Replace explicit xc->misspeculating() tests in execute() methods

with an IsNonSpeculative flag.
No effect on results of non-full-system or SimpleCPU.
Very small impact on full-system FullCPU runs since old wrong-path
call_pal insts used to change the PC, where now they're treated
as no-ops.

arch/alpha/isa_desc:
    Get rid of xc->misspeculating() checks, use IsNonSpeculative flag instead.
cpu/static_inst.hh:
    Add IsNonSpeculative flag and isNonSpeculative() method to test it.

--HG--
extra : convert_revision : 7ec536bfc28b905c429c09eb920ed73ef2beeeba

1 files changed, 4 insertions, 1 deletions

diff --git a/cpu/static_inst.hh b/cpu/static_inst.hh
index 1065fa3d4..088fdbdb7 100644
--- a/cpu/static_inst.hh
+++ b/cpu/static_inst.hh
@@ -106,11 +106,13 @@ class StaticInstBase : public RefCounted
 
         IsThreadSync,	///< Thread synchronization operation.
 
-        IsSerializing,	///< Serializes pipeline: won't until all
+        IsSerializing,	///< Serializes pipeline: won't execute until all
                         /// older instructions have committed.
         IsMemBarrier,	///< Is a memory barrier
         IsWriteBarrier,	///< Is a write barrier
 
+        IsNonSpeculative, ///< Should not be executed speculatively
+
         NumFlags
     };
 
@@ -192,6 +194,7 @@ class StaticInstBase : public RefCounted
     bool isSerializing()  const { return flags[IsSerializing]; }
     bool isMemBarrier()   const { return flags[IsMemBarrier]; }
     bool isWriteBarrier() const { return flags[IsWriteBarrier]; }
+    bool isNonSpeculative() const { return flags[IsNonSpeculative]; }
     //@}
 
     /// Operation class.  Used to select appropriate function unit in issue.