From 5574cee0e3fd0e1e9266f2da9e41da97ffe80a6b Mon Sep 17 00:00:00 2001
From: Alex Crichton <alex@alexcrichton.com>
Date: Mon, 6 Jan 2025 09:51:46 -0800
Subject: [PATCH] Fix fma test on MinGW

prtest:full
---
 crates/math/src/lib.rs | 4 +++-
 1 file changed, 3 insertions(+), 1 deletion(-)

diff --git a/crates/math/src/lib.rs b/crates/math/src/lib.rs
index fee95bc10af3..ae305cd9df61 100644
--- a/crates/math/src/lib.rs
+++ b/crates/math/src/lib.rs
@@ -272,8 +272,10 @@ impl WasmFloat for f64 {
     }
     #[inline]
     fn mul_add(self, b: f64, c: f64) -> f64 {
+        // The MinGW implementation of `fma` differs from other platforms, so
+        // favor `libm` there instead.
         #[cfg(feature = "std")]
-        if true {
+        if !(cfg!(windows) && cfg!(target_env = "gnu")) {
             return self.mul_add(b, c);
         }
         libm::fma(self, b, c)