[Myriad]: add "<sysroot>/include" to standard search path

llvm-svn: 247948

Author: snuglas

clang/lib/Driver/ToolChains.cpp

@@ -3944,6 +3944,12 @@ MyriadToolChain::MyriadToolChain(const Driver &D, const llvm::Triple &Triple,
 
 MyriadToolChain::~MyriadToolChain() {}
 
+void MyriadToolChain::AddClangSystemIncludeArgs(const ArgList &DriverArgs,
+                                                ArgStringList &CC1Args) const {
+  if (!DriverArgs.hasArg(options::OPT_nostdinc))
+    addSystemInclude(DriverArgs, CC1Args, getDriver().SysRoot + "/include");
+}
+
 // MyriadToolChain handles several triples:
 //  {shave,sparc{,el}}-myriad-{rtems,unknown}-elf
 Tool *MyriadToolChain::SelectTool(const JobAction &JA) const {

clang/lib/Driver/ToolChains.h

@@ -928,6 +928,9 @@ class LLVM_LIBRARY_VISIBILITY MyriadToolChain : public Generic_GCC {
                   const llvm::opt::ArgList &Args);
   ~MyriadToolChain() override;
 
+  void
+  AddClangSystemIncludeArgs(const llvm::opt::ArgList &DriverArgs,
+                            llvm::opt::ArgStringList &CC1Args) const override;
   Tool *SelectTool(const JobAction &JA) const override;
   void getCompilerSupportDir(std::string &Dir) const;
   void getBuiltinLibDir(std::string &Dir) const;

clang/test/Driver/myriad-toolchain.c

@@ -8,6 +8,15 @@
 // LINK_WITH_RTEMS: Inputs/basic_myriad_tree/lib/gcc/sparc-myriad-elf/4.8.2/crtend.o
 // LINK_WITH_RTEMS: Inputs/basic_myriad_tree/lib/gcc/sparc-myriad-elf/4.8.2/crtn.o
 
+// RUN: %clang -### -E -target sparc-myriad --sysroot=/yow %s 2>&1 \
+// RUN:   | FileCheck %s -check-prefix=SLASH_INCLUDE
+// SLASH_INCLUDE: "-isysroot" "/yow" "-internal-isystem" "/yow/include"
+
+// RUN: %clang -### -E -target sparc-myriad --sysroot=/yow %s -nostdinc 2>&1 \
+// RUN:   | FileCheck %s -check-prefix=NO_SLASH_INCLUDE
+// NO_SLASH_INCLUDE: "-isysroot" "/yow"
+// NO_SLASH_INCLUDE-NOT: "-internal-isystem" "/yow/include"
+
 // RUN: %clang -### -target what-myriad %s 2>&1 | FileCheck %s -check-prefix=BAD_ARCH
 // BAD_ARCH: the target architecture 'what' is not supported by the target 'myriad'