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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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| .. | ||
| 2007-01-31-RegInfoAssert.ll | ||
| 2007-02-02-JoinIntervalsCrash.ll | ||
| 2007-03-06-AddR7.ll | ||
| 2007-05-05-InvalidPushPop.ll | ||
| 2009-06-18-ThumbCommuteMul.ll | ||
| 2009-07-19-SPDecBug.ll | ||
| 2009-07-20-TwoAddrBug.ll | ||
| 2009-07-27-PEIAssert.ll | ||
| 2009-08-12-ConstIslandAssert.ll | ||
| 2009-08-12-RegInfoAssert.ll | ||
| 2009-08-20-ISelBug.ll | ||
| 2009-12-17-pre-regalloc-taildup.ll | ||
| 2010-01-15-local-alloc-spill-physical.ll | ||
| 2010-04-07-DbgValueOtherTargets.ll | ||
| 2010-06-18-SibCallCrash.ll | ||
| 2010-07-01-FuncAlign.ll | ||
| 2010-07-15-debugOrdering.ll | ||
| 2011-EpilogueBug.ll | ||
| asmprinter-bug.ll | ||
| barrier.ll | ||
| dg.exp | ||
| dyn-stackalloc.ll | ||
| fpconv.ll | ||
| fpow.ll | ||
| frame_thumb.ll | ||
| iabs.ll | ||
| inlineasm-imm-thumb.ll | ||
| ispositive.ll | ||
| large-stack.ll | ||
| ldr_ext.ll | ||
| ldr_frame.ll | ||
| long_shift.ll | ||
| long-setcc.ll | ||
| long.ll | ||
| mul.ll | ||
| pop.ll | ||
| push.ll | ||
| select.ll | ||
| stack-frame.ll | ||
| thumb-imm.ll | ||
| trap.ll | ||
| tst_teq.ll | ||
| unord.ll | ||
| vargs.ll | ||