From 3da1400d07e473463df86668e1e50da8b02618fa Mon Sep 17 00:00:00 2001
From: dim <dim@FreeBSD.org>
Date: Sun, 6 Sep 2015 18:41:23 +0000
Subject: Import compiler-rt 3.7.0 release (r246257).

---
 lib/builtins/fp_extend_impl.inc | 4 +++-
 1 file changed, 3 insertions(+), 1 deletion(-)

(limited to 'lib/builtins/fp_extend_impl.inc')

diff --git a/lib/builtins/fp_extend_impl.inc b/lib/builtins/fp_extend_impl.inc
index f6953ff..edcfa8d 100644
--- a/lib/builtins/fp_extend_impl.inc
+++ b/lib/builtins/fp_extend_impl.inc
@@ -66,7 +66,9 @@ static inline dst_t __extendXfYf2__(src_t a) {
     const src_rep_t sign = aRep & srcSignMask;
     dst_rep_t absResult;
 
-    if (aAbs - srcMinNormal < srcInfinity - srcMinNormal) {
+    // If sizeof(src_rep_t) < sizeof(int), the subtraction result is promoted
+    // to (signed) int.  To avoid that, explicitly cast to src_rep_t.
+    if ((src_rep_t)(aAbs - srcMinNormal) < srcInfinity - srcMinNormal) {
         // a is a normal number.
         // Extend to the destination type by shifting the significand and
         // exponent into the proper position and rebiasing the exponent.
-- 
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