Ahead microtage index perf - #741

Closed

CaoJiaming776 wants to merge 30 commits into

ahead-microtage-index-perf

Commits on Jan 28, 2026

cpu-o3: split microtage out of tage
Cao Jiaming
committed
d1b55e7
cpu-o3: enhance branch index calculation in MicroTAGE to handle edge cases
Cao Jiaming
committed
bd6087d
cpu-o3: update blockWidth calculation to handle zero blockSize
Cao Jiaming
committed
542f6cb
cpu-o3: adjust MicroTAGE parameters and clean up code for clarity
Cao Jiaming
committed
c23b9a9
cpu-o3: remove unused variable 'usingBasetable'
Cao Jiaming
committed
a358334
cpu-o3: MicroTAGE to remove base table and alternative prediction
Cao Jiaming
committed
9a01469
cpu-o3: update MicroTAGE parameters for consistency
Cao Jiaming
committed
05a0f32
cpu-o3: remove alternative prediction logic
Cao Jiaming
committed
bfb1563
cpu-o3: refine MicroTAGE parameters and remove unused variables
Cao Jiaming
committed
f742b1b
cpu-o3: update MicroTAGE history length parameter to 16
Cao Jiaming
committed
9404558
cpu-o3: enhance MicroTAGE history management with ahead queues
Cao Jiaming
committed
7a5d5ab
cpu-o3:open microtage
Cao Jiaming
committed
042d451
cpu-o3:close utage in ideal
Cao Jiaming
committed
7e25f61
cpu-o3: update folded history queue size limit
Cao Jiaming
committed
aeff5ff
cpu-o3: disable MicroTAGE in branch prediction configuration
Cao Jiaming
committed
63be8d5
cpu-o3: refine folded history queue management in doUpdateHist
Cao Jiaming
committed
50728be
cpu-o3: update .gitignore and modify MicroTAGE predictor includes
Cao Jiaming
committed
ba883a1
cpu-o3: refactor MicroTAGE history management by removing ahead index history queue
Cao Jiaming
committed
add8efc

Commits on Jan 29, 2026

cpu-o3: disable MicroTAGE predictor in setKmhV3Ideal
Cao Jiaming
committed
04aa5dc
cpu-o3: enhance MicroTAGE predictor to support alternative tag history
Cao Jiaming
committed
57e8ea4
cpu-o3:enable utage in idael
Cao Jiaming
committed
4eb6b9b
cpu-o3: remove alternative tag history from MicroTAGE index
Cao Jiaming
committed
2c69bbc

Commits on Jan 30, 2026

cpu-o3: implement ahead index history management in MicroTAGE
Cao Jiaming
committed
88017f2

Commits on Feb 2, 2026

cpu-o3: add debug logging in MicroTAGE updates
Cao Jiaming
committed
5ebc8f1

Commits on Mar 3, 2026

cpu-o3: update index folded history recovery in MicroTAGE
Cao Jiaming
committed
2e11646
cpu-o3: update doUpdateHist to handle ahead index folded history
Cao Jiaming
committed
b1d0f6a

Commits on Mar 4, 2026

cpu-o3: enhance ahead index history management in MicroTAGE
Cao Jiaming
committed
eeab9d8
cpu: Add UTAGE flag and clean up MicroTAGE
Cao Jiaming
committed
38fdd3b

Commits on Mar 5, 2026

cpu-o3: correct invalidation logic for duplicated entries in AheadBTB
Cao Jiaming
committed
7dbfbde
cpu-o3: update uTAGE parameters *4 for improved configuration
Cao Jiaming
committed
82a2364