llvm-project.git/llvm/lib/Target/CSKY/CSKYConstantIslandPass.cpp, branch users/nico/python-2

[NFC][CodeGen] Adopt MachineFunctionProperties convenience accessors (#141101)

2025-05-23T15:30:29+00:00

[NFC] Address bit-field storage sizes to ensure ideal packing (#139825)

2025-05-16T07:02:58+00:00

The MS bit-field packing ABI depends on the storage size of the type of
being placed in the bit-field. This PR addresses a number of cases in
llvm where the storage type has lead to suboptimal packing.

[CodeGen] Use optimized domtree for MachineFunction (#102107)

2024-08-06T11:46:19+00:00

The dominator tree gained an optimization to use block numbers instead
of a DenseMap to store blocks. Given that machine basic blocks already
have numbers, expose these via appropriate GraphTraits. For debugging,
block number epochs are added to MachineFunction -- this greatly helps
in finding uses of block numbers after RenumberBlocks().

In a few cases where dominator trees are preserved across renumberings,
the dominator tree is updated to use the new numbers.

[CodeGen][NewPM] Split `MachineDominatorTree` into a concrete analysis result (#94571)

2024-06-11T13:27:14+00:00

Prepare for new pass manager version of `MachineDominatorTreeAnalysis`.
We may need a machine dominator tree version of `DomTreeUpdater` to
handle `SplitCriticalEdge` in some CodeGen passes.

[CSKY] Lower ISD::ConstantPool node to support getting the address of ConstantPool entry

2022-11-21T02:37:20+00:00

When there is not GRS or MOVIH/ORI instruction, we can not get the address of
ConstantPool entry directly. So we need put the address into ConstantPool to leverage CSKY::LRW instruction.

[Target] use getSubtarget<> instead of static_cast<>(getSubtarget())

2022-05-26T18:22:41+00:00

Differential Revision: https://reviews.llvm.org/D125391

[CSKY] Fix some Clang warnings. NFC

2022-04-07T03:09:32+00:00

Reviewed By: zixuan-wu

Differential Revision: https://reviews.llvm.org/D122872

Cleanup codegen includes

2022-03-16T07:43:00+00:00

This is a (fixed) recommit of https://reviews.llvm.org/D121169

after:  1061034926
before: 1063332844

Discourse thread: https://discourse.llvm.org/t/include-what-you-use-include-cleanup
Differential Revision: https://reviews.llvm.org/D121681

[CSKY] Add floating operation support including float and double

2022-01-27T07:54:04+00:00

CSKY arch has multiple FPU instruction versions such as FPU, FPUv2 and FPUv3 to implement floating operations.
For now, we just only support FPUv2 and FPUv3.

It includes the encoding, asm parsing of instructions and codegen of DAG nodes.

[CSKY] Add CSKYConstantIslands Pass to lift or duplicate constant pool entry

2022-01-11T08:17:11+00:00

Loading constants inline is expensive on CSKY and it's in general better
to place the constant nearby in code space and then it can be loaded with a
simple 16/32 bit load instruction like lrw.

It needs lift or duplicates constant pool entry to make constant nearby so that lrw instruction can reach.