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Revision tags: llvmorg-20.1.0, llvmorg-20.1.0-rc3, llvmorg-20.1.0-rc2, llvmorg-20.1.0-rc1, llvmorg-21-init, llvmorg-19.1.7, llvmorg-19.1.6, llvmorg-19.1.5, llvmorg-19.1.4, llvmorg-19.1.3, llvmorg-19.1.2, llvmorg-19.1.1, llvmorg-19.1.0, llvmorg-19.1.0-rc4, llvmorg-19.1.0-rc3, llvmorg-19.1.0-rc2, llvmorg-19.1.0-rc1, llvmorg-20-init, llvmorg-18.1.8, llvmorg-18.1.7, llvmorg-18.1.6, llvmorg-18.1.5, llvmorg-18.1.4, llvmorg-18.1.3, llvmorg-18.1.2, llvmorg-18.1.1, llvmorg-18.1.0, llvmorg-18.1.0-rc4, llvmorg-18.1.0-rc3, llvmorg-18.1.0-rc2, llvmorg-18.1.0-rc1, llvmorg-19-init, llvmorg-17.0.6, llvmorg-17.0.5, llvmorg-17.0.4, llvmorg-17.0.3, llvmorg-17.0.2, llvmorg-17.0.1, llvmorg-17.0.0, llvmorg-17.0.0-rc4, llvmorg-17.0.0-rc3, llvmorg-17.0.0-rc2, llvmorg-17.0.0-rc1, llvmorg-18-init, llvmorg-16.0.6, llvmorg-16.0.5, llvmorg-16.0.4, llvmorg-16.0.3, llvmorg-16.0.2, llvmorg-16.0.1, llvmorg-16.0.0, llvmorg-16.0.0-rc4, llvmorg-16.0.0-rc3, llvmorg-16.0.0-rc2, llvmorg-16.0.0-rc1, llvmorg-17-init, llvmorg-15.0.7, llvmorg-15.0.6, llvmorg-15.0.5, llvmorg-15.0.4, llvmorg-15.0.3, llvmorg-15.0.2, llvmorg-15.0.1, llvmorg-15.0.0, llvmorg-15.0.0-rc3, llvmorg-15.0.0-rc2, llvmorg-15.0.0-rc1, llvmorg-16-init |
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58fec782 |
| 14-Jul-2022 |
Brendon Cahoon <[email protected]> |
Revert "[UnifyLoopExits] Reduce number of guard blocks"
This reverts commit e13248ab0e79b59d5e5ac73e2fe57d82ce485ce1.
Need to revert because the transformation cannot occur for basic
blocks that co
Revert "[UnifyLoopExits] Reduce number of guard blocks"
This reverts commit e13248ab0e79b59d5e5ac73e2fe57d82ce485ce1.
Need to revert because the transformation cannot occur for basic
blocks that contain convergent instructions.
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Revision tags: llvmorg-14.0.6, llvmorg-14.0.5, llvmorg-14.0.4, llvmorg-14.0.3, llvmorg-14.0.2, llvmorg-14.0.1 |
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e13248ab |
| 06-Apr-2022 |
Brendon Cahoon <[email protected]> |
[UnifyLoopExits] Reduce number of guard blocks
UnifyLoopExits creates a single exit, a control flow hub, for
loops with multiple exits. There is an input to the block for
each loop exiting block and
[UnifyLoopExits] Reduce number of guard blocks
UnifyLoopExits creates a single exit, a control flow hub, for
loops with multiple exits. There is an input to the block for
each loop exiting block and an output from the block for each
loop exit block. Multiple checks, or guard blocks, are needed
to branch to the correct exit block.
For large loops with lots of exit blocks, all the extra guard
blocks cause problems for StructurizeCFG and subsequent passes.
This patch reduces the number of guard blocks needed when the
exit blocks branch to a common block (e.g., an unreachable
block). The guard blocks are reduced by changing the inputs
and outputs of the control flow hub. The inputs are the exit
blocks and the outputs are the common block.
Reducing the guard blocks enables StructurizeCFG to reorder the
basic blocks in the CFG to reduce the values that exit a loop
with multiple exits. This reduces the compile-time of
StructurizeCFG and also reduces register pressure.
Differential Revision: https://reviews.llvm.org/D123230
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Revision tags: llvmorg-14.0.0, llvmorg-14.0.0-rc4, llvmorg-14.0.0-rc3, llvmorg-14.0.0-rc2 |
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a494ae43 |
| 01-Mar-2022 |
serge-sans-paille <[email protected]> |
Cleanup includes: TransformsUtils
Estimation on the impact on preprocessor output:
before: 1065307662
after: 1064800684
Discourse thread: https://discourse.llvm.org/t/include-what-you-use-include-
Cleanup includes: TransformsUtils
Estimation on the impact on preprocessor output:
before: 1065307662
after: 1064800684
Discourse thread: https://discourse.llvm.org/t/include-what-you-use-include-cleanup
Differential Revision: https://reviews.llvm.org/D120741
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a5bbc6ef |
| 23-Feb-2022 |
Bill Wendling <[email protected]> |
[NFC] Remove unnecessary "#include"s from header files
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Revision tags: llvmorg-14.0.0-rc1, llvmorg-15-init, llvmorg-13.0.1, llvmorg-13.0.1-rc3, llvmorg-13.0.1-rc2, llvmorg-13.0.1-rc1, llvmorg-13.0.0, llvmorg-13.0.0-rc4, llvmorg-13.0.0-rc3, llvmorg-13.0.0-rc2, llvmorg-13.0.0-rc1, llvmorg-14-init, llvmorg-12.0.1, llvmorg-12.0.1-rc4, llvmorg-12.0.1-rc3, llvmorg-12.0.1-rc2, llvmorg-12.0.1-rc1, llvmorg-12.0.0, llvmorg-12.0.0-rc5, llvmorg-12.0.0-rc4, llvmorg-12.0.0-rc3, llvmorg-12.0.0-rc2, llvmorg-11.1.0, llvmorg-11.1.0-rc3, llvmorg-12.0.0-rc1, llvmorg-13-init, llvmorg-11.1.0-rc2, llvmorg-11.1.0-rc1, llvmorg-11.0.1, llvmorg-11.0.1-rc2, llvmorg-11.0.1-rc1 |
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c17ae291 |
| 21-Oct-2020 |
Geoffrey Martin-Noble <[email protected]> |
Remove unnecessary header include which violates layering
This was introduced in https://reviews.llvm.org/D89774, but I don't
think it should be necessary.
Reviewed By: TaWeiTu, aeubanks
Different
Remove unnecessary header include which violates layering
This was introduced in https://reviews.llvm.org/D89774, but I don't
think it should be necessary.
Reviewed By: TaWeiTu, aeubanks
Differential Revision: https://reviews.llvm.org/D89843
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529ecd19 |
| 20-Oct-2020 |
Ta-Wei Tu <[email protected]> |
[NPM] port -unify-loop-exits to NPM
Reviewed By: aeubanks
Differential Revision: https://reviews.llvm.org/D89774
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Revision tags: llvmorg-11.0.0, llvmorg-11.0.0-rc6, llvmorg-11.0.0-rc5, llvmorg-11.0.0-rc4, llvmorg-11.0.0-rc3 |
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f7aa1563 |
| 15-Sep-2020 |
Arthur Eubanks <[email protected]> |
[LowerSwitch][NewPM] Port lowerswitch to NPM
Reviewed By: ychen
Differential Revision: https://reviews.llvm.org/D87726
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9a447607 |
| 11-Sep-2020 |
Jay Foad <[email protected]> |
[UnifyLoopExits] Fix non-deterministic iteration order
This was causing random minor codegen differences in shaders compiled
with the AMDGPU backend.
Differential Revision: https://reviews.llvm.org
[UnifyLoopExits] Fix non-deterministic iteration order
This was causing random minor codegen differences in shaders compiled
with the AMDGPU backend.
Differential Revision: https://reviews.llvm.org/D87548
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Revision tags: llvmorg-11.0.0-rc2, llvmorg-11.0.0-rc1, llvmorg-12-init |
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a19461d9 |
| 14-Jul-2020 |
Logan Smith <[email protected]> |
[NFC] Add 'override' keyword where missing in include/ and lib/.
This fixes warnings raised by Clang's new -Wsuggest-override, in preparation for enabling that warning in the LLVM build. This patch
[NFC] Add 'override' keyword where missing in include/ and lib/.
This fixes warnings raised by Clang's new -Wsuggest-override, in preparation for enabling that warning in the LLVM build. This patch also removes the virtual keyword where redundant, but only in places where doing so improves consistency within a given file. It also removes a couple unnecessary virtual destructor declarations in derived classes where the destructor inherited from the base class is already virtual.
Differential Revision: https://reviews.llvm.org/D83709
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Revision tags: llvmorg-10.0.1, llvmorg-10.0.1-rc4, llvmorg-10.0.1-rc3, llvmorg-10.0.1-rc2, llvmorg-10.0.1-rc1 |
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84887636 |
| 27-Apr-2020 |
Sameer Sahasrabuddhe <[email protected]> |
[NFC] UnifyLoopExits: correctly skip expensive checks
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3cbbded6 |
| 28-Mar-2020 |
Sameer Sahasrabuddhe <[email protected]> |
Introduce unify-loop-exits pass.
For each natural loop with multiple exit blocks, this pass creates a
new block N such that all exiting blocks now branch to N, and then
control flow is redistributed
Introduce unify-loop-exits pass.
For each natural loop with multiple exit blocks, this pass creates a
new block N such that all exiting blocks now branch to N, and then
control flow is redistributed to all the original exit blocks.
The bulk of the tranformation is a new function introduced in
BasicBlockUtils that an redirect control flow from a set of incoming
blocks to a set of outgoing blocks via a common "hub".
This is a useful workaround for a limitation in the structurizer which
incorrectly orders blocks when processing a nest of loops. This pass
bypasses that issue by ensuring that each natural loop is recognized
as a separate region. Since the structurizer is a region pass, it no
longer sees a nest of loops in a single region, and instead processes
each "level" in the nesting as a separate region.
The AMDGPU backend provides a new option to enable this pass before
the structurizer, which may eventually be enabled by default.
Reviewers: madhur13490, arsenm, nhaehnle
Reviewed By: nhaehnle
Differential Revision: https://reviews.llvm.org/D75865
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