Fix some files that got left behind in early changeset to unnamed unions fix. Credit to Roman Divacky.

git-svn-id: https://llvm.org/svn/llvm-project/compiler-rt/trunk@80913 91177308-0d34-0410-b5e6-96231b3b80d8
diff --git a/lib/fixunsxfti.c b/lib/fixunsxfti.c
index 96c7c48..d0bd512 100644
--- a/lib/fixunsxfti.c
+++ b/lib/fixunsxfti.c
@@ -35,8 +35,8 @@
 {
     long_double_bits fb;
     fb.f = a;
-    int e = (fb.u.high.low & 0x00007FFF) - 16383;
-    if (e < 0 || (fb.u.high.low & 0x00008000))
+    int e = (fb.u.high.s.low & 0x00007FFF) - 16383;
+    if (e < 0 || (fb.u.high.s.low & 0x00008000))
         return 0;
     tu_int r = fb.u.low.all;
     if (e > 63)