llvm-project.git/llvm/unittests/CodeGen/SelectionDAGPatternMatchTest.cpp, branch main

DAG: Handle poison in m_Undef (#168288)

2025-11-21T23:29:15+00:00

[DAG] Add generic m_TernaryOp() / m_c_TernaryOp() matchers (#165520)

2025-10-29T15:17:38+00:00

Similar to the m_BinOp/m_c_BinOp matchers, this patch introduces generic matchers for SelectionDAG nodes with three operands.

This includes:
- Adding m_TernaryOp() and m_c_TernaryOp() templates in SDPatternMatch.h.
- Adding comprehensive test coverage in SelectionDAGPatternMatchTest.cpp.

Fixes #165378

[DAG] Create SDPatternMatch method `m_SelectLike` to match `ISD::Select` and `ISD::VSelect` (#164069)

2025-10-22T09:49:34+00:00

Fixes #150019

Add m_SelectCCLike matcher to match SELECT_CC or SELECT with SETCC (#149646)

2025-08-01T09:12:05+00:00

Fix #147282 and  Follow-up to #148834

---------

Co-authored-by: Simon Pilgrim

[LLVM][SelectionDAG] Align poison/undef binop folds with IR. (#149334)

2025-07-30T10:20:30+00:00

The "at construction" binop folds in SelectionDAG::getNode() has
different behaviour when compared to the equivalent LLVM IR. This PR
makes the behaviour consistent while also extending the coverage to
include signed/unsigned max/min operations.

[AMDGPU] SelectionDAG divergence tracking should take into account Target divergency. (#147560)

2025-07-08T22:06:58+00:00

This is the next attempt to upstream this:
https://github.com/llvm/llvm-project/pull/144947
The las one caused build errors in AArch64.
Issue was resolved.

[DAG] SDPatternMatch - add matching for SELECT_CC patterns to min/max like matchers (#147071)

2025-07-08T20:38:44+00:00

Fixes #147083

[NFC] Remove redundant namespace qualifier in SelectionDAGPatternMatchTest (#147443)

2025-07-08T02:09:12+00:00

### Summary
This PR remove the extra llvm::SDPatternMatch prefix in
https://github.com/llvm/llvm-project/pull/147044

[DAG] SDPatternMatch m_Zero/m_One/m_AllOnes have inconsistent undef h… (#147044)

2025-07-07T14:04:54+00:00

### Summary
This PR resolves https://github.com/llvm/llvm-project/issues/146871 
This PR resolves https://github.com/llvm/llvm-project/issues/140745

Refactor m_Zero/m_One/m_AllOnes all use struct template function to
match and AllowUndefs=false as default.

Revert "[AMDGPU] SelectionDAG divergence tracking should take into account Target divergency. (#144947)"

2025-07-03T18:25:01+00:00

This reverts commit 8ac7210b7f0ad49ae7809bf6a9faf2f7433384b0.

This breaks the building the AArch64 backend, e.g. see
https://github.com/llvm/llvm-project/pull/144947

Revert to unbreak the build.

Also reverts follow-up commits 1e76f012db3ccfaa05e238812e572b5b6d12c17e.