force no SSE on iOS simulator

include/core/SkPreConfig.h

 /*
  * Copyright 2006 The Android Open Source Project
  *
  * Use of this source code is governed by a BSD-style license that can be
  * found in the LICENSE file.
  */
 
 // IWYU pragma: private, include "SkTypes.h"
 
 #ifndef SkPreConfig_DEFINED
@@ skipping 100 matching lines @@
 
 #define SK_CPU_SSE_LEVEL_SSE1     10
 #define SK_CPU_SSE_LEVEL_SSE2     20
 #define SK_CPU_SSE_LEVEL_SSE3     30
 #define SK_CPU_SSE_LEVEL_SSSE3    31
 #define SK_CPU_SSE_LEVEL_SSE41    41
 #define SK_CPU_SSE_LEVEL_SSE42    42
 #define SK_CPU_SSE_LEVEL_AVX      51
 #define SK_CPU_SSE_LEVEL_AVX2     52
 
+#ifdef SK_BUILD_FOR_IOS
+    #define SK_CPU_SSE_LEVEL 0  // We're tired of fighting with opts/ and iOS simulator.
+#endif
+
 // Are we in GCC?
 #ifndef SK_CPU_SSE_LEVEL
     // These checks must be done in descending order to ensure we set the highest
     // available SSE level.
     #if defined(__AVX2__)
         #define SK_CPU_SSE_LEVEL    SK_CPU_SSE_LEVEL_AVX2
     #elif defined(__AVX__)
         #define SK_CPU_SSE_LEVEL    SK_CPU_SSE_LEVEL_AVX
     #elif defined(__SSE4_2__)
         #define SK_CPU_SSE_LEVEL    SK_CPU_SSE_LEVEL_SSE42
@@ skipping 124 matching lines @@
  *
  * NOTE: Clang/ARM (r161757) does not support the 'optimize' attribute.
  */
 #if SK_HAS_ATTRIBUTE(optimize)
 #   define SK_ATTRIBUTE_OPTIMIZE_O1 __attribute__((optimize("O1")))
 #else
 #   define SK_ATTRIBUTE_OPTIMIZE_O1 /* nothing */
 #endif
 
 #endif