From df93fe46e5d15457092eda3f702b2c57be274a2f Mon Sep 17 00:00:00 2001
From: Kuba Mracek <mracek@apple.com>
Date: Thu, 28 Jun 2018 16:43:43 +0000
Subject: [PATCH] Skip building TSan on platforms where there are no 64-bit
 architectures.

llvm-svn: 335873
---
 compiler-rt/cmake/config-ix.cmake | 6 +++++-
 1 file changed, 5 insertions(+), 1 deletion(-)

diff --git a/compiler-rt/cmake/config-ix.cmake b/compiler-rt/cmake/config-ix.cmake
index 8cf607d0e20c..a118240737b5 100644
--- a/compiler-rt/cmake/config-ix.cmake
+++ b/compiler-rt/cmake/config-ix.cmake
@@ -371,7 +371,11 @@ if(APPLE)
         if(DARWIN_${platform}_ARCHS)
           list(APPEND SANITIZER_COMMON_SUPPORTED_OS ${platform})
           list(APPEND PROFILE_SUPPORTED_OS ${platform})
-          list(APPEND TSAN_SUPPORTED_OS ${platform})
+
+          list_intersect(DARWIN_${platform}_TSAN_ARCHS DARWIN_${platform}_ARCHS ALL_TSAN_SUPPORTED_ARCH)
+          if(DARWIN_${platform}_TSAN_ARCHS)
+            list(APPEND TSAN_SUPPORTED_OS ${platform})
+          endif()
         endif()
         foreach(arch ${DARWIN_${platform}_ARCHS})
           list(APPEND COMPILER_RT_SUPPORTED_ARCH ${arch})