From 82862e0e15fbb55e022823d5ea5cc8470e330c22 Mon Sep 17 00:00:00 2001
From: Korey Sewell <ksewell@umich.edu>
Date: Thu, 31 Aug 2006 20:51:30 -0400
Subject: add ISA_HAS_DELAY_SLOT directive instead of "#if THE_ISA ==
 ALPHA_ISA" throughout CPU models

src/arch/alpha/isa_traits.hh:
src/arch/mips/isa_traits.hh:
src/arch/sparc/isa_traits.hh:
    define 'ISA_HAS_DELAY_SLOT'
src/cpu/base_dyn_inst.hh:
src/cpu/o3/bpred_unit_impl.hh:
src/cpu/o3/commit_impl.hh:
src/cpu/o3/cpu.cc:
src/cpu/o3/cpu.hh:
src/cpu/o3/decode_impl.hh:
src/cpu/o3/fetch_impl.hh:
src/cpu/o3/iew_impl.hh:
src/cpu/o3/inst_queue_impl.hh:
src/cpu/o3/rename_impl.hh:
src/cpu/simple/base.cc:
    use ISA_HAS_DELAY_SLOT instead of THE_ISA == ALPHA_ISA

--HG--
extra : convert_revision : 24c7460d9391e8d443c9fe08e17c331ae8e9c36a
---
 src/cpu/o3/decode_impl.hh | 18 +++++++++---------
 1 file changed, 9 insertions(+), 9 deletions(-)

(limited to 'src/cpu/o3/decode_impl.hh')

diff --git a/src/cpu/o3/decode_impl.hh b/src/cpu/o3/decode_impl.hh
index 160845378..80b6cc4c9 100644
--- a/src/cpu/o3/decode_impl.hh
+++ b/src/cpu/o3/decode_impl.hh
@@ -282,12 +282,7 @@ DefaultDecode<Impl>::squash(DynInstPtr &inst, unsigned tid)
     toFetch->decodeInfo[tid].doneSeqNum = inst->seqNum;
     toFetch->decodeInfo[tid].squash = true;
     toFetch->decodeInfo[tid].nextPC = inst->branchTarget();
-#if THE_ISA == ALPHA_ISA
-    toFetch->decodeInfo[tid].branchTaken =
-        inst->readNextPC() != (inst->readPC() + sizeof(TheISA::MachInst));
-
-    InstSeqNum squash_seq_num = inst->seqNum;
-#else
+#if ISA_HAS_DELAY_SLOT
     toFetch->decodeInfo[tid].branchTaken = inst->readNextNPC() !=
         (inst->readNextPC() + sizeof(TheISA::MachInst));
 
@@ -295,6 +290,11 @@ DefaultDecode<Impl>::squash(DynInstPtr &inst, unsigned tid)
     squashAfterDelaySlot[tid] = false;
 
     InstSeqNum squash_seq_num = bdelayDoneSeqNum[tid];
+#else
+    toFetch->decodeInfo[tid].branchTaken =
+        inst->readNextPC() != (inst->readPC() + sizeof(TheISA::MachInst));
+
+    InstSeqNum squash_seq_num = inst->seqNum;
 #endif
 
     // Might have to tell fetch to unblock.
@@ -317,7 +317,7 @@ DefaultDecode<Impl>::squash(DynInstPtr &inst, unsigned tid)
     // insts in them.
     while (!insts[tid].empty()) {
 
-#if THE_ISA != ALPHA_ISA
+#if ISA_HAS_DELAY_SLOT
         if (insts[tid].front()->seqNum <= squash_seq_num) {
             DPRINTF(Decode, "[tid:%i]: Cannot remove incoming decode "
                     "instructions before delay slot [sn:%i]. %i insts"
@@ -331,7 +331,7 @@ DefaultDecode<Impl>::squash(DynInstPtr &inst, unsigned tid)
 
     while (!skidBuffer[tid].empty()) {
 
-#if THE_ISA != ALPHA_ISA
+#if ISA_HAS_DELAY_SLOT
         if (skidBuffer[tid].front()->seqNum <= squash_seq_num) {
             DPRINTF(Decode, "[tid:%i]: Cannot remove skidBuffer "
                     "instructions before delay slot [sn:%i]. %i insts"
@@ -765,7 +765,7 @@ DefaultDecode<Impl>::decodeInsts(unsigned tid)
 
                 // Might want to set some sort of boolean and just do
                 // a check at the end
-#if THE_ISA == ALPHA_ISA
+#if !ISA_HAS_DELAY_SLOT
                 squash(inst, inst->threadNumber);
                 inst->setPredTarg(inst->branchTarget());
                 break;
-- 
cgit v1.2.3