forked from OSchip/llvm-project
Update the status & add tests for some more C99 DRs
This commit is contained in:
Aaron Ballman
parent
e0b5208650
commit
548f3f9061
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@ -0,0 +1,27 @@
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/* RUN: %clang_cc1 -std=c89 -ast-dump -o - %s | FileCheck %s
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RUN: %clang_cc1 -std=c99 -ast-dump -o - %s | FileCheck %s
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RUN: %clang_cc1 -std=c11 -ast-dump -o - %s | FileCheck %s
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RUN: %clang_cc1 -std=c17 -ast-dump -o - %s | FileCheck %s
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RUN: %clang_cc1 -std=c2x -ast-dump -o - %s | FileCheck %s
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*/
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/* WG14 DR253: yes
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* "overriding" in designated initializers
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*/
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struct fred {
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char s [6];
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int n;
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};
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struct fred y [] = { { { "abc" }, 1 }, [0] = { .s[0] = 'q' } };
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/* Ensure that y[0] is initialized as if by the initializer { 'q' }. */
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// CHECK: VarDecl 0x{{.*}} <line:16:1, col:62> col:13 y 'struct fred[1]' cinit
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// CHECK-NEXT: InitListExpr 0x{{.*}} <col:20, col:62> 'struct fred[1]'
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// CHECK-NEXT: InitListExpr 0x{{.*}} <col:46, col:60> 'struct fred':'struct fred'
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// CHECK-NEXT: InitListExpr 0x{{.*}} <col:50, col:56> 'char[6]'
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// CHECK-NEXT: array_filler
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// CHECK-NEXT: ImplicitCastExpr
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// CHECK-NEXT: CharacterLiteral 0x{{.*}} <col:56> 'int' 113
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// CHECK-NEXT: ImplicitValueInitExpr 0x{{.*}} <<invalid sloc>> 'int'
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@ -32,6 +32,18 @@
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*
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* WG14 DR234: yes
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* Miscellaneous Typos
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*
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* WG14 DR245: yes
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* Missing paragraph numbers
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*
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* WG14 DR247: yes
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* Are values a form of behaviour?
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*
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* WG14 DR248: yes
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* Limits are required for optional types
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*
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* WG14 DR255: yes
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* Non-prototyped function calls and argument mismatches
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*/
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@ -144,3 +156,99 @@ void dr230(void) {
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/* expected-error@-1 {{invalid preprocessing directive}} \
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expected-warning@-1 {{missing terminating ' character}}
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*/
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/* WG14 DR237: no
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* Declarations using [static]
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*/
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void dr237_f(int array[static 10]); /* c89only-warning {{static array size is a C99 feature}}
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expected-note {{callee declares array parameter as static here}}
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*/
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void dr237_1(void) {
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int array[4];
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dr237_f(array); /* expected-warning {{array argument is too small; contains 4 elements, callee requires at least 10}} */
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}
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/* FIXME: the composite type for this declaration should retain the static
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* array extent instead of losing it.
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*/
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void dr237_f(int array[]);
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void dr237_2(void) {
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int array[4];
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/* FIXME: this should diagnose the same as above. */
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dr237_f(array);
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}
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/* WG14 DR246: yes
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* Completion of declarators
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*/
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void dr246(void) {
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int i[i]; /* expected-error {{use of undeclared identifier 'i'}} */
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}
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/* WG14 DR250: yes
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* Non-directives within macro arguments
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*/
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void dr250(void) {
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#define dr250_nothing(x)
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/* FIXME: See DR231 regarding the error about an invalid preprocessing
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* directive.
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*/
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dr250_nothing(
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#nondirective /* expected-error {{invalid preprocessing directive}}
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expected-warning {{embedding a directive within macro arguments has undefined behavior}}
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*/
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)
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#undef dr250_nothing
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}
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/* WG14 DR251: yes
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* Are struct fred and union fred the same type?
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*/
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union dr251_fred { int a; }; /* expected-note {{previous use is here}} */
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void dr251(void) {
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struct dr251_fred *ptr; /* expected-error {{use of 'dr251_fred' with tag type that does not match previous declaration}} */
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}
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#if __STDC_VERSION__ < 202000L
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/* WG14 DR252: yes
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* Incomplete argument types when calling non-prototyped functions
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*/
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void dr252_no_proto(); /* expected-warning {{a function declaration without a prototype is deprecated in all versions of C}} */
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void dr252_proto(void); /* expected-note {{'dr252_proto' declared here}} */
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void dr252(void) {
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/* It's a constraint violation to pass an argument to a function with a
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* prototype that specifies a void parameter.
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*/
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dr252_proto(dr252_no_proto()); /* expected-error {{too many arguments to function call, expected 0, have 1}} */
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/* It's technically UB to pass an incomplete type to a function without a
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* prototype, but Clang treats it as an error.
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*/
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dr252_no_proto(dr252_proto()); /* expected-error {{argument type 'void' is incomplete}}
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expected-warning {{passing arguments to 'dr252_no_proto' without a prototype is deprecated in all versions of C and is not supported in C2x}}
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*/
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}
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#endif /* __STDC_VERSION__ < 202000L */
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/* WG14 DR258: yes
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* Ordering of "defined" and macro replacement
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*/
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void dr258(void) {
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/* We get the diagnostic twice because the argument is used twice in the
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* expansion. */
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#define repeat(x) x && x
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#if repeat(defined fred) /* expected-warning 2 {{macro expansion producing 'defined' has undefined behavior}} */
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#endif
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/* We get no diagnostic because the argument is unused. */
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#define forget(x) 0
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#if forget(defined fred)
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#endif
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#undef repeat
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#undef forget
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}
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@ -1356,7 +1356,7 @@ conformance.</p>
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<td><a href="https://www.open-std.org/jtc1/sc22/wg14/www/docs/dr_237.htm">237</a></td>
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<td>NAD</td>
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<td>Declarations using [static]</td>
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<td class="unknown" align="center">Unknown</td>
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<td class="none" align="center">No</td>
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</tr>
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<tr id="238">
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<td><a href="https://www.open-std.org/jtc1/sc22/wg14/www/docs/dr_238.htm">238</a></td>
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@ -1385,7 +1385,7 @@ conformance.</p>
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<tr id="242">
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<td><a href="https://www.open-std.org/jtc1/sc22/wg14/www/docs/dr_242.htm">242</a></td>
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<td>C99</td>
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<td></td>
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<td>Make the base standard and Annex F consistent for logb(0)</td>
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<td class="na" align="center">N/A</td>
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</tr>
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<tr id="243">
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@ -1410,49 +1410,49 @@ conformance.</p>
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<td><a href="https://www.open-std.org/jtc1/sc22/wg14/www/docs/dr_246.htm">246</a></td>
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<td>NAD</td>
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<td>Completion of declarators</td>
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<td class="unknown" align="center">Unknown</td>
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<td class="full" align="center">Yes</td>
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</tr>
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<tr id="247">
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<td><a href="https://www.open-std.org/jtc1/sc22/wg14/www/docs/dr_247.htm">247</a></td>
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<td>C99</td>
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<td>Are values a form of behaviour?</td>
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<td class="unknown" align="center">Unknown</td>
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<td class="full" align="center">Yes</td>
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</tr>
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<tr id="248">
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<td><a href="https://www.open-std.org/jtc1/sc22/wg14/www/docs/dr_248.htm">248</a></td>
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<td>C99</td>
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<td>limits are required for optional types</td>
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<td class="unknown" align="center">Unknown</td>
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<td>Limits are required for optional types</td>
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<td class="full" align="center">Yes</td>
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</tr>
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<tr id="249">
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<td><a href="https://www.open-std.org/jtc1/sc22/wg14/www/docs/dr_249.htm">249</a></td>
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<td>C99</td>
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<td>Dup</td>
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<td>Lacuna applying C89:TC1 to C99</td>
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<td class="unknown" align="center">Unknown</td>
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<td class="none" align="center">Duplicate of <a href="#9">9</a></td>
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</tr>
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<tr id="250">
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<td><a href="https://www.open-std.org/jtc1/sc22/wg14/www/docs/dr_250.htm">250</a></td>
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<td>C99</td>
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<td>Non-directives within macro arguments</td>
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<td class="unknown" align="center">Unknown</td>
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<td class="full" align="center">Yes</td>
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</tr>
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<tr id="251">
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<td><a href="https://www.open-std.org/jtc1/sc22/wg14/www/docs/dr_251.htm">251</a></td>
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<td>C99</td>
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<td>Are struct fred and union fred the same type?</td>
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<td class="unknown" align="center">Unknown</td>
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<td class="full" align="center">Yes</td>
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</tr>
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<tr id="252">
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<td><a href="https://www.open-std.org/jtc1/sc22/wg14/www/docs/dr_252.htm">252</a></td>
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<td>NAD</td>
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<td>Incomplete argument types when calling non-prototyped functions</td>
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<td class="unknown" align="center">Unknown</td>
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<td class="full" align="center">Yes</td>
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</tr>
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<tr id="253">
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<td><a href="https://www.open-std.org/jtc1/sc22/wg14/www/docs/dr_253.htm">253</a></td>
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<td>NAD</td>
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<td>"overriding" in designated initializers</td>
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<td class="unknown" align="center">Unknown</td>
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<td class="full" align="center">Yes</td>
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</tr>
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<tr id="254">
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<td><a href="https://www.open-std.org/jtc1/sc22/wg14/www/docs/dr_254.htm">254</a></td>
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@ -1464,7 +1464,7 @@ conformance.</p>
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<td><a href="https://www.open-std.org/jtc1/sc22/wg14/www/docs/dr_255.htm">255</a></td>
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<td>NAD</td>
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<td>Non-prototyped function calls and argument mismatches</td>
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<td class="unknown" align="center">Unknown</td>
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<td class="full" align="center">Yes</td>
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</tr>
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<tr id="256">
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<td><a href="https://www.open-std.org/jtc1/sc22/wg14/www/docs/dr_256.htm">256</a></td>
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@ -1482,7 +1482,7 @@ conformance.</p>
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<td><a href="https://www.open-std.org/jtc1/sc22/wg14/www/docs/dr_258.htm">258</a></td>
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<td>NAD</td>
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<td>Ordering of "defined" and macro replacement</td>
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<td class="unknown" align="center">Unknown</td>
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<td class="full" align="center">Yes</td>
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</tr>
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<tr id="259">
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<td><a href="https://www.open-std.org/jtc1/sc22/wg14/www/docs/dr_259.htm">259</a></td>
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