From bd583d00f96cd6e8bb0669e2aacc9dfad1eda2b1 Mon Sep 17 00:00:00 2001
From: Andreas Hansson <andreas.hansson@arm.com>
Date: Fri, 15 May 2015 13:39:53 -0400
Subject: misc: Appease gcc 5.1

Three minor issues are resolved:

1. Apparently gcc 5.1 does not like negation of booleans followed by
   bitwise AND.

2. Somehow the compiler also gets confused and warns about
   NoopMachInst being unused (removing it causes compilation errors
   though). Most likely a compiler bug.

3. There seems to be a number of instances where loop unrolling causes
   false positives for the array-bounds check. For now, switch to
   std::array. Potentially we could disable the warning for newer gcc
   versions, but switching to std::array is probably a good move in
   any case.
---
 src/cpu/base_dyn_inst.hh | 9 +++++----
 1 file changed, 5 insertions(+), 4 deletions(-)

(limited to 'src/cpu/base_dyn_inst.hh')

diff --git a/src/cpu/base_dyn_inst.hh b/src/cpu/base_dyn_inst.hh
index 50b1b12ce..5b54679c9 100644
--- a/src/cpu/base_dyn_inst.hh
+++ b/src/cpu/base_dyn_inst.hh
@@ -46,6 +46,7 @@
 #ifndef __CPU_BASE_DYN_INST_HH__
 #define __CPU_BASE_DYN_INST_HH__
 
+#include <array>
 #include <bitset>
 #include <list>
 #include <string>
@@ -258,22 +259,22 @@ class BaseDynInst : public ExecContext, public RefCounted
     /** Flattened register index of the destination registers of this
      *  instruction.
      */
-    TheISA::RegIndex _flatDestRegIdx[TheISA::MaxInstDestRegs];
+    std::array<TheISA::RegIndex, TheISA::MaxInstDestRegs> _flatDestRegIdx;
 
     /** Physical register index of the destination registers of this
      *  instruction.
      */
-    PhysRegIndex _destRegIdx[TheISA::MaxInstDestRegs];
+    std::array<PhysRegIndex, TheISA::MaxInstDestRegs> _destRegIdx;
 
     /** Physical register index of the source registers of this
      *  instruction.
      */
-    PhysRegIndex _srcRegIdx[TheISA::MaxInstSrcRegs];
+    std::array<PhysRegIndex, TheISA::MaxInstSrcRegs> _srcRegIdx;
 
     /** Physical register index of the previous producers of the
      *  architected destinations.
      */
-    PhysRegIndex _prevDestRegIdx[TheISA::MaxInstDestRegs];
+    std::array<PhysRegIndex, TheISA::MaxInstDestRegs> _prevDestRegIdx;
 
 
   public:
-- 
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