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

paulmon · zooba · commit ff6bb0aa9525 · 2019-06-12T11:08:40.000-07:00
diff --git 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)

Original file line number	Diff line number	Diff line change
`@@ -55,6 +55,10 @@ _Py_c_prod(Py_complex a, Py_complex b)`
`55`	`55`	`return r;`
`56`	`56`	`}`
`57`	`57`
	`58`	`+/* Avoid bad optimization on Windows ARM64 until the compiler is fixed */`
	`59`	`+#ifdef _M_ARM64`
	`60`	`+#pragma optimize("", off)`
	`61`	`+#endif`
`58`	`62`	`Py_complex`
`59`	`63`	`_Py_c_quot(Py_complex a, Py_complex b)`
`60`	`64`	`{`
`@@ -112,6 +116,9 @@ _Py_c_quot(Py_complex a, Py_complex b)`
`112`	`116`	`}`
`113`	`117`	`return r;`
`114`	`118`	`}`
	`119`	`+#ifdef _M_ARM64`
	`120`	`+#pragma optimize("", on)`
	`121`	`+#endif`
`115`	`122`
`116`	`123`	`Py_complex`
`117`	`124`	`_Py_c_pow(Py_complex a, Py_complex b)`