From: mayeut <mayeut@users.noreply.github.com>
Date: Mon, 9 Apr 2018 22:02:57 +0000 (+0200)
Subject: jsimd_can_encode_mcu_AC_*(): Remove useless checks
X-Git-Tag: 2.0.0~25
X-Git-Url: https://granicus.if.org/sourcecode?a=commitdiff_plain;h=269e84c971067f6228be9c720b405efa0fdf3d6c;p=libjpeg-turbo

jsimd_can_encode_mcu_AC_*(): Remove useless checks

These were necessary for the first iteration of the feature (see #46),
which provided a different C front end for the SIMD version of the
function.  The final version of the feature uses a common C front end
for both SIMD and non-SIMD implementations, so these checks are no
longer necessary.

Closes #231
---

diff --git a/simd/i386/jsimd.c b/simd/i386/jsimd.c
index 0b5a410..563949a 100644
--- a/simd/i386/jsimd.c
+++ b/simd/i386/jsimd.c
@@ -1210,15 +1210,10 @@ jsimd_can_encode_mcu_AC_first_prepare(void)
     return 0;
   if (SIZEOF_SIZE_T != 4)
     return 0;
-  if (!(simd_support & JSIMD_SSE2))
-    return 0;
-#if defined(HAVE_BUILTIN_CTZL)
-  return 1;
-#elif defined(HAVE_BITSCANFORWARD)
-  return 1;
-#else
+  if (simd_support & JSIMD_SSE2)
+    return 1;
+
   return 0;
-#endif
 }
 
 GLOBAL(void)
@@ -1241,15 +1236,10 @@ jsimd_can_encode_mcu_AC_refine_prepare(void)
     return 0;
   if (SIZEOF_SIZE_T != 4)
     return 0;
-  if (!(simd_support & JSIMD_SSE2))
-    return 0;
-#if defined(HAVE_BUILTIN_CTZL)
-  return 1;
-#elif defined(HAVE_BITSCANFORWARD)
-  return 1;
-#else
+  if (simd_support & JSIMD_SSE2)
+    return 1;
+
   return 0;
-#endif
 }
 
 GLOBAL(int)
diff --git a/simd/x86_64/jsimd.c b/simd/x86_64/jsimd.c
index 7927875..1e5698b 100644
--- a/simd/x86_64/jsimd.c
+++ b/simd/x86_64/jsimd.c
@@ -1033,15 +1033,10 @@ jsimd_can_encode_mcu_AC_first_prepare(void)
     return 0;
   if (SIZEOF_SIZE_T != 8)
     return 0;
-  if (!(simd_support & JSIMD_SSE2))
-    return 0;
-#if defined(HAVE_BUILTIN_CTZL)
-  return 1;
-#elif defined(HAVE_BITSCANFORWARD64)
-  return 1;
-#else
+  if (simd_support & JSIMD_SSE2)
+    return 1;
+
   return 0;
-#endif
 }
 
 GLOBAL(void)
@@ -1064,15 +1059,10 @@ jsimd_can_encode_mcu_AC_refine_prepare(void)
     return 0;
   if (SIZEOF_SIZE_T != 8)
     return 0;
-  if (!(simd_support & JSIMD_SSE2))
-    return 0;
-#if defined(HAVE_BUILTIN_CTZL)
-  return 1;
-#elif defined(HAVE_BITSCANFORWARD64)
-  return 1;
-#else
+  if (simd_support & JSIMD_SSE2)
+    return 1;
+
   return 0;
-#endif
 }
 
 GLOBAL(int)