Looks like this might break tests: http://45.33.8.238/linux/80043/step_7.txt
On Thu, Jun 30, 2022, 9:47 PM Aaron Ballman via cfe-commits < cfe-commits@lists.llvm.org> wrote: > > Author: Aaron Ballman > Date: 2022-06-30T15:46:47-04:00 > New Revision: cce06da1ecf789658551ca5f3b255c361f063abf > > URL: > https://github.com/llvm/llvm-project/commit/cce06da1ecf789658551ca5f3b255c361f063abf > DIFF: > https://github.com/llvm/llvm-project/commit/cce06da1ecf789658551ca5f3b255c361f063abf.diff > > LOG: Test and document some C99 DRs > > This captures the first 15 or so DRs in C99 > > Added: > clang/test/C/drs/dr206.c > clang/test/C/drs/dr208.c > clang/test/C/drs/dr209.c > clang/test/C/drs/dr2xx.c > > Modified: > clang/www/c_dr_status.html > > Removed: > > > > > ################################################################################ > diff --git a/clang/test/C/drs/dr206.c b/clang/test/C/drs/dr206.c > new file mode 100644 > index 0000000000000..d5686a43b3304 > --- /dev/null > +++ b/clang/test/C/drs/dr206.c > @@ -0,0 +1,23 @@ > +/* RUN: %clang_cc1 -std=c89 -Wno-deprecated-non-prototype -ast-dump -o - > %s | FileCheck %s > + RUN: %clang_cc1 -std=c99 -Wno-deprecated-non-prototype -ast-dump -o - > %s | FileCheck %s > + RUN: %clang_cc1 -std=c11 -Wno-deprecated-non-prototype -ast-dump -o - > %s | FileCheck %s > + RUN: %clang_cc1 -std=c17 -Wno-deprecated-non-prototype -ast-dump -o - > %s | FileCheck %s > + */ > + > +/* WG14 DR206: yes > + * Default argument conversion of float _Complex > + */ > +void dr206_unprototyped(); > +void dr206(void) { > + /* Ensure that _Complex float is not promoted to _Complex double but is > + * instead passed directly without a type conversion. > + */ > + _Complex float f = 1.2f; > + dr206_unprototyped(f); > + // CHECK: CallExpr 0x{{.*}} <line:16:3, col:23> 'void' > + // CHECK-NEXT: ImplicitCastExpr 0x{{.*}} <col:3> 'void (*)()' > <FunctionToPointerDecay> > + // CHECK-NEXT: DeclRefExpr 0x{{.*}} <col:3> 'void ()' Function 0x{{.*}} > 'dr206_unprototyped' 'void ()' > + // CHECK-NEXT: ImplicitCastExpr 0x{{.*}} <col:22> '_Complex float' > <LValueToRValue> > + // CHECK-NEXT: DeclRefExpr 0x{{.*}} <col:22> '_Complex float' lvalue > Var 0x{{.*}} 'f' '_Complex float' > +} > + > > diff --git a/clang/test/C/drs/dr208.c b/clang/test/C/drs/dr208.c > new file mode 100644 > index 0000000000000..aac27e7c1ad31 > --- /dev/null > +++ b/clang/test/C/drs/dr208.c > @@ -0,0 +1,24 @@ > +/* RUN: %clang_cc1 -std=c99 -verify -emit-llvm -o - %s | FileCheck %s > + RUN: %clang_cc1 -std=c11 -verify -emit-llvm -o - %s | FileCheck %s > + RUN: %clang_cc1 -std=c17 -verify -emit-llvm -o - %s | FileCheck %s > + RUN: %clang_cc1 -std=c2x -verify -emit-llvm -o - %s | FileCheck %s > + */ > + > +/* WG14 DR208: yes > + * Ambiguity in initialization > + */ > +int dr208_init(int); > +void dr208(void) { > + int a[2] = { > + dr208_init(0), /* expected-note {{previous initialization with > side effects is here (side effects will not occur at run time)}} */ > + dr208_init(1), > + [0] = dr208_init(2) /* expected-warning {{initializer overrides prior > initialization of this subobject}} */ > + }; > + > + /* CHECK-NOT: call i32 @dr208_init(i32 noundef 0) > + CHECK-DAG: call i32 @dr208_init(i32 noundef 1) > + CHECK-DAG: call i32 @dr208_init(i32 noundef 2) > + CHECK-NOT: call i32 @dr208_init(i32 noundef 0) > + */ > +} > + > > diff --git a/clang/test/C/drs/dr209.c b/clang/test/C/drs/dr209.c > new file mode 100644 > index 0000000000000..6cd6093a4b918 > --- /dev/null > +++ b/clang/test/C/drs/dr209.c > @@ -0,0 +1,61 @@ > +/* RUN: %clang_cc1 -std=c99 -ffreestanding -triple x86_64-unknown-linux > -fsyntax-only -verify -pedantic -Wno-c11-extensions %s > + RUN: %clang_cc1 -std=c99 -ffreestanding -triple x86_64-unknown-win32 > -fms-compatibility -fsyntax-only -verify -pedantic -Wno-c11-extensions %s > + RUN: %clang_cc1 -std=c11 -ffreestanding -fsyntax-only -verify > -pedantic %s > + RUN: %clang_cc1 -std=c17 -ffreestanding -fsyntax-only -verify > -pedantic %s > + RUN: %clang_cc1 -std=c2x -ffreestanding -fsyntax-only -verify > -pedantic %s > + */ > + > +/* WG14 DR209: partial > + * Problem implementing INTN_C macros > + */ > +#include <stdint.h> > + > +#if INT8_C(0) != 0 > +#error "uh oh" > +#elif INT16_C(0) != 0 > +#error "uh oh" > +#elif INT32_C(0) != 0 > +#error "uh oh" > +#elif INT64_C(0) != 0LL > +#error "uh oh" > +#elif UINT8_C(0) != 0U > +#error "uh oh" > +#elif UINT16_C(0) != 0U > +#error "uh oh" > +#elif UINT32_C(0) != 0U > +#error "uh oh" > +#elif UINT64_C(0) != 0ULL > +#error "uh oh" > +#endif > + > +void dr209(void) { > + (void)_Generic(INT8_C(0), __typeof__(+(int_least8_t){0}) : 1); > + (void)_Generic(INT16_C(0), __typeof__(+(int_least16_t){0}) : 1); > + (void)_Generic(INT32_C(0), __typeof__(+(int_least32_t){0}) : 1); > + (void)_Generic(INT64_C(0), __typeof__(+(int_least64_t){0}) : 1); > + (void)_Generic(UINT8_C(0), __typeof__(+(uint_least8_t){0}) : 1); > + (void)_Generic(UINT16_C(0), __typeof__(+(uint_least16_t){0}) : 1); > + // FIXME: This is not the expected behavior; the type of the expanded > value > + // in both of these cases should be 'int', > + // > + // C99 7.18.4p3: The type of the expression shall have the same type as > would > + // an expression of the corresponding type converted according to the > integer > + // promotions. > + // > + // C99 7.18.4.1p1: The macro UINTN_C(value) shall expand to an integer > + // constant expression corresponding to the type uint_leastN_t. > + // > + // C99 7.18.1.2p2: The typedef name uint_leastN_t designates an unsigned > + // integer type with a width of at least N, ... > + // > + // So the value's type is the same underlying type as uint_leastN_t, > which is > + // unsigned char for uint_least8_t, and unsigned short for > uint_least16_t, > + // but then the value undergoes integer promotions which would convert > both > + // of those types to int. > + // > + // expected-error@-2 {{controlling expression type 'unsigned int' not > compatible with any generic association type}} > + // expected-error@-2 {{controlling expression type 'unsigned int' not > compatible with any generic association type}} > + (void)_Generic(UINT32_C(0), __typeof__(+(uint_least32_t){0}) : 1); > + (void)_Generic(UINT64_C(0), __typeof__(+(uint_least64_t){0}) : 1); > +} > + > > diff --git a/clang/test/C/drs/dr2xx.c b/clang/test/C/drs/dr2xx.c > new file mode 100644 > index 0000000000000..0fa0f97858197 > --- /dev/null > +++ b/clang/test/C/drs/dr2xx.c > @@ -0,0 +1,82 @@ > +/* RUN: %clang_cc1 -std=c89 -fsyntax-only -verify=expected,c89only > -pedantic -Wno-c11-extensions %s > + RUN: %clang_cc1 -std=c99 -triple x86_64-unknown-linux -fsyntax-only > -verify=expected,c99untilc2x -pedantic -Wno-c11-extensions %s > + RUN: %clang_cc1 -std=c99 -triple x86_64-unknown-win32 > -fms-compatibility -fsyntax-only -verify=expected,c99untilc2x -pedantic > -Wno-c11-extensions %s > + RUN: %clang_cc1 -std=c11 -fsyntax-only -verify=expected,c99untilc2x > -pedantic %s > + RUN: %clang_cc1 -std=c17 -fsyntax-only -verify=expected,c99untilc2x > -pedantic %s > + RUN: %clang_cc1 -std=c2x -fsyntax-only -verify=expected,c2xandup > -pedantic %s > + */ > + > +/* The following are DRs which do not require tests to demonstrate > + * conformance or nonconformance. > + * > + * WG14 DR201: yes > + * Integer types longer than long > + * > + * WG14 DR211: yes > + * Accuracy of decimal string to/from "binary" (non-decimal) > floating-point conversions > + * > + * WG14 DR215: yes > + * Equality operators > + */ > + > + > +/* WG14 DR204: yes > + * size_t and ptr > diff _t as a long long type > + */ > +void dr204(void) { > + __typeof__(sizeof(0)) s; > + __typeof__((int *)0 - (int *)0) p; > + signed long sl; > +#if __LLONG_WIDTH__ > __LONG_WIDTH__ > + /* If the implementation supports a standard integer type larger than > signed > + * long, it's okay for size_t and ptr > diff _t to have a greater integer > + * conversion rank than signed long. > + */ > + (void)_Generic(s + sl, __typeof__(s) : 1); > + (void)_Generic(p + sl, __typeof__(p) : 1); > +#elif __LLONG_WIDTH__ == __LONG_WIDTH__ > + /* But if the implementation doesn't support a larger standard integer > type > + * than signed long, the conversion rank should prefer signed long if > the type > + * is signed (ptr > diff _t) or unsigned long if the type is unsigned (size_t). > + */ > + (void)_Generic(s + sl, unsigned long : 1); > + (void)_Generic(p + sl, signed long : 1); > +#else > +#error "Something has gone off the rails" > +#endif > +} > + > +/* WG14 DR207: partial > + * Handling of imaginary types > + * > + * FIXME: Clang recognizes the _Imaginary keyword but does not support > the data > + * type. > + */ > +void dr207(void) { > + _Imaginary float f; /* expected-error {{imaginary types are not > supported}} > + c89only-warning {{'_Imaginary' is a C99 > extension}} > + */ > +} > + > +/* WG14 DR216: yes > + * Source character encodings > + */ > +void dr216(void) { > +#define A(x) _Static_assert((char)x >= 0, "no") > + A('A'); A('B'); A('C'); A('D'); A('E'); A('F'); A('G'); A('H'); A('I'); > + A('J'); A('K'); A('L'); A('M'); A('N'); A('O'); A('P'); A('Q'); A('R'); > + A('S'); A('T'); A('U'); A('V'); A('W'); A('X'); A('Y'); A('Z'); > + > + A('a'); A('b'); A('c'); A('d'); A('e'); A('f'); A('g'); A('h'); A('i'); > + A('j'); A('k'); A('l'); A('m'); A('n'); A('o'); A('p'); A('q'); A('r'); > + A('s'); A('t'); A('u'); A('v'); A('w'); A('x'); A('y'); A('z'); > + > + A('0'); A('1'); A('2'); A('3'); A('4'); > + A('5'); A('6'); A('7'); A('8'); A('9'); > + > + A('!'); A('"'); A('#'); A('%'); A('&'); A('\''); A('('); A(')'); A('*'); > + A('+'); A(','); A('-'); A('.'); A('/'); A(':'); A(';'); A('<'); A('='); > + A('>'); A('?'); A('['); A('\\'); A(']'); A('^'); A('_'); A('{'); A('|'); > + A('}'); A('~'); > +#undef A > +} > > diff --git a/clang/www/c_dr_status.html b/clang/www/c_dr_status.html > index e6e339d5f18ce..ea604b498a539 100644 > --- a/clang/www/c_dr_status.html > +++ b/clang/www/c_dr_status.html > @@ -1129,7 +1129,7 @@ <h2 id="cdr">C defect report implementation > status</h2> > <td><a href=" > https://www.open-std.org/jtc1/sc22/wg14/www/docs/dr_201.htm";>201</a></td> > <td>NAD</td> > <td>Integer types longer than long</td> > - <td class="unknown" align="center">Unknown</td> > + <td class="full" align="center">Yes</td> > </tr> > <tr id="202"> > <td><a href=" > https://www.open-std.org/jtc1/sc22/wg14/www/docs/dr_202.htm";>202</a></td> > @@ -1147,7 +1147,7 @@ <h2 id="cdr">C defect report implementation > status</h2> > <td><a href=" > https://www.open-std.org/jtc1/sc22/wg14/www/docs/dr_204.htm";>204</a></td> > <td>C99</td> > <td>size_t and ptr > diff _t as a long long type</td> > - <td class="unknown" align="center">Unknown</td> > + <td class="full" align="center">Yes</td> > </tr> > <tr id="205"> > <td><a href=" > https://www.open-std.org/jtc1/sc22/wg14/www/docs/dr_205.htm";>205</a></td> > @@ -1159,25 +1159,36 @@ <h2 id="cdr">C defect report implementation > status</h2> > <td><a href=" > https://www.open-std.org/jtc1/sc22/wg14/www/docs/dr_206.htm";>206</a></td> > <td>NAD</td> > <td>Default argument conversion of float _Complex</td> > - <td class="unknown" align="center">Unknown</td> > + <td class="full" align="center">Yes</td> > </tr> > <tr id="207"> > <td><a href=" > https://www.open-std.org/jtc1/sc22/wg14/www/docs/dr_207.htm";>207</a></td> > <td>C99</td> > <td>Handling of imaginary types</td> > - <td class="unknown" align="center">Unknown</td> > + <td class="partial" align="center"> > + <details><summary>Partial</summary> > + Clang detects use of the _Imaginary keyword but does not otherwise > + support the type yet. > + </details> > + </td> > </tr> > <tr id="208"> > <td><a href=" > https://www.open-std.org/jtc1/sc22/wg14/www/docs/dr_208.htm";>208</a></td> > <td>C99</td> > <td>Ambiguity in initialization</td> > - <td class="unknown" align="center">Unknown</td> > + <td class="full" align="center">Yes</td> > </tr> > <tr id="209"> > <td><a href=" > https://www.open-std.org/jtc1/sc22/wg14/www/docs/dr_209.htm";>209</a></td> > <td>C99</td> > <td>Problem implementing INTN_C macros</td> > - <td class="na" align="center">N/A</td> > + <td class="partial" align="center"> > + <details><summary>Partial</summary> > + Clang provides these definitions in a freestanding compilation, > but the > + type of the value produced by <code>UINT8_C</code> and > <code>UINT16_C</code> > + is not the type after integer promotion per C99 7.18.4p3. > + </details> > + </td> > </tr> > <tr id="210"> > <td><a href=" > https://www.open-std.org/jtc1/sc22/wg14/www/docs/dr_210.htm";>210</a></td> > @@ -1189,7 +1200,7 @@ <h2 id="cdr">C defect report implementation > status</h2> > <td><a href=" > https://www.open-std.org/jtc1/sc22/wg14/www/docs/dr_211.htm";>211</a></td> > <td>C99</td> > <td>Accuracy of decimal string to/from "binary" (non-decimal) > floating-point conversions</td> > - <td class="unknown" align="center">Unknown</td> > + <td class="full" align="center">Yes</td> > </tr> > <tr id="212"> > <td><a href=" > https://www.open-std.org/jtc1/sc22/wg14/www/docs/dr_212.htm";>212</a></td> > @@ -1213,13 +1224,13 @@ <h2 id="cdr">C defect report implementation > status</h2> > <td><a href=" > https://www.open-std.org/jtc1/sc22/wg14/www/docs/dr_215.htm";>215</a></td> > <td>C99</td> > <td>Equality operators</td> > - <td class="unknown" align="center">Unknown</td> > + <td class="full" align="center">Yes</td> > </tr> > <tr id="216"> > <td><a href=" > https://www.open-std.org/jtc1/sc22/wg14/www/docs/dr_216.htm";>216</a></td> > <td>C99</td> > <td>Source character encodings</td> > - <td class="unknown" align="center">Unknown</td> > + <td class="full" align="center">Yes</td> > </tr> > <tr id="217"> > <td><a href=" > https://www.open-std.org/jtc1/sc22/wg14/www/docs/dr_217.htm";>217</a></td> > > > > _______________________________________________ > cfe-commits mailing list > cfe-commits@lists.llvm.org > https://lists.llvm.org/cgi-bin/mailman/listinfo/cfe-commits >
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