Remove the -cxx-abi command-line flag.

This makes the C++ ABI depend entirely on the target: MS ABI for -win32 triples,
Itanium otherwise. It's no longer possible to do weird combinations.

To be able to run a test with a specific ABI without constraining it to a
specific triple, new substitutions are added to lit: %itanium_abi_triple and
%ms_abi_triple can be used to get the current target triple adjusted to the
desired ABI. For example, if the test suite is running with the i686-pc-win32
target, %itanium_abi_triple will expand to i686-pc-mingw32.

Differential Revision: http://llvm-reviews.chandlerc.com/D2545

llvm-svn: 199250
diff --git a/clang/test/CodeGenCXX/instr-profile.cpp b/clang/test/CodeGenCXX/instr-profile.cpp
index 6e33268..da9f6fb 100644
--- a/clang/test/CodeGenCXX/instr-profile.cpp
+++ b/clang/test/CodeGenCXX/instr-profile.cpp
@@ -7,11 +7,11 @@
 // FIXME: Don't seek bb labels, like "if.else"
 // REQUIRES: asserts
 
-// RUN: %clangxx %s -o - -emit-llvm -S -fprofile-instr-generate -Xclang -cxx-abi -Xclang itanium | FileCheck -check-prefix=PGOGEN %s
-// RUN: %clangxx %s -o - -emit-llvm -S -fprofile-instr-generate -Xclang -cxx-abi -Xclang itanium | FileCheck -check-prefix=PGOGEN-EXC %s
+// RUN: %clangxx %s -o - -emit-llvm -S -fprofile-instr-generate -target %itanium_abi_triple | FileCheck -check-prefix=PGOGEN %s
+// RUN: %clangxx %s -o - -emit-llvm -S -fprofile-instr-generate -target %itanium_abi_triple | FileCheck -check-prefix=PGOGEN-EXC %s
 
-// RUN: %clang %s -o - -emit-llvm -S -fprofile-instr-use=%S/Inputs/instr-profile.pgodata -Xclang -cxx-abi -Xclang itanium | FileCheck -check-prefix=PGOUSE %s
-// RUN: %clang %s -o - -emit-llvm -S -fprofile-instr-use=%S/Inputs/instr-profile.pgodata -Xclang -cxx-abi -Xclang itanium | FileCheck -check-prefix=PGOUSE-EXC %s
+// RUN: %clang %s -o - -emit-llvm -S -fprofile-instr-use=%S/Inputs/instr-profile.pgodata -target %itanium_abi_triple | FileCheck -check-prefix=PGOUSE %s
+// RUN: %clang %s -o - -emit-llvm -S -fprofile-instr-use=%S/Inputs/instr-profile.pgodata -target %itanium_abi_triple | FileCheck -check-prefix=PGOUSE-EXC %s
 
 // PGOGEN: @[[THC:__llvm_pgo_ctr[0-9]*]] = private global [11 x i64] zeroinitializer
 // PGOGEN-EXC: @[[THC:__llvm_pgo_ctr[0-9]*]] = private global [11 x i64] zeroinitializer