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Driver: hoist the `wchar_t` handling to the driver 

Move the logic for determining the `wchar_t` type information into the
driver.  Rather than passing the single bit of information of
`-fshort-wchar` indicate to the frontend the desired type of `wchar_t`
through a new `-cc1` option of `-fwchar-type` and indicate the
signedness through `-f{,no-}signed-wchar`.  This replicates the current
logic which was spread throughout Basic into the
`RenderCharacterOptions`.

Most of the changes to the tests are to ensure that the frontend uses
the correct type.  Add a new test set under `test/Driver/wchar_t.c` to
ensure that we calculate the proper types for the various cases.

llvm-svn: 315126
This commit is contained in:
Saleem Abdulrasool 2017-10-06 23:09:55 +00:00
parent d2f225fdef
commit 729379a1e1
28 changed files with 226 additions and 81 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

2
clang/include/clang/Basic/DiagnosticFrontendKinds.td
View File

@ -116,6 +116,8 @@ def err_fe_action_not_available : Error<
"action %0 not compiled in">;
def err_fe_invalid_alignment : Error<
"invalid value '%1' in '%0'; alignment must be a power of 2">;
def err_fe_invalid_wchar_type
: Error<"invalid wchar_t type '%0'; must be one of 'char', 'short', 'int'">;
def warn_fe_serialized_diag_merge_failure : Warning<
"unable to merge a subprocess's serialized diagnostics">,

3
clang/include/clang/Basic/LangOptions.def
View File

@ -175,7 +175,8 @@ BENIGN_LANGOPT(ObjCGCBitmapPrint , 1, 0, "printing of GC's bitmap layout for __w
BENIGN_LANGOPT(AccessControl , 1, 1, "C++ access control")
LANGOPT(CharIsSigned , 1, 1, "signed char")
LANGOPT(ShortWChar , 1, 0, "unsigned short wchar_t")
LANGOPT(WCharSize , 4, 0, "width of wchar_t")
LANGOPT(WCharIsSigned , 1, 0, "signed or unsigned wchar_t")
ENUM_LANGOPT(MSPointerToMemberRepresentationMethod, PragmaMSPointersToMembersKind, 2, PPTMK_BestCase, "member-pointer representation method")
ENUM_LANGOPT(DefaultCallingConv, DefaultCallingConvention, 3, DCC_None, "default calling convention")

6
clang/include/clang/Driver/CC1Options.td
View File

@ -709,6 +709,12 @@ def finclude_default_header : Flag<["-"], "finclude-default-header">,
HelpText<"Include the default header file for OpenCL">;
def fpreserve_vec3_type : Flag<["-"], "fpreserve-vec3-type">,
HelpText<"Preserve 3-component vector type">;
def fwchar_type_EQ : Joined<["-"], "fwchar-type=">,
HelpText<"Select underlying type for wchar_t">, Values<"char,short,int">;
def fsigned_wchar : Flag<["-"], "fsigned-wchar">,
HelpText<"Use a signed type for wchar_t">;
def fno_signed_wchar : Flag<["-"], "fno-signed-wchar">,
HelpText<"Use an unsigned type for wchar_t">;
// FIXME: Remove these entirely once functionality/tests have been excised.
def fobjc_gc_only : Flag<["-"], "fobjc-gc-only">, Group<f_Group>,

4
clang/include/clang/Driver/Options.td
View File

@ -1382,9 +1382,9 @@ def frtti : Flag<["-"], "frtti">, Group<f_Group>;
def : Flag<["-"], "fsched-interblock">, Group<clang_ignored_f_Group>;
def fshort_enums : Flag<["-"], "fshort-enums">, Group<f_Group>, Flags<[CC1Option]>,
HelpText<"Allocate to an enum type only as many bytes as it needs for the declared range of possible values">;
def fshort_wchar : Flag<["-"], "fshort-wchar">, Group<f_Group>, Flags<[CC1Option]>,
def fshort_wchar : Flag<["-"], "fshort-wchar">, Group<f_Group>,
HelpText<"Force wchar_t to be a short unsigned int">;
def fno_short_wchar : Flag<["-"], "fno-short-wchar">, Group<f_Group>, Flags<[CC1Option]>,
def fno_short_wchar : Flag<["-"], "fno-short-wchar">, Group<f_Group>,
HelpText<"Force wchar_t to be an unsigned int">;
def fshow_overloads_EQ : Joined<["-"], "fshow-overloads=">, Group<f_Group>, Flags<[CC1Option]>,
HelpText<"Which overload candidates to show when overload resolution fails: "

12
clang/lib/Basic/TargetInfo.cpp
View File

@ -19,6 +19,7 @@
#include "llvm/ADT/APFloat.h"
#include "llvm/ADT/STLExtras.h"
#include "llvm/Support/ErrorHandling.h"
#include "llvm/Support/TargetParser.h"
#include <cstdlib>
using namespace clang;
@ -290,8 +291,15 @@ bool TargetInfo::isTypeSigned(IntType T) {
void TargetInfo::adjust(LangOptions &Opts) {
if (Opts.NoBitFieldTypeAlign)
UseBitFieldTypeAlignment = false;
if (Opts.ShortWChar)
WCharType = UnsignedShort;
switch (Opts.WCharSize) {
default: llvm_unreachable("invalid wchar_t width");
case 0: break;
case 1: WCharType = Opts.WCharIsSigned ? SignedChar : UnsignedChar; break;
case 2: WCharType = Opts.WCharIsSigned ? SignedShort : UnsignedShort; break;
case 4: WCharType = Opts.WCharIsSigned ? SignedInt : UnsignedInt; break;
}
if (Opts.AlignDouble) {
DoubleAlign = LongLongAlign = 64;
LongDoubleAlign = 64;

13
clang/lib/Basic/Targets/AArch64.cpp
View File

@ -15,6 +15,7 @@
#include "clang/Basic/TargetBuiltins.h"
#include "clang/Basic/TargetInfo.h"
#include "llvm/ADT/ArrayRef.h"
#include "llvm/ADT/StringExtras.h"
using namespace clang;
using namespace clang::targets;
@ -34,18 +35,19 @@ AArch64TargetInfo::AArch64TargetInfo(const llvm::Triple &Triple,
: TargetInfo(Triple), ABI("aapcs") {
if (getTriple().getOS() == llvm::Triple::NetBSD ||
getTriple().getOS() == llvm::Triple::OpenBSD) {
WCharType = SignedInt;
// NetBSD apparently prefers consistency across ARM targets to
// consistency across 64-bit targets.
Int64Type = SignedLongLong;
IntMaxType = SignedLongLong;
} else {
WCharType = UnsignedInt;
if (!getTriple().isOSDarwin())
WCharType = UnsignedInt;
Int64Type = SignedLong;
IntMaxType = SignedLong;
}
LongWidth = LongAlign = PointerWidth = PointerAlign = 64;
MaxVectorAlign = 128;
MaxAtomicInlineWidth = 128;
@ -154,7 +156,8 @@ void AArch64TargetInfo::getTargetDefines(const LangOptions &Opts,
if (Opts.UnsafeFPMath)
Builder.defineMacro("__ARM_FP_FAST", "1");
Builder.defineMacro("__ARM_SIZEOF_WCHAR_T", Opts.ShortWChar ? "2" : "4");
Builder.defineMacro("__ARM_SIZEOF_WCHAR_T",
llvm::utostr(Opts.WCharSize ? Opts.WCharSize : 4));
Builder.defineMacro("__ARM_SIZEOF_MINIMAL_ENUM", Opts.ShortEnums ? "1" : "4");
@ -420,7 +423,6 @@ WindowsARM64TargetInfo::WindowsARM64TargetInfo(const llvm::Triple &Triple,
// This is an LLP64 platform.
// int:4, long:4, long long:8, long double:8.
WCharType = UnsignedShort;
IntWidth = IntAlign = 32;
LongWidth = LongAlign = 32;
DoubleAlign = LongLongAlign = 64;
@ -502,7 +504,6 @@ DarwinAArch64TargetInfo::DarwinAArch64TargetInfo(const llvm::Triple &Triple,
const TargetOptions &Opts)
: DarwinTargetInfo<AArch64leTargetInfo>(Triple, Opts) {
Int64Type = SignedLongLong;
WCharType = SignedInt;
UseSignedCharForObjCBool = false;
LongDoubleWidth = LongDoubleAlign = SuitableAlign = 64;

23
clang/lib/Basic/Targets/ARM.cpp
View File

@ -36,20 +36,10 @@ void ARMTargetInfo::setABIAAPCS() {
else
SizeType = UnsignedInt;
switch (T.getOS()) {
case llvm::Triple::NetBSD:
case llvm::Triple::OpenBSD:
WCharType = SignedInt;
break;
case llvm::Triple::Win32:
WCharType = UnsignedShort;
break;
case llvm::Triple::Linux:
default:
// AAPCS 7.1.1, ARM-Linux ABI 2.4: type of wchar_t is unsigned int.
bool IsNetBSD = T.getOS() == llvm::Triple::NetBSD;
bool IsOpenBSD = T.getOS() == llvm::Triple::OpenBSD;
if (!T.isOSWindows() && !IsNetBSD && !IsOpenBSD)
WCharType = UnsignedInt;
break;
}
UseBitFieldTypeAlignment = true;
@ -99,7 +89,6 @@ void ARMTargetInfo::setABIAPCS(bool IsAAPCS16) {
else
SizeType = UnsignedLong;
// Revert to using SignedInt on apcs-gnu to comply with existing behaviour.
WCharType = SignedInt;
// Do not respect the alignment of bit-field types when laying out
@ -689,7 +678,8 @@ void ARMTargetInfo::getTargetDefines(const LangOptions &Opts,
"0x" + llvm::utohexstr(HW_FP & ~HW_FP_DP));
}
Builder.defineMacro("__ARM_SIZEOF_WCHAR_T", Opts.ShortWChar ? "2" : "4");
Builder.defineMacro("__ARM_SIZEOF_WCHAR_T",
llvm::utostr(Opts.WCharSize ? Opts.WCharSize : 4));
Builder.defineMacro("__ARM_SIZEOF_MINIMAL_ENUM", Opts.ShortEnums ? "1" : "4");
@ -932,7 +922,6 @@ void ARMbeTargetInfo::getTargetDefines(const LangOptions &Opts,
WindowsARMTargetInfo::WindowsARMTargetInfo(const llvm::Triple &Triple,
const TargetOptions &Opts)
: WindowsTargetInfo<ARMleTargetInfo>(Triple, Opts), Triple(Triple) {
WCharType = UnsignedShort;
SizeType = UnsignedInt;
}
@ -1023,8 +1012,8 @@ void MinGWARMTargetInfo::getTargetDefines(const LangOptions &Opts,
CygwinARMTargetInfo::CygwinARMTargetInfo(const llvm::Triple &Triple,
const TargetOptions &Opts)
: ARMleTargetInfo(Triple, Opts) {
this->WCharType = TargetInfo::UnsignedShort;
TLSSupported = false;
WCharType = UnsignedShort;
DoubleAlign = LongLongAlign = 64;
resetDataLayout("e-m:e-p:32:32-i64:64-v128:64:128-a:0:32-n32-S64");
}

1
clang/lib/Basic/Targets/AVR.h
View File

@ -52,7 +52,6 @@ public:
PtrDiffType = SignedInt;
IntPtrType = SignedInt;
Char16Type = UnsignedInt;
WCharType = SignedInt;
WIntType = SignedInt;
Char32Type = UnsignedLong;
SigAtomicType = SignedChar;

7
clang/lib/Basic/Targets/OSTargets.h
View File

@ -477,7 +477,7 @@ protected:
public:
PS4OSTargetInfo(const llvm::Triple &Triple, const TargetOptions &Opts)
: OSTargetInfo<Target>(Triple, Opts) {
this->WCharType = this->UnsignedShort;
this->WCharType = TargetInfo::UnsignedShort;
// On PS4, TLS variable cannot be aligned to more than 32 bytes (256 bits).
this->MaxTLSAlign = 256;
@ -561,7 +561,6 @@ protected:
public:
SolarisTargetInfo(const llvm::Triple &Triple, const TargetOptions &Opts)
: OSTargetInfo<Target>(Triple, Opts) {
this->WCharType = this->SignedInt;
// FIXME: WIntType should be SignedLong
}
};
@ -628,7 +627,9 @@ protected:
public:
WindowsTargetInfo(const llvm::Triple &Triple, const TargetOptions &Opts)
: OSTargetInfo<Target>(Triple, Opts) {}
: OSTargetInfo<Target>(Triple, Opts) {
this->WCharType = TargetInfo::UnsignedShort;
}
};
template <typename Target>

6
clang/lib/Basic/Targets/X86.h
View File

@ -639,7 +639,6 @@ class LLVM_LIBRARY_VISIBILITY WindowsX86_32TargetInfo
public:
WindowsX86_32TargetInfo(const llvm::Triple &Triple, const TargetOptions &Opts)
: WindowsTargetInfo<X86_32TargetInfo>(Triple, Opts) {
WCharType = UnsignedShort;
DoubleAlign = LongLongAlign = 64;
bool IsWinCOFF =
getTriple().isOSWindows() && getTriple().isOSBinFormatCOFF();
@ -700,7 +699,7 @@ class LLVM_LIBRARY_VISIBILITY CygwinX86_32TargetInfo : public X86_32TargetInfo {
public:
CygwinX86_32TargetInfo(const llvm::Triple &Triple, const TargetOptions &Opts)
: X86_32TargetInfo(Triple, Opts) {
WCharType = UnsignedShort;
this->WCharType = TargetInfo::UnsignedShort;
DoubleAlign = LongLongAlign = 64;
resetDataLayout("e-m:x-p:32:32-i64:64-f80:32-n8:16:32-a:0:32-S32");
}
@ -886,7 +885,6 @@ class LLVM_LIBRARY_VISIBILITY WindowsX86_64TargetInfo
public:
WindowsX86_64TargetInfo(const llvm::Triple &Triple, const TargetOptions &Opts)
: WindowsTargetInfo<X86_64TargetInfo>(Triple, Opts) {
WCharType = UnsignedShort;
LongWidth = LongAlign = 32;
DoubleAlign = LongLongAlign = 64;
IntMaxType = SignedLongLong;
@ -979,8 +977,8 @@ class LLVM_LIBRARY_VISIBILITY CygwinX86_64TargetInfo : public X86_64TargetInfo {
public:
CygwinX86_64TargetInfo(const llvm::Triple &Triple, const TargetOptions &Opts)
: X86_64TargetInfo(Triple, Opts) {
this->WCharType = TargetInfo::UnsignedShort;
TLSSupported = false;
WCharType = UnsignedShort;
}
void getTargetDefines(const LangOptions &Opts,

49
clang/lib/Driver/ToolChains/Clang.cpp
View File

@ -2601,6 +2601,33 @@ static void RenderModulesOptions(Compilation &C, const Driver &D,
Args.AddLastArg(CmdArgs, options::OPT_fmodules_disable_diagnostic_validation);
}
static void RenderCharacterOptions(const ArgList &Args, const llvm::Triple &T,
ArgStringList &CmdArgs) {
// -fsigned-char is default.
if (const Arg *A = Args.getLastArg(options::OPT_fsigned_char,
options::OPT_fno_signed_char,
options::OPT_funsigned_char,
options::OPT_fno_unsigned_char)) {
if (A->getOption().matches(options::OPT_funsigned_char) ||
A->getOption().matches(options::OPT_fno_signed_char)) {
CmdArgs.push_back("-fno-signed-char");
}
} else if (!isSignedCharDefault(T)) {
CmdArgs.push_back("-fno-signed-char");
}
if (const Arg *A = Args.getLastArg(options::OPT_fshort_wchar,
options::OPT_fno_short_wchar)) {
if (A->getOption().matches(options::OPT_fshort_wchar)) {
CmdArgs.push_back("-fwchar-type=short");
CmdArgs.push_back("-fno-signed-wchar");
} else {
CmdArgs.push_back("-fwchar-type=int");
CmdArgs.push_back("-fsigned-wchar");
}
}
}
static void RenderObjCOptions(const ToolChain &TC, const Driver &D,
const llvm::Triple &T, const ArgList &Args,
ObjCRuntime &Runtime, bool InferCovariantReturns,
@ -2991,6 +3018,9 @@ void Clang::ConstructJob(Compilation &C, const JobAction &JA,
Inputs.size() == 1) &&
"Unable to handle multiple inputs.");
const llvm::Triple *AuxTriple =
IsCuda ? getToolChain().getAuxTriple() : nullptr;
bool IsWindowsGNU = RawTriple.isWindowsGNUEnvironment();
bool IsWindowsCygnus = RawTriple.isWindowsCygwinEnvironment();
bool IsWindowsMSVC = RawTriple.isWindowsMSVCEnvironment();
@ -3000,7 +3030,6 @@ void Clang::ConstructJob(Compilation &C, const JobAction &JA,
// mode (i.e., getToolchain().getTriple() is NVPTX, not Windows), we need to
// pass Windows-specific flags to cc1.
if (IsCuda) {
const llvm::Triple *AuxTriple = getToolChain().getAuxTriple();
IsWindowsMSVC |= AuxTriple && AuxTriple->isWindowsMSVCEnvironment();
IsWindowsGNU |= AuxTriple && AuxTriple->isWindowsGNUEnvironment();
IsWindowsCygnus |= AuxTriple && AuxTriple->isWindowsCygwinEnvironment();
@ -4003,17 +4032,7 @@ void Clang::ConstructJob(Compilation &C, const JobAction &JA,
getToolChain().getArch() == llvm::Triple::hexagon))
CmdArgs.push_back("-fshort-enums");
// -fsigned-char is default.
if (Arg *A = Args.getLastArg(
options::OPT_fsigned_char, options::OPT_fno_signed_char,
options::OPT_funsigned_char, options::OPT_fno_unsigned_char)) {
if (A->getOption().matches(options::OPT_funsigned_char) ||
A->getOption().matches(options::OPT_fno_signed_char)) {
CmdArgs.push_back("-fno-signed-char");
}
} else if (!isSignedCharDefault(RawTriple)) {
CmdArgs.push_back("-fno-signed-char");
}
RenderCharacterOptions(Args, AuxTriple ? *AuxTriple : RawTriple, CmdArgs);
// -fuse-cxa-atexit is default.
if (!Args.hasFlag(
@ -4182,12 +4201,6 @@ void Clang::ConstructJob(Compilation &C, const JobAction &JA,
options::OPT_mno_constant_cfstrings))
CmdArgs.push_back("-fno-constant-cfstrings");
// -fshort-wchar default varies depending on platform; only
// pass if specified.
if (Arg *A = Args.getLastArg(options::OPT_fshort_wchar,
options::OPT_fno_short_wchar))
A->render(Args, CmdArgs);
// -fno-pascal-strings is default, only pass non-default.
if (Args.hasFlag(options::OPT_fpascal_strings,
options::OPT_fno_pascal_strings, false))

1
clang/lib/Frontend/CompilerInstance.cpp
View File

@ -386,6 +386,7 @@ void CompilerInstance::createPreprocessor(TranslationUnitKind TUKind) {
Invocation->getPreprocessorOptsPtr(), getDiagnostics(), getLangOpts(),
getSourceManager(), getPCMCache(), *HeaderInfo, *this, PTHMgr,
/*OwnsHeaderSearch=*/true, TUKind);
getTarget().adjust(getLangOpts());
PP->Initialize(getTarget(), getAuxTarget());
// Note that this is different then passing PTHMgr to Preprocessor's ctor.

11
clang/lib/Frontend/CompilerInvocation.cpp
View File

@ -2154,7 +2154,16 @@ static void ParseLangArgs(LangOptions &Opts, ArgList &Args, InputKind IK,
Opts.ImplicitModules = !Args.hasArg(OPT_fno_implicit_modules);
Opts.CharIsSigned = Opts.OpenCL || !Args.hasArg(OPT_fno_signed_char);
Opts.WChar = Opts.CPlusPlus && !Args.hasArg(OPT_fno_wchar);
Opts.ShortWChar = Args.hasFlag(OPT_fshort_wchar, OPT_fno_short_wchar, false);
if (const Arg *A = Args.getLastArg(OPT_fwchar_type_EQ)) {
Opts.WCharSize = llvm::StringSwitch<unsigned>(A->getValue())
.Case("char", 1)
.Case("short", 2)
.Case("int", 4)
.Default(0);
if (Opts.WCharSize == 0)
Diags.Report(diag::err_fe_invalid_wchar_type) << A->getValue();
}
Opts.WCharIsSigned = Args.hasFlag(OPT_fsigned_wchar, OPT_fno_signed_wchar, true);
Opts.ShortEnums = Args.hasArg(OPT_fshort_enums);
Opts.Freestanding = Args.hasArg(OPT_ffreestanding);
Opts.NoBuiltin = Args.hasArg(OPT_fno_builtin) || Opts.Freestanding;

2
clang/test/CXX/conv/conv.prom/p2.cpp
View File

@ -1,5 +1,5 @@
// RUN: %clang_cc1 -fsyntax-only -verify -std=c++0x -triple x86_64-pc-linux-gnu -ffreestanding %s
// RUN: %clang_cc1 -fsyntax-only -verify -std=c++0x -triple x86_64-pc-linux-gnu -ffreestanding -fshort-wchar %s
// RUN: %clang_cc1 -fsyntax-only -verify -std=c++0x -triple x86_64-pc-linux-gnu -ffreestanding -fwchar-type=short -fno-signed-wchar %s
// expected-no-diagnostics
#include <stdint.h>

2
clang/test/CodeGen/arm-metadata.c
View File

@ -1,6 +1,6 @@
// RUN: %clang_cc1 -triple armv7a-linux-gnueabi -emit-llvm -o - %s | FileCheck -check-prefix=DEFAULT %s
// RUN: %clang_cc1 -triple armv7a-linux-gnueabi -emit-llvm -o - %s -fshort-enums | FileCheck -check-prefix=SHORT-ENUM %s
// RUN: %clang_cc1 -triple armv7a-linux-gnueabi -emit-llvm -o - %s -fshort-wchar | FileCheck -check-prefix=SHORT-WCHAR %s
// RUN: %clang_cc1 -triple armv7a-linux-gnueabi -emit-llvm -o - %s -fwchar-type=short -fno-signed-wchar | FileCheck -check-prefix=SHORT-WCHAR %s
// DEFAULT: !{{[0-9]+}} = !{i32 1, !"wchar_size", i32 4}
// DEFAULT: !{{[0-9]+}} = !{i32 1, !"min_enum_size", i32 4}

2
clang/test/CodeGen/pascal-wchar-string.c
View File

@ -1,4 +1,4 @@
// RUN: %clang_cc1 -emit-llvm -o - %s -fpascal-strings -fshort-wchar | FileCheck %s
// RUN: %clang_cc1 -emit-llvm -o - %s -fpascal-strings -fwchar-type=short -fno-signed-wchar | FileCheck %s
// rdar://8020384
#include <stddef.h>

4
clang/test/CodeGen/string-literal-short-wstring.c
View File

@ -1,5 +1,5 @@
// RUN: %clang_cc1 -x c++ -triple %itanium_abi_triple -emit-llvm -fshort-wchar %s -o - | FileCheck %s --check-prefix=CHECK --check-prefix=ITANIUM
// RUN: %clang_cc1 -x c++ -triple %ms_abi_triple -emit-llvm -fshort-wchar %s -o - | FileCheck %s --check-prefix=CHECK --check-prefix=MSABI
// RUN: %clang_cc1 -x c++ -triple %itanium_abi_triple -emit-llvm -fwchar-type=short -fno-signed-wchar %s -o - | FileCheck %s --check-prefix=CHECK --check-prefix=ITANIUM
// RUN: %clang_cc1 -x c++ -triple %ms_abi_triple -emit-llvm -fwchar-type=short -fno-signed-wchar %s -o - | FileCheck %s --check-prefix=CHECK --check-prefix=MSABI
// Runs in c++ mode so that wchar_t is available.
// XFAIL: hexagon

2
clang/test/CodeGen/string-literal-unicode-conversion.c
View File

@ -1,6 +1,6 @@
// RUN: %clang_cc1 -triple i386-unknown-unknown -emit-llvm %s -o - | FileCheck -check-prefix=CHECK-C %s
// RUN: %clang_cc1 -x c++ -std=c++0x -triple i386-unknown-unknown -emit-llvm %s -o - | FileCheck -check-prefix=CHECK-CPP0X %s
// RUN: %clang_cc1 -x c++ -std=c++0x -fshort-wchar -triple i386-unknown-unknown -emit-llvm %s -o - | FileCheck -check-prefix=CHECK-SHORTWCHAR %s
// RUN: %clang_cc1 -x c++ -std=c++0x -fwchar-type=short -fno-signed-wchar -triple i386-unknown-unknown -emit-llvm %s -o - | FileCheck -check-prefix=CHECK-SHORTWCHAR %s
// This file contains a mix of ISO-8859-1 and UTF-8 encoded data.
// the literal assigned to 'aa' should be the ISO-8859-1 encoding for the code

2
clang/test/CodeGen/wchar-size.c
View File

@ -1,6 +1,6 @@
// RUN: %clang_cc1 -triple x86_64-unknown-linux-gnu -emit-llvm -o - %s | FileCheck %s -check-prefix=LONG-WCHAR
// RUN: %clang_cc1 -triple x86_64-unknown-windows-msvc -emit-llvm -o - %s | FileCheck %s -check-prefix=SHORT-WCHAR
// RUN: %clang_cc1 -triple x86_64-unknown-linux-gnu -emit-llvm -o - -fshort-wchar %s | FileCheck %s -check-prefix=SHORT-WCHAR
// RUN: %clang_cc1 -triple x86_64-unknown-linux-gnu -emit-llvm -o - -fwchar-type=short -fno-signed-wchar %s | FileCheck %s -check-prefix=SHORT-WCHAR
// Note: -fno-short-wchar implies the target default is used; so there is no
// need to test this separately here.

20
clang/test/Driver/clang_f_opts.c
View File

@ -1,7 +1,7 @@
// REQUIRES: clang-driver
// RUN: %clang -### -S -fasm -fblocks -fbuiltin -fno-math-errno -fcommon -fpascal-strings -fno-blocks -fno-builtin -fmath-errno -fno-common -fno-pascal-strings -fblocks -fbuiltin -fmath-errno -fcommon -fpascal-strings -fsplit-stack %s 2>&1 | FileCheck -check-prefix=CHECK-OPTIONS1 %s
// RUN: %clang -### -S -fasm -fblocks -fbuiltin -fno-math-errno -fcommon -fpascal-strings -fno-asm -fno-blocks -fno-builtin -fmath-errno -fno-common -fno-pascal-strings -fno-show-source-location -fshort-enums -fshort-wchar %s 2>&1 | FileCheck -check-prefix=CHECK-OPTIONS2 %s
// RUN: %clang -### -S -fasm -fblocks -fbuiltin -fno-math-errno -fcommon -fpascal-strings -fno-asm -fno-blocks -fno-builtin -fmath-errno -fno-common -fno-pascal-strings -fno-show-source-location -fshort-enums %s 2>&1 | FileCheck -check-prefix=CHECK-OPTIONS2 %s
// CHECK-OPTIONS1: -split-stacks
// CHECK-OPTIONS1: -fgnu-keywords
@ -12,7 +12,6 @@
// CHECK-OPTIONS2: -fno-gnu-keywords
// CHECK-OPTIONS2: -fno-builtin
// CHECK-OPTIONS2: -fshort-enums
// CHECK-OPTIONS2: -fshort-wchar
// CHECK-OPTIONS2: -fno-common
// CHECK-OPTIONS2: -fno-show-source-location
@ -466,15 +465,15 @@
// RUN: %clang -### -S -fno-unsigned-char %s 2>&1 | FileCheck -check-prefix=CHAR-SIGN4 %s
// CHAR-SIGN4-NOT: -fno-signed-char
// RUN: %clang -### -fshort-wchar -fno-short-wchar %s 2>&1 | FileCheck -check-prefix=CHECK-WCHAR1 -check-prefix=DELIMITERS %s
// RUN: %clang -### -fno-short-wchar -fshort-wchar %s 2>&1 | FileCheck -check-prefix=CHECK-WCHAR2 -check-prefix=DELIMITERS %s
// RUN: %clang -target x86_64-unknown-none-none -### -fshort-wchar -fno-short-wchar %s 2>&1 | FileCheck -check-prefix=CHECK-WCHAR1 -check-prefix=DELIMITERS %s
// RUN: %clang -target x86_64-unknown-none-none -### -fno-short-wchar -fshort-wchar %s 2>&1 | FileCheck -check-prefix=CHECK-WCHAR2 -check-prefix=DELIMITERS %s
// Make sure we don't match the -NOT lines with the linker invocation.
// Delimiters match the start of the cc1 and the start of the linker lines
// DELIMITERS: {{^ *"}}
// CHECK-WCHAR1: -fno-short-wchar
// CHECK-WCHAR1-NOT: -fshort-wchar
// CHECK-WCHAR2: -fshort-wchar
// CHECK-WCHAR2-NOT: -fno-short-wchar
// CHECK-WCHAR1: -fwchar-type=int
// CHECK-WCHAR1-NOT: -fwchar-type=short
// CHECK-WCHAR2: -fwchar-type=short
// CHECK-WCHAR2-NOT: -fwchar-type=int
// DELIMITERS: {{^ *"}}
// RUN: %clang -### -fno-experimental-new-pass-manager -fexperimental-new-pass-manager %s 2>&1 | FileCheck --check-prefix=CHECK-PM --check-prefix=CHECK-NEW-PM %s
@ -499,3 +498,8 @@
// RUN: %clang -### -S -fno-allow-editor-placeholders %s 2>&1 | FileCheck -check-prefix=CHECK-NO-ALLOW-PLACEHOLDERS %s
// CHECK-ALLOW-PLACEHOLDERS: -fallow-editor-placeholders
// CHECK-NO-ALLOW-PLACEHOLDERS-NOT: -fallow-editor-placeholders
// RUN: %clang -### -target x86_64-unknown-windows-msvc -fno-short-wchar %s 2>&1 | FileCheck -check-prefix CHECK-WINDOWS-ISO10646 %s
// CHECK-WINDOWS-ISO10646: "-fwchar-type=int"
// CHECK-WINDOWS-ISO10646: "-fsigned-wchar"

2
clang/test/Headers/wchar_limits.cpp
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@ -1,5 +1,5 @@
// RUN: %clang_cc1 -ffreestanding -fsyntax-only -verify %s
// RUN: %clang_cc1 -ffreestanding -fsyntax-only -verify -fshort-wchar %s
// RUN: %clang_cc1 -ffreestanding -fsyntax-only -verify -fwchar-type=short -fno-signed-wchar %s
// expected-no-diagnostics
#include <stdint.h>

2
clang/test/Index/index-pch.cpp
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@ -1,4 +1,4 @@
// RUN: c-index-test -write-pch %t.pch -fshort-wchar %s
// RUN: c-index-test -write-pch %t.pch -fwchar-type=short -fno-signed-wchar %s
// RUN: env LIBCLANG_NOTHREADS=1 c-index-test -index-tu %t.pch | FileCheck %s
// CHECK: [indexDeclaration]: kind: variable | name: wideStr

2
clang/test/Lexer/wchar.c
View File

@ -1,4 +1,4 @@
// RUN: %clang_cc1 -fsyntax-only -fshort-wchar -verify %s
// RUN: %clang_cc1 -fsyntax-only -fwchar-type=short -fno-signed-wchar -verify %s
void f() {
(void)L"\U00010000"; // unicode escape produces UTF-16 sequence, so no warning

10
clang/test/Preprocessor/init.c
View File

@ -253,18 +253,18 @@
// SCHAR-NOT:#define __UNSIGNED_CHAR__
// SCHAR:#define __clang__ 1
//
// RUN: %clang_cc1 -E -dM -fshort-wchar < /dev/null | FileCheck -match-full-lines -check-prefix SHORTWCHAR %s
// RUN: %clang_cc1 -E -dM -fwchar-type=short -fno-signed-wchar < /dev/null | FileCheck -match-full-lines -check-prefix SHORTWCHAR %s
// wchar_t is u16 for targeting Win32.
// FIXME: Implement and check x86_64-cygwin.
// RUN: %clang_cc1 -E -dM -fno-short-wchar -triple=x86_64-w64-mingw32 < /dev/null | FileCheck -match-full-lines -check-prefix SHORTWCHAR %s
// RUN: %clang_cc1 -E -dM -fwchar-type=short -fno-signed-wchar -triple=x86_64-w64-mingw32 < /dev/null | FileCheck -match-full-lines -check-prefix SHORTWCHAR %s
// RUN: %clang_cc1 -dM -fwchar-type=short -fno-signed-wchar -triple=x86_64-unknown-windows-cygnus -E /dev/null | FileCheck -match-full-lines -check-prefix SHORTWCHAR %s
//
// SHORTWCHAR: #define __SIZEOF_WCHAR_T__ 2
// SHORTWCHAR: #define __WCHAR_MAX__ 65535
// SHORTWCHAR: #define __WCHAR_TYPE__ unsigned short
// SHORTWCHAR: #define __WCHAR_WIDTH__ 16
//
// RUN: %clang_cc1 -E -dM -fno-short-wchar -triple=i686-unknown-unknown < /dev/null | FileCheck -match-full-lines -check-prefix SHORTWCHAR2 %s
// RUN: %clang_cc1 -E -dM -fno-short-wchar -triple=x86_64-unknown-unknown < /dev/null | FileCheck -match-full-lines -check-prefix SHORTWCHAR2 %s
// RUN: %clang_cc1 -E -dM -fwchar-type=int -triple=i686-unknown-unknown < /dev/null | FileCheck -match-full-lines -check-prefix SHORTWCHAR2 %s
// RUN: %clang_cc1 -E -dM -fwchar-type=int -triple=x86_64-unknown-unknown < /dev/null | FileCheck -match-full-lines -check-prefix SHORTWCHAR2 %s
//
// SHORTWCHAR2: #define __SIZEOF_WCHAR_T__ 4
// SHORTWCHAR2: #define __WCHAR_WIDTH__ 32

2
clang/test/Preprocessor/pr19649-unsigned-wchar_t.c
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@ -1,5 +1,5 @@
// RUN: %clang_cc1 -triple i386-pc-cygwin -E -x c %s
// RUN: %clang_cc1 -triple powerpc64-unknown-linux-gnu -E -fshort-wchar -x c %s
// RUN: %clang_cc1 -triple powerpc64-unknown-linux-gnu -E -fwchar-type=short -fno-signed-wchar -x c %s
#if (L'\0' - 1 < 0)
# error "Unexpected expression evaluation result"

113
clang/test/Preprocessor/wchar_t.c Normal file
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@ -0,0 +1,113 @@
// RUN: %clang_cc1 -triple i386-pc-solaris -dM -E %s -o - | FileCheck %s -check-prefix CHECK-SOLARIS
// CHECK-SOLARIS-DAG: #define __WCHAR_MAX__ 2147483647
// CHECK-SOLARIS-DAG: #define __WCHAR_TYPE__ int
// CHECK-SOLARIS-NOT: #define __WCHAR_UNSIGNED__ 0
// RUN: %clang_cc1 -triple avr-unknown-unknown -fwchar-type=int -fsigned-wchar -dM -E %s -o - | FileCheck %s -check-prefix CHECK-AVR
// CHECK-AVR-DAG: #define __WCHAR_MAX__ 32767
// CHECK-AVR-DAG: #define __WCHAR_TYPE__ int
// CHECK-AVR-NOT: #define __WCHAR_UNSIGNED__ 0
// RUN: %clang_cc1 -triple arm-unknown-none-gnu -fsigned-wchar -dM -E %s -o - | FileCheck %s -check-prefix CHECK-ARM-APCS
// CHECK-ARM-APCS-DAG: #define __WCHAR_MAX__ 2147483647
// CHECK-ARM-APCS-DAG: #define __WCHAR_TYPE__ int
// CHECK-ARM-APCS-NOT: #define __WCHAR_UNSIGNED__ 0
// RUN: %clang_cc1 -triple arm-unknown-netbsd-gnu -fsigned-wchar -dM -E %s -o - | FileCheck %s -check-prefix CHECK-ARM-NETBSD-AAPCS
// CHECK-ARM-NETBSD-AAPCS-DAG: #define __WCHAR_MAX__ 2147483647
// CHECK-ARM-NETBSD-AAPCS-DAG: #define __WCHAR_TYPE__ int
// CHECK-ARM-NETBSD-AAPCS-NOT: #define __WCHAR_UNSIGNED__ 0
// RUN: %clang_cc1 -triple arm-unknown-openbsd -fsigned-wchar -dM -E %s -o - | FileCheck %s -check-prefix CHECK-ARM-OPENBSD
// CHECK-ARM-OPENBSD-DAG: #define __WCHAR_MAX__ 2147483647
// CHECK-ARM-OPENBSD-DAG: #define __WCHAR_TYPE__ int
// CHECK-ARM-OPENBSD-NOT: #define __WCHAR_UNSIGNED__ 0
// RUN: %clang_cc1 -triple arm64-apple-ios -fsigned-wchar -dM -E %s -o - | FileCheck %s -check-prefix CHECK-ARM64-DARWIN
// CHECK-ARM64-DARWIN-DAG: #define __WCHAR_MAX__ 2147483647
// CHECK-ARM64-DARWIN-DAG: #define __WCHAR_TYPE__ int
// CHECK-ARM64-DARWIN-NOT: #define __WCHAR_UNSIGNED__ 0
// RUN: %clang_cc1 -triple aarch64-unknown-netbsd -fsigned-wchar -dM -E %s -o - | FileCheck %s -check-prefix CHECK-ARM64-NETBSD
// CHECK-ARM64-NETBSD-DAG: #define __WCHAR_MAX__ 2147483647
// CHECK-ARM64-NETBSD-DAG: #define __WCHAR_TYPE__ int
// CHECK-ARM64-NETBSD-NOT: #define __WCHAR_UNSIGNED__ 0
// RUN: %clang_cc1 -triple aarch64-unknown-openbsd -fsigned-wchar -dM -E %s -o - | FileCheck %s -check-prefix CHECK-ARM64-OPENBSD
// CHECK-ARM64-OPENBSD-DAG: #define __WCHAR_MAX__ 2147483647
// CHECK-ARM64-OPENBSD-DAG: #define __WCHAR_TYPE__ int
// CHECK-ARM64-OPENBSD-NOT: #define __WCHAR_UNSIGNED__ 0
// RUN: %clang_cc1 -triple aarch64-unknown-none -fwchar-type=int -fno-signed-wchar -dM -E %s -o - | FileCheck %s -check-prefix CHECK-ARM64-AAPCS64
// CHECK-ARM64-AAPCS64-DAG: #define __WCHAR_MAX__ 4294967295U
// CHECK-ARM64-AAPCS64-DAG: #define __WCHAR_TYPE__ unsigned int
// CHECK-ARM64-AAPCS64-DAG: #define __WCHAR_UNSIGNED__ 1
// RUN: %clang_cc1 -triple xcore-unknown-unknown -fwchar-type=char -fno-signed-wchar -dM -E %s -o - | FileCheck %s -check-prefix CHECK-XCORE
// CHECK-XCORE-DAG: #define __WCHAR_MAX__ 255
// CHECK-XCORE-DAG: #define __WCHAR_TYPE__ unsigned char
// CHECK-XCORE-DAG: #define __WCHAR_UNSIGNED__ 1
// RUN: %clang_cc1 -triple x86_64-unknown-windows-cygnus -fwchar-type=short -fno-signed-wchar -dM -E %s -o - | FileCheck %s -check-prefix CHECK-CYGWIN-X64
// CHECK-CYGWIN-X64-DAG: #define __WCHAR_MAX__ 65535
// CHECK-CYGWIN-X64-DAG: #define __WCHAR_TYPE__ unsigned short
// CHECK-CYGWIN-X64-DAG: #define __WCHAR_UNSIGNED__ 1
// RUN: %clang_cc1 -triple x86_64-unknown-windows-msvc -fwchar-type=short -fno-signed-wchar -dM -E %s -o - | FileCheck %s -check-prefix CHECK-MSVC-X64
// CHECK-MSVC-X64-DAG: #define __WCHAR_MAX__ 65535
// CHECK-MSVC-X64-DAG: #define __WCHAR_TYPE__ unsigned short
// CHECK-MSVC-X64-DAG: #define __WCHAR_UNSIGNED__ 1
// RUN: %clang_cc1 -triple i686-unknown-windows-cygnus -fwchar-type=short -fno-signed-wchar -dM -E %s -o - | FileCheck %s -check-prefix CHECK-CYGWIN-X86
// CHECK-CYGWIN-X86-DAG: #define __WCHAR_MAX__ 65535
// CHECK-CYGWIN-X86-DAG: #define __WCHAR_TYPE__ unsigned short
// CHECK-CYGWIN-X86-DAG: #define __WCHAR_UNSIGNED__ 1
// RUN: %clang_cc1 -triple i686-unknown-windows-msvc -fwchar-type=short -fno-signed-wchar -dM -E %s -o - | FileCheck %s -check-prefix CHECK-MSVC-X86
// CHECK-MSVC-X86-DAG: #define __WCHAR_MAX__ 65535
// CHECK-MSVC-X86-DAG: #define __WCHAR_TYPE__ unsigned short
// CHECK-MSVC-X86-DAG: #define __WCHAR_UNSIGNED__ 1
// RUN: %clang_cc1 -triple x86_64-scei-ps4 -fwchar-type=short -fno-signed-wchar -dM -E %s -o - | FileCheck %s -check-prefix CHECK-PS4
// CHECK-PS4-DAG: #define __WCHAR_MAX__ 65535
// CHECK-PS4-DAG: #define __WCHAR_TYPE__ unsigned short
// CHECK-PS4-DAG: #define __WCHAR_UNSIGNED__ 1
// RUN: %clang_cc1 -triple thumbv7-unknown-windows-cygnus -fwchar-type=short -fno-signed-wchar -dM -E %s -o - | FileCheck %s -check-prefix CHECK-CYGWIN-ARM
// CHECK-CYGWIN-ARM-DAG: #define __WCHAR_MAX__ 65535
// CHECK-CYGWIN-ARM-DAG: #define __WCHAR_TYPE__ unsigned short
// CHECK-CYGWIN-ARM-DAG: #define __WCHAR_UNSIGNED__ 1
// RUN: %clang_cc1 -triple thumbv7-unknown-windows-msvc -fwchar-type=short -fno-signed-wchar -dM -E %s -o - | FileCheck %s -check-prefix CHECK-MSVC-ARM
// CHECK-MSVC-ARM-DAG: #define __WCHAR_MAX__ 65535
// CHECK-MSVC-ARM-DAG: #define __WCHAR_TYPE__ unsigned short
// CHECK-MSVC-ARM-DAG: #define __WCHAR_UNSIGNED__ 1
// RUN: %clang_cc1 -triple aarch64-unknown-windows-msvc -fwchar-type=short -fno-signed-wchar -dM -E %s -o - | FileCheck %s -check-prefix CHECK-MSVC-ARM64
// CHECK-MSVC-ARM64-DAG: #define __WCHAR_MAX__ 65535
// CHECK-MSVC-ARM64-DAG: #define __WCHAR_TYPE__ unsigned short
// CHECK-MSVC-ARM64-DAG: #define __WCHAR_UNSIGNED__ 1
// RUN: %clang_cc1 -triple i386-apple-macosx -dM -E %s -o - | FileCheck %s -check-prefix CHECK-DARWIN
// RUN: %clang_cc1 -triple x86_64-apple-macosx -dM -E %s -o - | FileCheck %s -check-prefix CHECK-DARWIN
// RUN: %clang_cc1 -triple ppc64-apple-macosx -dM -E %s -o - | FileCheck %s -check-prefix CHECK-DARWIN
// RUN: %clang_cc1 -triple i386-apple-ios -dM -E %s -o - | FileCheck %s -check-prefix CHECK-DARWIN
// RUN: %clang_cc1 -triple x86_64-apple-ios -dM -E %s -o - | FileCheck %s -check-prefix CHECK-DARWIN
// RUN: %clang_cc1 -triple armv7-apple-ios -dM -E %s -o - | FileCheck %s -check-prefix CHECK-DARWIN
// RUN: %clang_cc1 -triple aarch64-apple-ios -dM -E %s -o - | FileCheck %s -check-prefix CHECK-DARWIN
// RUN: %clang_cc1 -triple i386-apple-tvos -dM -E %s -o - | FileCheck %s -check-prefix CHECK-DARWIN
// RUN: %clang_cc1 -triple x86_64-apple-tvos -dM -E %s -o - | FileCheck %s -check-prefix CHECK-DARWIN
// RUN: %clang_cc1 -triple armv7-apple-tvos -dM -E %s -o - | FileCheck %s -check-prefix CHECK-DARWIN
// RUN: %clang_cc1 -triple aarch64-apple-tvos -dM -E %s -o - | FileCheck %s -check-prefix CHECK-DARWIN
// RUN: %clang_cc1 -triple i386-apple-watchos -dM -E %s -o - | FileCheck %s -check-prefix CHECK-DARWIN
// RUN: %clang_cc1 -triple x86_64-apple-watchos -dM -E %s -o - | FileCheck %s -check-prefix CHECK-DARWIN
// RUN: %clang_cc1 -triple armv7-apple-watchos -dM -E %s -o - | FileCheck %s -check-prefix CHECK-DARWIN
// RUN: %clang_cc1 -triple aarch64-apple-watchos -dM -E %s -o - | FileCheck %s -check-prefix CHECK-DARWIN
// CHECK-DARWIN: #define __WCHAR_TYPE__ int
// RUN: %clang_cc1 -triple i686-unknown-windows-msvc -fwchar-type=int -fsigned-wchar -dM -E %s -o - | FileCheck %s -check-prefix CHECK-WINDOWS-ISO10646
// RUN: %clang_cc1 -triple x86_64-unknown-windows-msvc -fwchar-type=int -fsigned-wchar -dM -E %s -o - | FileCheck %s -check-prefix CHECK-WINDOWS-ISO10646
// RUN: %clang_cc1 -triple thumbv7-unknown-windows-msvc -fwchar-type=int -fsigned-wchar -dM -E %s -o - | FileCheck %s -check-prefix CHECK-WINDOWS-ISO10646
// RUN: %clang_cc1 -triple aarch64-unknown-windows-msvc -fwchar-type=int -fsigned-wchar -dM -E %s -o - | FileCheck %s -check-prefix CHECK-WINDOWS-ISO10646
// CHECK-WINDOWS-ISO10646: #define __WCHAR_TYPE__ int

2
clang/test/Sema/wchar.c
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@ -1,5 +1,5 @@
// RUN: %clang_cc1 %s -fsyntax-only -verify
// RUN: %clang_cc1 %s -fsyntax-only -fshort-wchar -verify -DSHORT_WCHAR
// RUN: %clang_cc1 %s -fsyntax-only -fwchar-type=short -fno-signed-wchar -verify -DSHORT_WCHAR
typedef __WCHAR_TYPE__ wchar_t;

2
clang/test/SemaCXX/short-wchar-sign.cpp
View File

@ -1,5 +1,5 @@
// RUN: %clang_cc1 -triple i386-mingw32 -fsyntax-only -pedantic -verify %s
// RUN: %clang_cc1 -fshort-wchar -fsyntax-only -pedantic -verify %s
// RUN: %clang_cc1 -fwchar-type=short -fno-signed-wchar -fsyntax-only -pedantic -verify %s
// RUN: %clang_cc1 -triple x86_64-apple-darwin10 -fsyntax-only -pedantic -verify %s
// expected-no-diagnostics