From: Paul Monson <paulmon@users.noreply.github.com>
Date: Wed, 12 Jun 2019 18:08:40 +0000 (-0700)
Subject: bpo-37236: pragma optimize off for _Py_c_quot on Windows arm64 (GH-13983)
X-Git-Url: https://granicus.if.org/sourcecode?a=commitdiff_plain;h=ff6bb0aa95259413f359d42410526ff0b4dccfb7;p=python

bpo-37236: pragma optimize off for _Py_c_quot on Windows arm64 (GH-13983)
---

diff --git a/Objects/complexobject.c b/Objects/complexobject.c
index f78c0fdf78..a49da40184 100644
--- a/Objects/complexobject.c
+++ b/Objects/complexobject.c
@@ -55,6 +55,10 @@ _Py_c_prod(Py_complex a, Py_complex b)
     return r;
 }
 
+/* Avoid bad optimization on Windows ARM64 until the compiler is fixed */
+#ifdef _M_ARM64
+#pragma optimize("", off)
+#endif
 Py_complex
 _Py_c_quot(Py_complex a, Py_complex b)
 {
@@ -112,6 +116,9 @@ _Py_c_quot(Py_complex a, Py_complex b)
     }
     return r;
 }
+#ifdef _M_ARM64
+#pragma optimize("", on)
+#endif
 
 Py_complex
 _Py_c_pow(Py_complex a, Py_complex b)