[PATCH] [sanitizer][MIPS] Add --target flag for MIPS32

[Sagar Thakur]

I am able to give multiple flags to `test_target_arch` function.
But with this the tests under AddressSanitizer-mips64-linux don't get the flags properly.
Since cmake list elements are glued with a semicolon, this semicolon gets inserted in between the two mips flags which divides the compile command into two parts. Therefore I have replaced this semicolon in `get_target_flags_for_arch` function with a tab.


REPOSITORY
  rL LLVM

http://reviews.llvm.org/D9249

Files:
  cmake/config-ix.cmake

Index: cmake/config-ix.cmake
===================================================================
--- cmake/config-ix.cmake
+++ cmake/config-ix.cmake
@@ -184,11 +184,11 @@
     # FIXME: Ideally, we would build the N32 library too.
     if("${COMPILER_RT_TEST_TARGET_ARCH}" MATCHES "mipsel|mips64el")
       # regex for mipsel, mips64el
-      test_target_arch(mipsel "" "-mips32r2")
-      test_target_arch(mips64el "" "-mips64r2 -mabi=n64")
+      test_target_arch(mipsel "" "-mips32r2" "--target=mipsel-linux-gnu")
+      test_target_arch(mips64el "" "-mips64r2" "-mabi=n64")
     else()
-      test_target_arch(mips "" "-mips32r2")
-      test_target_arch(mips64 "" "-mips64r2 -mabi=n64")
+      test_target_arch(mips "" "-mips32r2" "--target=mips-linux-gnu")
+      test_target_arch(mips64 "" "-mips64r2" "-mabi=n64")
     endif()
   elseif("${COMPILER_RT_TEST_TARGET_ARCH}" MATCHES "arm")
     test_target_arch(arm "" "-march=armv7-a")
@@ -219,6 +219,7 @@
   if(ARCH_INDEX EQUAL -1)
     message(FATAL_ERROR "Unsupported architecture: ${arch}")
   else()
+    string(REPLACE ";" "\t" TARGET_${arch}_CFLAGS "${TARGET_${arch}_CFLAGS}")
     set(${out_var} ${TARGET_${arch}_CFLAGS} PARENT_SCOPE)
   endif()
 endfunction()

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