Remove ASSUME_ALIGNED

It's become a liability with C++ since it returns void* instead of the input
pointer type, and it doesn't seem to help optimizations anyway (auto-
vectorization still produces unaligned loads and stores).

1 files changed, 0 insertions, 13 deletions

diff --git a/CMakeLists.txt b/CMakeLists.txt
index cca21465..d4c48fcd 100644
--- a/CMakeLists.txt
+++ b/CMakeLists.txt
@@ -445,19 +445,6 @@ ELSE()
     SET(CMAKE_REQUIRED_FLAGS "${OLD_REQUIRED_FLAGS}")
 ENDIF()
 
-CHECK_C_SOURCE_COMPILES("
-int main()
-{
-    float *ptr;
-    ptr = __builtin_assume_aligned(ptr, 16);
-    return 0;
-}" HAVE___BUILTIN_ASSUME_ALIGNED)
-IF(HAVE___BUILTIN_ASSUME_ALIGNED)
-    SET(ASSUME_ALIGNED_DECL "__builtin_assume_aligned(x, y)")
-ELSE()
-    SET(ASSUME_ALIGNED_DECL "(x)")
-ENDIF()
-
 SET(SSE_SWITCH "")
 SET(SSE2_SWITCH "")
 SET(SSE3_SWITCH "")