Revert of Clean up SSSE3 and SSE4 stubs. (patchset #1 id:1 of https://codereview.chromium.org/1810183003/ )

Reason for revert:
I've just had a better idea about how to fix this.  Let's revert while I work on it.

Original issue's description:
> Clean up SSSE3 and SSE4 stubs.
>
> We added these stubs to work around OpenBSD's old compiler, which had
> support for SSE2 but not SSSE3 or SSE4.
>
> We now already have other unstubbed files that require SSSE3 and SSE4 compiler
> support.  All the compilers we support have SSSE3 and SSE4 support, and all the
> way up to at least AVX2.
>
> (Requiring C++11 has had some nice ripple effects...)
>
>
> And, <immintrin.h> is already auto-included for these files, so no need for smmintrin or tmmintrin.
>
> BUG=skia:
> GOLD_TRYBOT_URL= https://gold.skia.org/search2?unt=true&query=source_type%3Dgm&master=false&issue=1810183003
> CQ_EXTRA_TRYBOTS=client.skia:Test-Ubuntu-GCC-GCE-CPU-AVX2-x86_64-Release-SKNX_NO_SIMD-Trybot
>
> Committed: https://skia.googlesource.com/skia/+/2b1b40e11afc41452b4d2f74cdebb1b6e6f7cc96

TBR=djsollen@google.com,mtklein@chromium.org
# Not skipping CQ checks because original CL landed more than 1 days ago.
BUG=skia:

Review URL: https://codereview.chromium.org/1819223003

1 files changed, 36 insertions, 0 deletions

diff --git a/src/opts/SkBitmapProcState_opts_SSSE3.cpp b/src/opts/SkBitmapProcState_opts_SSSE3.cpp
index 07b3171c6a..17d7da931a 100644
--- a/src/opts/SkBitmapProcState_opts_SSSE3.cpp
+++ b/src/opts/SkBitmapProcState_opts_SSSE3.cpp
@@ -10,6 +10,14 @@
 #include "SkPaint.h"
 #include "SkUtils.h"
 
+/* With the exception of the compilers that don't support it, we always build the
+ * SSSE3 functions and enable the caller to determine SSSE3 support.  However for
+ * compilers that do not support SSSE3 we provide a stub implementation.
+ */
+#if SK_CPU_SSE_LEVEL >= SK_CPU_SSE_LEVEL_SSSE3
+
+#include <tmmintrin.h>  // SSSE3
+
 // adding anonymous namespace seemed to force gcc to inline directly the
 // instantiation, instead of creating the functions
 // S32_generic_D32_filter_DX_SSSE3<true> and
@@ -723,3 +731,31 @@ void S32_alpha_D32_filter_DXDY_SSSE3(const SkBitmapProcState& s,
                                      int count, uint32_t* colors) {
     S32_generic_D32_filter_DXDY_SSSE3<true>(s, xy, count, colors);
 }
+
+#else // SK_CPU_SSE_LEVEL >= SK_CPU_SSE_LEVEL_SSSE3
+
+void S32_opaque_D32_filter_DX_SSSE3(const SkBitmapProcState& s,
+                                    const uint32_t* xy,
+                                    int count, uint32_t* colors) {
+    sk_throw();
+}
+
+void S32_alpha_D32_filter_DX_SSSE3(const SkBitmapProcState& s,
+                                   const uint32_t* xy,
+                                   int count, uint32_t* colors) {
+    sk_throw();
+}
+
+void S32_opaque_D32_filter_DXDY_SSSE3(const SkBitmapProcState& s,
+                                      const uint32_t* xy,
+                                      int count, uint32_t* colors) {
+    sk_throw();
+}
+
+void S32_alpha_D32_filter_DXDY_SSSE3(const SkBitmapProcState& s,
+                                     const uint32_t* xy,
+                                     int count, uint32_t* colors) {
+    sk_throw();
+}
+
+#endif