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authorMatt Horsnell <Matt.Horsnell@arm.com>2013-02-15 17:40:09 -0500
committerMatt Horsnell <Matt.Horsnell@arm.com>2013-02-15 17:40:09 -0500
commite88e7d88b9a9876ee040dad96acf3deabebe1fa7 (patch)
tree54322d578272a21cd721788f25746cfbd88d94bb /src/cpu/o3/decode_impl.hh
parent64599080697a8db49b7e28609927bb4c1ed3c05e (diff)
downloadgem5-e88e7d88b9a9876ee040dad96acf3deabebe1fa7.tar.xz
o3: fix tick used for renaming and issue with range selection
Fixes the tick used from rename: - previously this gathered the tick on leaving rename which was always 1 less than the dispatch. This conflated the decode ticks when back pressure built in the pipeline. - now picks up tick on entry. Added --store_completions flag: - will additionally display the store completion tail in the viewer. - this highlights periods when large numbers of stores are outstanding (>16 LSQ blocking) Allows selection by tick range (previously this caused an infinite loop)
Diffstat (limited to 'src/cpu/o3/decode_impl.hh')
-rw-r--r--src/cpu/o3/decode_impl.hh5
1 files changed, 4 insertions, 1 deletions
diff --git a/src/cpu/o3/decode_impl.hh b/src/cpu/o3/decode_impl.hh
index f87ec0bfa..9ab672931 100644
--- a/src/cpu/o3/decode_impl.hh
+++ b/src/cpu/o3/decode_impl.hh
@@ -47,6 +47,7 @@
#include "cpu/inst_seq.hh"
#include "debug/Activity.hh"
#include "debug/Decode.hh"
+#include "debug/O3PipeView.hh"
#include "params/DerivO3CPU.hh"
#include "sim/full_system.hh"
@@ -714,7 +715,9 @@ DefaultDecode<Impl>::decodeInsts(ThreadID tid)
--insts_available;
#if TRACING_ON
- inst->decodeTick = curTick() - inst->fetchTick;
+ if (DTRACE(O3PipeView)) {
+ inst->decodeTick = curTick() - inst->fetchTick;
+ }
#endif
// Ensure that if it was predicted as a branch, it really is a