function with return type 'int \\\*' makes pointer from integer without a cast \\\[-Wint-conversion\\\]" } */ +} + +int +int_conversion_2 (int flag) +{ + void f3 (int); + f3 (&flag); /* { dg-warning "passing argument 1 of 'f3' makes integer from pointer without a cast \\\[-Wint-conversion\\\]" } */ + { + int *i1 = flag; /* { dg-warning "initialization of 'int \\\*' from 'int' makes pointer from integer without a cast \\\[-Wint-conversion\\\]" } */ + i1 = flag; /* { dg-warning "assignment to 'int \\\*' from 'int' makes pointer from integer without a cast \\\[-Wint-conversion\\\]" } */ + } + return &flag; /* { dg-warning "returning 'int \\\*' from a function with return type 'int' makes integer from pointer without a cast \\\[-Wint-conversion\\\]" } */ +} + +int * +incompatible_pointer_types (int flag) +{ + void f4 (int *); + flag ? __builtin_abs : __builtin_labs; /* { dg-warning "pointer type mismatch in conditional expression \\\[-Wincompatible-pointer-types\\\]" } */ + { + int *p1 = __builtin_abs; /* { dg-warning "initialization of 'int \\\*' from pointer to '__builtin_abs' with incompatible type 'int \\\(\\\*\\\)\\\(int\\\)' \\\[-Wincompatible-pointer-types\\\]" } */ + p1 = __builtin_abs; /* { dg-warning "assignment to 'int \\\*' from pointer to '__builtin_abs' with incompatible type 'int \\\(\\\*\\\)\\\(int\\\)' \\\[-Wincompatible-pointer-types\\\]" } */ + } + { + int *p2 = incompatible_pointer_types; /* { dg-warning "initialization of 'int \\\*' from incompatible pointer type 'int \\\* \\\(\\\*\\\)\\\(int\\\)' \\\[-Wincompatible-pointer-types\\\]" } */ + p2 = incompatible_pointer_types; /* { dg-warning "assignment to 'int \\\*' from incompatible pointer type 'int \\\* \\\(\\\*\\\)\\\(int\\\)' \\\[-Wincompatible-pointer-types\\\]" } */ + { + int *p3 = &p2; /* { dg-warning "initialization of 'int \\\*' from incompatible pointer type 'int \\\*\\\*' \\\[-Wincompatible-pointer-types\\\]" } */ + p3 = &p2; /* { dg-warning "assignment to 'int \\\*' from incompatible pointer type 'int \\\*\\\*' \\\[-Wincompatible-pointer-types\\\]" } */ + } + f4 (&p2); /* { dg-warning "passing argument 1 of 'f4' from incompatible pointer type \\\[-Wincompatible-pointer-types\\\]" } */ + } + if (flag) + return __builtin_abs; /* { dg-warning "returning pointer to '__builtin_abs' of type 'int \\\(\\\*\\\)\\\(int\\\)' from a function with incompatible type 'int \\\*' \\\[-Wincompatible-pointer-types\\\]" } */ + else + return incompatible_pointer_types; /* { dg-warning "returning 'int \\\* \\\(\\\*\\\)\\\(int\\\)' from a function with incompatible return type 'int \\\*' \\\[-Wincompatible-pointer-types\\\]" } */ +} + +void +return_mismatch_1 (void) +{ + return 0; /* { dg-warning "'return' with a value, in function returning void \\\[-Wreturn-mismatch\\\]" } */ +} + +int +return_mismatch_2 (void) +{ + return; /* { dg-warning "return' with no value, in function returning non-void \\\[-Wreturn-mismatch\\\]" } */ +} diff --git a/gcc/testsuite/gcc.dg/permerror-gnu89-nopermissive.c b/gcc/testsuite/gcc.dg/permerror-gnu89-nopermissive.c new file mode 100644 index 00000000000..6d42bc61d5c --- /dev/null +++ b/gcc/testsuite/gcc.dg/permerror-gnu89-nopermissive.c @@ -0,0 +1,85 @@ +/* { dg-options "-std=gnu89 -fno-permissive" } */ + +/* Test for C89 dialect mode, with new permerrors enabled. In most + cases where the compiler warnings in C89 mode, it should issue a + permerror with -fno-permissive. */ + +void +implicit_function_declaration (void) +{ + f1 (); /* { dg-bogus "-Wimplicit-function-declaration" } */ +} + +extern implicit_int_1; /* { dg-bogus "-Wimplicit-int" } */ +typedef implicit_int_2; /* { dg-bogus "-Wimplicit-int" } */ +extern implicit_int_3 (void); /* { dg-bogus "-Wimplicit-int" } */ +implicit_int_4 (i) /* { dg-bogus "-Wimplicit-int" } */ +/* Directive here in the other files. */ +{ + (const) 0; /* { dg-bogus "-Wimplicit-int" } */ +} + +extern int missing_parameter_type (i); /* { dg-warning "parameter names \\\(without types\\\) in function declaration\n" } */ + + +int * +int_conversion_1 (int flag) +{ + void f2 (int *); + flag ? "1" : 1; /* { dg-warning "pointer/integer type mismatch in conditional expression \\\[-Wint-conversion\\\]" } */ + flag ? 1 : "1"; /* { dg-warning "pointer/integer type mismatch in conditional expression \\\[-Wint-conversion\\\]" } */ + f2 (flag); /* { dg-warning "passing argument 1 of 'f2' makes pointer from integer without a cast \\\[-Wint-conversion\\\]" } */ + { + int i1 = &flag; /* { dg-warning "initialization of 'int' from 'int \\\*' makes integer from pointer without a cast \\\[-Wint-conversion\\\]" } */ + i1 = &flag; /* { dg-warning "assignment to 'int' from 'int \\\*' makes integer from pointer without a cast \\\[-Wint-conversion\\\]" } */ + } + return flag; /* { dg-warning "returning 'int' from a function with return type 'int \\\*' makes pointer from integer without a cast \\\[-Wint-conversion\\\]" } */ +} + +int +int_conversion_2 (int flag) +{ + void f3 (int); + f3 (&flag); /* { dg-warning "passing argument 1 of 'f3' makes integer from pointer without a cast \\\[-Wint-conversion\\\]" } */ + { + int *i1 = flag; /* { dg-warning "initialization of 'int \\\*' from 'int' makes pointer from integer without a cast \\\[-Wint-conversion\\\]" } */ + i1 = flag; /* { dg-warning "assignment to 'int \\\*' from 'int' makes pointer from integer without a cast \\\[-Wint-conversion\\\]" } */ + } + return &flag; /* { dg-warning "returning 'int \\\*' from a function with return type 'int' makes integer from pointer without a cast \\\[-Wint-conversion\\\]" } */ +} + +int * +incompatible_pointer_types (int flag) +{ + void f4 (int *); + flag ? __builtin_abs : __builtin_labs; /* { dg-warning "pointer type mismatch in conditional expression \\\[-Wincompatible-pointer-types\\\]" } */ + { + int *p1 = __builtin_abs; /* { dg-warning "initialization of 'int \\\*' from pointer to '__builtin_abs' with incompatible type 'int \\\(\\\*\\\)\\\(int\\\)' \\\[-Wincompatible-pointer-types\\\]" } */ + p1 = __builtin_abs; /* { dg-warning "assignment to 'int \\\*' from pointer to '__builtin_abs' with incompatible type 'int \\\(\\\*\\\)\\\(int\\\)' \\\[-Wincompatible-pointer-types\\\]" } */ + } + { + int *p2 = incompatible_pointer_types; /* { dg-warning "initialization of 'int \\\*' from incompatible pointer type 'int \\\* \\\(\\\*\\\)\\\(int\\\)' \\\[-Wincompatible-pointer-types\\\]" } */ + p2 = incompatible_pointer_types; /* { dg-warning "assignment to 'int \\\*' from incompatible pointer type 'int \\\* \\\(\\\*\\\)\\\(int\\\)' \\\[-Wincompatible-pointer-types\\\]" } */ + { + int *p3 = &p2; /* { dg-warning "initialization of 'int \\\*' from incompatible pointer type 'int \\\*\\\*' \\\[-Wincompatible-pointer-types\\\]" } */ + p3 = &p2; /* { dg-warning "assignment to 'int \\\*' from incompatible pointer type 'int \\\*\\\*' \\\[-Wincompatible-pointer-types\\\]" } */ + } + f4 (&p2); /* { dg-warning "passing argument 1 of 'f4' from incompatible pointer type \\\[-Wincompatible-pointer-types\\\]" } */ + } + if (flag) + return __builtin_abs; /* { dg-warning "returning pointer to '__builtin_abs' of type 'int \\\(\\\*\\\)\\\(int\\\)' from a function with incompatible type 'int \\\*' \\\[-Wincompatible-pointer-types\\\]" } */ + else + return incompatible_pointer_types; /* { dg-warning "returning 'int \\\* \\\(\\\*\\\)\\\(int\\\)' from a function with incompatible return type 'int \\\*' \\\[-Wincompatible-pointer-types\\\]" } */ +} + +void +return_mismatch_1 (void) +{ + return 0; /* { dg-warning "'return' with a value, in function returning void \\\[-Wreturn-mismatch\\\]" } */ +} + +int +return_mismatch_2 (void) +{ + return; /* { dg-bogus "-Wreturn-mismatch" } */ +} diff --git a/gcc/testsuite/gcc.dg/permerror-gnu89-pedantic.c b/gcc/testsuite/gcc.dg/permerror-gnu89-pedantic.c new file mode 100644 index 00000000000..465a16f5f9a --- /dev/null +++ b/gcc/testsuite/gcc.dg/permerror-gnu89-pedantic.c @@ -0,0 +1,85 @@ +/* { dg-options "-std=gnu89 -pedantic-errors" } */ + +/* Overview test for C permerrors. This test should be kept in sync with the + other permerror-* tests. If new permerrors are added, test cases should be + added to this and the other files. */ + +void +implicit_function_declaration (void) +{ + f1 (); /* { dg-bogus "-Wimplicit-function-declaration" } */ +} + +extern implicit_int_1; /* { dg-bogus "-Wimplicit-int" } */ +typedef implicit_int_2; /* { dg-bogus "-Wimplicit-int" } */ +extern implicit_int_3 (void); /* { dg-bogus "-Wimplicit-int" } */ +implicit_int_4 (i) /* { dg-bogus "-Wimplicit-int" } */ +/* Directive here in the other files. */ +{ + (const) 0; /* { dg-bogus "-Wimplicit-int" } */ +} + +extern int missing_parameter_type (i); /* { dg-error "parameter names \\\(without types\\\) in function declaration\n" } */ + + +int * +int_conversion_1 (int flag) +{ + void f2 (int *); + flag ? "1" : 1; /* { dg-error "pointer/integer type mismatch in conditional expression \\\[-Wint-conversion\\\]" } */ + flag ? 1 : "1"; /* { dg-error "pointer/integer type mismatch in conditional expression \\\[-Wint-conversion\\\]" } */ + f2 (flag); /* { dg-error "passing argument 1 of 'f2' makes pointer from integer without a cast \\\[-Wint-conversion\\\]" } */ + { + int i1 = &flag; /* { dg-error "initialization of 'int' from 'int \\\*' makes integer from pointer without a cast \\\[-Wint-conversion\\\]" } */ + i1 = &flag; /* { dg-error "assignment to 'int' from 'int \\\*' makes integer from pointer without a cast \\\[-Wint-conversion\\\]" } */ + } + return flag; /* { dg-error "returning 'int' from a function with return type 'int \\\*' makes pointer from integer without a cast \\\[-Wint-conversion\\\]" } */ +} + +int +int_conversion_2 (int flag) +{ + void f3 (int); + f3 (&flag); /* { dg-error "passing argument 1 of 'f3' makes integer from pointer without a cast \\\[-Wint-conversion\\\]" } */ + { + int *i1 = flag; /* { dg-error "initialization of 'int \\\*' from 'int' makes pointer from integer without a cast \\\[-Wint-conversion\\\]" } */ + i1 = flag; /* { dg-error "assignment to 'int \\\*' from 'int' makes pointer from integer without a cast \\\[-Wint-conversion\\\]" } */ + } + return &flag; /* { dg-error "returning 'int \\\*' from a function with return type 'int' makes integer from pointer without a cast \\\[-Wint-conversion\\\]" } */ +} + +int * +incompatible_pointer_types (int flag) +{ + void f4 (int *); + flag ? __builtin_abs : __builtin_labs; /* { dg-warning "pointer type mismatch in conditional expression \\\[-Wincompatible-pointer-types\\\]" } */ + { + int *p1 = __builtin_abs; /* { dg-error "initialization of 'int \\\*' from pointer to '__builtin_abs' with incompatible type 'int \\\(\\\*\\\)\\\(int\\\)' \\\[-Wincompatible-pointer-types\\\]" } */ + p1 = __builtin_abs; /* { dg-error "assignment to 'int \\\*' from pointer to '__builtin_abs' with incompatible type 'int \\\(\\\*\\\)\\\(int\\\)' \\\[-Wincompatible-pointer-types\\\]" } */ + } + { + int *p2 = incompatible_pointer_types; /* { dg-error "initialization of 'int \\\*' from incompatible pointer type 'int \\\* \\\(\\\*\\\)\\\(int\\\)' \\\[-Wincompatible-pointer-types\\\]" } */ + p2 = incompatible_pointer_types; /* { dg-error "assignment to 'int \\\*' from incompatible pointer type 'int \\\* \\\(\\\*\\\)\\\(int\\\)' \\\[-Wincompatible-pointer-types\\\]" } */ + { + int *p3 = &p2; /* { dg-error "initialization of 'int \\\*' from incompatible pointer type 'int \\\*\\\*' \\\[-Wincompatible-pointer-types\\\]" } */ + p3 = &p2; /* { dg-error "assignment to 'int \\\*' from incompatible pointer type 'int \\\*\\\*' \\\[-Wincompatible-pointer-types\\\]" } */ + } + f4 (&p2); /* { dg-error "passing argument 1 of 'f4' from incompatible pointer type \\\[-Wincompatible-pointer-types\\\]" } */ + } + if (flag) + return __builtin_abs; /* { dg-error "returning pointer to '__builtin_abs' of type 'int \\\(\\\*\\\)\\\(int\\\)' from a function with incompatible type 'int \\\*' \\\[-Wincompatible-pointer-types\\\]" } */ + else + return incompatible_pointer_types; /* { dg-error "returning 'int \\\* \\\(\\\*\\\)\\\(int\\\)' from a function with incompatible return type 'int \\\*' \\\[-Wincompatible-pointer-types\\\]" } */ +} + +void +return_mismatch_1 (void) +{ + return 0; /* { dg-error "'return' with a value, in function returning void \\\[-Wreturn-mismatch\\\]" } */ +} + +int +return_mismatch_2 (void) +{ + return; /* { dg-bogus "-Wreturn-mismatch" } */ +} diff --git a/gcc/testsuite/gcc.dg/permerror-gnu89.c b/gcc/testsuite/gcc.dg/permerror-gnu89.c new file mode 100644 index 00000000000..66f7789269f --- /dev/null +++ b/gcc/testsuite/gcc.dg/permerror-gnu89.c @@ -0,0 +1,85 @@ +/* { dg-options "-std=gnu89" } */ + +/* Overview test for C permerrors. This test should be kept in sync with the + other permerror-* tests. If new permerrors are added, test cases should be + added to this and the other files. */ + +void +implicit_function_declaration (void) +{ + f1 (); /* { dg-bogus "-Wimplicit-function-declaration" } */ +} + +extern implicit_int_1; /* { dg-bogus "-Wimplicit-int" } */ +typedef implicit_int_2; /* { dg-bogus "-Wimplicit-int" } */ +extern implicit_int_3 (void); /* { dg-bogus "-Wimplicit-int" } */ +implicit_int_4 (i) /* { dg-bogus "-Wimplicit-int" } */ +/* Directive here in the other files. */ +{ + (const) 0; /* { dg-bogus "-Wimplicit-int" } */ +} + +extern int missing_parameter_type (i); /* { dg-warning "parameter names \\\(without types\\\) in function declaration\n" } */ + + +int * +int_conversion_1 (int flag) +{ + void f2 (int *); + flag ? "1" : 1; /* { dg-warning "pointer/integer type mismatch in conditional expression \\\[-Wint-conversion\\\]" } */ + flag ? 1 : "1"; /* { dg-warning "pointer/integer type mismatch in conditional expression \\\[-Wint-conversion\\\]" } */ + f2 (flag); /* { dg-warning "passing argument 1 of 'f2' makes pointer from integer without a cast \\\[-Wint-conversion\\\]" } */ + { + int i1 = &flag; /* { dg-warning "initialization of 'int' from 'int \\\*' makes integer from pointer without a cast \\\[-Wint-conversion\\\]" } */ + i1 = &flag; /* { dg-warning "assignment to 'int' from 'int \\\*' makes integer from pointer without a cast \\\[-Wint-conversion\\\]" } */ + } + return flag; /* { dg-warning "returning 'int' from a function with return type 'int \\\*' makes pointer from integer without a cast \\\[-Wint-conversion\\\]" } */ +} + +int +int_conversion_2 (int flag) +{ + void f3 (int); + f3 (&flag); /* { dg-warning "passing argument 1 of 'f3' makes integer from pointer without a cast \\\[-Wint-conversion\\\]" } */ + { + int *i1 = flag; /* { dg-warning "initialization of 'int \\\*' from 'int' makes pointer from integer without a cast \\\[-Wint-conversion\\\]" } */ + i1 = flag; /* { dg-warning "assignment to 'int \\\*' from 'int' makes pointer from integer without a cast \\\[-Wint-conversion\\\]" } */ + } + return &flag; /* { dg-warning "returning 'int \\\*' from a function with return type 'int' makes integer from pointer without a cast \\\[-Wint-conversion\\\]" } */ +} + +int * +incompatible_pointer_types (int flag) +{ + void f4 (int *); + flag ? __builtin_abs : __builtin_labs; /* { dg-warning "pointer type mismatch in conditional expression \\\[-Wincompatible-pointer-types\\\]" } */ + { + int *p1 = __builtin_abs; /* { dg-warning "initialization of 'int \\\*' from pointer to '__builtin_abs' with incompatible type 'int \\\(\\\*\\\)\\\(int\\\)' \\\[-Wincompatible-pointer-types\\\]" } */ + p1 = __builtin_abs; /* { dg-warning "assignment to 'int \\\*' from pointer to '__builtin_abs' with incompatible type 'int \\\(\\\*\\\)\\\(int\\\)' \\\[-Wincompatible-pointer-types\\\]" } */ + } + { + int *p2 = incompatible_pointer_types; /* { dg-warning "initialization of 'int \\\*' from incompatible pointer type 'int \\\* \\\(\\\*\\\)\\\(int\\\)' \\\[-Wincompatible-pointer-types\\\]" } */ + p2 = incompatible_pointer_types; /* { dg-warning "assignment to 'int \\\*' from incompatible pointer type 'int \\\* \\\(\\\*\\\)\\\(int\\\)' \\\[-Wincompatible-pointer-types\\\]" } */ + { + int *p3 = &p2; /* { dg-warning "initialization of 'int \\\*' from incompatible pointer type 'int \\\*\\\*' \\\[-Wincompatible-pointer-types\\\]" } */ + p3 = &p2; /* { dg-warning "assignment to 'int \\\*' from incompatible pointer type 'int \\\*\\\*' \\\[-Wincompatible-pointer-types\\\]" } */ + } + f4 (&p2); /* { dg-warning "passing argument 1 of 'f4' from incompatible pointer type \\\[-Wincompatible-pointer-types\\\]" } */ + } + if (flag) + return __builtin_abs; /* { dg-warning "returning pointer to '__builtin_abs' of type 'int \\\(\\\*\\\)\\\(int\\\)' from a function with incompatible type 'int \\\*' \\\[-Wincompatible-pointer-types\\\]" } */ + else + return incompatible_pointer_types; /* { dg-warning "returning 'int \\\* \\\(\\\*\\\)\\\(int\\\)' from a function with incompatible return type 'int \\\*' \\\[-Wincompatible-pointer-types\\\]" } */ +} + +void +return_mismatch_1 (void) +{ + return 0; /* { dg-warning "'return' with a value, in function returning void \\\[-Wreturn-mismatch\\\]" } */ +} + +int +return_mismatch_2 (void) +{ + return; /* { dg-bogus "-Wreturn-mismatch" } */ +} diff --git a/gcc/testsuite/gcc.dg/permerror-noerror.c b/gcc/testsuite/gcc.dg/permerror-noerror.c new file mode 100644 index 00000000000..cd1c2013cb5 --- /dev/null +++ b/gcc/testsuite/gcc.dg/permerror-noerror.c @@ -0,0 +1,85 @@ +/* { dg-options "-Wno-error=implicit-function-declaration -Wno-error=implicit-int -Wno-error=int-conversion -Wno-error=incompatible-pointer-types -Wno-error=return-mismatch" } */ + +/* This test should emulate the effect of -fpermissive by adding all the + -Wno-error= options that are implied by -fpermissive. It needs to be + kept in sync with the other permerror-* tests. */ + +void +implicit_function_declaration (void) +{ + f1 (); /* { dg-warning "'f1' \\\[-Wimplicit-function-declaration\\\]" } */ +} + +extern implicit_int_1; /* { dg-warning "'implicit_int_1' \\\[-Wimplicit-int\\\]" } */ +typedef implicit_int_2; /* { dg-warning "'implicit_int_2' \\\[-Wimplicit-int\\\]" } */ +extern implicit_int_3 (void); /* { dg-warning "'implicit_int_3' \\\[-Wimplicit-int\\]" } */ +implicit_int_4 (i) /* { dg-warning "return type defaults to 'int' \\\[-Wimplicit-int\\\]" } */ +/* { dg-warning "type of 'i' defaults to 'int' \\\[-Wimplicit-int\\\]" "" { target *-*-*} .-1 } */ +{ + (const) 0; /* { dg-warning "type defaults to 'int' in type name \\\[-Wimplicit-int\\\]" } */ +} + +extern int missing_parameter_type (i); /* { dg-warning "parameter names \\\(without types\\\) in function declaration\n" } */ + + +int * +int_conversion_1 (int flag) +{ + void f2 (int *); + flag ? "1" : 1; /* { dg-warning "pointer/integer type mismatch in conditional expression \\\[-Wint-conversion\\\]" } */ + flag ? 1 : "1"; /* { dg-warning "pointer/integer type mismatch in conditional expression \\\[-Wint-conversion\\\]" } */ + f2 (flag); /* { dg-warning "passing argument 1 of 'f2' makes pointer from integer without a cast \\\[-Wint-conversion\\\]" } */ + { + int i1 = &flag; /* { dg-warning "initialization of 'int' from 'int \\\*' makes integer from pointer without a cast \\\[-Wint-conversion\\\]" } */ + i1 = &flag; /* { dg-warning "assignment to 'int' from 'int \\\*' makes integer from pointer without a cast \\\[-Wint-conversion\\\]" } */ + } + return flag; /* { dg-warning "returning 'int' from a function with return type 'int \\\*' makes pointer from integer without a cast \\\[-Wint-conversion\\\]" } */ +} + +int +int_conversion_2 (int flag) +{ + void f3 (int); + f3 (&flag); /* { dg-warning "passing argument 1 of 'f3' makes integer from pointer without a cast \\\[-Wint-conversion\\\]" } */ + { + int *i1 = flag; /* { dg-warning "initialization of 'int \\\*' from 'int' makes pointer from integer without a cast \\\[-Wint-conversion\\\]" } */ + i1 = flag; /* { dg-warning "assignment to 'int \\\*' from 'int' makes pointer from integer without a cast \\\[-Wint-conversion\\\]" } */ + } + return &flag; /* { dg-warning "returning 'int \\\*' from a function with return type 'int' makes integer from pointer without a cast \\\[-Wint-conversion\\\]" } */ +} + +int * +incompatible_pointer_types (int flag) +{ + void f4 (int *); + flag ? __builtin_abs : __builtin_labs; /* { dg-warning "pointer type mismatch in conditional expression \\\[-Wincompatible-pointer-types\\\]" } */ + { + int *p1 = __builtin_abs; /* { dg-warning "initialization of 'int \\\*' from pointer to '__builtin_abs' with incompatible type 'int \\\(\\\*\\\)\\\(int\\\)' \\\[-Wincompatible-pointer-types\\\]" } */ + p1 = __builtin_abs; /* { dg-warning "assignment to 'int \\\*' from pointer to '__builtin_abs' with incompatible type 'int \\\(\\\*\\\)\\\(int\\\)' \\\[-Wincompatible-pointer-types\\\]" } */ + } + { + int *p2 = incompatible_pointer_types; /* { dg-warning "initialization of 'int \\\*' from incompatible pointer type 'int \\\* \\\(\\\*\\\)\\\(int\\\)' \\\[-Wincompatible-pointer-types\\\]" } */ + p2 = incompatible_pointer_types; /* { dg-warning "assignment to 'int \\\*' from incompatible pointer type 'int \\\* \\\(\\\*\\\)\\\(int\\\)' \\\[-Wincompatible-pointer-types\\\]" } */ + { + int *p3 = &p2; /* { dg-warning "initialization of 'int \\\*' from incompatible pointer type 'int \\\*\\\*' \\\[-Wincompatible-pointer-types\\\]" } */ + p3 = &p2; /* { dg-warning "assignment to 'int \\\*' from incompatible pointer type 'int \\\*\\\*' \\\[-Wincompatible-pointer-types\\\]" } */ + } + f4 (&p2); /* { dg-warning "passing argument 1 of 'f4' from incompatible pointer type \\\[-Wincompatible-pointer-types\\\]" } */ + } + if (flag) + return __builtin_abs; /* { dg-warning "returning pointer to '__builtin_abs' of type 'int \\\(\\\*\\\)\\\(int\\\)' from a function with incompatible type 'int \\\*' \\\[-Wincompatible-pointer-types\\\]" } */ + else + return incompatible_pointer_types; /* { dg-warning "returning 'int \\\* \\\(\\\*\\\)\\\(int\\\)' from a function with incompatible return type 'int \\\*' \\\[-Wincompatible-pointer-types\\\]" } */ +} + +void +return_mismatch_1 (void) +{ + return 0; /* { dg-warning "'return' with a value, in function returning void \\\[-Wreturn-mismatch\\\]" } */ +} + +int +return_mismatch_2 (void) +{ + return; /* { dg-warning "return' with no value, in function returning non-void \\\[-Wreturn-mismatch\\\]" } */ +} diff --git a/gcc/testsuite/gcc.dg/permerror-nowarning.c b/gcc/testsuite/gcc.dg/permerror-nowarning.c new file mode 100644 index 00000000000..da6bd08245d --- /dev/null +++ b/gcc/testsuite/gcc.dg/permerror-nowarning.c @@ -0,0 +1,10 @@ +/* { dg-options "-Wno-implicit-function-declaration -Wno-implicit-int -Wno-int-conversion -Wno-incompatible-pointer-types -Wno-return-mismatch" } */ + +/* This test checks that permerrors can be disabled using -Wno-* options. */ + +#include "permerror-default.c" + +/* Ideally, we do not want to see any warnings here, but this warning is not + yet controlled by its own option. */ + +/* { dg-warning "parameter names \\\(without types\\\) in function declaration\n" "" { target *-*-* } 22 } */ diff --git a/gcc/testsuite/gcc.dg/permerror-pedantic.c b/gcc/testsuite/gcc.dg/permerror-pedantic.c new file mode 100644 index 00000000000..852e7daa38d --- /dev/null +++ b/gcc/testsuite/gcc.dg/permerror-pedantic.c @@ -0,0 +1,85 @@ +/* { dg-options "-pedantic-errors" } */ + +/* Overview test for C permerrors. This test should be kept in sync with the + other permerror-* tests. If new permerrors are added, test cases should be + added to this and the other files. */ + +void +implicit_function_declaration (void) +{ + f1 (); /* { dg-error "'f1' \\\[-Wimplicit-function-declaration\\\]" } */ +} + +extern implicit_int_1; /* { dg-error "'implicit_int_1' \\\[-Wimplicit-int\\\]" } */ +typedef implicit_int_2; /* { dg-error "'implicit_int_2' \\\[-Wimplicit-int\\\]" } */ +extern implicit_int_3 (void); /* { dg-error "'implicit_int_3' \\\[-Wimplicit-int\\]" } */ +implicit_int_4 (i) /* { dg-error "return type defaults to 'int' \\\[-Wimplicit-int\\\]" } */ +/* { dg-error "type of 'i' defaults to 'int' \\\[-Wimplicit-int\\\]" "" { target *-*-*} .-1 } */ +{ + (const) 0; /* { dg-error "type defaults to 'int' in type name \\\[-Wimplicit-int\\\]" } */ +} + +extern int missing_parameter_type (i); /* { dg-error "parameter names \\\(without types\\\) in function declaration\n" } */ + + +int * +int_conversion_1 (int flag) +{ + void f2 (int *); + flag ? "1" : 1; /* { dg-error "pointer/integer type mismatch in conditional expression \\\[-Wint-conversion\\\]" } */ + flag ? 1 : "1"; /* { dg-error "pointer/integer type mismatch in conditional expression \\\[-Wint-conversion\\\]" } */ + f2 (flag); /* { dg-error "passing argument 1 of 'f2' makes pointer from integer without a cast \\\[-Wint-conversion\\\]" } */ + { + int i1 = &flag; /* { dg-error "initialization of 'int' from 'int \\\*' makes integer from pointer without a cast \\\[-Wint-conversion\\\]" } */ + i1 = &flag; /* { dg-error "assignment to 'int' from 'int \\\*' makes integer from pointer without a cast \\\[-Wint-conversion\\\]" } */ + } + return flag; /* { dg-error "returning 'int' from a function with return type 'int \\\*' makes pointer from integer without a cast \\\[-Wint-conversion\\\]" } */ +} + +int +int_conversion_2 (int flag) +{ + void f3 (int); + f3 (&flag); /* { dg-error "passing argument 1 of 'f3' makes integer from pointer without a cast \\\[-Wint-conversion\\\]" } */ + { + int *i1 = flag; /* { dg-error "initialization of 'int \\\*' from 'int' makes pointer from integer without a cast \\\[-Wint-conversion\\\]" } */ + i1 = flag; /* { dg-error "assignment to 'int \\\*' from 'int' makes pointer from integer without a cast \\\[-Wint-conversion\\\]" } */ + } + return &flag; /* { dg-error "returning 'int \\\*' from a function with return type 'int' makes integer from pointer without a cast \\\[-Wint-conversion\\\]" } */ +} + +int * +incompatible_pointer_types (int flag) +{ + void f4 (int *); + flag ? __builtin_abs : __builtin_labs; /* { dg-warning "pointer type mismatch in conditional expression \\\[-Wincompatible-pointer-types\\\]" } */ + { + int *p1 = __builtin_abs; /* { dg-error "initialization of 'int \\\*' from pointer to '__builtin_abs' with incompatible type 'int \\\(\\\*\\\)\\\(int\\\)' \\\[-Wincompatible-pointer-types\\\]" } */ + p1 = __builtin_abs; /* { dg-error "assignment to 'int \\\*' from pointer to '__builtin_abs' with incompatible type 'int \\\(\\\*\\\)\\\(int\\\)' \\\[-Wincompatible-pointer-types\\\]" } */ + } + { + int *p2 = incompatible_pointer_types; /* { dg-error "initialization of 'int \\\*' from incompatible pointer type 'int \\\* \\\(\\\*\\\)\\\(int\\\)' \\\[-Wincompatible-pointer-types\\\]" } */ + p2 = incompatible_pointer_types; /* { dg-error "assignment to 'int \\\*' from incompatible pointer type 'int \\\* \\\(\\\*\\\)\\\(int\\\)' \\\[-Wincompatible-pointer-types\\\]" } */ + { + int *p3 = &p2; /* { dg-error "initialization of 'int \\\*' from incompatible pointer type 'int \\\*\\\*' \\\[-Wincompatible-pointer-types\\\]" } */ + p3 = &p2; /* { dg-error "assignment to 'int \\\*' from incompatible pointer type 'int \\\*\\\*' \\\[-Wincompatible-pointer-types\\\]" } */ + } + f4 (&p2); /* { dg-error "passing argument 1 of 'f4' from incompatible pointer type \\\[-Wincompatible-pointer-types\\\]" } */ + } + if (flag) + return __builtin_abs; /* { dg-error "returning pointer to '__builtin_abs' of type 'int \\\(\\\*\\\)\\\(int\\\)' from a function with incompatible type 'int \\\*' \\\[-Wincompatible-pointer-types\\\]" } */ + else + return incompatible_pointer_types; /* { dg-error "returning 'int \\\* \\\(\\\*\\\)\\\(int\\\)' from a function with incompatible return type 'int \\\*' \\\[-Wincompatible-pointer-types\\\]" } */ +} + +void +return_mismatch_1 (void) +{ + return 0; /* { dg-error "'return' with a value, in function returning void \\\[-Wreturn-mismatch\\\]" } */ +} + +int +return_mismatch_2 (void) +{ + return; /* { dg-error "return' with no value, in function returning non-void \\\[-Wreturn-mismatch\\\]" } */ +} diff --git a/gcc/testsuite/gcc.dg/permerror-system.c b/gcc/testsuite/gcc.dg/permerror-system.c new file mode 100644 index 00000000000..e6a978e494d --- /dev/null +++ b/gcc/testsuite/gcc.dg/permerror-system.c @@ -0,0 +1,9 @@ +/* { dg-options "-isystem ${srcdir}" } */ + +/* Test that permerrors appear in system headers. */ + +/* The dg-* directives in the header file are ignored. No warnings are + expected. */ +#include + +/* These errors come from permerror-default.c. No errors yet. */