amd64: use x86_mode_E

ir/be/amd64/bearch_amd64.c

@@ -42,8 +42,6 @@ DEBUG_ONLY(static firm_dbg_module_t *dbg = NULL;)
 
 pmap *amd64_constants;
 
-ir_mode *amd64_mode_E;
-ir_type *amd64_type_E;
 ir_mode *amd64_mode_xmm;
 
 static ir_entity *amd64_get_frame_entity(const ir_node *node)
@@ -783,18 +781,12 @@ static void amd64_init_types(void)
 	ir_mode *const ptr_mode = new_reference_mode("p64", irma_twos_complement, 64, 64);
 	set_modeP(ptr_mode);
 
-	amd64_mode_E = new_float_mode("E", irma_x86_extended_float, 15, 64,
-	                              ir_overflow_indefinite);
-	amd64_type_E = new_type_primitive(amd64_mode_E);
-	set_type_size_bytes(amd64_type_E, 16);
-	set_type_alignment_bytes(amd64_type_E, 16);
-
 	/* use an int128 mode for xmm registers for now, so that firm allows us to
 	 * create constants with the xmm mode... */
 	amd64_mode_xmm = new_int_mode("x86_xmm", irma_twos_complement, 128, 0, 0);
 
-	amd64_backend_params.type_long_double = amd64_type_E;
-
+	x86_init_x87_type();
+	amd64_backend_params.type_long_double = x86_type_E;
 	amd64_backend_params.vararg.va_list_type = amd64_build_va_list_type();
 }
 

ir/be/amd64/bearch_amd64_t.h

@@ -11,11 +11,10 @@
 #define FIRM_BE_AMD64_BEARCH_AMD64_T_H
 
 #include "../ia32/x86_cconv.h"
+#include "../ia32/x86_x87.h"
 
 extern pmap *amd64_constants; /**< A map of entities that store const tarvals */
 
-extern ir_mode *amd64_mode_E;
-extern ir_type *amd64_type_E;
 extern ir_mode *amd64_mode_xmm;
 
 extern bool amd64_use_x64_abi;