[tsan] #undef one-letter macros

buildgo.sh puts most of sanitizer_common together in a single source
file. These single-letter macros end up affecting a lot of unrelated
code; #undef them as early as possible.

llvm-svn: 353902

1 files changed, 8 insertions, 0 deletions

diff --git a/compiler-rt/lib/tsan/rtl/tsan_md5.cc b/compiler-rt/lib/tsan/rtl/tsan_md5.cc
index 2a61dd7fb13..bfe0c17bae7 100644
--- a/compiler-rt/lib/tsan/rtl/tsan_md5.cc
+++ b/compiler-rt/lib/tsan/rtl/tsan_md5.cc
@@ -138,6 +138,14 @@ static const void *body(MD5_CTX *ctx, const void *data, ulong_t size) {
   return ptr;
 }
 
+#undef F
+#undef G
+#undef H
+#undef I
+#undef STEP
+#undef SET
+#undef GET
+
 void MD5_Init(MD5_CTX *ctx) {
   ctx->a = 0x67452301;
   ctx->b = 0xefcdab89;