mirror of
https://github.com/c64scene-ar/llvm-6502.git
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9fe2009956
TargetInstrInfo: Change produceSameValue() to take MachineRegisterInfo as an optional argument. When in SSA form, targets can use it to make more aggressive equality analysis. Machine LICM: 1. Eliminate isLoadFromConstantMemory, use MI.isInvariantLoad instead. 2. Fix a bug which prevent CSE of instructions which are not re-materializable. 3. Use improved form of produceSameValue. ARM: 1. Teach ARM produceSameValue to look pass some PIC labels. 2. Look for operands from different loads of different constant pool entries which have same values. 3. Re-implement PIC GA materialization using movw + movt. Combine the pair with a "add pc" or "ldr [pc]" to form pseudo instructions. This makes it possible to re-materialize the instruction, allow machine LICM to hoist the set of instructions out of the loop and make it possible to CSE them. It's a bit hacky, but it significantly improve code quality. 4. Some minor bug fixes as well. With the fixes, using movw + movt to materialize GAs significantly outperform the load from constantpool method. 186.crafty and 255.vortex improved > 20%, 254.gap and 176.gcc ~10%. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@123905 91177308-0d34-0410-b5e6-96231b3b80d8 |
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| .. | ||
| ADT | ||
| Analysis | ||
| Assembly | ||
| Bitcode | ||
| CodeGen | ||
| CompilerDriver | ||
| Config | ||
| ExecutionEngine | ||
| MC | ||
| Object | ||
| Support | ||
| Target | ||
| Transforms | ||
| AbstractTypeUser.h | ||
| Argument.h | ||
| Attributes.h | ||
| AutoUpgrade.h | ||
| BasicBlock.h | ||
| CallGraphSCCPass.h | ||
| CallingConv.h | ||
| CMakeLists.txt | ||
| Constant.h | ||
| Constants.h | ||
| DerivedTypes.h | ||
| Function.h | ||
| GlobalAlias.h | ||
| GlobalValue.h | ||
| GlobalVariable.h | ||
| GVMaterializer.h | ||
| InitializePasses.h | ||
| InlineAsm.h | ||
| InstrTypes.h | ||
| Instruction.def | ||
| Instruction.h | ||
| Instructions.h | ||
| IntrinsicInst.h | ||
| Intrinsics.h | ||
| Intrinsics.td | ||
| IntrinsicsAlpha.td | ||
| IntrinsicsARM.td | ||
| IntrinsicsCellSPU.td | ||
| IntrinsicsPowerPC.td | ||
| IntrinsicsX86.td | ||
| IntrinsicsXCore.td | ||
| LinkAllPasses.h | ||
| LinkAllVMCore.h | ||
| Linker.h | ||
| LLVMContext.h | ||
| Metadata.h | ||
| Module.h | ||
| OperandTraits.h | ||
| Operator.h | ||
| Pass.h | ||
| PassAnalysisSupport.h | ||
| PassManager.h | ||
| PassManagers.h | ||
| PassRegistry.h | ||
| PassSupport.h | ||
| SymbolTableListTraits.h | ||
| Type.h | ||
| TypeSymbolTable.h | ||
| Use.h | ||
| User.h | ||
| Value.h | ||
| ValueSymbolTable.h | ||