[libcxx] r342820 - Fix UB in SIMD tests.

[Eric Fiselier]

Author: ericwf
Date: Sat Sep 22 13:09:02 2018
New Revision: 342820

URL: http://llvm.org/viewvc/llvm-project?rev=342820&view=rev
Log:
Fix UB in SIMD tests.

One of the SIMD tests attempted to left shift a value by 42, which
is UB when the left hand side is a 32 bit integer type.

This patch adjusts the test to use the value 4 instead of 42.

Modified:
    libcxx/trunk/test/std/experimental/simd/simd.access/default.pass.cpp

Modified: libcxx/trunk/test/std/experimental/simd/simd.access/default.pass.cpp
URL: http://llvm.org/viewvc/llvm-project/libcxx/trunk/test/std/experimental/simd/simd.access/default.pass.cpp?rev=342820&r1=342819&r2=342820&view=diff
==============================================================================
--- libcxx/trunk/test/std/experimental/simd/simd.access/default.pass.cpp (original)
+++ libcxx/trunk/test/std/experimental/simd/simd.access/default.pass.cpp Sat Sep 22 13:09:02 2018
@@ -165,7 +165,7 @@ void test_access() {
     }
     {
       auto c = a;
-      (void)(a[0] + (c[0] <<= a[0]));
+      (void)(a[0] + (c[0] <<= b[0]));
     }
     {
       auto c = a;