From: Anatol Belski <ab@php.net>
Date: Fri, 16 Feb 2018 15:51:11 +0000 (+0100)
Subject: Handle special case when SSE only requested for 32-bit build
X-Git-Tag: php-7.3.0alpha1~396
X-Git-Url: https://granicus.if.org/sourcecode?a=commitdiff_plain;h=a5e532f729b1d5c4c05f10fdeef7e7e6dff1bae8;p=php

Handle special case when SSE only requested for 32-bit build
---

diff --git a/win32/build/confutils.js b/win32/build/confutils.js
index 2115078bea..1a3ecf041b 100644
--- a/win32/build/confutils.js
+++ b/win32/build/confutils.js
@@ -3270,6 +3270,17 @@ function toolset_setup_intrinsic_cflags()
 					}
 				}
 			}
+			if (!X64) {
+				/* SSE2 is currently the default on 32-bit. It could change later,
+					for now no need to pass it. But, if SSE only was chosen,
+					/arch:SSE is required. */
+				if ("sse" == scale[j]) {
+					ADD_FLAG("CFLAGS","/arch:SSE");
+				}
+			}
+			/* There is no explicit way to enable intrinsics between SSE3 and SSE4.2.
+				The declared macros therefore won't affect the code generation,
+				but will enable the guarded code parts. */
 			if ("avx2" == scale[j]) {
 				ADD_FLAG("CFLAGS","/arch:AVX2");
 				j -= 2;