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Revision tags: 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 |
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7b3bbd83 |
| 09-Oct-2023 |
Jay Foad <jay.foad@amd.com> |
Revert "[CodeGen] Really renumber slot indexes before register allocation (#67038)"
This reverts commit 2501ae58e3bb9a70d279a56d7b3a0ed70a8a852c.
Reverted due to various buildbot failures.
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2501ae58 |
| 09-Oct-2023 |
Jay Foad <jay.foad@amd.com> |
[CodeGen] Really renumber slot indexes before register allocation (#67038)
PR #66334 tried to renumber slot indexes before register allocation, but
the numbering was still affected by list entries
[CodeGen] Really renumber slot indexes before register allocation (#67038)
PR #66334 tried to renumber slot indexes before register allocation, but
the numbering was still affected by list entries for instructions which
had been erased. Fix this to make the register allocator's live range
length heuristics even less dependent on the history of how instructions
have been added to and removed from SlotIndexes's maps.
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Revision tags: llvmorg-17.0.2, llvmorg-17.0.1, llvmorg-17.0.0 |
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e0919b18 |
| 13-Sep-2023 |
Jay Foad <jay.foad@amd.com> |
[CodeGen] Renumber slot indexes before register allocation (#66334)
RegAllocGreedy uses SlotIndexes::getApproxInstrDistance to approximate
the length of a live range for its heuristics. Renumbering
[CodeGen] Renumber slot indexes before register allocation (#66334)
RegAllocGreedy uses SlotIndexes::getApproxInstrDistance to approximate
the length of a live range for its heuristics. Renumbering all slot
indexes with the default instruction distance ensures that this estimate
will be as accurate as possible, and will not depend on the history of
how instructions have been added to and removed from SlotIndexes's maps.
This also means that enabling -early-live-intervals, which runs the
SlotIndexes analysis earlier, will not cause large amounts of churn due
to different register allocator decisions.
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e6b85c30 |
| 13-Sep-2023 |
Simon Pilgrim <llvm-dev@redking.me.uk> |
[DAG] FoldSetCC - add missing icmp(X,undef) -> isTrueWhenEqual case (REAPPLIED)
Followup to D59363 which failed to handle the icmp(X,undef) -> isTrueWhenEqual case - similar to llvm::ConstantFoldCom
[DAG] FoldSetCC - add missing icmp(X,undef) -> isTrueWhenEqual case (REAPPLIED)
Followup to D59363 which failed to handle the icmp(X,undef) -> isTrueWhenEqual case - similar to llvm::ConstantFoldCompareInstruction
As discussed on the review, this is affecting some previously reduced test cases, but will also prevent reductions from relying on this inconsistent behaviour in the future.
Reapplied after reversion at e1e3c75c7dad72 with a tweak to the pseudo-probe-peep.ll test
Differential Revision: https://reviews.llvm.org/D158068
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e1e3c75c |
| 13-Sep-2023 |
Simon Pilgrim <llvm-dev@redking.me.uk> |
Revert rG6c56cf71ee82ec3a28e0dfc2b751bd10c16929da "[DAG] FoldSetCC - add missing icmp(X,undef) -> isTrueWhenEqual case"
Need to address a missed test change
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6c56cf71 |
| 13-Sep-2023 |
Simon Pilgrim <llvm-dev@redking.me.uk> |
[DAG] FoldSetCC - add missing icmp(X,undef) -> isTrueWhenEqual case
Followup to D59363 which failed to handle the icmp(X,undef) -> isTrueWhenEqual case - similar to llvm::ConstantFoldCompareInstruct
[DAG] FoldSetCC - add missing icmp(X,undef) -> isTrueWhenEqual case
Followup to D59363 which failed to handle the icmp(X,undef) -> isTrueWhenEqual case - similar to llvm::ConstantFoldCompareInstruction
As discussed on the review, this is affecting some previously reduced test cases, but will also prevent reductions from relying on this inconsistent behaviour in the future.
Differential Revision: https://reviews.llvm.org/D158068
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Revision tags: 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 |
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2a832d0f |
| 24-Jan-2023 |
Yashwant Singh <Yashwant.Singh@amd.com> |
[AMDGPU] Add missing physical register check in SIFoldOperands::tryFoldLoad
tryFoldLoad() is not meant to work on physical registers moreover
use_nodbg_instructions(reg) makes the compiler buggy whe
[AMDGPU] Add missing physical register check in SIFoldOperands::tryFoldLoad
tryFoldLoad() is not meant to work on physical registers moreover
use_nodbg_instructions(reg) makes the compiler buggy when called with
physical reg
Fix for SWDEV-373493
Reviewed By: arsenm
Differential Revision: https://reviews.llvm.org/D141895
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