[AIX] Add -lc++abi and -lunwind for linking

[jasonliu]

Summary

We are going to have libc++abi.a and libunwind.a on AIX.
Add the necessary linking command to pick the libraries up.

Notice that the current change would pass in -lunwind when we are compiling in C mode.
If that's not what we want, then we might want to consider pass -lunwind in AddCXXStdlibLibArgs instead of AddUnwindLibrary.

[daltenty]

LGTM

(The C case is consistent with the GCC on AIX and clang w/ libc++ on Linux behaviour)

clang/lib/Driver/ToolChain.cpp

ToolChain::UnwindLibType ToolChain::GetUnwindLibType(
   const Arg *A = Args.getLastArg(options::OPT_unwindlib_EQ);
   StringRef LibName = A ? A->getValue() : CLANG_DEFAULT_UNWINDLIB;
 
   if (LibName == "none")
     unwindLibType = ToolChain::UNW_None;
   else if (LibName == "platform" || LibName == "") {
     ToolChain::RuntimeLibType RtLibType = GetRuntimeLibType(Args);
     if (RtLibType == ToolChain::RLT_CompilerRT) {
-      if (getTriple().isAndroid())
+      if (getTriple().isAndroid() || getTriple().isOSAIX())
         unwindLibType = ToolChain::UNW_CompilerRT;
       else
         unwindLibType = ToolChain::UNW_None;
     } else if (RtLibType == ToolChain::RLT_Libgcc)
       unwindLibType = ToolChain::UNW_Libgcc;
   } else if (LibName == "libunwind") {
     if (GetRuntimeLibType(Args) == RLT_Libgcc)
       getDriver().Diag(diag::err_drv_incompatible_unwindlib);

clang/lib/Driver/ToolChains/AIX.cpp

void AIX::AddClangSystemIncludeArgs(const ArgList &DriverArgs,
   addSystemInclude(DriverArgs, CC1Args, UP.str());
 }
 
 void AIX::AddCXXStdlibLibArgs(const llvm::opt::ArgList &Args,
                               llvm::opt::ArgStringList &CmdArgs) const {
   switch (GetCXXStdlibType(Args)) {
   case ToolChain::CST_Libcxx:
     CmdArgs.push_back("-lc++");
+    CmdArgs.push_back("-lc++abi");
     return;
   case ToolChain::CST_Libstdcxx:
     llvm::report_fatal_error("linking libstdc++ unimplemented on AIX");
   }
 
   llvm_unreachable("Unexpected C++ library type; only libc++ is supported.");
 }
 

clang/lib/Driver/ToolChains/CommonArgs.cpp

static void AddUnwindLibrary(const ToolChain &TC, const Driver &D,
   case ToolChain::UNW_Libgcc: {
     if (LGT == LibGccType::StaticLibGcc)
       CmdArgs.push_back("-lgcc_eh");
     else
       CmdArgs.push_back("-lgcc_s");
     break;
   }
   case ToolChain::UNW_CompilerRT:
-    if (LGT == LibGccType::StaticLibGcc)
+    if (TC.getTriple().isOSAIX()) {
+      // AIX only has libunwind as a shared library. So do not pass
+      // anything in if -static is specified.
+      if (LGT != LibGccType::StaticLibGcc)
+        CmdArgs.push_back("-lunwind");
+    } else if (LGT == LibGccType::StaticLibGcc) {
       CmdArgs.push_back("-l:libunwind.a");
-    else if (TC.getTriple().isOSCygMing()) {
+    } else if (TC.getTriple().isOSCygMing()) {
       if (LGT == LibGccType::SharedLibGcc)
         CmdArgs.push_back("-l:libunwind.dll.a");
       else
         // Let the linker choose between libunwind.dll.a and libunwind.a
         // depending on what's available, and depending on the -static flag
         CmdArgs.push_back("-lunwind");
-    } else
+    } else {
       CmdArgs.push_back("-l:libunwind.so");
+    }
     break;
   }
 
   if (AsNeeded)
     CmdArgs.push_back(getAsNeededOption(TC, false));
 }
 
 static void AddLibgcc(const ToolChain &TC, const Driver &D,

clang/test/Driver/aix-ld.c

 // CHECK-LD32:     "-isysroot" "[[SYSROOT:[^"]+]]"
 // CHECK-LD32:     "{{.*}}ld{{(.exe)?}}"
 // CHECK-LD32-NOT: "-bnso"
 // CHECK-LD32:     "-b32"
 // CHECK-LD32:     "-bpT:0x10000000" "-bpD:0x20000000"
 // CHECK-LD32:     "[[SYSROOT]]/usr/lib{{/|\\\\}}crt0.o"
 // CHECK-LD32:     "[[SYSROOT]]/usr/lib{{/|\\\\}}crti.o"
 // CHECK-LD32-NOT: "-lc++"
+// CHECK-LD32-NOT: "-lc++abi"
 // CHECK-LD32:     "[[RESOURCE_DIR]]{{/|\\\\}}lib{{/|\\\\}}aix{{/|\\\\}}libclang_rt.builtins-powerpc.a"
+// CHECK-LD32:     "-lunwind"
 // CHECK-LD32-NOT: "-lm"
 // CHECK-LD32:     "-lc"
 
 // Check powerpc64-ibm-aix7.1.0.0, 64-bit.
 // RUN: %clang -no-canonical-prefixes %s -### 2>&1 \
 // RUN:        -resource-dir=%S/Inputs/resource_dir \
 // RUN:        -target powerpc64-ibm-aix7.1.0.0 \
 // RUN:        --sysroot %S/Inputs/aix_ppc_tree \
 // RUN:   | FileCheck --check-prefix=CHECK-LD64 %s
 // CHECK-LD64-NOT: warning:
 // CHECK-LD64:     {{.*}}clang{{(.exe)?}}" "-cc1" "-triple" "powerpc64-ibm-aix7.1.0.0"
 // CHECK-LD64:     "-resource-dir" "[[RESOURCE_DIR:[^"]+]]"
 // CHECK-LD64:     "-isysroot" "[[SYSROOT:[^"]+]]"
 // CHECK-LD64:     "{{.*}}ld{{(.exe)?}}"
 // CHECK-LD64-NOT: "-bnso"
 // CHECK-LD64:     "-b64"
 // CHECK-LD64:     "-bpT:0x100000000" "-bpD:0x110000000"
 // CHECK-LD64:     "[[SYSROOT]]/usr/lib{{/|\\\\}}crt0_64.o"
 // CHECK-LD64:     "[[SYSROOT]]/usr/lib{{/|\\\\}}crti_64.o"
 // CHECK-LD64-NOT: "-lc++"
+// CHECK-LD64-NOT: "-lc++abi"
 // CHECK-LD64:     "[[RESOURCE_DIR]]{{/|\\\\}}lib{{/|\\\\}}aix{{/|\\\\}}libclang_rt.builtins-powerpc64.a"
+// CHECK-LD64:     "-lunwind"
 // CHECK-LD64-NOT: "-lm"
 // CHECK-LD64:     "-lc"
 
 // Check powerpc-ibm-aix7.1.0.0, 32-bit. Enable POSIX thread support.
 // RUN: %clang -no-canonical-prefixes %s -### 2>&1 \
 // RUN:        -resource-dir=%S/Inputs/resource_dir \
 // RUN:        -pthread \
 // RUN:        -target powerpc-ibm-aix7.1.0.0 \
 // RUN:        --sysroot %S/Inputs/aix_ppc_tree \
 // RUN:   | FileCheck --check-prefix=CHECK-LD32-PTHREAD %s
 // CHECK-LD32-PTHREAD-NOT: warning:
 // CHECK-LD32-PTHREAD:     {{.*}}clang{{(.exe)?}}" "-cc1" "-triple" "powerpc-ibm-aix7.1.0.0"
 // CHECK-LD32-PTHREAD:     "-resource-dir" "[[RESOURCE_DIR:[^"]+]]"
 // CHECK-LD32-PTHREAD:     "-isysroot" "[[SYSROOT:[^"]+]]"
 // CHECK-LD32-PTHREAD:     "{{.*}}ld{{(.exe)?}}"
 // CHECK-LD32-PTHREAD-NOT: "-bnso"
 // CHECK-LD32-PTHREAD:     "-b32"
 // CHECK-LD32-PTHREAD:     "-bpT:0x10000000" "-bpD:0x20000000"
 // CHECK-LD32-PTHREAD:     "[[SYSROOT]]/usr/lib{{/|\\\\}}crt0.o"
 // CHECK-LD32-PTHREAD:     "[[SYSROOT]]/usr/lib{{/|\\\\}}crti.o"
 // CHECK-LD32-PTHREAD-NOT: "-lc++"
+// CHECK-LD32-PTHREAD-NOT: "-lc++abi"
 // CHECK-LD32-PTHREAD:     "[[RESOURCE_DIR]]{{/|\\\\}}lib{{/|\\\\}}aix{{/|\\\\}}libclang_rt.builtins-powerpc.a"
+// CHECK-LD32-PTHREAD:     "-lunwind"
 // CHECK-LD32-PTHREAD:     "-lpthreads"
 // CHECK-LD32-PTHREAD-NOT: "-lm"
 // CHECK-LD32-PTHREAD:     "-lc"
 
 // Check powerpc64-ibm-aix7.1.0.0, 64-bit. POSIX thread alias.
 // RUN: %clang -no-canonical-prefixes %s -### 2>&1 \
 // RUN:        -resource-dir=%S/Inputs/resource_dir \
 // RUN:        -pthreads \
 // RUN:        -target powerpc64-ibm-aix7.1.0.0 \
 // RUN:        --sysroot %S/Inputs/aix_ppc_tree \
 // RUN:   | FileCheck --check-prefix=CHECK-LD64-PTHREAD %s
 // CHECK-LD64-PTHREAD-NOT: warning:
 // CHECK-LD64-PTHREAD:     {{.*}}clang{{(.exe)?}}" "-cc1" "-triple" "powerpc64-ibm-aix7.1.0.0"
 // CHECK-LD64-PTHREAD:     "-resource-dir" "[[RESOURCE_DIR:[^"]+]]"
 // CHECK-LD64-PTHREAD:     "-isysroot" "[[SYSROOT:[^"]+]]"
 // CHECK-LD64-PTHREAD:     "{{.*}}ld{{(.exe)?}}"
 // CHECK-LD64-PTHREAD-NOT: "-bnso"
 // CHECK-LD64-PTHREAD:     "-b64"
 // CHECK-LD64-PTHREAD:     "-bpT:0x100000000" "-bpD:0x110000000"
 // CHECK-LD64-PTHREAD:     "[[SYSROOT]]/usr/lib{{/|\\\\}}crt0_64.o"
 // CHECK-LD64-PTHREAD:     "[[SYSROOT]]/usr/lib{{/|\\\\}}crti_64.o"
 // CHECK-LD64-PTHREAD-NOT: "-lc++"
+// CHECK-LD64-PTHREAD-NOT: "-lc++abi"
 // CHECK-LD64-PTHREAD:     "[[RESOURCE_DIR]]{{/|\\\\}}lib{{/|\\\\}}aix{{/|\\\\}}libclang_rt.builtins-powerpc64.a"
+// CHECK-LD64-PTHREAD:     "-lunwind"
 // CHECK-LD64-PTHREAD:     "-lpthreads"
 // CHECK-LD64-PTHREAD-NOT: "-lm"
 // CHECK-LD64-PTHREAD:     "-lc"
 
 // Check powerpc-ibm-aix7.1.0.0, 32-bit. Enable profiling.
 // RUN: %clang -no-canonical-prefixes %s -### 2>&1 \
 // RUN:        -resource-dir=%S/Inputs/resource_dir \
 // RUN:        -p \
 // RUN:        -target powerpc-ibm-aix7.1.0.0 \
 // RUN:        --sysroot %S/Inputs/aix_ppc_tree \
 // RUN:   | FileCheck --check-prefix=CHECK-LD32-PROF %s
 // CHECK-LD32-PROF-NOT: warning:
 // CHECK-LD32-PROF:     {{.*}}clang{{(.exe)?}}" "-cc1" "-triple" "powerpc-ibm-aix7.1.0.0"
 // CHECK-LD32-PROF:     "-resource-dir" "[[RESOURCE_DIR:[^"]+]]"
 // CHECK-LD32-PROF:     "-isysroot" "[[SYSROOT:[^"]+]]"
 // CHECK-LD32-PROF:     "{{.*}}ld{{(.exe)?}}"
 // CHECK-LD32-PROF-NOT: "-bnso"
 // CHECK-LD32-PROF:     "-b32"
 // CHECK-LD32-PROF:     "-bpT:0x10000000" "-bpD:0x20000000"
 // CHECK-LD32-PROF:     "[[SYSROOT]]/usr/lib{{/|\\\\}}mcrt0.o"
 // CHECK-LD32-PROF:     "[[SYSROOT]]/usr/lib{{/|\\\\}}crti.o"
 // CHECK-LD32-PROF-NOT: "-lc++"
+// CHECK-LD32-PROF-NOT: "-lc++abi"
 // CHECK-LD32-PROF:     "[[RESOURCE_DIR]]{{/|\\\\}}lib{{/|\\\\}}aix{{/|\\\\}}libclang_rt.builtins-powerpc.a"
+// CHECK-LD32-PROF:     "-lunwind"
 // CHECK-LD32-PROF-NOT: "-lm"
 // CHECK-LD32-PROF:     "-lc"
 
 // Check powerpc64-ibm-aix7.1.0.0, 64-bit. Enable g-profiling.
 // RUN: %clang -no-canonical-prefixes %s -### 2>&1 \
 // RUN:        -resource-dir=%S/Inputs/resource_dir \
 // RUN:        -pg \
 // RUN:        -target powerpc64-ibm-aix7.1.0.0 \
 // RUN:        --sysroot %S/Inputs/aix_ppc_tree \
 // RUN:   | FileCheck --check-prefix=CHECK-LD64-GPROF %s
 // CHECK-LD64-GPROF-NOT: warning:
 // CHECK-LD64-GPROF:     {{.*}}clang{{(.exe)?}}" "-cc1" "-triple" "powerpc64-ibm-aix7.1.0.0"
 // CHECK-LD64-GPROF:     "-resource-dir" "[[RESOURCE_DIR:[^"]+]]"
 // CHECK-LD64-GPROF:     "-isysroot" "[[SYSROOT:[^"]+]]"
 // CHECK-LD64-GPROF:     "{{.*}}ld{{(.exe)?}}"
 // CHECK-LD64-GPROF-NOT: "-bnso"
 // CHECK-LD64-GPROF:     "-b64"
 // CHECK-LD64-GPROF:     "-bpT:0x100000000" "-bpD:0x110000000"
 // CHECK-LD64-GPROF:     "[[SYSROOT]]/usr/lib{{/|\\\\}}gcrt0_64.o"
 // CHECK-LD64-GPROF:     "[[SYSROOT]]/usr/lib{{/|\\\\}}crti_64.o"
 // CHECK-LD64-GPROF-NOT: "-lc++"
+// CHECK-LD64-GPROF-NOT: "-lc++abi"
 // CHECK-LD64-GPROF:     "[[RESOURCE_DIR]]{{/|\\\\}}lib{{/|\\\\}}aix{{/|\\\\}}libclang_rt.builtins-powerpc64.a"
+// CHECK-LD64-GPROF:     "-lunwind"
 // CHECK-LD64-GPROF-NOT: "-lm"
 // CHECK-LD64-GPROF:     "-lc"
 
 // Check powerpc-ibm-aix7.1.0.0, 32-bit. Static linking.
 // RUN: %clang -no-canonical-prefixes %s -### 2>&1 \
 // RUN:        -resource-dir=%S/Inputs/resource_dir \
 // RUN:        -static \
 // RUN:        -target powerpc-ibm-aix7.1.0.0 \
 // RUN:        --sysroot %S/Inputs/aix_ppc_tree \
 // RUN:   | FileCheck --check-prefix=CHECK-LD32-STATIC %s
 // CHECK-LD32-STATIC-NOT: warning:
 // CHECK-LD32-STATIC:     {{.*}}clang{{(.exe)?}}" "-cc1" "-triple" "powerpc-ibm-aix7.1.0.0"
 // CHECK-LD32-STATIC:     "-resource-dir" "[[RESOURCE_DIR:[^"]+]]"
 // CHECK-LD32-STATIC:     "-isysroot" "[[SYSROOT:[^"]+]]"
 // CHECK-LD32-STATIC:     "{{.*}}ld{{(.exe)?}}"
 // CHECK-LD32-STATIC:     "-bnso"
 // CHECK-LD32-STATIC:     "-b32"
 // CHECK-LD32-STATIC:     "-bpT:0x10000000" "-bpD:0x20000000"
 // CHECK-LD32-STATIC:     "[[SYSROOT]]/usr/lib{{/|\\\\}}crt0.o"
 // CHECK-LD32-STATIC:     "[[SYSROOT]]/usr/lib{{/|\\\\}}crti.o"
 // CHECK-LD32-STATIC-NOT: "-lc++"
+// CHECK-LD32-STATIC-NOT: "-lc++abi"
 // CHECK-LD32-STATIC:     "[[RESOURCE_DIR]]{{/|\\\\}}lib{{/|\\\\}}aix{{/|\\\\}}libclang_rt.builtins-powerpc.a"
+// CHECK-LD32-STATIC-NOT: "-lunwind"
 // CHECK-LD32-STATIC-NOT: "-lm"
 // CHECK-LD32-STATIC:     "-lc"
 
 // Check powerpc-ibm-aix7.1.0.0, 32-bit. Library search path.
 // RUN: %clang -no-canonical-prefixes %s -### 2>&1 \
 // RUN:        -resource-dir=%S/Inputs/resource_dir \
 // RUN:        -L%S/Inputs/aix_ppc_tree/powerpc-ibm-aix7.1.0.0 \
 // RUN:        -target powerpc-ibm-aix7.1.0.0 \
 // RUN:        --sysroot %S/Inputs/aix_ppc_tree \
 // RUN:   | FileCheck --check-prefix=CHECK-LD32-LIBP %s
 // CHECK-LD32-LIBP-NOT: warning:
 // CHECK-LD32-LIBP:     {{.*}}clang{{(.exe)?}}" "-cc1" "-triple" "powerpc-ibm-aix7.1.0.0"
 // CHECK-LD32-LIBP:     "-resource-dir" "[[RESOURCE_DIR:[^"]+]]"
 // CHECK-LD32-LIBP:     "-isysroot" "[[SYSROOT:[^"]+]]"
 // CHECK-LD32-LIBP:     "{{.*}}ld{{(.exe)?}}"
 // CHECK-LD32-LIBP-NOT: "-bnso"
 // CHECK-LD32-LIBP:     "-b32"
 // CHECK-LD32-LIBP:     "-bpT:0x10000000" "-bpD:0x20000000"
 // CHECK-LD32-LIBP:     "[[SYSROOT]]/usr/lib{{/|\\\\}}crt0.o"
 // CHECK-LD32-LIBP:     "[[SYSROOT]]/usr/lib{{/|\\\\}}crti.o"
 // CHECK-LD32-LIBP:     "-L[[SYSROOT]]/powerpc-ibm-aix7.1.0.0"
 // CHECK-LD32-LIBP-NOT: "-lc++"
+// CHECK-LD32-LIBP-NOT: "-lc++abi"
 // CHECK-LD32-LIBP:     "[[RESOURCE_DIR]]{{/|\\\\}}lib{{/|\\\\}}aix{{/|\\\\}}libclang_rt.builtins-powerpc.a"
+// CHECK-LD32-LIBP:     "-lunwind"
 // CHECK-LD32-LIBP-NOT: "-lm"
 // CHECK-LD32-LIBP:     "-lc"
 
 // Check powerpc-ibm-aix7.1.0.0, 32-bit. nostdlib.
 // RUN: %clang -no-canonical-prefixes %s -### 2>&1 \
 // RUN:        -resource-dir=%S/Inputs/resource_dir \
 // RUN:        -nostdlib \
 // RUN:        -pthread \
 // RUN:        -target powerpc-ibm-aix7.1.0.0 \
 // RUN:        --sysroot %S/Inputs/aix_ppc_tree \
 // RUN:   | FileCheck --check-prefix=CHECK-LD32-NO-STD-LIB %s
 // CHECK-LD32-NO-STD-LIB-NOT: warning:
 // CHECK-LD32-NO-STD-LIB:     {{.*}}clang{{(.exe)?}}" "-cc1" "-triple" "powerpc-ibm-aix7.1.0.0"
 // CHECK-LD32-NO-STD-LIB:     "-resource-dir" "[[RESOURCE_DIR:[^"]+]]"
 // CHECK-LD32-NO-STD-LIB:     "-isysroot" "[[SYSROOT:[^"]+]]"
 // CHECK-LD32-NO-STD-LIB:     "{{.*}}ld{{(.exe)?}}"
 // CHECK-LD32-NO-STD-LIB-NOT: "-bnso"
 // CHECK-LD32-NO-STD-LIB:     "-b32"
 // CHECK-LD32-NO-STD-LIB:     "-bpT:0x10000000" "-bpD:0x20000000"
 // CHECK-LD32-NO-STD-LIB-NOT: "[[SYSROOT]]/usr/lib{{/|\\\\}}crt0.o"
 // CHECK-LD32-NO-STD-LIB-NOT: "[[SYSROOT]]/usr/lib{{/|\\\\}}crti.o"
 // CHECK-LD32-NO-STD-LIB-NOT: "-lc++"
+// CHECK-LD32-NO-STD-LIB-NOT: "-lc++abi"
 // CHECK-LD32-NO-STD-LIB-NOT: "[[RESOURCE_DIR]]{{/|\\\\}}lib{{/|\\\\}}aix{{/|\\\\}}libclang_rt.builtins-powerpc.a"
+// CHECK-LD32-NO-STD-LIB-NOT: "-lunwind"
 // CHECK-LD32-NO-STD-LIB-NOT: "-lpthreads"
 // CHECK-LD32-NO-STD-LIB-NOT: "-lm"
 // CHECK-LD32-NO-STD-LIB-NOT: "-lc"
 
 // Check powerpc64-ibm-aix7.1.0.0, 64-bit. nodefaultlibs.
 // RUN: %clang -no-canonical-prefixes %s -### 2>&1 \
 // RUN:        -resource-dir=%S/Inputs/resource_dir \
 // RUN:        -nodefaultlibs \
 // RUN:        -pthread \
 // RUN:        -target powerpc64-ibm-aix7.1.0.0 \
 // RUN:        --sysroot %S/Inputs/aix_ppc_tree \
 // RUN:   | FileCheck --check-prefix=CHECK-LD64-NO-DEFAULT-LIBS %s
 // CHECK-LD64-NO-DEFAULT-LIBS-NOT: warning:
 // CHECK-LD64-NO-DEFAULT-LIBS:     {{.*}}clang{{(.exe)?}}" "-cc1" "-triple" "powerpc64-ibm-aix7.1.0.0"
 // CHECK-LD64-NO-DEFAULT-LIBS:     "-resource-dir" "[[RESOURCE_DIR:[^"]+]]"
 // CHECK-LD64-NO-DEFAULT-LIBS:     "-isysroot" "[[SYSROOT:[^"]+]]"
 // CHECK-LD64-NO-DEFAULT-LIBS:     "{{.*}}ld{{(.exe)?}}"
 // CHECK-LD64-NO-DEFAULT-LIBS-NOT: "-bnso"
 // CHECK-LD64-NO-DEFAULT-LIBS:     "-b64"
 // CHECK-LD64-NO-DEFAULT-LIBS:     "-bpT:0x100000000" "-bpD:0x110000000"
 // CHECK-LD64-NO-DEFAULT-LIBS:     "[[SYSROOT]]/usr/lib{{/|\\\\}}crt0_64.o"
 // CHECK-LD64-NO-DEFAULT-LIBS:     "[[SYSROOT]]/usr/lib{{/|\\\\}}crti_64.o"
 // CHECK-LD64-NO-DEFAULT-LIBS-NOT: "-lc++"
+// CHECK-LD64-NO-DEFAULT-LIBS-NOT: "-lc++abi"
 // CHECK-LD64-NO-DEFAULT-LIBS-NOT: "[[RESOURCE_DIR]]{{/|\\\\}}lib{{/|\\\\}}aix{{/|\\\\}}libclang_rt.builtins-powerpc64.a"
+// CHECK-LD64-NO-DEFAULT-LIBS-NOT: "-lunwind"
 // CHECK-LD64-NO-DEFAULT-LIBS-NOT: "-lpthreads"
 // CHECK-LD64-NO-DEFAULT-LIBS-NOT: "-lm"
 // CHECK-LD64-NO-DEFAULT-LIBS-NOT: "-lc"
 
 // Check powerpc-ibm-aix7.1.0.0, 32-bit. 'bcdtors' and argument order.
 // RUN: %clang -no-canonical-prefixes %s 2>&1 -### \
 // RUN:        -resource-dir=%S/Inputs/resource_dir \
 // RUN:        -Wl,-bnocdtors \
 // RUN:        -target powerpc-ibm-aix7.1.0.0 \
 // RUN:        --sysroot %S/Inputs/aix_ppc_tree \
 // RUN:   | FileCheck --check-prefix=CHECK-LD32-ARG-ORDER %s
 // CHECK-LD32-ARG-ORDER:     {{.*}}clang{{.*}}" "-cc1" "-triple" "powerpc-ibm-aix7.1.0.0"
 // CHECK-LD32-ARG-ORDER:     "-resource-dir" "[[RESOURCE_DIR:[^"]+]]"
 // CHECK-LD32-ARG-ORDER:     "-isysroot" "[[SYSROOT:[^"]+]]"
 // CHECK-LD32-ARG-ORDER:     "{{.*}}ld{{(.exe)?}}"
 // CHECK-LD32-ARG-ORDER-NOT: "-bnso"
 // CHECK-LD32-ARG-ORDER:     "-b32"
 // CHECK-LD32-ARG-ORDER:     "-bpT:0x10000000" "-bpD:0x20000000"
 // CHECK-LD32-ARG-ORDER:     "[[SYSROOT]]/usr/lib{{/|\\\\}}crt0.o"
 // CHECK-LD32-ARG-ORDER:     "[[SYSROOT]]/usr/lib{{/|\\\\}}crti.o"
 // CHECK-LD32-ARG-ORDER:     "-bcdtors:all:0:s"
 // CHECK-LD32-ARG-ORDER:     "-bnocdtors"
 // CHECK-LD32-ARG-ORDER-NOT: "-bcdtors:all:0:s"
 // CHECK-LD32-ARG-ORDER-NOT: "-lc++"
+// CHECK-LD32-ARG-ORDER-NOT: "-lc++abi"
 // CHECK-LD32-ARG-ORDER:     "[[RESOURCE_DIR]]{{/|\\\\}}lib{{/|\\\\}}aix{{/|\\\\}}libclang_rt.builtins-powerpc.a"
+// CHECK-LD32-ARG-ORDER:     "-lunwind"
 // CHECK-LD32-ARG-ORDER-NOT: "-lm"
 // CHECK-LD32-ARG-ORDER:     "-lc"
 
 // Check powerpc-ibm-aix7.1.0.0, 32-bit. 'bcdtors' and argument order.
 // RUN: %clangxx -no-canonical-prefixes %s 2>&1 -### \
 // RUN:        -resource-dir=%S/Inputs/resource_dir \
 // RUN:        -Wl,-bnocdtors \
 // RUN:        -target powerpc-ibm-aix7.1.0.0 \
 // RUN:        --sysroot %S/Inputs/aix_ppc_tree \
 // RUN:   | FileCheck --check-prefix=CHECK-LD32-CXX-ARG-ORDER %s
 // CHECK-LD32-CXX-ARG-ORDER:     {{.*}}clang{{.*}}" "-cc1" "-triple" "powerpc-ibm-aix7.1.0.0"
 // CHECK-LD32-CXX-ARG-ORDER:     "-resource-dir" "[[RESOURCE_DIR:[^"]+]]"
 // CHECK-LD32-CXX-ARG-ORDER:     "-isysroot" "[[SYSROOT:[^"]+]]"
 // CHECK-LD32-CXX-ARG-ORDER:     "{{.*}}ld{{(.exe)?}}"
 // CHECK-LD32-CXX-ARG-ORDER-NOT: "-bnso"
 // CHECK-LD32-CXX-ARG-ORDER:     "-b32"
 // CHECK-LD32-CXX-ARG-ORDER:     "-bpT:0x10000000" "-bpD:0x20000000"
 // CHECK-LD32-CXX-ARG-ORDER:     "[[SYSROOT]]/usr/lib{{/|\\\\}}crt0.o"
 // CHECK-LD32-CXX-ARG-ORDER:     "[[SYSROOT]]/usr/lib{{/|\\\\}}crti.o"
 // CHECK-LD32-CXX-ARG-ORDER:     "-bcdtors:all:0:s"
 // CHECK-LD32-CXX-ARG-ORDER:     "-bnocdtors"
 // CHECK-LD32-CXX-ARG-ORDER-NOT: "-bcdtors:all:0:s"
 // CHECK-LD32-CXX-ARG-ORDER:     "-lc++"
+// CHECK-LD32-CXX-ARG-ORDER:     "-lc++abi"
 // CHECK-LD32-CXX-ARG-ORDER:     "[[RESOURCE_DIR]]{{/|\\\\}}lib{{/|\\\\}}aix{{/|\\\\}}libclang_rt.builtins-powerpc.a"
+// CHECK-LD32-CXX-ARG-ORDER:     "-lunwind"
 // CHECK-LD32-CXX-ARG-ORDER:     "-lm"
 // CHECK-LD32-CXX-ARG-ORDER:     "-lc"
 
 // Check powerpc-ibm-aix7.1.0.0, 32-bit. lc++ and lc order.
 // RUN: %clangxx -no-canonical-prefixes %s 2>&1 -### \
 // RUN:        -resource-dir=%S/Inputs/resource_dir \
 // RUN:        -target powerpc-ibm-aix7.1.0.0 \
 // RUN:        --sysroot %S/Inputs/aix_ppc_tree \
 // RUN:   | FileCheck --check-prefix=CHECK-LD32-CXX-ARG-LCXX %s
 // CHECK-LD32-CXX-ARG-LCXX:     {{.*}}clang{{.*}}" "-cc1" "-triple" "powerpc-ibm-aix7.1.0.0"
 // CHECK-LD32-CXX-ARG-LCXX:     "-resource-dir" "[[RESOURCE_DIR:[^"]+]]"
 // CHECK-LD32-CXX-ARG-LCXX:     "-isysroot" "[[SYSROOT:[^"]+]]"
 // CHECK-LD32-CXX-ARG-LCXX:     "{{.*}}ld{{(.exe)?}}"
 // CHECK-LD32-CXX-ARG-LCXX:     "-b32"
 // CHECK-LD32-CXX-ARG-LCXX:     "-bpT:0x10000000" "-bpD:0x20000000"
 // CHECK-LD32-CXX-ARG-LCXX:     "[[SYSROOT]]/usr/lib{{/|\\\\}}crt0.o"
 // CHECK-LD32-CXX-ARG-LCXX:     "[[SYSROOT]]/usr/lib{{/|\\\\}}crti.o"
 // CHECK-LD32-CXX-ARG-LCXX:     "-lc++"
+// CHECK-LD32-CXX-ARG-LCXX:     "-lc++abi"
 // CHECK-LD32-CXX-ARG-LCXX:     "[[RESOURCE_DIR]]{{/|\\\\}}lib{{/|\\\\}}aix{{/|\\\\}}libclang_rt.builtins-powerpc.a"
+// CHECK-LD32-CXX-ARG-LCXX:     "-lunwind"
 // CHECK-LD32-CXX-ARG-LCXX:     "-lm"
 // CHECK-LD32-CXX-ARG-LCXX:     "-lc"
 
 // Check powerpc64-ibm-aix7.1.0.0, 64-bit. lc++ and lc order.
 // RUN: %clangxx -no-canonical-prefixes %s 2>&1 -### \
 // RUN:        -resource-dir=%S/Inputs/resource_dir \
 // RUN:        -target powerpc64-ibm-aix7.1.0.0 \
 // RUN:        --sysroot %S/Inputs/aix_ppc_tree \
 // RUN:   | FileCheck --check-prefix=CHECK-LD64-CXX-ARG-LCXX %s
 // CHECK-LD64-CXX-ARG-LCXX:     {{.*}}clang{{.*}}" "-cc1" "-triple" "powerpc64-ibm-aix7.1.0.0"
 // CHECK-LD64-CXX-ARG-LCXX:     "-resource-dir" "[[RESOURCE_DIR:[^"]+]]"
 // CHECK-LD64-CXX-ARG-LCXX:     "-isysroot" "[[SYSROOT:[^"]+]]"
 // CHECK-LD64-CXX-ARG-LCXX:     "{{.*}}ld{{(.exe)?}}"
 // CHECK-LD64-CXX-ARG-LCXX:     "-b64"
 // CHECK-LD64-CXX-ARG-LCXX:     "-bpT:0x100000000" "-bpD:0x110000000"
 // CHECK-LD64-CXX-ARG-LCXX:     "[[SYSROOT]]/usr/lib{{/|\\\\}}crt0_64.o"
 // CHECK-LD64-CXX-ARG-LCXX:     "[[SYSROOT]]/usr/lib{{/|\\\\}}crti_64.o"
 // CHECK-LD64-CXX-ARG-LCXX:     "-lc++"
+// CHECK-LD64-CXX-ARG-LCXX:     "-lc++abi"
 // CHECK-LD64-CXX-ARG-LCXX:     "[[RESOURCE_DIR]]{{/|\\\\}}lib{{/|\\\\}}aix{{/|\\\\}}libclang_rt.builtins-powerpc64.a"
+// CHECK-LD64-CXX-ARG-LCXX:     "-lunwind"
 // CHECK-LD64-CXX-ARG-LCXX:     "-lm"
 // CHECK-LD64-CXX-ARG-LCXX:     "-lc"
 
 // Check powerpc-ibm-aix7.1.0.0, 32-bit. -nodefaultlibs.
 // RUN: %clangxx -no-canonical-prefixes %s 2>&1 -### \
 // RUN:        -resource-dir=%S/Inputs/resource_dir \
 // RUN:        -nodefaultlibs \
 // RUN:        -target powerpc-ibm-aix7.1.0.0 \
 // RUN:        --sysroot %S/Inputs/aix_ppc_tree \
 // RUN:   | FileCheck --check-prefix=CHECK-LD32-NODEFLIB-LCXX %s
 // CHECK-LD32-NODEFLIB-LCXX:     {{.*}}clang{{.*}}" "-cc1" "-triple" "powerpc-ibm-aix7.1.0.0"
 // CHECK-LD32-NODEFLIB-LCXX:     "-resource-dir" "[[RESOURCE_DIR:[^"]+]]"
 // CHECK-LD32-NODEFLIB-LCXX:     "-isysroot" "[[SYSROOT:[^"]+]]"
 // CHECK-LD32-NODEFLIB-LCXX:     "{{.*}}ld{{(.exe)?}}"
 // CHECK-LD32-NODEFLIB-LCXX:     "-b32"
 // CHECK-LD32-NODEFLIB-LCXX:     "-bpT:0x10000000" "-bpD:0x20000000"
 // CHECK-LD32-NODEFLIB-LCXX:     "[[SYSROOT]]/usr/lib{{/|\\\\}}crt0.o"
 // CHECK-LD32-NODEFLIB-LCXX:     "[[SYSROOT]]/usr/lib{{/|\\\\}}crti.o"
 // CHECK-LD32-NODEFLIB-LCXX-NOT: "-lc++"
+// CHECK-LD32-NODEFLIB-LCXX-NOT: "-lc++abi"
 // CHECK-LD32-NODEFLIB-LCXX-NOT: "[[RESOURCE_DIR]]{{/|\\\\}}lib{{/|\\\\}}aix{{/|\\\\}}libclang_rt.builtins-powerpc.a"
+// CHECK-LD32-NODEFLIB-LCXX-NOT: "-lunwind"
 // CHECK-LD32-NODEFLIB-LCXX-NOT: "-lm"
 // CHECK-LD32-NODEFLIB-LCXX-NOT: "-lc"
 
 // Check powerpc64-ibm-aix7.1.0.0, 64-bit. -nodefaultlibs.
 // RUN: %clangxx -no-canonical-prefixes %s 2>&1 -### \
 // RUN:        -resource-dir=%S/Inputs/resource_dir \
 // RUN:        -nodefaultlibs \
 // RUN:        -target powerpc64-ibm-aix7.1.0.0 \
 // RUN:        --sysroot %S/Inputs/aix_ppc_tree \
 // RUN:   | FileCheck --check-prefix=CHECK-LD64-NODEFLIB-LCXX %s
 // CHECK-LD64-NODEFLIB-LCXX:     {{.*}}clang{{.*}}" "-cc1" "-triple" "powerpc64-ibm-aix7.1.0.0"
 // CHECK-LD64-NODEFLIB-LCXX:     "-resource-dir" "[[RESOURCE_DIR:[^"]+]]"
 // CHECK-LD64-NODEFLIB-LCXX:     "-isysroot" "[[SYSROOT:[^"]+]]"
 // CHECK-LD64-NODEFLIB-LCXX:     "{{.*}}ld{{(.exe)?}}"
 // CHECK-LD64-NODEFLIB-LCXX:     "-b64"
 // CHECK-LD64-NODEFLIB-LCXX:     "-bpT:0x100000000" "-bpD:0x110000000"
 // CHECK-LD64-NODEFLIB-LCXX:     "[[SYSROOT]]/usr/lib{{/|\\\\}}crt0_64.o"
 // CHECK-LD64-NODEFLIB-LCXX:     "[[SYSROOT]]/usr/lib{{/|\\\\}}crti_64.o"
 // CHECK-LD64-NODEFLIB-LCXX-NOT: "-lc++"
+// CHECK-LD64-NODEFLIB-LCXX-NOT: "-lc++abi"
 // CHECK-LD64-NODEFLIB-LCXX-NOT: "[[RESOURCE_DIR]]{{/|\\\\}}lib{{/|\\\\}}aix{{/|\\\\}}libclang_rt.builtins-powerpc64.a"
+// CHECK-LD64-NODEFLIB-LCXX-NOT: "-lunwind"
 // CHECK-LD64-NODEFLIB-LCXX-NOT: "-lm"
 // CHECK-LD64-NODEFLIB-LCXX-NOT: "-lc"
 
 // Check powerpc-ibm-aix7.1.0.0, 32-bit. -nostdlib.
 // RUN: %clangxx -no-canonical-prefixes %s 2>&1 -### \
 // RUN:        -resource-dir=%S/Inputs/resource_dir \
 // RUN:        -nostdlib \
 // RUN:        -target powerpc-ibm-aix7.1.0.0 \
 // RUN:        --sysroot %S/Inputs/aix_ppc_tree \
 // RUN:   | FileCheck --check-prefix=CHECK-LD32-NOSTDLIB-LCXX %s
 // CHECK-LD32-NOSTDLIB-LCXX:     {{.*}}clang{{.*}}" "-cc1" "-triple" "powerpc-ibm-aix7.1.0.0"
 // CHECK-LD32-NOSTDLIB-LCXX:     "-resource-dir" "[[RESOURCE_DIR:[^"]+]]"
 // CHECK-LD32-NOSTDLIB-LCXX:     "-isysroot" "[[SYSROOT:[^"]+]]"
 // CHECK-LD32-NOSTDLIB-LCXX:     "{{.*}}ld{{(.exe)?}}"
 // CHECK-LD32-NOSTDLIB-LCXX:     "-b32"
 // CHECK-LD32-NOSTDLIB-LCXX:     "-bpT:0x10000000" "-bpD:0x20000000"
 // CHECK-LD32-NOSTDLIB-LCXX-NOT: "[[SYSROOT]]/usr/lib{{/|\\\\}}crt0.o"
 // CHECK-LD32-NOSTDLIB-LCXX-NOT: "[[SYSROOT]]/usr/lib{{/|\\\\}}crti.o"
 // CHECK-LD32-NOSTDLIB-LCXX-NOT: "-lc++"
+// CHECK-LD32-NOSTDLIB-LCXX-NOT: "-lc++abi"
 // CHECK-LD32-NOSTDLIB-LCXX-NOT: "[[RESOURCE_DIR]]{{/|\\\\}}lib{{/|\\\\}}aix{{/|\\\\}}libclang_rt.builtins-powerpc.a"
+// CHECK-LD32-NOSTDLIB-LCXX-NOT: "-lunwind"
 // CHECK-LD32-NOSTDLIB-LCXX-NOT: "-lm"
 // CHECK-LD32-NOSTDLIB-LCXX-NOT: "-lc"
 
 // Check powerpc64-ibm-aix7.1.0.0, 64-bit. -nostdlib.
 // RUN: %clangxx -no-canonical-prefixes %s 2>&1 -### \
 // RUN:        -resource-dir=%S/Inputs/resource_dir \
 // RUN:        -nostdlib \
 // RUN:        -target powerpc64-ibm-aix7.1.0.0 \
 // RUN:        --sysroot %S/Inputs/aix_ppc_tree \
 // RUN:   | FileCheck --check-prefix=CHECK-LD64-NOSTDLIB-LCXX %s
 // CHECK-LD64-NOSTDLIB-LCXX:     {{.*}}clang{{.*}}" "-cc1" "-triple" "powerpc64-ibm-aix7.1.0.0"
 // CHECK-LD64-NOSTDLIB-LCXX:     "-resource-dir" "[[RESOURCE_DIR:[^"]+]]"
 // CHECK-LD64-NOSTDLIB-LCXX:     "-isysroot" "[[SYSROOT:[^"]+]]"
 // CHECK-LD64-NOSTDLIB-LCXX:     "{{.*}}ld{{(.exe)?}}"
 // CHECK-LD64-NOSTDLIB-LCXX:     "-b64"
 // CHECK-LD64-NOSTDLIB-LCXX:     "-bpT:0x100000000" "-bpD:0x110000000"
 // CHECK-LD64-NOSTDLIB-LCXX-NOT: "[[SYSROOT]]/usr/lib{{/|\\\\}}crt0_64.o"
 // CHECK-LD64-NOSTDLIB-LCXX-NOT: "[[SYSROOT]]/usr/lib{{/|\\\\}}crti_64.o"
 // CHECK-LD64-NOSTDLIB-LCXX-NOT: "-lc++"
+// CHECK-LD64-NOSTDLIB-LCXX-NOT: "-lc++abi"
 // CHECK-LD64-NOSTDLIB-LCXX-NOT: "[[RESOURCE_DIR]]{{/|\\\\}}lib{{/|\\\\}}aix{{/|\\\\}}libclang_rt.builtins-powerpc64.a"
+// CHECK-LD64-NOSTDLIB-LCXX-NOT: "-lunwind"
 // CHECK-LD64-NOSTDLIB-LCXX-NOT: "-lm"
 // CHECK-LD64-NOSTDLIB-LCXX-NOT: "-lc"
 
 // Check powerpc-ibm-aix7.1.0.0, 32-bit. -nostdlib++.
 // Note: crti is still linked for initialization/finalization functionality.
 // RUN: %clangxx -no-canonical-prefixes %s 2>&1 -### \
 // RUN:        -resource-dir=%S/Inputs/resource_dir \
 // RUN:        -nostdlib++ \
 // RUN:        -target powerpc-ibm-aix7.1.0.0 \
 // RUN:        --sysroot %S/Inputs/aix_ppc_tree \
 // RUN:   | FileCheck --check-prefix=CHECK-LD32-NOSTDLIBXX-LCXX %s
 // CHECK-LD32-NOSTDLIBXX-LCXX:     {{.*}}clang{{.*}}" "-cc1" "-triple" "powerpc-ibm-aix7.1.0.0"
 // CHECK-LD32-NOSTDLIBXX-LCXX:     "-resource-dir" "[[RESOURCE_DIR:[^"]+]]"
 // CHECK-LD32-NOSTDLIBXX-LCXX:     "-isysroot" "[[SYSROOT:[^"]+]]"
 // CHECK-LD32-NOSTDLIBXX-LCXX:     "{{.*}}ld{{(.exe)?}}"
 // CHECK-LD32-NOSTDLIBXX-LCXX:     "-b32"
 // CHECK-LD32-NOSTDLIBXX-LCXX:     "-bpT:0x10000000" "-bpD:0x20000000"
 // CHECK-LD32-NOSTDLIBXX-LCXX:     "[[SYSROOT]]/usr/lib{{/|\\\\}}crt0.o"
 // CHECK-LD32-NOSTDLIBXX-LCXX:     "[[SYSROOT]]/usr/lib{{/|\\\\}}crti.o"
 // CHECK-LD32-NOSTDLIBXX-LCXX-NOT: "-lc++"
+// CHECK-LD32-NOSTDLIBXX-LCXX-NOT: "-lc++abi"
 // CHECK-LD32-NOSTDLIBXX-LCXX:     "[[RESOURCE_DIR]]{{/|\\\\}}lib{{/|\\\\}}aix{{/|\\\\}}libclang_rt.builtins-powerpc.a"
+// CHECK-LD32-NOSTDLIBXX-LCXX:     "-lunwind"
 // CHECK-LD32-NOSTDLIBXX-LCXX:     "-lm"
 // CHECK-LD32-NOSTDLIBXX-LCXX:     "-lc"
 
 // Check powerpc64-ibm-aix7.1.0.0, 64-bit. -nostdlib++.
 // RUN: %clangxx -no-canonical-prefixes %s 2>&1 -### \
 // RUN:        -resource-dir=%S/Inputs/resource_dir \
 // RUN:        -nostdlib++ \
 // RUN:        -target powerpc64-ibm-aix7.1.0.0 \
 // RUN:        --sysroot %S/Inputs/aix_ppc_tree \
 // RUN:   | FileCheck --check-prefix=CHECK-LD64-NOSTDLIBXX-LCXX %s
 // CHECK-LD64-NOSTDLIBXX-LCXX:     {{.*}}clang{{.*}}" "-cc1" "-triple" "powerpc64-ibm-aix7.1.0.0"
 // CHECK-LD64-NOSTDLIBXX-LCXX:     "-resource-dir" "[[RESOURCE_DIR:[^"]+]]"
 // CHECK-LD64-NOSTDLIBXX-LCXX:     "-isysroot" "[[SYSROOT:[^"]+]]"
 // CHECK-LD64-NOSTDLIBXX-LCXX:     "{{.*}}ld{{(.exe)?}}"
 // CHECK-LD64-NOSTDLIBXX-LCXX:     "-b64"
 // CHECK-LD64-NOSTDLIBXX-LCXX:     "-bpT:0x100000000" "-bpD:0x110000000"
 // CHECK-LD64-NOSTDLIBXX-LCXX:     "[[SYSROOT]]/usr/lib{{/|\\\\}}crt0_64.o"
 // CHECK-LD64-NOSTDLIBXX-LCXX:     "[[SYSROOT]]/usr/lib{{/|\\\\}}crti_64.o"
 // CHECK-LD64-NOSTDLIBXX-LCXX-NOT: "-lc++"
+// CHECK-LD64-NOSTDLIBXX-LCXX-NOT: "-lc++abi"
 // CHECK-LD64-NOSTDLIBXX-LCXX:     "[[RESOURCE_DIR]]{{/|\\\\}}lib{{/|\\\\}}aix{{/|\\\\}}libclang_rt.builtins-powerpc64.a"
+// CHECK-LD64-NOSTDLIBXX-LCXX:     "-lunwind"
 // CHECK-LD64-NOSTDLIBXX-LCXX:     "-lm"
 // CHECK-LD64-NOSTDLIBXX-LCXX:     "-lc"
 
 // Check powerpc64-ibm-aix7.1.0.0, 32-bit. -nostartfiles.
 // RUN: %clangxx -no-canonical-prefixes %s 2>&1 -### \
 // RUN:        -resource-dir=%S/Inputs/resource_dir \
 // RUN:        -nostartfiles \
 // RUN:        -target powerpc-ibm-aix7.1.0.0 \
 // RUN:        --sysroot %S/Inputs/aix_ppc_tree \
 // RUN:   | FileCheck --check-prefix=CHECK-LD32-NOSTARTFILES-LCXX %s
 // CHECK-LD32-NOSTARTFILES-LCXX:     {{.*}}clang{{.*}}" "-cc1" "-triple" "powerpc-ibm-aix7.1.0.0"
 // CHECK-LD32-NOSTARTFILES-LCXX:     "-resource-dir" "[[RESOURCE_DIR:[^"]+]]"
 // CHECK-LD32-NOSTARTFILES-LCXX:     "-isysroot" "[[SYSROOT:[^"]+]]"
 // CHECK-LD32-NOSTARTFILES-LCXX:     "{{.*}}ld{{(.exe)?}}"
 // CHECK-LD32-NOSTARTFILES-LCXX:     "-b32"
 // CHECK-LD32-NOSTARTFILES-LCXX:     "-bpT:0x10000000" "-bpD:0x20000000"
 // CHECK-LD32-NOSTARTFILES-LCXX-NOT: "[[SYSROOT]]/usr/lib{{/|\\\\}}crt0.o"
 // CHECK-LD32-NOSTARTFILES-LCXX-NOT: "[[SYSROOT]]/usr/lib{{/|\\\\}}crti.o"
 // CHECK-LD32-NOSTARTFILES-LCXX:     "-lc++"
+// CHECK-LD32-NOSTARTFILES-LCXX:     "-lc++abi"
 // CHECK-LD32-NOSTARTFILES-LCXX:     "[[RESOURCE_DIR]]{{/|\\\\}}lib{{/|\\\\}}aix{{/|\\\\}}libclang_rt.builtins-powerpc.a"
+// CHECK-LD32-NOSTARTFILES-LCXX:     "-lunwind"
 // CHECK-LD32-NOSTARTFILES-LCXX:     "-lm"
 // CHECK-LD32-NOSTARTFILES-LCXX:     "-lc"
 
 // Check powerpc64-ibm-aix7.1.0.0, 64-bit. -nostartfiles.
 // RUN: %clangxx -no-canonical-prefixes %s 2>&1 -### \
 // RUN:        -resource-dir=%S/Inputs/resource_dir \
 // RUN:        -nostartfiles \
 // RUN:        -target powerpc-ibm-aix7.1.0.0 \
 // RUN:        --sysroot %S/Inputs/aix_ppc_tree \
 // RUN:   | FileCheck --check-prefix=CHECK-LD32-NOSTARTFILES-LCXX %s
 // CHECK-LD64-NOSTARTFILES-LCXX:     {{.*}}clang{{.*}}" "-cc1" "-triple" "powerpc64-ibm-aix7.1.0.0"
 // CHECK-LD64-NOSTARTFILES-LCXX:     "-resource-dir" "[[RESOURCE_DIR:[^"]+]]"
 // CHECK-LD64-NOSTARTFILES-LCXX:     "-isysroot" "[[SYSROOT:[^"]+]]"
 // CHECK-LD64-NOSTARTFILES-LCXX:     "{{.*}}ld{{(.exe)?}}"
 // CHECK-LD64-NOSTARTFILES-LCXX:     "-b64"
 // CHECK-LD64-NOSTARTFILES-LCXX:     "-bpT:0x100000000" "-bpD:0x110000000"
 // CHECK-LD64-NOSTARTFILES-LCXX-NOT: "[[SYSROOT]]/usr/lib{{/|\\\\}}crt0_64.o"
 // CHECK-LD64-NOSTARTFILES-LCXX-NOT: "[[SYSROOT]]/usr/lib{{/|\\\\}}crti_64.o"
 // CHECK-LD64-NOSTARTFILES-LCXX:     "-lc++"
+// CHECK-LD64-NOSTARTFILES-LCXX:     "-lc++abi"
 // CHECK-LD64-NOSTARTFILES-LCXX:     "[[RESOURCE_DIR]]{{/|\\\\}}lib{{/|\\\\}}aix{{/|\\\\}}libclang_rt.builtins-powerpc64.a"
+// CHECK-LD64-NOSTARTFILES-LCXX:     "-lunwind"
 // CHECK-LD64-NOSTARTFILES-LCXX:     "-lm"
 // CHECK-LD64-NOSTARTFILES-LCXX:     "-lc"
 
 // Check powerpc-ibm-aix7.1.0.0, 32-bit. -stdlib=libstdc++ invokes fatal error.
 // RUN: not --crash %clangxx -no-canonical-prefixes %s 2>&1 -### \
 // RUN:        -target powerpc-ibm-aix7.1.0.0 \
 // RUN:        -stdlib=libstdc++ \
 // RUN:        --sysroot %S/Inputs/aix_ppc_tree \

 // CHECK-LD32-SHARED:     "{{.*}}ld{{(.exe)?}}"
 // CHECK-LD32-SHARED:     "-bM:SRE"
 // CHECK-LD32-SHARED:     "-bnoentry"
 // CHECK-LD32-SHARED:     "-b32"
 // CHECK-LD32-SHARED:     "-bpT:0x10000000" "-bpD:0x20000000"
 // CHECK-LD32-SHARED-NOT: "[[SYSROOT]]/usr/lib{{/|\\\\}}crt0.o"
 // CHECK-LD32-SHARED-NOT: "[[SYSROOT]]/usr/lib{{/|\\\\}}crti.o"
 // CHECK-LD32-SHARED:     "-lc++"
+// CHECK-LD32-SHARED:     "-lc++abi"
 // CHECK-LD32-SHARED:     "[[RESOURCE_DIR]]{{/|\\\\}}lib{{/|\\\\}}aix{{/|\\\\}}libclang_rt.builtins-powerpc.a"
+// CHECK-LD32-SHARED:     "-lunwind"
 // CHECK-LD32-SHARED:     "-lm"
 // CHECK-LD32-SHARED:     "-lc"
 
 // Check powerpc64-ibm-aix7.1.0.0, 64-bit. -shared.
 // RUN: %clangxx -x c++ -no-canonical-prefixes %s 2>&1 -### \
 // RUN:        -resource-dir=%S/Inputs/resource_dir \
 // RUN:        -shared \
 // RUN:        -target powerpc64-ibm-aix7.1.0.0 \
 // RUN:        --sysroot %S/Inputs/aix_ppc_tree \
 // RUN:   | FileCheck --check-prefix=CHECK-LD64-SHARED %s
 // CHECK-LD64-SHARED:     {{.*}}clang{{.*}}" "-cc1" "-triple" "powerpc64-ibm-aix7.1.0.0"
 // CHECK-LD64-SHARED:     "-resource-dir" "[[RESOURCE_DIR:[^"]+]]"
 // CHECK-LD64-SHARED:     "-isysroot" "[[SYSROOT:[^"]+]]"
 // CHECK-LD64-SHARED:     "{{.*}}ld{{(.exe)?}}"
 // CHECK-LD64-SHARED:     "-bM:SRE"
 // CHECK-LD64-SHARED:     "-bnoentry"
 // CHECK-LD64-SHARED:     "-b64"
 // CHECK-LD64-SHARED:     "-bpT:0x100000000" "-bpD:0x110000000"
 // CHECK-LD64-SHARED-NOT: "[[SYSROOT]]/usr/lib{{/|\\\\}}crt0_64.o"
 // CHECK-LD64-SHARED-NOT: "[[SYSROOT]]/usr/lib{{/|\\\\}}crti_64.o"
 // CHECK-LD64-SHARED:     "-lc++"
+// CHECK-LD64-SHARED:     "-lc++abi"
 // CHECK-LD64-SHARED:     "[[RESOURCE_DIR]]{{/|\\\\}}lib{{/|\\\\}}aix{{/|\\\\}}libclang_rt.builtins-powerpc64.a"
+// CHECK-LD64-SHARED:     "-lunwind"
 // CHECK-LD64-SHARED:     "-lm"
 // CHECK-LD64-SHARED:     "-lc"