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[driver][darwin] Take the OS version specified in "-target" as the ta…
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…rget

OS instead of inferring it from SDK / environment

The OS version is specified in -target should be used instead of the one in an
environment variable / SDK name.

rdar://35813850

Differential Revision: https://reviews.llvm.org/D40998

git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@321099 91177308-0d34-0410-b5e6-96231b3b80d8
(cherry picked from commit 257d246)
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@hyp
hyp committed Dec 19, 2017
1 parent af950ec commit 1ac7182
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Showing 5 changed files with 222 additions and 82 deletions.
116 changes: 69 additions & 47 deletions lib/Driver/ToolChains/Darwin.cpp
View file
Original file line number Diff line number Diff line change
Expand Up @@ -1237,6 +1237,10 @@ struct DarwinPlatform {
llvm_unreachable("Unsupported Darwin Source Kind");
}

static DarwinPlatform createFromTarget(llvm::Triple::OSType OS,
StringRef OSVersion, Arg *A) {
return DarwinPlatform(TargetArg, getPlatformFromOS(OS), OSVersion, A);
}
static DarwinPlatform createOSVersionArg(DarwinPlatformKind Platform,
Arg *A) {
return DarwinPlatform(OSVersionArg, Platform, A);
Expand All @@ -1254,33 +1258,32 @@ struct DarwinPlatform {
}
static DarwinPlatform createFromArch(llvm::Triple::OSType OS,
StringRef Value) {
DarwinPlatformKind Platform;
return DarwinPlatform(InferredFromArch, getPlatformFromOS(OS), Value);
}

private:
DarwinPlatform(SourceKind Kind, DarwinPlatformKind Platform, Arg *Argument)
: Kind(Kind), Platform(Platform), Argument(Argument) {}
DarwinPlatform(SourceKind Kind, DarwinPlatformKind Platform, StringRef Value,
Arg *Argument = nullptr)
: Kind(Kind), Platform(Platform), OSVersion(Value), Argument(Argument) {}

static DarwinPlatformKind getPlatformFromOS(llvm::Triple::OSType OS) {
switch (OS) {
case llvm::Triple::Darwin:
case llvm::Triple::MacOSX:
Platform = DarwinPlatformKind::MacOS;
break;
return DarwinPlatformKind::MacOS;
case llvm::Triple::IOS:
Platform = DarwinPlatformKind::IPhoneOS;
break;
return DarwinPlatformKind::IPhoneOS;
case llvm::Triple::TvOS:
Platform = DarwinPlatformKind::TvOS;
break;
return DarwinPlatformKind::TvOS;
case llvm::Triple::WatchOS:
Platform = DarwinPlatformKind::WatchOS;
break;
return DarwinPlatformKind::WatchOS;
default:
llvm_unreachable("Unable to infer Darwin variant");
}
return DarwinPlatform(InferredFromArch, Platform, Value);
}

private:
DarwinPlatform(SourceKind Kind, DarwinPlatformKind Platform, Arg *Argument)
: Kind(Kind), Platform(Platform), Argument(Argument) {}
DarwinPlatform(SourceKind Kind, DarwinPlatformKind Platform, StringRef Value)
: Kind(Kind), Platform(Platform), OSVersion(Value), Argument(nullptr) {}

SourceKind Kind;
DarwinPlatformKind Platform;
std::string OSVersion;
Expand Down Expand Up @@ -1453,27 +1456,35 @@ inferDeploymentTargetFromArch(DerivedArgList &Args, const Darwin &Toolchain,
const Driver &TheDriver) {
llvm::Triple::OSType OSTy = llvm::Triple::UnknownOS;

// Set the OSTy based on -target if -arch isn't present.
if (Args.hasArg(options::OPT_target) && !Args.hasArg(options::OPT_arch)) {
OSTy = Triple.getOS();
} else {
StringRef MachOArchName = Toolchain.getMachOArchName(Args);
if (MachOArchName == "armv7" || MachOArchName == "armv7s" ||
MachOArchName == "arm64")
OSTy = llvm::Triple::IOS;
else if (MachOArchName == "armv7k")
OSTy = llvm::Triple::WatchOS;
else if (MachOArchName != "armv6m" && MachOArchName != "armv7m" &&
MachOArchName != "armv7em")
OSTy = llvm::Triple::MacOSX;
}
StringRef MachOArchName = Toolchain.getMachOArchName(Args);
if (MachOArchName == "armv7" || MachOArchName == "armv7s" ||
MachOArchName == "arm64")
OSTy = llvm::Triple::IOS;
else if (MachOArchName == "armv7k")
OSTy = llvm::Triple::WatchOS;
else if (MachOArchName != "armv6m" && MachOArchName != "armv7m" &&
MachOArchName != "armv7em")
OSTy = llvm::Triple::MacOSX;

if (OSTy == llvm::Triple::UnknownOS)
return None;
return DarwinPlatform::createFromArch(OSTy,
getOSVersion(OSTy, Triple, TheDriver));
}

/// Returns the deployment target that's specified using the -target option.
Optional<DarwinPlatform> getDeploymentTargetFromTargetArg(
DerivedArgList &Args, const llvm::Triple &Triple, const Driver &TheDriver) {
if (!Args.hasArg(options::OPT_target))
return None;
if (Triple.getOS() == llvm::Triple::Darwin ||
Triple.getOS() == llvm::Triple::UnknownOS)
return None;
std::string OSVersion = getOSVersion(Triple.getOS(), Triple, TheDriver);
return DarwinPlatform::createFromTarget(Triple.getOS(), OSVersion,
Args.getLastArg(options::OPT_target));
}

} // namespace

void Darwin::AddDeploymentTarget(DerivedArgList &Args) const {
Expand All @@ -1498,24 +1509,35 @@ void Darwin::AddDeploymentTarget(DerivedArgList &Args) const {
}
}

// The OS target can be specified using the -m<os>version-min argument.
// The OS and the version can be specified using the -target argument.
Optional<DarwinPlatform> OSTarget =
getDeploymentTargetFromOSVersionArg(Args, getDriver());
// If no deployment target was specified on the command line, check for
// environment defines.
if (!OSTarget)
OSTarget =
getDeploymentTargetFromEnvironmentVariables(getDriver(), getTriple());
// If there is no command-line argument to specify the Target version and
// no environment variable defined, see if we can set the default based
// on -isysroot.
if (!OSTarget)
OSTarget = inferDeploymentTargetFromSDK(Args);
// If no OS targets have been specified, try to guess platform from -target
// or arch name and compute the version from the triple.
if (!OSTarget)
OSTarget =
inferDeploymentTargetFromArch(Args, *this, getTriple(), getDriver());
getDeploymentTargetFromTargetArg(Args, getTriple(), getDriver());
if (OSTarget) {
// Warn about superfluous -m<os>-version-min arg.
Optional<DarwinPlatform> OSVersionArgTarget =
getDeploymentTargetFromOSVersionArg(Args, getDriver());
if (OSVersionArgTarget)
getDriver().Diag(clang::diag::warn_drv_unused_argument)
<< OSVersionArgTarget->getAsString(Args, Opts);
} else {
// The OS target can be specified using the -m<os>version-min argument.
OSTarget = getDeploymentTargetFromOSVersionArg(Args, getDriver());
// If no deployment target was specified on the command line, check for
// environment defines.
if (!OSTarget)
OSTarget =
getDeploymentTargetFromEnvironmentVariables(getDriver(), getTriple());
// If there is no command-line argument to specify the Target version and
// no environment variable defined, see if we can set the default based
// on -isysroot.
if (!OSTarget)
OSTarget = inferDeploymentTargetFromSDK(Args);
// If no OS targets have been specified, try to guess platform from -target
// or arch name and compute the version from the triple.
if (!OSTarget)
OSTarget =
inferDeploymentTargetFromArch(Args, *this, getTriple(), getDriver());
}

assert(OSTarget && "Unable to infer Darwin variant");
OSTarget->addOSVersionMinArgument(Args, Opts);
Expand Down
138 changes: 128 additions & 10 deletions test/Driver/darwin-version.c
View file
Original file line number Diff line number Diff line change
Expand Up @@ -12,11 +12,15 @@
// CHECK-VERSION-IOS3: "armv6k-apple-ios3.0.0"

// RUN: env IPHONEOS_DEPLOYMENT_TARGET=11.0 \
// RUN: %clang -target armv7-apple-ios9.0 -c -### %s 2> %t.err
// RUN: %clang -target armv7-apple-darwin -c -### %s 2> %t.err
// RUN: FileCheck --input-file=%t.err --check-prefix=CHECK-VERSION-IOS4 %s
// CHECK-VERSION-IOS4: invalid iOS deployment version 'IPHONEOS_DEPLOYMENT_TARGET=11.0'

// RUN: %clang -target armv7-apple-ios9.0 -miphoneos-version-min=11.0 -c -### %s 2> %t.err
// RUN: %clang -target armv7-apple-ios11.0 -c -### %s 2> %t.err
// RUN: FileCheck --input-file=%t.err --check-prefix=CHECK-VERSION-IOS41 %s
// CHECK-VERSION-IOS41: invalid iOS deployment version '--target=armv7-apple-ios11.0'

// RUN: %clang -target armv7-apple-darwin -miphoneos-version-min=11.0 -c -### %s 2> %t.err
// RUN: FileCheck --input-file=%t.err --check-prefix=CHECK-VERSION-IOS5 %s
// CHECK-VERSION-IOS5: invalid iOS deployment version '-miphoneos-version-min=11.0'

Expand All @@ -25,13 +29,14 @@
// CHECK-VERSION-IOS6: invalid iOS deployment version '-mios-simulator-version-min=11.0'

// RUN: %clang -target armv7-apple-ios11.1 -c -### %s 2>&1 | \
// RUN: FileCheck --check-prefix=CHECK-VERSION-IOS7 %s
// RUN: %clang -target armv7-apple-ios9 -Wno-missing-sysroot -isysroot SDKs/iPhoneOS11.0.sdk -c -### %s 2>&1 | \
// RUN: FileCheck --check-prefix=CHECK-VERSION-IOS71 %s
// CHECK-VERSION-IOS71: invalid iOS deployment version
// RUN: %clang -target armv7-apple-darwin -Wno-missing-sysroot -isysroot SDKs/iPhoneOS11.0.sdk -c -### %s 2>&1 | \
// RUN: FileCheck --check-prefix=CHECK-VERSION-IOS7 %s
// CHECK-VERSION-IOS7: thumbv7-apple-ios10.99.99

// RUN: env IPHONEOS_DEPLOYMENT_TARGET=11.0 \
// RUN: %clang -target arm64-apple-ios11.0 -c -### %s 2>&1 | \
// RUN: %clang -target arm64-apple-darwin -c -### %s 2>&1 | \
// RUN: FileCheck --check-prefix=CHECK-VERSION-IOS8 %s
// CHECK-VERSION-IOS8: arm64-apple-ios11.0.0

Expand All @@ -49,7 +54,7 @@

// RUN: %clang -target armv7-apple-ios9.0 -miphoneos-version-min=11.0 -c -Wno-invalid-ios-deployment-target -### %s 2>&1 | \
// RUN: FileCheck --check-prefix=CHECK-VERSION-IOS12 %s
// CHECK-VERSION-IOS12: thumbv7-apple-ios11.0.0
// CHECK-VERSION-IOS12: thumbv7-apple-ios9.0.0

// RUN: %clang -target i686-apple-darwin8 -c %s -### 2>&1 | \
// RUN: FileCheck --check-prefix=CHECK-VERSION-OSX4 %s
Expand All @@ -68,14 +73,14 @@
// CHECK-VERSION-OSX6: "i386-apple-macosx10.6.0"
// RUN: %clang -target x86_64-apple-darwin14 -c %s -### 2>&1 | \
// RUN: FileCheck --check-prefix=CHECK-VERSION-OSX10 %s
// RUN: %clang -target x86_64-apple-macosx -mmacosx-version-min=10.10 -c %s -### 2>&1 | \
// RUN: %clang -target x86_64-apple-darwin -mmacosx-version-min=10.10 -c %s -### 2>&1 | \
// RUN: FileCheck --check-prefix=CHECK-VERSION-OSX10 %s
// RUN: %clang -target x86_64-apple-macosx -mmacos-version-min=10.10 -c %s -### 2>&1 | \
// RUN: %clang -target x86_64-apple-darwin -mmacos-version-min=10.10 -c %s -### 2>&1 | \
// RUN: FileCheck --check-prefix=CHECK-VERSION-OSX10 %s
// CHECK-VERSION-OSX10: "x86_64-apple-macosx10.10.0"
// RUN: %clang -target x86_64-apple-macosx -mmacosx-version-min= -c %s -### 2>&1 | \
// RUN: %clang -target x86_64-apple-darwin -mmacosx-version-min= -c %s -### 2>&1 | \
// RUN: FileCheck --check-prefix=CHECK-VERSION-MISSING %s
// RUN: %clang -target x86_64-apple-macosx -mmacos-version-min= -c %s -### 2>&1 | \
// RUN: %clang -target x86_64-apple-darwin -mmacos-version-min= -c %s -### 2>&1 | \
// RUN: FileCheck --check-prefix=CHECK-VERSION-MISSING %s
// CHECK-VERSION-MISSING: invalid version number
// RUN: %clang -target armv7k-apple-darwin -mwatchos-version-min=2.0 -c %s -### 2>&1 | \
Expand Down Expand Up @@ -144,3 +149,116 @@
// RUN: %clang -target x86_64-apple-darwin -c %s -### 2>&1 | \
// RUN: FileCheck --check-prefix=CHECK-VERSION-INVALID-ENV %s
// CHECK-VERSION-INVALID-ENV: invalid version number in 'MACOSX_DEPLOYMENT_TARGET=1000.1000'



// Target can specify the OS version:

// RUN: %clang -target x86_64-apple-macos10.11.2 -c %s -### 2>&1 | \
// RUN: FileCheck --check-prefix=CHECK-VERSION-TMAC2 %s
// CHECK-VERSION-TMAC2: "x86_64-apple-macosx10.11.2"

// RUN: %clang -target arm64-apple-ios11.1 -c %s -### 2>&1 | \
// RUN: FileCheck --check-prefix=CHECK-VERSION-TIOS1 %s
// CHECK-VERSION-TIOS1: "arm64-apple-ios11.1.0"

// RUN: %clang -target arm64-apple-tvos10.3 -c %s -### 2>&1 | \
// RUN: FileCheck --check-prefix=CHECK-VERSION-TTVOS1 %s
// CHECK-VERSION-TTVOS1: "arm64-apple-tvos10.3.0"

// RUN: %clang -target armv7k-apple-watchos4.1 -c %s -### 2>&1 | \
// RUN: FileCheck --check-prefix=CHECK-VERSION-TWATCHOS1 %s
// CHECK-VERSION-TWATCHOS1: "thumbv7k-apple-watchos4.1.0"

// "darwin" always back to the -m<os>version-min and environment:

// RUN: %clang -target x86_64-apple-darwin14 -c %s -### 2>&1 | \
// RUN: FileCheck --check-prefix=CHECK-VERSION-TDARWIN-FALL1 %s
// CHECK-VERSION-TDARWIN-FALL1: "x86_64-apple-macosx10.10.0"

// RUN: %clang -target x86_64-apple-darwin14 -miphoneos-version-min=10.1 -c %s -### 2>&1 | \
// RUN: FileCheck --check-prefix=CHECK-VERSION-TDARWIN-FALL2 %s
// CHECK-VERSION-TDARWIN-FALL2: "x86_64-apple-ios10.1.0-simulator"

// RUN: env IPHONEOS_DEPLOYMENT_TARGET=9.1 \
// RUN: %clang -target arm64-apple-darwin14 -c %s -### 2>&1 | \
// RUN: FileCheck --check-prefix=CHECK-VERSION-TDARWIN-FALL3 %s
// CHECK-VERSION-TDARWIN-FALL3: "arm64-apple-ios9.1.0"

// RUN: %clang -target arm64-apple-darwin14 -isysroot SDKs/iPhoneOS11.0.sdk -c %s -### 2>&1 | \
// RUN: FileCheck --check-prefix=CHECK-VERSION-TDARWIN-FALL4 %s
// CHECK-VERSION-TDARWIN-FALL4: "arm64-apple-ios11.0.0"

// RUN: %clang -target unknown-apple-darwin12 -arch armv7 -c %s -### 2>&1 | \
// RUN: FileCheck --check-prefix=CHECK-VERSION-TDARWIN-FALL5 %s
// CHECK-VERSION-TDARWIN-FALL5: "thumbv7-apple-ios5.0.0"

// Warn about -m<os>-version-min when it's used with target:

// RUN: %clang -target x86_64-apple-macos10.11.2 -mmacos-version-min=10.6 -c %s -### 2>&1 | \
// RUN: FileCheck --check-prefix=CHECK-VERSION-TNO-OSV1 %s
// CHECK-VERSION-TNO-OSV1: argument unused during compilation: '-mmacosx-version-min=10.6'

// RUN: %clang -target x86_64-apple-macos -miphoneos-version-min=9.1 -c %s -### 2>&1 | \
// RUN: FileCheck --check-prefix=CHECK-VERSION-TNO-OSV2 %s
// CHECK-VERSION-TNO-OSV2: argument unused during compilation: '-miphoneos-version-min=9.1'

// Target with OS version is not overriden by -m<os>-version-min variables:

// RUN: %clang -target x86_64-apple-macos10.11.2 -mmacos-version-min=10.6 -c %s -### 2>&1 | \
// RUN: FileCheck --check-prefix=CHECK-VERSION-TIGNORE-OSV1 %s
// CHECK-VERSION-TIGNORE-OSV1: "x86_64-apple-macosx10.11.2"

// RUN: %clang -target arm64-apple-ios11.0 -mios-version-min=9.0 -c %s -### 2>&1 | \
// RUN: FileCheck --check-prefix=CHECK-VERSION-TIGNORE-OSV2 %s
// CHECK-VERSION-TIGNORE-OSV2: "arm64-apple-ios11.0.0"

// RUN: %clang -target arm64-apple-tvos11.0 -mtvos-version-min=9.0 -c %s -### 2>&1 | \
// RUN: FileCheck --check-prefix=CHECK-VERSION-TIGNORE-OSV3 %s
// CHECK-VERSION-TIGNORE-OSV3: "arm64-apple-tvos11.0.0"

// RUN: %clang -target armv7k-apple-watchos3 -mwatchos-version-min=4 -c %s -### 2>&1 | \
// RUN: FileCheck --check-prefix=CHECK-VERSION-TIGNORE-OSV4 %s
// CHECK-VERSION-TIGNORE-OSV4: "thumbv7k-apple-watchos3.0.0"

// Target with OS version is not overriden by environment variables:

// RUN: env MACOSX_DEPLOYMENT_TARGET=10.1 \
// RUN: %clang -target i386-apple-macos10.5 -c %s -### 2>&1 | \
// RUN: FileCheck --check-prefix=CHECK-VERSION-TMACOS-CMD %s
// CHECK-VERSION-TMACOS-CMD: "i386-apple-macosx10.5.0"

// RUN: env IPHONEOS_DEPLOYMENT_TARGET=10.1 \
// RUN: %clang -target arm64-apple-ios11 -c %s -### 2>&1 | \
// RUN: FileCheck --check-prefix=CHECK-VERSION-TIOS-CMD %s
// CHECK-VERSION-TIOS-CMD: "arm64-apple-ios11.0.0"

// RUN: env TVOS_DEPLOYMENT_TARGET=8.3.1 \
// RUN: %clang -target arm64-apple-tvos9 -c %s -### 2>&1 | \
// RUN: FileCheck --check-prefix=CHECK-VERSION-TTVOS-CMD %s
// CHECK-VERSION-TTVOS-CMD: "arm64-apple-tvos9.0.0"

// RUN: env WATCHOS_DEPLOYMENT_TARGET=2 \
// RUN: %clang -target armv7k-apple-watchos3 -c %s -### 2>&1 | \
// RUN: FileCheck --check-prefix=CHECK-VERSION-TWATCHOS-CMD %s
// CHECK-VERSION-TWATCHOS-CMD: "thumbv7k-apple-watchos3.0.0"

// Target with OS version is not overriden by the SDK:

// RUN: %clang -target armv7-apple-ios9 -Wno-missing-sysroot -isysroot SDKs/iPhoneOS11.0.sdk -c -### %s 2>&1 | \
// RUN: FileCheck --check-prefix=CHECK-VERSION-TIOS-SDK %s
// CHECK-VERSION-TIOS-SDK: thumbv7-apple-ios9

// RUN: %clang -target armv7k-apple-watchos4 -Wno-missing-sysroot -isysroot SDKs/WatchOS3.0.sdk -c -### %s 2>&1 | \
// RUN: FileCheck --check-prefix=CHECK-VERSION-TWATCHOS-SDK %s
// CHECK-VERSION-TWATCHOS-SDK: thumbv7k-apple-watchos4

// RUN: %clang -target armv7-apple-tvos9 -Wno-missing-sysroot -isysroot SDKs/AppleTVOS11.0.sdk -c -### %s 2>&1 | \
// RUN: FileCheck --check-prefix=CHECK-VERSION-TTVOS-SDK %s
// CHECK-VERSION-TTVOS-SDK: thumbv7-apple-tvos9

// Target with OS version is not overriden by arch:

// RUN: %clang -target uknown-apple-macos10.11.2 -arch=armv7k -c %s -### 2>&1 | \
// RUN: FileCheck --check-prefix=CHECK-VERSION-TIGNORE-ARCH1 %s
// CHECK-VERSION-TIGNORE-ARCH1: "unknown-apple-macosx10.11.2"
24 changes: 12 additions & 12 deletions test/Driver/objc-weak.m
View file
Original file line number Diff line number Diff line change
@@ -1,27 +1,27 @@
// Check miscellaneous Objective-C options.

// RUN: %clang -target x86_64-apple-macosx -mmacosx-version-min=10.7 -S -### %s -fobjc-arc -fobjc-weak 2>&1 | FileCheck %s --check-prefix ARC-WEAK
// RUN: %clang -target x86_64-apple-macosx -mmacosx-version-min=10.7 -S -### %s -fno-objc-weak -fobjc-weak -fobjc-arc 2>&1 | FileCheck %s --check-prefix ARC-WEAK
// RUN: %clang -target x86_64-apple-macosx10.7 -S -### %s -fobjc-arc -fobjc-weak 2>&1 | FileCheck %s --check-prefix ARC-WEAK
// RUN: %clang -target x86_64-apple-macosx10.7 -S -### %s -fno-objc-weak -fobjc-weak -fobjc-arc 2>&1 | FileCheck %s --check-prefix ARC-WEAK
// ARC-WEAK: -fobjc-arc
// ARC-WEAK: -fobjc-weak

// RUN: %clang -target x86_64-apple-macosx -mmacosx-version-min=10.7 -S -### %s -fobjc-arc -fno-objc-weak 2>&1 | FileCheck %s --check-prefix ARC-NO-WEAK
// RUN: %clang -target x86_64-apple-macosx -mmacosx-version-min=10.7 -S -### %s -fobjc-weak -fno-objc-weak -fobjc-arc 2>&1 | FileCheck %s --check-prefix ARC-NO-WEAK
// RUN: %clang -target x86_64-apple-macos10.7 -S -### %s -fobjc-arc -fno-objc-weak 2>&1 | FileCheck %s --check-prefix ARC-NO-WEAK
// RUN: %clang -target x86_64-apple-macos10.7 -S -### %s -fobjc-weak -fno-objc-weak -fobjc-arc 2>&1 | FileCheck %s --check-prefix ARC-NO-WEAK
// ARC-NO-WEAK: -fobjc-arc
// ARC-NO-WEAK: -fno-objc-weak

// RUN: %clang -target x86_64-apple-macosx -mmacosx-version-min=10.5 -S -### %s -fobjc-arc -fobjc-weak 2>&1 | FileCheck %s --check-prefix ARC-WEAK-NOTSUPPORTED
// RUN: %clang -target x86_64-apple-macosx -mmacosx-version-min=10.5 -S -### %s -fno-objc-weak -fobjc-weak -fobjc-arc 2>&1 | FileCheck %s --check-prefix ARC-WEAK-NOTSUPPORTED
// RUN: %clang -target x86_64-apple-macosx10.5 -S -### %s -fobjc-arc -fobjc-weak 2>&1 | FileCheck %s --check-prefix ARC-WEAK-NOTSUPPORTED
// RUN: %clang -target x86_64-apple-macosx10.5 -S -### %s -fno-objc-weak -fobjc-weak -fobjc-arc 2>&1 | FileCheck %s --check-prefix ARC-WEAK-NOTSUPPORTED
// ARC-WEAK-NOTSUPPORTED: error: -fobjc-weak is not supported on the current deployment target

// RUN: %clang -target x86_64-apple-macosx -mmacosx-version-min=10.7 -S -### %s -fobjc-weak 2>&1 | FileCheck %s --check-prefix MRC-WEAK
// RUN: %clang -target x86_64-apple-macosx -mmacosx-version-min=10.7 -S -### %s -fno-objc-weak -fobjc-weak 2>&1 | FileCheck %s --check-prefix MRC-WEAK
// RUN: %clang -target x86_64-apple-macos10.7 -S -### %s -fobjc-weak 2>&1 | FileCheck %s --check-prefix MRC-WEAK
// RUN: %clang -target x86_64-apple-macos10.7 -S -### %s -fno-objc-weak -fobjc-weak 2>&1 | FileCheck %s --check-prefix MRC-WEAK
// MRC-WEAK: -fobjc-weak

// RUN: %clang -target x86_64-apple-macosx -mmacosx-version-min=10.7 -S -### %s -fno-objc-weak 2>&1 | FileCheck %s --check-prefix MRC-NO-WEAK
// RUN: %clang -target x86_64-apple-macosx -mmacosx-version-min=10.7 -S -### %s -fobjc-weak -fno-objc-weak 2>&1 | FileCheck %s --check-prefix MRC-NO-WEAK
// RUN: %clang -target x86_64-apple-macosx10.7 -S -### %s -fno-objc-weak 2>&1 | FileCheck %s --check-prefix MRC-NO-WEAK
// RUN: %clang -target x86_64-apple-macosx10.7 -S -### %s -fobjc-weak -fno-objc-weak 2>&1 | FileCheck %s --check-prefix MRC-NO-WEAK
// MRC-NO-WEAK: -fno-objc-weak

// RUN: %clang -target x86_64-apple-macosx -mmacosx-version-min=10.5 -S -### %s -fobjc-weak 2>&1 | FileCheck %s --check-prefix MRC-WEAK-NOTSUPPORTED
// RUN: %clang -target x86_64-apple-macosx -mmacosx-version-min=10.5 -S -### %s -fno-objc-weak -fobjc-weak 2>&1 | FileCheck %s --check-prefix MRC-WEAK-NOTSUPPORTED
// RUN: %clang -target x86_64-apple-macosx10.5 -S -### %s -fobjc-weak 2>&1 | FileCheck %s --check-prefix MRC-WEAK-NOTSUPPORTED
// RUN: %clang -target x86_64-apple-macosx10.5 -S -### %s -fno-objc-weak -fobjc-weak 2>&1 | FileCheck %s --check-prefix MRC-WEAK-NOTSUPPORTED
// MRC-WEAK-NOTSUPPORTED: error: -fobjc-weak is not supported on the current deployment target

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