Skip to content

Commit cecfa36

Browse files
AaronBallmanAaronBallman
authored
Revert "[C23] Add __TYPE_FMTB__ and __TYPE_FMTb__ predefined macros (#82037)"
This reverts commit b3050f5.
1 parent 35cfaec commit cecfa36

File tree

3 files changed

+47
-128
lines changed

3 files changed

+47
-128
lines changed

‎clang/docs/ReleaseNotes.rst

Lines changed: 0 additions & 5 deletions
Original file line numberDiff line numberDiff line change
@@ -135,11 +135,6 @@ C23 Feature Support
135135
136136
Fixes (`#81472 <https://github.com/llvm/llvm-project/issues/81472>`_).
137137

138-
- Clang now generates predefined macros of the form ``__TYPE_FMTB__`` and
139-
``__TYPE_FMTb__`` (e.g., ``__UINT_FAST64_FMTB__``) in C23 mode for use with
140-
macros typically exposed from ``<inttypes.h>``, such as ``PRIb8``.
141-
(`#81896: <https://github.com/llvm/llvm-project/issues/81896>`_).
142-
143138
Non-comprehensive list of changes in this release
144139
-------------------------------------------------
145140

‎clang/lib/Frontend/InitPreprocessor.cpp

Lines changed: 47 additions & 59 deletions
Original file line numberDiff line numberDiff line change
@@ -181,21 +181,14 @@ static void DefineTypeSize(const Twine &MacroName, TargetInfo::IntType Ty,
181181
TI.isTypeSigned(Ty), Builder);
182182
}
183183

184-
static void DefineFmt(const LangOptions &LangOpts, const Twine &Prefix,
185-
TargetInfo::IntType Ty, const TargetInfo &TI,
186-
MacroBuilder &Builder) {
187-
StringRef FmtModifier = TI.getTypeFormatModifier(Ty);
188-
auto Emitter = [&](char Fmt) {
189-
Builder.defineMacro(Prefix + "_FMT" + Twine(Fmt) + "__",
190-
Twine("\"") + FmtModifier + Twine(Fmt) + "\"");
191-
};
184+
static void DefineFmt(const Twine &Prefix, TargetInfo::IntType Ty,
185+
const TargetInfo &TI, MacroBuilder &Builder) {
192186
bool IsSigned = TI.isTypeSigned(Ty);
193-
llvm::for_each(StringRef(IsSigned ? "di" : "ouxX"), Emitter);
194-
195-
// C23 added the b and B modifiers for printing binary output of unsigned
196-
// integers. Conditionally define those if compiling in C23 mode.
197-
if (LangOpts.C23 && !IsSigned)
198-
llvm::for_each(StringRef("bB"), Emitter);
187+
StringRef FmtModifier = TI.getTypeFormatModifier(Ty);
188+
for (const char *Fmt = IsSigned ? "di" : "ouxX"; *Fmt; ++Fmt) {
189+
Builder.defineMacro(Prefix + "_FMT" + Twine(*Fmt) + "__",
190+
Twine("\"") + FmtModifier + Twine(*Fmt) + "\"");
191+
}
199192
}
200193

201194
static void DefineType(const Twine &MacroName, TargetInfo::IntType Ty,
@@ -224,8 +217,7 @@ static void DefineTypeSizeAndWidth(const Twine &Prefix, TargetInfo::IntType Ty,
224217
DefineTypeWidth(Prefix + "_WIDTH__", Ty, TI, Builder);
225218
}
226219

227-
static void DefineExactWidthIntType(const LangOptions &LangOpts,
228-
TargetInfo::IntType Ty,
220+
static void DefineExactWidthIntType(TargetInfo::IntType Ty,
229221
const TargetInfo &TI,
230222
MacroBuilder &Builder) {
231223
int TypeWidth = TI.getTypeWidth(Ty);
@@ -244,7 +236,7 @@ static void DefineExactWidthIntType(const LangOptions &LangOpts,
244236
const char *Prefix = IsSigned ? "__INT" : "__UINT";
245237

246238
DefineType(Prefix + Twine(TypeWidth) + "_TYPE__", Ty, Builder);
247-
DefineFmt(LangOpts, Prefix + Twine(TypeWidth), Ty, TI, Builder);
239+
DefineFmt(Prefix + Twine(TypeWidth), Ty, TI, Builder);
248240

249241
StringRef ConstSuffix(TI.getTypeConstantSuffix(Ty));
250242
Builder.defineMacro(Prefix + Twine(TypeWidth) + "_C_SUFFIX__", ConstSuffix);
@@ -267,8 +259,7 @@ static void DefineExactWidthIntTypeSize(TargetInfo::IntType Ty,
267259
DefineTypeSize(Prefix + Twine(TypeWidth) + "_MAX__", Ty, TI, Builder);
268260
}
269261

270-
static void DefineLeastWidthIntType(const LangOptions &LangOpts,
271-
unsigned TypeWidth, bool IsSigned,
262+
static void DefineLeastWidthIntType(unsigned TypeWidth, bool IsSigned,
272263
const TargetInfo &TI,
273264
MacroBuilder &Builder) {
274265
TargetInfo::IntType Ty = TI.getLeastIntTypeByWidth(TypeWidth, IsSigned);
@@ -283,12 +274,11 @@ static void DefineLeastWidthIntType(const LangOptions &LangOpts,
283274
DefineTypeSizeAndWidth(Prefix + Twine(TypeWidth), Ty, TI, Builder);
284275
else
285276
DefineTypeSize(Prefix + Twine(TypeWidth) + "_MAX__", Ty, TI, Builder);
286-
DefineFmt(LangOpts, Prefix + Twine(TypeWidth), Ty, TI, Builder);
277+
DefineFmt(Prefix + Twine(TypeWidth), Ty, TI, Builder);
287278
}
288279

289-
static void DefineFastIntType(const LangOptions &LangOpts, unsigned TypeWidth,
290-
bool IsSigned, const TargetInfo &TI,
291-
MacroBuilder &Builder) {
280+
static void DefineFastIntType(unsigned TypeWidth, bool IsSigned,
281+
const TargetInfo &TI, MacroBuilder &Builder) {
292282
// stdint.h currently defines the fast int types as equivalent to the least
293283
// types.
294284
TargetInfo::IntType Ty = TI.getLeastIntTypeByWidth(TypeWidth, IsSigned);
@@ -303,7 +293,7 @@ static void DefineFastIntType(const LangOptions &LangOpts, unsigned TypeWidth,
303293
DefineTypeSizeAndWidth(Prefix + Twine(TypeWidth), Ty, TI, Builder);
304294
else
305295
DefineTypeSize(Prefix + Twine(TypeWidth) + "_MAX__", Ty, TI, Builder);
306-
DefineFmt(LangOpts, Prefix + Twine(TypeWidth), Ty, TI, Builder);
296+
DefineFmt(Prefix + Twine(TypeWidth), Ty, TI, Builder);
307297
}
308298

309299

@@ -1130,28 +1120,27 @@ static void InitializePredefinedMacros(const TargetInfo &TI,
11301120
DefineTypeSizeof("__SIZEOF_INT128__", 128, TI, Builder);
11311121

11321122
DefineType("__INTMAX_TYPE__", TI.getIntMaxType(), Builder);
1133-
DefineFmt(LangOpts, "__INTMAX", TI.getIntMaxType(), TI, Builder);
1123+
DefineFmt("__INTMAX", TI.getIntMaxType(), TI, Builder);
11341124
Builder.defineMacro("__INTMAX_C_SUFFIX__",
11351125
TI.getTypeConstantSuffix(TI.getIntMaxType()));
11361126
DefineType("__UINTMAX_TYPE__", TI.getUIntMaxType(), Builder);
1137-
DefineFmt(LangOpts, "__UINTMAX", TI.getUIntMaxType(), TI, Builder);
1127+
DefineFmt("__UINTMAX", TI.getUIntMaxType(), TI, Builder);
11381128
Builder.defineMacro("__UINTMAX_C_SUFFIX__",
11391129
TI.getTypeConstantSuffix(TI.getUIntMaxType()));
11401130
DefineType("__PTRDIFF_TYPE__", TI.getPtrDiffType(LangAS::Default), Builder);
1141-
DefineFmt(LangOpts, "__PTRDIFF", TI.getPtrDiffType(LangAS::Default), TI,
1142-
Builder);
1131+
DefineFmt("__PTRDIFF", TI.getPtrDiffType(LangAS::Default), TI, Builder);
11431132
DefineType("__INTPTR_TYPE__", TI.getIntPtrType(), Builder);
1144-
DefineFmt(LangOpts, "__INTPTR", TI.getIntPtrType(), TI, Builder);
1133+
DefineFmt("__INTPTR", TI.getIntPtrType(), TI, Builder);
11451134
DefineType("__SIZE_TYPE__", TI.getSizeType(), Builder);
1146-
DefineFmt(LangOpts, "__SIZE", TI.getSizeType(), TI, Builder);
1135+
DefineFmt("__SIZE", TI.getSizeType(), TI, Builder);
11471136
DefineType("__WCHAR_TYPE__", TI.getWCharType(), Builder);
11481137
DefineType("__WINT_TYPE__", TI.getWIntType(), Builder);
11491138
DefineTypeSizeAndWidth("__SIG_ATOMIC", TI.getSigAtomicType(), TI, Builder);
11501139
DefineType("__CHAR16_TYPE__", TI.getChar16Type(), Builder);
11511140
DefineType("__CHAR32_TYPE__", TI.getChar32Type(), Builder);
11521141

11531142
DefineType("__UINTPTR_TYPE__", TI.getUIntPtrType(), Builder);
1154-
DefineFmt(LangOpts, "__UINTPTR", TI.getUIntPtrType(), TI, Builder);
1143+
DefineFmt("__UINTPTR", TI.getUIntPtrType(), TI, Builder);
11551144

11561145
// The C standard requires the width of uintptr_t and intptr_t to be the same,
11571146
// per 7.20.2.4p1. Same for intmax_t and uintmax_t, per 7.20.2.5p1.
@@ -1227,66 +1216,65 @@ static void InitializePredefinedMacros(const TargetInfo &TI,
12271216
Builder.defineMacro("__WINT_UNSIGNED__");
12281217

12291218
// Define exact-width integer types for stdint.h
1230-
DefineExactWidthIntType(LangOpts, TargetInfo::SignedChar, TI, Builder);
1219+
DefineExactWidthIntType(TargetInfo::SignedChar, TI, Builder);
12311220

12321221
if (TI.getShortWidth() > TI.getCharWidth())
1233-
DefineExactWidthIntType(LangOpts, TargetInfo::SignedShort, TI, Builder);
1222+
DefineExactWidthIntType(TargetInfo::SignedShort, TI, Builder);
12341223

12351224
if (TI.getIntWidth() > TI.getShortWidth())
1236-
DefineExactWidthIntType(LangOpts, TargetInfo::SignedInt, TI, Builder);
1225+
DefineExactWidthIntType(TargetInfo::SignedInt, TI, Builder);
12371226

12381227
if (TI.getLongWidth() > TI.getIntWidth())
1239-
DefineExactWidthIntType(LangOpts, TargetInfo::SignedLong, TI, Builder);
1228+
DefineExactWidthIntType(TargetInfo::SignedLong, TI, Builder);
12401229

12411230
if (TI.getLongLongWidth() > TI.getLongWidth())
1242-
DefineExactWidthIntType(LangOpts, TargetInfo::SignedLongLong, TI, Builder);
1231+
DefineExactWidthIntType(TargetInfo::SignedLongLong, TI, Builder);
12431232

1244-
DefineExactWidthIntType(LangOpts, TargetInfo::UnsignedChar, TI, Builder);
1233+
DefineExactWidthIntType(TargetInfo::UnsignedChar, TI, Builder);
12451234
DefineExactWidthIntTypeSize(TargetInfo::UnsignedChar, TI, Builder);
12461235
DefineExactWidthIntTypeSize(TargetInfo::SignedChar, TI, Builder);
12471236

12481237
if (TI.getShortWidth() > TI.getCharWidth()) {
1249-
DefineExactWidthIntType(LangOpts, TargetInfo::UnsignedShort, TI, Builder);
1238+
DefineExactWidthIntType(TargetInfo::UnsignedShort, TI, Builder);
12501239
DefineExactWidthIntTypeSize(TargetInfo::UnsignedShort, TI, Builder);
12511240
DefineExactWidthIntTypeSize(TargetInfo::SignedShort, TI, Builder);
12521241
}
12531242

12541243
if (TI.getIntWidth() > TI.getShortWidth()) {
1255-
DefineExactWidthIntType(LangOpts, TargetInfo::UnsignedInt, TI, Builder);
1244+
DefineExactWidthIntType(TargetInfo::UnsignedInt, TI, Builder);
12561245
DefineExactWidthIntTypeSize(TargetInfo::UnsignedInt, TI, Builder);
12571246
DefineExactWidthIntTypeSize(TargetInfo::SignedInt, TI, Builder);
12581247
}
12591248

12601249
if (TI.getLongWidth() > TI.getIntWidth()) {
1261-
DefineExactWidthIntType(LangOpts, TargetInfo::UnsignedLong, TI, Builder);
1250+
DefineExactWidthIntType(TargetInfo::UnsignedLong, TI, Builder);
12621251
DefineExactWidthIntTypeSize(TargetInfo::UnsignedLong, TI, Builder);
12631252
DefineExactWidthIntTypeSize(TargetInfo::SignedLong, TI, Builder);
12641253
}
12651254

12661255
if (TI.getLongLongWidth() > TI.getLongWidth()) {
1267-
DefineExactWidthIntType(LangOpts, TargetInfo::UnsignedLongLong, TI,
1268-
Builder);
1256+
DefineExactWidthIntType(TargetInfo::UnsignedLongLong, TI, Builder);
12691257
DefineExactWidthIntTypeSize(TargetInfo::UnsignedLongLong, TI, Builder);
12701258
DefineExactWidthIntTypeSize(TargetInfo::SignedLongLong, TI, Builder);
12711259
}
12721260

1273-
DefineLeastWidthIntType(LangOpts, 8, true, TI, Builder);
1274-
DefineLeastWidthIntType(LangOpts, 8, false, TI, Builder);
1275-
DefineLeastWidthIntType(LangOpts, 16, true, TI, Builder);
1276-
DefineLeastWidthIntType(LangOpts, 16, false, TI, Builder);
1277-
DefineLeastWidthIntType(LangOpts, 32, true, TI, Builder);
1278-
DefineLeastWidthIntType(LangOpts, 32, false, TI, Builder);
1279-
DefineLeastWidthIntType(LangOpts, 64, true, TI, Builder);
1280-
DefineLeastWidthIntType(LangOpts, 64, false, TI, Builder);
1281-
1282-
DefineFastIntType(LangOpts, 8, true, TI, Builder);
1283-
DefineFastIntType(LangOpts, 8, false, TI, Builder);
1284-
DefineFastIntType(LangOpts, 16, true, TI, Builder);
1285-
DefineFastIntType(LangOpts, 16, false, TI, Builder);
1286-
DefineFastIntType(LangOpts, 32, true, TI, Builder);
1287-
DefineFastIntType(LangOpts, 32, false, TI, Builder);
1288-
DefineFastIntType(LangOpts, 64, true, TI, Builder);
1289-
DefineFastIntType(LangOpts, 64, false, TI, Builder);
1261+
DefineLeastWidthIntType(8, true, TI, Builder);
1262+
DefineLeastWidthIntType(8, false, TI, Builder);
1263+
DefineLeastWidthIntType(16, true, TI, Builder);
1264+
DefineLeastWidthIntType(16, false, TI, Builder);
1265+
DefineLeastWidthIntType(32, true, TI, Builder);
1266+
DefineLeastWidthIntType(32, false, TI, Builder);
1267+
DefineLeastWidthIntType(64, true, TI, Builder);
1268+
DefineLeastWidthIntType(64, false, TI, Builder);
1269+
1270+
DefineFastIntType(8, true, TI, Builder);
1271+
DefineFastIntType(8, false, TI, Builder);
1272+
DefineFastIntType(16, true, TI, Builder);
1273+
DefineFastIntType(16, false, TI, Builder);
1274+
DefineFastIntType(32, true, TI, Builder);
1275+
DefineFastIntType(32, false, TI, Builder);
1276+
DefineFastIntType(64, true, TI, Builder);
1277+
DefineFastIntType(64, false, TI, Builder);
12901278

12911279
Builder.defineMacro("__USER_LABEL_PREFIX__", TI.getUserLabelPrefix());
12921280

‎clang/test/Preprocessor/init.c

Lines changed: 0 additions & 64 deletions
Original file line numberDiff line numberDiff line change
@@ -93,70 +93,6 @@
9393
// C99-NOT: __GXX_WEAK__
9494
// C99-NOT: __cplusplus
9595
//
96-
// RUN: %clang_cc1 -std=c17 -E -dM < /dev/null | FileCheck -match-full-lines -check-prefix C17-FMT %s
97-
// RUN: %clang_cc1 -std=c23 -E -dM < /dev/null | FileCheck -match-full-lines -check-prefix C23-FMT %s
98-
//
99-
// C17-FMT-NOT: __SIZE_FMTB__
100-
// C17-FMT-NOT: __SIZE_FMTb__
101-
// C17-FMT-NOT: __UINT8_FMTB__
102-
// C17-FMT-NOT: __UINT8_FMTb__
103-
// C17-FMT-NOT: __UINT16_FMTB__
104-
// C17-FMT-NOT: __UINT16_FMTb__
105-
// C17-FMT-NOT: __UINT32_FMTB__
106-
// C17-FMT-NOT: __UINT32_FMTb__
107-
// C17-FMT-NOT: __UINT64_FMTB__
108-
// C17-FMT-NOT: __UINT64_FMTb__
109-
// C17-FMT-NOT: __UINTMAX_FMTB__
110-
// C17-FMT-NOT: __UINTMAX_FMTb__
111-
// C17-FMT-NOT: __UINTPTR_FMTB__
112-
// C17-FMT-NOT: __UINTPTR_FMTb__
113-
// C17-FMT-NOT: __UINT_FAST16_FMTB__
114-
// C17-FMT-NOT: __UINT_FAST16_FMTb__
115-
// C17-FMT-NOT: __UINT_FAST32_FMTB__
116-
// C17-FMT-NOT: __UINT_FAST32_FMTb__
117-
// C17-FMT-NOT: __UINT_FAST64_FMTB__
118-
// C17-FMT-NOT: __UINT_FAST64_FMTb__
119-
// C17-FMT-NOT: __UINT_FAST8_FMTB__
120-
// C17-FMT-NOT: __UINT_FAST8_FMTb__
121-
// C17-FMT-NOT: __UINT_LEAST16_FMTB__
122-
// C17-FMT-NOT: __UINT_LEAST16_FMTb__
123-
// C17-FMT-NOT: __UINT_LEAST32_FMTB__
124-
// C17-FMT-NOT: __UINT_LEAST32_FMTb__
125-
// C17-FMT-NOT: __UINT_LEAST64_FMTB__
126-
// C17-FMT-NOT: __UINT_LEAST64_FMTb__
127-
// C17-FMT-NOT: __UINT_LEAST8_FMTB__
128-
// C17-FMT-NOT: __UINT_LEAST8_FMTb__
129-
// C23-FMT: #define __SIZE_FMTB__ "llB"
130-
// C23-FMT: #define __SIZE_FMTb__ "llb"
131-
// C23-FMT: #define __UINT16_FMTB__ "hB"
132-
// C23-FMT: #define __UINT16_FMTb__ "hb"
133-
// C23-FMT: #define __UINT32_FMTB__ "B"
134-
// C23-FMT: #define __UINT32_FMTb__ "b"
135-
// C23-FMT: #define __UINT64_FMTB__ "llB"
136-
// C23-FMT: #define __UINT64_FMTb__ "llb"
137-
// C23-FMT: #define __UINT8_FMTB__ "hhB"
138-
// C23-FMT: #define __UINT8_FMTb__ "hhb"
139-
// C23-FMT: #define __UINTMAX_FMTB__ "llB"
140-
// C23-FMT: #define __UINTMAX_FMTb__ "llb"
141-
// C23-FMT: #define __UINTPTR_FMTB__ "llB"
142-
// C23-FMT: #define __UINTPTR_FMTb__ "llb"
143-
// C23-FMT: #define __UINT_FAST16_FMTB__ "hB"
144-
// C23-FMT: #define __UINT_FAST16_FMTb__ "hb"
145-
// C23-FMT: #define __UINT_FAST32_FMTB__ "B"
146-
// C23-FMT: #define __UINT_FAST32_FMTb__ "b"
147-
// C23-FMT: #define __UINT_FAST64_FMTB__ "llB"
148-
// C23-FMT: #define __UINT_FAST64_FMTb__ "llb"
149-
// C23-FMT: #define __UINT_FAST8_FMTB__ "hhB"
150-
// C23-FMT: #define __UINT_FAST8_FMTb__ "hhb"
151-
// C23-FMT: #define __UINT_LEAST16_FMTB__ "hB"
152-
// C23-FMT: #define __UINT_LEAST16_FMTb__ "hb"
153-
// C23-FMT: #define __UINT_LEAST32_FMTB__ "B"
154-
// C23-FMT: #define __UINT_LEAST32_FMTb__ "b"
155-
// C23-FMT: #define __UINT_LEAST64_FMTB__ "llB"
156-
// C23-FMT: #define __UINT_LEAST64_FMTb__ "llb"
157-
// C23-FMT: #define __UINT_LEAST8_FMTB__ "hhB"
158-
// C23-FMT: #define __UINT_LEAST8_FMTb__ "hhb"
159-
//
16096
//
16197
// RUN: %clang_cc1 -std=c11 -E -dM < /dev/null | FileCheck -match-full-lines -check-prefix C11 %s
16298
// RUN: %clang_cc1 -std=c1x -E -dM < /dev/null | FileCheck -match-full-lines -check-prefix C11 %s

0 commit comments

Comments
 (0)