[PATCH] Imply linker arguments from '-fveclib' option.

[Michael Zolotukhin]

REPOSITORY
  rL LLVM

http://reviews.llvm.org/D8362

Files:
  cfe/trunk/lib/Driver/Tools.cpp
  cfe/trunk/test/Driver/fveclib.c

Index: cfe/trunk/test/Driver/fveclib.c
===================================================================
--- cfe/trunk/test/Driver/fveclib.c
+++ cfe/trunk/test/Driver/fveclib.c
@@ -6,3 +6,12 @@
 // CHECK-ACCELERATE: "-fveclib=Accelerate"
 
 // CHECK-INVALID: error: invalid value 'something' in '-fveclib=something'
+
+// RUN: %clang -fveclib=Accelerate %s -target arm64-apple-ios8.0.0 -### 2>&1 | FileCheck --check-prefix=CHECK-LINK %s
+// CHECK-LINK: "-framework" "Accelerate"
+
+// RUN: %clang -fveclib=Accelerate %s -nostdlib -target arm64-apple-ios8.0.0 -### 2>&1 | FileCheck --check-prefix=CHECK-LINK-NOSTDLIB %s
+// CHECK-LINK-NOSTDLIB-NOT: "-framework" "Accelerate"
+
+// RUN: %clang -fveclib=Accelerate %s -nodefaultlibs -target arm64-apple-ios8.0.0 -### 2>&1 | FileCheck --check-prefix=CHECK-LINK-NODEFAULTLIBS %s
+// CHECK-LINK-NODEFAULTLIBS-NOT: "-framework" "Accelerate"
Index: cfe/trunk/lib/Driver/Tools.cpp
===================================================================
--- cfe/trunk/lib/Driver/Tools.cpp
+++ cfe/trunk/lib/Driver/Tools.cpp
@@ -6138,6 +6138,16 @@
     CmdArgs.push_back(Args.MakeArgString(std::string("-F") +
                                          (*it)->getValue()));
 
+  if (!Args.hasArg(options::OPT_nostdlib) &&
+      !Args.hasArg(options::OPT_nodefaultlibs)) {
+    if (Arg *A = Args.getLastArg(options::OPT_fveclib)) {
+      if (A->getValue() == StringRef("Accelerate")) {
+        CmdArgs.push_back("-framework");
+        CmdArgs.push_back("Accelerate");
+      }
+    }
+  }
+
   const char *Exec =
     Args.MakeArgString(getToolChain().GetLinkerPath());
   std::unique_ptr<Command> Cmd =

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