remove unused simple return code

3 files changed, 0 insertions, 69 deletions

diff --git a/gcc/config/arm/thumb.c b/gcc/config/arm/thumb.c
index 1aaff01..05ded97 100755
--- a/gcc/config/arm/thumb.c
+++ b/gcc/config/arm/thumb.c
@@ -741,65 +741,6 @@ far_jump_used_p()
 
 static int return_used_this_function = 0;
 
-char *
-output_return()
-{
-    int regno;
-    int live_regs_mask = 0;
-
-    /* If a function is naked, don't use the "return" insn.  */
-    if (arm_naked_function_p(current_function_decl))
-        return "";
-
-    return_used_this_function = 1;
-
-    for (regno = 0; regno < 8; regno++)
-        if (regs_ever_live[regno] && !call_used_regs[regno])
-            live_regs_mask |= 1 << regno;
-
-    if (live_regs_mask == 0)
-    {
-        if (leaf_function_p() && !far_jump_used_p())
-        {
-            thumb_exit(asm_out_file, 14);
-        }
-        else if (TARGET_THUMB_INTERWORK)
-        {
-            thumb_exit(asm_out_file, -1);
-        }
-        else
-        {
-            asm_fprintf(asm_out_file, "\tpop\t{pc}\n");
-        }
-    }
-    else
-    {
-        asm_fprintf(asm_out_file,  "\tpop\t{");
-
-        for (regno = 0; live_regs_mask; regno++, live_regs_mask >>= 1)
-        {
-            if (live_regs_mask & 1)
-            {
-                asm_fprintf(asm_out_file, reg_names[regno]);
-                if (live_regs_mask & ~1)
-                    asm_fprintf(asm_out_file, ", ");
-            }
-        }
-
-        if (TARGET_THUMB_INTERWORK)
-        {
-            asm_fprintf(asm_out_file, "}\n");
-            thumb_exit(asm_out_file, -1);
-        }
-        else
-        {
-            asm_fprintf(asm_out_file, ", pc}\n");
-        }
-    }
-
-    return "";
-}
-
 void
 thumb_function_prologue(FILE *f, int frame_size)
 {
diff --git a/gcc/config/arm/thumb.h b/gcc/config/arm/thumb.h
index 2c65886..e38281c 100755
--- a/gcc/config/arm/thumb.h
+++ b/gcc/config/arm/thumb.h
@@ -1148,12 +1148,8 @@ int thumb_shiftable_const ();
    limited PC addressing range: */
 #define MACHINE_DEPENDENT_REORG(INSN) thumb_reorg ((INSN))
 
-/* True if a return instruction can be used in this function. */
-#define USE_RETURN reload_completed
-
 extern char * thumb_unexpanded_epilogue ();
 extern char * output_move_mem_multiple ();
 extern char * thumb_load_double_from_address ();
-extern char * output_return ();
 extern int    far_jump_used_p();
 
diff --git a/gcc/config/arm/thumb.md b/gcc/config/arm/thumb.md
index 1769ac9..ea4fa9c 100755
--- a/gcc/config/arm/thumb.md
+++ b/gcc/config/arm/thumb.md
@@ -993,12 +993,6 @@
   ""
   "mov\\tpc, %0")
 
-(define_insn "return"
-  [(return)]
-  "USE_RETURN"
-  "* return output_return ();"
-[(set_attr "length" "18")])
-
 ;; Call insns
 
 (define_expand "call"