From 2dd9f4fcf02c68eb86a6742576eecb3eef3b9ddf Mon Sep 17 00:00:00 2001
From: Gabe Black <gblack@eecs.umich.edu>
Date: Tue, 14 Sep 2010 12:31:37 -0700
Subject: X86: Make the halt microop non-speculative.

Executing this microop makes the CPU halt even if it was misspeculated.
---
 src/arch/x86/isa/microops/specop.isa | 4 +++-
 1 file changed, 3 insertions(+), 1 deletion(-)

(limited to 'src')

diff --git a/src/arch/x86/isa/microops/specop.isa b/src/arch/x86/isa/microops/specop.isa
index f6978075b..52420f175 100644
--- a/src/arch/x86/isa/microops/specop.isa
+++ b/src/arch/x86/isa/microops/specop.isa
@@ -61,7 +61,9 @@ output header {{
       public:
         MicroHalt(ExtMachInst _machInst, const char * instMnem,
                 uint64_t setFlags) :
-            X86MicroopBase(_machInst, "halt", instMnem, setFlags, No_OpClass)
+            X86MicroopBase(_machInst, "halt", instMnem,
+                           setFlags | (ULL(1) << StaticInst::IsNonSpeculative),
+                           No_OpClass)
         {
         }
 
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