__uint128_t is indeed an unsigned integer type. Fixes PR5435.

git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@86561 91177308-0d34-0410-b5e6-96231b3b80d8
diff --git a/test/Sema/128bitint.c b/test/Sema/128bitint.c
index 2a18d90..b97238d 100644
--- a/test/Sema/128bitint.c
+++ b/test/Sema/128bitint.c
@@ -4,3 +4,6 @@
 
 int a[((i128)-1 ^ (i128)-2) == 1 ? 1 : -1];
 int a[(u128)-1 > 1LL ? 1 : -1];
+
+// PR5435
+__uint128_t b = (__uint128_t)-1;