From fba0b65f727134e8d05c785b04b7b574f852d49e Mon Sep 17 00:00:00 2001
From: Harald van Dijk <harald@gigawatt.nl>
Date: Sun, 29 Nov 2020 13:52:28 +0000
Subject: [PATCH] [libc++] hash<long double>: adjust for x86-64 ILP32

x86-64 ILP32 mode (x32) uses 32-bit size_t, so share the code with ix86 to zero out padding bits, not with x86-64 LP64 mode.

Reviewed By: #libc, ldionne

Differential Revision: https://reviews.llvm.org/D91349
---
 libcxx/include/utility | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/libcxx/include/utility b/libcxx/include/utility
index 13489de..5c9e2b6 100644
--- a/libcxx/include/utility
+++ b/libcxx/include/utility
@@ -1506,7 +1506,7 @@ struct _LIBCPP_TEMPLATE_VIS hash<long double>
         // -0.0 and 0.0 should return same hash
         if (__v == 0.0L)
             return 0;
-#if defined(__i386__)
+#if defined(__i386__) || (defined(__x86_64__) && defined(__ILP32__))
         // Zero out padding bits
         union
         {
-- 
2.7.4