Enable compiler-rt on SPARC

This patch enables compiler-rt on SPARC targets. Most of the changes are straightforward:

- Add 32 and 64-bit sparc to compiler-rt

- lib/builtins/fp_lib.h needed to check if the int128_t and uint128_t types exist (which they don't on sparc)

There's one issue of note: many asan tests fail to compile on Solaris/SPARC:

fatal error: error in backend: Function "_ZN7testing8internal16BoolFromGTestEnvEPKcb": over-aligned dynamic alloca not supported.

Therefore, while asan is still built, both asan and ubsan-with-asan testing is disabled. The
goal is to check if asan keeps compiling on Solaris/SPARC. This serves asan in gcc,
which doesn't have the problem above and works just fine.

With this patch, sparcv9-sun-solaris2.11 test results are pretty good:

Failing Tests (9):
    Builtins-sparc-sunos :: divtc3_test.c
    Builtins-sparcv9-sunos :: compiler_rt_logbl_test.c
    Builtins-sparcv9-sunos :: divtc3_test.c
[...]
    UBSan-Standalone-sparc :: TestCases/TypeCheck/misaligned.cpp
    UBSan-Standalone-sparcv9 :: TestCases/TypeCheck/misaligned.cpp

The builtin failures are due to Bugs 42493 and 42496. The tree contained a few additonal
patches either currently in review or about to be submitted.

Tested on sparcv9-sun-solaris2.11.

Differential Revision: https://reviews.llvm.org/D40943


git-svn-id: https://llvm.org/svn/llvm-project/compiler-rt/trunk@365880 91177308-0d34-0410-b5e6-96231b3b80d8

2 files changed, 7 insertions, 5 deletions

diff --git a/test/asan/CMakeLists.txt b/test/asan/CMakeLists.txt
index c5ae2870b..1892c8818 100644
--- a/test/asan/CMakeLists.txt
+++ b/test/asan/CMakeLists.txt
@@ -18,9 +18,9 @@ if (SHADOW_MAPPING_UNRELIABLE)
 endif()
 
 macro(get_bits_for_arch arch bits)
-  if (${arch} MATCHES "x86_64|powerpc64|powerpc64le|aarch64|arm64|mips64|mips64el|s390x")
+  if (${arch} MATCHES "x86_64|powerpc64|powerpc64le|aarch64|arm64|mips64|mips64el|s390x|sparcv9")
     set(${bits} 64)
-  elseif (${arch} MATCHES "i386|arm|mips|mipsel")
+  elseif (${arch} MATCHES "i386|arm|mips|mipsel|sparc")
     set(${bits} 32)
   else()
     message(FATAL_ERROR "Unknown target architecture: ${arch}")
@@ -40,6 +40,7 @@ set(ASAN_TEST_ARCH ${ASAN_SUPPORTED_ARCH})
 if(APPLE)
   darwin_filter_host_archs(ASAN_SUPPORTED_ARCH ASAN_TEST_ARCH)
 endif()
+list(REMOVE_ITEM ASAN_TEST_ARCH sparc sparcv9)
 if(OS_NAME MATCHES "SunOS")
   list(REMOVE_ITEM ASAN_TEST_ARCH x86_64)
 endif()
diff --git a/test/ubsan/CMakeLists.txt b/test/ubsan/CMakeLists.txt
index 542ca5533..ee7032a91 100644
--- a/test/ubsan/CMakeLists.txt
+++ b/test/ubsan/CMakeLists.txt
@@ -46,10 +46,11 @@ foreach(arch ${UBSAN_TEST_ARCH})
 
   if(COMPILER_RT_HAS_ASAN AND ";${ASAN_SUPPORTED_ARCH};" MATCHES ";${arch};")
     # TODO(wwchrome): Re-enable ubsan for asan win 64-bit when ready.
-    # Disable ubsan with AddressSanitizer tests for Windows 64-bit and
-    # 64-bit Solaris/x86.
+    # Disable ubsan with AddressSanitizer tests for Windows 64-bit,
+    # 64-bit Solaris/x86, and SPARC.
     if((NOT (OS_NAME MATCHES "Windows" AND CMAKE_SIZEOF_VOID_P EQUAL 8)) AND
-       (NOT (OS_NAME MATCHES "SunOS" AND ${arch} MATCHES x86_64)))
+       (NOT (OS_NAME MATCHES "SunOS" AND ${arch} MATCHES x86_64)) AND
+       (NOT ${arch} MATCHES sparc))
       add_ubsan_testsuites("AddressSanitizer" asan ${arch})
     endif()
   endif()