From: Adrian Bunk <bunk@debian.org>
Date: Tue, 3 Jul 2018 10:03:37 +0100
Subject: Fix sort_snans.js test on big endian

Bug-Debian: https://bugs.debian.org/878285
---
 js/src/tests/non262/TypedArray/sort_snans.js | 12 ++++++++++++
 1 file changed, 12 insertions(+)

diff --git a/js/src/tests/non262/TypedArray/sort_snans.js b/js/src/tests/non262/TypedArray/sort_snans.js
index 9e3ad16..df6cd52 100644
--- a/js/src/tests/non262/TypedArray/sort_snans.js
+++ b/js/src/tests/non262/TypedArray/sort_snans.js
@@ -34,6 +34,18 @@ function testFloat32NaNRanges(start, end) {
 // and startHi, startLow and endHi, endLow should be 32-bit integers which,
 // when combined (Hi + Low), form Float64 NaNs.
 function testFloat64NaNRanges(startHi, startLow, endHi, endLow) {
+
+    // Swap on big endian platforms
+    if ((new Uint32Array((new Uint8Array([1,2,3,4])).buffer))[0] === 0x01020304) {
+	let tmp = startHi;
+	startHi = startLow;
+	startLow = tmp;
+
+	tmp = endHi;
+	endHi = endLow;
+	endLow = tmp;
+    }
+
     let skipN = 10e6;
 
     let sampleSizeHi  = Math.floor((endHi - startHi)/skipN);