From: Chung-Ju Wu <jasonwucj@gmail.com>
Date: Tue, 13 Jan 2015 05:37:07 +0000 (+0000)
Subject: [NDS32] Consider TARGET_CMODEL_LARGE for function call instructions.
X-Git-Url: https://git.libre-soc.org/?a=commitdiff_plain;h=1f7b80289aa9a25587e711a58220a5ba9bcfd0e0;p=gcc.git

[NDS32] Consider TARGET_CMODEL_LARGE for function call instructions.

gcc/
	* config/nds32/nds32.md (call): Use pseudo instruction bal which
	clobbers TA_REGNUM if large code model is specified.
	(call_register): Likewise.
	(call_immediate): Likewise.
	(call_value): Likewise.
	(call_value_register): Likewise.
	(call_value_immediate): Likewise.

From-SVN: r219512
---

diff --git a/gcc/ChangeLog b/gcc/ChangeLog
index f4fae586b27..047af3dbe44 100644
--- a/gcc/ChangeLog
+++ b/gcc/ChangeLog
@@ -1,3 +1,13 @@
+2015-01-13  Chung-Ju Wu  <jasonwucj@gmail.com>
+
+	* config/nds32/nds32.md (call): Use pseudo instruction bal which
+	clobbers TA_REGNUM if large code model is specified.
+	(call_register): Likewise.
+	(call_immediate): Likewise.
+	(call_value): Likewise.
+	(call_value_register): Likewise.
+	(call_value_immediate): Likewise.
+
 2015-01-13  Chung-Ju Wu  <jasonwucj@gmail.com>
 
 	* config/nds32/nds32.h (TARGET_CMODEL_SMALL): New macro.
diff --git a/gcc/config/nds32/nds32.md b/gcc/config/nds32/nds32.md
index 41b5bdc29f6..8302969fcab 100644
--- a/gcc/config/nds32/nds32.md
+++ b/gcc/config/nds32/nds32.md
@@ -1902,7 +1902,8 @@ create_template:
 (define_expand "call"
   [(parallel [(call (match_operand 0 "memory_operand" "")
 		    (match_operand 1))
-	      (clobber (reg:SI LP_REGNUM))])]
+	      (clobber (reg:SI LP_REGNUM))
+	      (clobber (reg:SI TA_REGNUM))])]
   ""
   ""
 )
@@ -1910,7 +1911,8 @@ create_template:
 (define_insn "*call_register"
   [(parallel [(call (mem (match_operand:SI 0 "register_operand" "r, r"))
 		    (match_operand 1))
-	      (clobber (reg:SI LP_REGNUM))])]
+	      (clobber (reg:SI LP_REGNUM))
+	      (clobber (reg:SI TA_REGNUM))])]
   ""
   "@
   jral5\t%0
@@ -1921,11 +1923,20 @@ create_template:
 (define_insn "*call_immediate"
   [(parallel [(call (mem (match_operand:SI 0 "immediate_operand" "i"))
 		    (match_operand 1))
-	      (clobber (reg:SI LP_REGNUM))])]
+	      (clobber (reg:SI LP_REGNUM))
+	      (clobber (reg:SI TA_REGNUM))])]
   ""
-  "jal\t%0"
+{
+  if (TARGET_CMODEL_LARGE)
+    return "bal\t%0";
+  else
+    return "jal\t%0";
+}
   [(set_attr "type"   "branch")
-   (set_attr "length"      "4")])
+   (set (attr "length")
+	(if_then_else (match_test "TARGET_CMODEL_LARGE")
+		      (const_int 12)
+		      (const_int 4)))])
 
 
 ;; Subroutine call instruction returning a value.
@@ -1938,7 +1949,8 @@ create_template:
   [(parallel [(set (match_operand 0)
 		   (call (match_operand 1 "memory_operand" "")
 		         (match_operand 2)))
-	      (clobber (reg:SI LP_REGNUM))])]
+	      (clobber (reg:SI LP_REGNUM))
+	      (clobber (reg:SI TA_REGNUM))])]
   ""
   ""
 )
@@ -1947,7 +1959,8 @@ create_template:
   [(parallel [(set (match_operand 0)
 		   (call (mem (match_operand:SI 1 "register_operand" "r, r"))
 		         (match_operand 2)))
-	      (clobber (reg:SI LP_REGNUM))])]
+	      (clobber (reg:SI LP_REGNUM))
+	      (clobber (reg:SI TA_REGNUM))])]
   ""
   "@
   jral5\t%1
@@ -1959,11 +1972,20 @@ create_template:
   [(parallel [(set (match_operand 0)
 		   (call (mem (match_operand:SI 1 "immediate_operand" "i"))
 			 (match_operand 2)))
-	      (clobber (reg:SI LP_REGNUM))])]
+	      (clobber (reg:SI LP_REGNUM))
+	      (clobber (reg:SI TA_REGNUM))])]
   ""
-  "jal\t%1"
+{
+  if (TARGET_CMODEL_LARGE)
+    return "bal\t%1";
+  else
+    return "jal\t%1";
+}
   [(set_attr "type"   "branch")
-   (set_attr "length"      "4")])
+   (set (attr "length")
+	(if_then_else (match_test "TARGET_CMODEL_LARGE")
+		      (const_int 12)
+		      (const_int 4)))])
 
 
 ;; prologue and epilogue.