diff options
Diffstat (limited to 'src/cpu/pred/btb.hh')
| -rw-r--r-- | src/cpu/pred/btb.hh | 17 |
1 files changed, 9 insertions, 8 deletions
diff --git a/src/cpu/pred/btb.hh b/src/cpu/pred/btb.hh index 6557522e0..814b23872 100644 --- a/src/cpu/pred/btb.hh +++ b/src/cpu/pred/btb.hh @@ -31,8 +31,10 @@ #ifndef __CPU_O3_BTB_HH__ #define __CPU_O3_BTB_HH__ +#include "arch/types.hh" #include "base/misc.hh" #include "base/types.hh" +#include "config/the_isa.hh" class DefaultBTB { @@ -41,14 +43,13 @@ class DefaultBTB { BTBEntry() : tag(0), target(0), valid(false) - { - } + {} /** The entry's tag. */ Addr tag; /** The entry's target. */ - Addr target; + TheISA::PCState target; /** The entry's thread id. */ ThreadID tid; @@ -74,21 +75,21 @@ class DefaultBTB * @param tid The thread id. * @return Returns the target of the branch. */ - Addr lookup(const Addr &inst_PC, ThreadID tid); + TheISA::PCState lookup(Addr instPC, ThreadID tid); /** Checks if a branch is in the BTB. * @param inst_PC The address of the branch to look up. * @param tid The thread id. * @return Whether or not the branch exists in the BTB. */ - bool valid(const Addr &inst_PC, ThreadID tid); + bool valid(Addr instPC, ThreadID tid); /** Updates the BTB with the target of a branch. * @param inst_PC The address of the branch being updated. * @param target_PC The target address of the branch. * @param tid The thread id. */ - void update(const Addr &inst_PC, const Addr &target_PC, + void update(Addr instPC, const TheISA::PCState &targetPC, ThreadID tid); private: @@ -96,13 +97,13 @@ class DefaultBTB * @param inst_PC The branch to look up. * @return Returns the index into the BTB. */ - inline unsigned getIndex(const Addr &inst_PC); + inline unsigned getIndex(Addr instPC); /** Returns the tag bits of a given address. * @param inst_PC The branch's address. * @return Returns the tag bits. */ - inline Addr getTag(const Addr &inst_PC); + inline Addr getTag(Addr instPC); /** The actual BTB. */ std::vector<BTBEntry> btb; |