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11 Commits

Author SHA1 Message Date
Arthur Eubanks 9faab435a3 [docs] Mention that we are in the process of removing the legacy PM for the optimization pipeline 
And remove references to flags to turn it off.

Reviewed By: nikic, MaskRay

Differential Revision: https://reviews.llvm.org/D123547
 2022-04-12 10:47:58 -07:00
Nikita Popov ed4e6e0398 [cmake] Remove LLVM_ENABLE_NEW_PASS_MANAGER cmake option 
Or rather, error out if it is set to something other than ON. This
removes the ability to enable the legacy pass manager by default,
but does not remove the ability to explicitly enable it through
various flags like -flegacy-pass-manager or -enable-new-pm=0.

I checked, and our test suite definitely doesn't pass with
LLVM_ENABLE_NEW_PASS_MANAGER=OFF anymore.

Differential Revision: https://reviews.llvm.org/D123126
 2022-04-06 09:52:21 +02:00
Arthur Eubanks bfdf28f963 [docs][NewPM] Remove buildDefaultAAPipeline() in example 
With D113210 we're already using the default AA pipeline by default.
 2022-02-18 10:43:26 -08:00
Shao-Ce SUN 0c660256eb [NFC] Trim trailing whitespace in *.rst 2021-11-15 09:17:08 +08:00
Miguel Raz Guzmán Macedo 03eddbc714 [doc] Typo fix in NewPassManager.rst 
Simple typo fix.

Reviewed By: aeubanks

Differential Revision: https://reviews.llvm.org/D112780
 2021-10-29 13:11:11 -07:00
Arthur Eubanks ce304a452a [docs][NewPM] Add example C++ code on how to actually use the new PM 
Differential Revision: https://reviews.llvm.org/D112477
 2021-10-25 13:24:20 -07:00
Fangrui Song a42bd1b560 [CMake] Change -DENABLE_EXPERIMENTAL_NEW_PASS_MANAGER=off to -DLLVM_ENABLE_NEW_PASS_MANAGER=off 
LLVM_ENABLE_NEW_PASS_MANAGER is set to ENABLE_EXPERIMENTAL_NEW_PASS_MANAGER, so
-DLLVM_ENABLE_NEW_PASS_MANAGER=off has no effect.

Change the cache variable to LLVM_ENABLE_NEW_PASS_MANAGER instead.
A user opting out the new PM needs to switch from
-DENABLE_EXPERIMENTAL_NEW_PASS_MANAGER=off to
-DLLVM_ENABLE_NEW_PASS_MANAGER=off.

Also give a warning that -DLLVM_ENABLE_NEW_PASS_MANAGER=off is deprecated.

Reviewed By: aeubanks, phosek

Differential Revision: https://reviews.llvm.org/D108775
 2021-08-26 14:25:31 -07:00
Arthur Eubanks e15673df27 [docs][NewPM] Add some instructions on how to invoke opt 
Also add link to blog post.

Reviewed By: nickdesaulniers

Differential Revision: https://reviews.llvm.org/D104812
 2021-06-23 19:49:35 -07:00
Arthur Eubanks 0172b1389e [docs] Fix some wording 2021-05-04 10:21:38 -07:00
Arthur Eubanks 9779b664b6 [docs][NewPM] Add section on analyses 
Reviewed By: asbirlea, ychen

Differential Revision: https://reviews.llvm.org/D100912
 2021-05-03 10:15:02 -07:00
Arthur Eubanks 016f0ee686 [docs] Add documentation on using the new pass manager 
And clarify in the "writing a pass" docs that both the legacy and new
PMs are being used for the codegen/optimization pipelines.

Reviewed By: ychen, asbirlea

Differential Revision: https://reviews.llvm.org/D97515
 2021-02-26 15:28:19 -08:00