From 17ee3b4b74de1aa51b9c02b8fc2378a99d12a110 Mon Sep 17 00:00:00 2001
From: Evgeniy Stepanov <eugeni.stepanov@gmail.com>
Date: Tue, 12 Mar 2019 00:19:09 +0000
Subject: [PATCH] [msan] Fix BMI2 detection in msan tests.

llvm-svn: 355885
---
 compiler-rt/lib/msan/tests/msan_test.cc | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/compiler-rt/lib/msan/tests/msan_test.cc b/compiler-rt/lib/msan/tests/msan_test.cc
index 8d5ee78..8b38fc3 100644
--- a/compiler-rt/lib/msan/tests/msan_test.cc
+++ b/compiler-rt/lib/msan/tests/msan_test.cc
@@ -4650,7 +4650,7 @@ static bool HaveBmi() {
   U4 a = 0, b = 0, c = 0, d = 0;
   asm("cpuid\n\t" : "=a"(a), "=D"(b), "=c"(c), "=d"(d) : "a"(7));
   const U4 kBmi12Mask = (1U<<3) | (1U<<8);
-  return b | kBmi12Mask;
+  return b & kBmi12Mask;
 }
 
 __attribute__((target("bmi,bmi2")))
-- 
2.7.4