From: Steinar H. Gunderson <sgunderson@bigfoot.com>
Date: Thu, 20 Mar 2014 21:59:59 +0000 (+0100)
Subject: Properly ignore the sign bit when comparing NaNs.
X-Git-Tag: 1.1~12^2~13
X-Git-Url: https://git.sesse.net/?p=movit;a=commitdiff_plain;h=a4d6aa37e11ac3674b0d5cab10437a14557050bb;hp=a5f32397f9c23fa8644fe195865d6c36685cf866

Properly ignore the sign bit when comparing NaNs.

Fixes fp16_test test failure on Clang.
---

diff --git a/fp16_test.cpp b/fp16_test.cpp
index 3deb74b..bb8b182 100644
--- a/fp16_test.cpp
+++ b/fp16_test.cpp
@@ -41,7 +41,8 @@ union fp32 {
 };
 
 TEST(FP16Test, NaN) {
-	EXPECT_EQ(0xfe00, fp64_to_fp16(0.0 / 0.0));
+	// Ignore the sign bit.
+	EXPECT_EQ(0x7e00, fp64_to_fp16(0.0 / 0.0) & 0x7fff);
 	EXPECT_TRUE(isnan(fp16_to_fp64(0xfe00)));
 
 	fp64 borderline_inf;