parloops: Copy target and optimizations when creating a function clone

SVE simd clones require to be compiled with a SVE target enabled or the argument
types will not be created properly. To achieve this we need to copy
DECL_FUNCTION_SPECIFIC_TARGET from the original function declaration to the
clones.  I decided it was probably also a good idea to copy
DECL_FUNCTION_SPECIFIC_OPTIMIZATION in case the original function is meant to
be compiled with specific optimization options.

gcc/ChangeLog:

	* tree-parloops.cc (create_loop_fn): Copy specific target and
	optimization options to clone.

diff --git a/gcc/tree-parloops.cc b/gcc/tree-parloops.cc
index e495bbd65270bdf90bae2c4a2b52777522352a77..a35f3d5023b06e5ef96eb4222488fcb34dd7bd45 100644 (file)
--- a/gcc/tree-parloops.cc
+++ b/gcc/tree-parloops.cc
@@ -2203,6 +2203,11 @@ create_loop_fn (location_t loc)
   DECL_CONTEXT (t) = decl;
   TREE_USED (t) = 1;
   DECL_ARGUMENTS (decl) = t;
+  DECL_FUNCTION_SPECIFIC_TARGET (decl)
+    = DECL_FUNCTION_SPECIFIC_TARGET (act_cfun->decl);
+  DECL_FUNCTION_SPECIFIC_OPTIMIZATION (decl)
+    = DECL_FUNCTION_SPECIFIC_OPTIMIZATION (act_cfun->decl);
+
 
   allocate_struct_function (decl, false);