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# a11bf9a7 06-Jan-2021 Arthur Eubanks <[email protected]>

[AMDGPU][Inliner] Remove amdgpu-inline and add a new TTI inline hook

Having a custom inliner doesn't really fit in with the new PM's
pipeline. It's also extra technical debt.

amdgpu-inline only doe

[AMDGPU][Inliner] Remove amdgpu-inline and add a new TTI inline hook

Having a custom inliner doesn't really fit in with the new PM's
pipeline. It's also extra technical debt.

amdgpu-inline only does a couple of custom things compared to the normal
inliner:
1) It disables inlining if the number of BBs in a function would exceed
some limit
2) It increases the threshold if there are pointers to private arrays(?)

These can all be handled as TTI inliner hooks.
There already exists a hook for backends to multiply the inlining
threshold.

This way we can remove the custom amdgpu-inline pass.

This caused inline-hint.ll to fail, and after some investigation, it
looks like getInliningThresholdMultiplier() was previously getting
applied twice in amdgpu-inline (https://reviews.llvm.org/D62707 fixed it
not applying at all, so some later inliner change must have fixed
something), so I had to change the threshold in the test.

Reviewed By: rampitec

Differential Revision: https://reviews.llvm.org/D94153

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Revision tags: llvmorg-11.0.1, llvmorg-11.0.1-rc2, llvmorg-11.0.1-rc1, llvmorg-11.0.0, llvmorg-11.0.0-rc6, llvmorg-11.0.0-rc5, llvmorg-11.0.0-rc4, llvmorg-11.0.0-rc3, llvmorg-11.0.0-rc2, llvmorg-11.0.0-rc1, llvmorg-12-init, llvmorg-10.0.1, llvmorg-10.0.1-rc4, llvmorg-10.0.1-rc3, llvmorg-10.0.1-rc2, llvmorg-10.0.1-rc1, llvmorg-10.0.0, llvmorg-10.0.0-rc6, llvmorg-10.0.0-rc5, llvmorg-10.0.0-rc4, llvmorg-10.0.0-rc3, llvmorg-10.0.0-rc2, llvmorg-10.0.0-rc1, llvmorg-11-init, llvmorg-9.0.1, llvmorg-9.0.1-rc3, llvmorg-9.0.1-rc2, llvmorg-9.0.1-rc1, llvmorg-9.0.0, llvmorg-9.0.0-rc6, llvmorg-9.0.0-rc5, llvmorg-9.0.0-rc4, llvmorg-9.0.0-rc3, llvmorg-9.0.0-rc2, llvmorg-9.0.0-rc1, llvmorg-10-init, llvmorg-8.0.1, llvmorg-8.0.1-rc4, llvmorg-8.0.1-rc3
# ffeb01c1 14-Jun-2019 Valery Pykhtin <[email protected]>

[AMDGPU] Don't constrain callees with inlinehint from inlining on MaxBB check

Summary: Function bodies marked inline in an opencl source are eliminated but MaxBB check may prevent inlining them leav

[AMDGPU] Don't constrain callees with inlinehint from inlining on MaxBB check

Summary: Function bodies marked inline in an opencl source are eliminated but MaxBB check may prevent inlining them leaving undefined references.

Reviewers: rampitec, arsenm

Subscribers: kzhuravl, jvesely, wdng, nhaehnle, yaxunl, dstuttard, tpr, Anastasia, t-tye, hiraditya, llvm-commits

Tags: #llvm

Differential Revision: https://reviews.llvm.org/D63337

llvm-svn: 363418

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Revision tags: llvmorg-8.0.1-rc2
# cb8de55f 07-Jun-2019 Valery Pykhtin <[email protected]>

[AMDGPU] Constrain the AMDGPU inliner on maximum number of basic blocks in a caller function (compile time performance)

Differential revision: https://reviews.llvm.org/D62917

llvm-svn: 362789