Support building builtins for powerpc

Author: alexcrichton

cmake/config-ix.cmake

@@ -205,6 +205,7 @@ elseif(NOT APPLE) # Supported archs for Apple platforms are generated later
   elseif("${COMPILER_RT_DEFAULT_TARGET_ARCH}" MATCHES "powerpc")
     TEST_BIG_ENDIAN(HOST_IS_BIG_ENDIAN)
     if(HOST_IS_BIG_ENDIAN)
+      test_target_arch(powerpc "" "-m32")
       test_target_arch(powerpc64 "" "-m64")
     else()
       test_target_arch(powerpc64le "" "-m64")
@@ -275,6 +276,7 @@ set(X86 i386 i686)
 set(X86_64 x86_64)
 set(MIPS32 mips mipsel)
 set(MIPS64 mips64 mips64el)
+set(PPC powerpc)
 set(PPC64 powerpc64 powerpc64le)
 set(WASM32 wasm32)
 set(WASM64 wasm64)
@@ -286,7 +288,7 @@ if(APPLE)
 endif()
 
 set(ALL_BUILTIN_SUPPORTED_ARCH ${X86} ${X86_64} ${ARM32} ${ARM64}
-    ${MIPS32} ${MIPS64} ${WASM32} ${WASM64})
+    ${MIPS32} ${MIPS64} ${WASM32} ${WASM64} ${PPC} ${PPC64})
 set(ALL_SANITIZER_COMMON_SUPPORTED_ARCH ${X86} ${X86_64} ${PPC64}
     ${ARM32} ${ARM64} ${MIPS32} ${MIPS64})
 set(ALL_ASAN_SUPPORTED_ARCH ${X86} ${X86_64} ${ARM32} ${ARM64}
@@ -379,13 +381,13 @@ if(APPLE)
 
   # We're setting the flag manually for each target OS
   set(CMAKE_OSX_DEPLOYMENT_TARGET "")
-  
+
   set(DARWIN_COMMON_CFLAGS -stdlib=libc++)
   set(DARWIN_COMMON_LINKFLAGS
     -stdlib=libc++
     -lc++
     -lc++abi)
-  
+
   check_linker_flag("-fapplication-extension" COMPILER_RT_HAS_APP_EXTENSION)
   if(COMPILER_RT_HAS_APP_EXTENSION)
     list(APPEND DARWIN_COMMON_LINKFLAGS "-fapplication-extension")
@@ -409,7 +411,7 @@ if(APPLE)
   # Figure out which arches to use for each OS
   darwin_get_toolchain_supported_archs(toolchain_arches)
   message(STATUS "Toolchain supported arches: ${toolchain_arches}")
-  
+
   if(NOT MACOSX_VERSION_MIN_FLAG)
     darwin_test_archs(osx
       DARWIN_osx_ARCHS

lib/builtins/CMakeLists.txt

@@ -361,6 +361,10 @@ set(mipsel_SOURCES ${mips_SOURCES})
 set(mips64_SOURCES ${mips_SOURCES})
 set(mips64el_SOURCES ${mips_SOURCES})
 
+set(powerpc_SOURCES ${GENERIC_SOURCES})
+set(powerpc64_SOURCES ${GENERIC_SOURCES})
+set(powerpc64le_SOURCES ${GENERIC_SOURCES})
+
 set(wasm32_SOURCES ${GENERIC_SOURCES})
 set(wasm64_SOURCES ${GENERIC_SOURCES})