From e2bc0ad3960769ba7a0f1223ac160b0d985fff35 Mon Sep 17 00:00:00 2001
From: Michael Forney <mforney@mforney.org>
Date: Sat, 27 Apr 2019 18:27:21 -0700
Subject: amd64: Use unordered compare for floating points

This prevents an FE_INVALID exception when comparing with NaN.
---
 amd64/emit.c | 4 ++--
 1 file changed, 2 insertions(+), 2 deletions(-)

(limited to 'amd64/emit.c')

diff --git a/amd64/emit.c b/amd64/emit.c
index 91223bd..d4bd54c 100644
--- a/amd64/emit.c
+++ b/amd64/emit.c
@@ -110,8 +110,8 @@ static struct {
 	{ Osign,   Kw, "cltd" },
 	{ Oxdiv,   Ki, "div%k %0" },
 	{ Oxidiv,  Ki, "idiv%k %0" },
-	{ Oxcmp,   Ks, "comiss %S0, %S1" },
-	{ Oxcmp,   Kd, "comisd %D0, %D1" },
+	{ Oxcmp,   Ks, "ucomiss %S0, %S1" },
+	{ Oxcmp,   Kd, "ucomisd %D0, %D1" },
 	{ Oxcmp,   Ki, "cmp%k %0, %1" },
 	{ Oxtest,  Ki, "test%k %0, %1" },
 #define X(c, s) \
-- 
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