From 37d8f61108e97d88d1422dd1e0efabef833b0f26 Mon Sep 17 00:00:00 2001
From: Chung-Ju Wu <jasonwucj@gmail.com>
Date: Sun, 3 Jun 2018 03:26:56 +0000
Subject: [PATCH] [NDS32] Add -march=v3j.

gcc/
	* config/nds32/nds32-opts.h (nds32_arch_type): Add ARCH_V3J.
	* config/nds32/nds32.c (nds32_option_override): Consider ARCH_V3J.
	* config/nds32/nds32.h (TARGET_ISA_V3): Add ARCH_V3J checking.
	* config/nds32/nds32.opt (march): Add enum value Value(ARCH_V3J).

From-SVN: r261123
---
 gcc/ChangeLog                 | 7 +++++++
 gcc/config/nds32/nds32-opts.h | 1 +
 gcc/config/nds32/nds32.c      | 4 +++-
 gcc/config/nds32/nds32.h      | 1 +
 gcc/config/nds32/nds32.opt    | 3 +++
 5 files changed, 15 insertions(+), 1 deletion(-)

diff --git a/gcc/ChangeLog b/gcc/ChangeLog
index 18f539d..1e80862 100644
--- a/gcc/ChangeLog
+++ b/gcc/ChangeLog
@@ -1,5 +1,12 @@
 2018-06-03  Chung-Ju Wu  <jasonwucj@gmail.com>
 
+	* config/nds32/nds32-opts.h (nds32_arch_type): Add ARCH_V3J.
+	* config/nds32/nds32.c (nds32_option_override): Consider ARCH_V3J.
+	* config/nds32/nds32.h (TARGET_ISA_V3): Add ARCH_V3J checking.
+	* config/nds32/nds32.opt (march): Add enum value Value(ARCH_V3J).
+
+2018-06-03  Chung-Ju Wu  <jasonwucj@gmail.com>
+
 	* common/config/nds32/nds32-common.c (nds32_option_optimization_table):
 	Disable -fdelete-null-pointer-checks for ELF toolchain.
 
diff --git a/gcc/config/nds32/nds32-opts.h b/gcc/config/nds32/nds32-opts.h
index e75e75f..8d76196 100644
--- a/gcc/config/nds32/nds32-opts.h
+++ b/gcc/config/nds32/nds32-opts.h
@@ -29,6 +29,7 @@ enum nds32_arch_type
 {
   ARCH_V2,
   ARCH_V3,
+  ARCH_V3J,
   ARCH_V3M,
   ARCH_V3F,
   ARCH_V3S
diff --git a/gcc/config/nds32/nds32.c b/gcc/config/nds32/nds32.c
index a0b6443..85a2986 100644
--- a/gcc/config/nds32/nds32.c
+++ b/gcc/config/nds32/nds32.c
@@ -4087,7 +4087,9 @@ nds32_option_override (void)
     }
   if (TARGET_ISA_V3)
     {
-      /* Under V3 ISA, currently nothing should be strictly set.  */
+      /* If this is ARCH_V3J, we need to enable TARGET_REDUCED_REGS.  */
+      if (nds32_arch_option == ARCH_V3J)
+	target_flags |= MASK_REDUCED_REGS;
     }
   if (TARGET_ISA_V3M)
     {
diff --git a/gcc/config/nds32/nds32.h b/gcc/config/nds32/nds32.h
index 84fae7d..9e36c8f 100644
--- a/gcc/config/nds32/nds32.h
+++ b/gcc/config/nds32/nds32.h
@@ -853,6 +853,7 @@ enum nds32_builtins
 
 #define TARGET_ISA_V3 \
   (nds32_arch_option == ARCH_V3 \
+   || nds32_arch_option == ARCH_V3J \
    || nds32_arch_option == ARCH_V3F \
    || nds32_arch_option == ARCH_V3S)
 #define TARGET_ISA_V3M  (nds32_arch_option == ARCH_V3M)
diff --git a/gcc/config/nds32/nds32.opt b/gcc/config/nds32/nds32.opt
index 871ae1e..a9ffae1 100644
--- a/gcc/config/nds32/nds32.opt
+++ b/gcc/config/nds32/nds32.opt
@@ -177,6 +177,9 @@ EnumValue
 Enum(nds32_arch_type) String(v3) Value(ARCH_V3)
 
 EnumValue
+Enum(nds32_arch_type) String(v3j) Value(ARCH_V3J)
+
+EnumValue
 Enum(nds32_arch_type) String(v3m) Value(ARCH_V3M)
 
 EnumValue
-- 
2.7.4