From 78a1c45d83bf93025ceed25e933f6e51f8efdc37 Mon Sep 17 00:00:00 2001
From: "dragan.mladjenovic" <dragan.mladjenovic@rt-rk.com>
Date: Tue, 31 Jul 2018 08:41:56 +0200
Subject: [PATCH] run-pass/simd-intrinsic-float-minmax: Force use of qNaN on
 Mips

Workaround for #52746.
---
 src/test/run-pass/simd-intrinsic-float-minmax.rs | 7 +++++++
 1 file changed, 7 insertions(+)

diff --git a/src/test/run-pass/simd-intrinsic-float-minmax.rs b/src/test/run-pass/simd-intrinsic-float-minmax.rs
index 71c0139bb03..d35123e2235 100644
--- a/src/test/run-pass/simd-intrinsic-float-minmax.rs
+++ b/src/test/run-pass/simd-intrinsic-float-minmax.rs
@@ -29,7 +29,14 @@
 fn main() {
     let x = f32x4(1.0, 2.0, 3.0, 4.0);
     let y = f32x4(2.0, 1.0, 4.0, 3.0);
+
+    #[cfg(not(any(target_arch = "mips", target_arch = "mips64")))]
     let nan = ::std::f32::NAN;
+    // MIPS hardware treats f32::NAN as SNAN. Clear the signaling bit.
+    // See https://github.com/rust-lang/rust/issues/52746.
+    #[cfg(any(target_arch = "mips", target_arch = "mips64"))]
+    let nan = f32::from_bits(::std::f32::NAN.to_bits() - 1);
+
     let n = f32x4(nan, nan, nan, nan);
 
     unsafe {