[META][X86] Improve implementation and use of X86 scheduler models

|  |  |
| --- | --- |
| Bugzilla Link | [32325](https://llvm.org/bz32325) |
| Version | trunk |
| OS | Windows NT |
| Depends On | llvm/llvm-project#17741 llvm/llvm-project#21274 llvm/llvm-project#26792 llvm/llvm-project#27166 llvm/llvm-project#31673 llvm/llvm-project#31834 llvm/llvm-project#34896 llvm/llvm-project#34935 llvm/llvm-project#34936 llvm/llvm-project#34937 llvm/llvm-project#34938 llvm/llvm-project#34939 llvm/llvm-project#34958 llvm/llvm-project#34960 llvm/llvm-project#34991 llvm/llvm-project#35132 llvm/llvm-project#35296 llvm/llvm-project#35304 llvm/llvm-project#35327 llvm/llvm-project#35461 llvm/llvm-project#36128 llvm/llvm-project#36176 llvm/llvm-project#36236 llvm/llvm-project#36243 llvm/llvm-project#36245 llvm/llvm-project#36407 llvm/llvm-project#36479 llvm/llvm-project#36658 llvm/llvm-project#36855 llvm/llvm-project#36949 llvm/llvm-project#36950 llvm/llvm-project#37202 llvm/llvm-project#38536 llvm/llvm-project#41327 llvm/llvm-project#47454 llvm/llvm-project#49694 llvm/llvm-project#49704 llvm/llvm-project#28947 llvm/llvm-project#31564 llvm/llvm-project#31778 llvm/llvm-project#32148 llvm/llvm-project#32204 llvm/llvm-project#34510 llvm/llvm-project#34894 llvm/llvm-project#34897 llvm/llvm-project#34954 llvm/llvm-project#34956 llvm/llvm-project#34987 llvm/llvm-project#35023 llvm/llvm-project#35024 llvm/llvm-project#35061 llvm/llvm-project#35062 llvm/llvm-project#35358 llvm/llvm-project#35432 llvm/llvm-project#36074 llvm/llvm-project#36129 llvm/llvm-project#36130 llvm/llvm-project#36131 llvm/llvm-project#36140 llvm/llvm-project#36156 llvm/llvm-project#36175 llvm/llvm-project#36229 llvm/llvm-project#36235 llvm/llvm-project#36238 llvm/llvm-project#36242 llvm/llvm-project#36246 llvm/llvm-project#36256 llvm/llvm-project#36272 llvm/llvm-project#36278 llvm/llvm-project#36279 llvm/llvm-project#36299 llvm/llvm-project#36305 llvm/llvm-project#36441 llvm/llvm-project#36634 llvm/llvm-project#38813  |
| Blocks | llvm/llvm-project#35898 llvm/llvm-project#36073  |
| CC | @topperc,@filcab,@jryans,@LebedevRI,@MattPD,@rotateright,@ZviRackover |

## Extended Description 
Meta ticket covering issues with the x86 scheduler models, which currently include:

X86ScheduleAtom.td
X86SchedSandyBridge.td
X86SchedHaswell.td
X86ScheduleSLM.td
X86ScheduleBtVer2.td

Including incorrect latency/throughput values and resources.

Also covers possible improvements to how we can use the schedulers to improve performance (e.g. use in the machine combiner for better instruction selection).

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[META][X86] Improve implementation and use of X86 scheduler models #31672

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Bugzilla Link	32325
Version	trunk
OS	Windows NT
Depends On	#17741 #21274 #26792 #27166 #31673 #31834 #34896 #34935 #34936 #34937 #34938 #34939 #34958 #34960 #34991 #35132 #35296 #35304 #35327 #35461 #36128 #36176 #36236 #36243 #36245 #36407 #36479 #36658 #36855 #36949 #36950 #37202 #38536 #41327 #47454 #49694 #49704 #28947 #31564 #31778 #32148 #32204 #34510 #34894 #34897 #34954 #34956 #34987 #35023 #35024 #35061 #35062 #35358 #35432 #36074 #36129 #36130 #36131 #36140 #36156 #36175 #36229 #36235 #36238 #36242 #36246 #36256 #36272 #36278 #36279 #36299 #36305 #36441 #36634 #38813
Blocks	#35898 #36073
CC	@topperc,@filcab,@jryans,@LebedevRI,@MattPD,@rotateright,@ZviRackover

[META][X86] Improve implementation and use of X86 scheduler models #31672

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