From: Claudiu Zissulescu <claziss@synopsys.com>
Date: Tue, 25 Apr 2017 12:04:14 +0000 (+0200)
Subject: [ARC] Make D0, D1 double regs fix when not used.
X-Git-Url: https://git.libre-soc.org/?a=commitdiff_plain;h=ad3d6e77aa4b779f8ea8223210b5fc6b3c45c356;p=gcc.git

[ARC] Make D0, D1 double regs fix when not used.

gcc/
2017-04-25  Claudiu Zissulescu  <claziss@synopsys.com>

	* config/arc/arc.c (arc_conditional_register_usage): Make D0, D1
	double regs fix when not used.

From-SVN: r247198
---

diff --git a/gcc/ChangeLog b/gcc/ChangeLog
index e4b71023b70..e55c5df7fd1 100644
--- a/gcc/ChangeLog
+++ b/gcc/ChangeLog
@@ -1,3 +1,8 @@
+2017-04-25  Claudiu Zissulescu  <claziss@synopsys.com>
+
+	* config/arc/arc.c (arc_conditional_register_usage): Make D0, D1
+	double regs fix when not used.
+
 2017-04-25  Claudiu Zissulescu  <claziss@synopsys.com>
 
 	* config/arc/arc.h (REGNO_OK_FOR_BASE_P): Consider also extension
diff --git a/gcc/config/arc/arc.c b/gcc/config/arc/arc.c
index d6f500c88b0..dc201ee7450 100644
--- a/gcc/config/arc/arc.c
+++ b/gcc/config/arc/arc.c
@@ -1543,6 +1543,11 @@ arc_conditional_register_usage (void)
       arc_regno_reg_class[42] = ALL_REGS;
       arc_regno_reg_class[43] = ALL_REGS;
 
+      fixed_regs[40] = 1;
+      fixed_regs[41] = 1;
+      fixed_regs[42] = 1;
+      fixed_regs[43] = 1;
+
       arc_hard_regno_mode_ok[40] = 0;
       arc_hard_regno_mode_ok[42] = 0;