[llvm] [ValueTracking] Use `ConstantRange::toKnownBits` when computing from Range Metadata; NFC (PR #85574)

[Yingwei Zheng via llvm-commits]

https://github.com/dtcxzyw requested changes to this pull request.

> Failed Tests (40):
  LLVM :: Analysis/ScalarEvolution/shift-op.ll
  LLVM :: Analysis/ValueTracking/known-bits-from-range-md.ll
  LLVM :: CodeGen/AArch64/GlobalISel/prelegalizer-combiner-icmp-to-true-false-known-bits.mir
  LLVM :: CodeGen/AArch64/setcc_knownbits.ll
  LLVM :: CodeGen/AMDGPU/array-ptr-calc-i32.ll
  LLVM :: CodeGen/AMDGPU/divrem24-assume.ll
  LLVM :: CodeGen/AMDGPU/global-saddr-load.ll
  LLVM :: CodeGen/AMDGPU/load-range-metadata-sign-bits.ll
  LLVM :: CodeGen/AMDGPU/simple-indirect-call.ll
  LLVM :: CodeGen/AMDGPU/waterfall_kills_scc.ll
  LLVM :: CodeGen/PowerPC/BreakableToken-reduced.ll
  LLVM :: CodeGen/PowerPC/global-address-non-got-indirect-access.ll
  LLVM :: CodeGen/X86/pr12360.ll
  LLVM :: CodeGen/X86/pr48458.ll
  LLVM :: CodeGen/X86/pr48888.ll
  LLVM :: Transforms/GuardWidening/range-check-merging.ll
  LLVM :: Transforms/IndVarSimplify/shift-range-checks.ll
  LLVM :: Transforms/InferAddressSpaces/AMDGPU/ptrmask.ll
  LLVM :: Transforms/InstCombine/ARM/mve-v2i2v.ll
  LLVM :: Transforms/InstCombine/add2.ll
  LLVM :: Transforms/InstCombine/binop-cast.ll
  LLVM :: Transforms/InstCombine/bitreverse-known-bits.ll
  LLVM :: Transforms/InstCombine/gep-sext.ll
  LLVM :: Transforms/InstCombine/icmp-range.ll
  LLVM :: Transforms/InstCombine/icmp_sdiv_with_and_without_range.ll
  LLVM :: Transforms/InstCombine/ldexp.ll
  LLVM :: Transforms/InstCombine/narrow-math.ll
  LLVM :: Transforms/InstCombine/pr12251.ll
  LLVM :: Transforms/InstCombine/pr75129.ll
  LLVM :: Transforms/InstCombine/zext.ll
  LLVM-Unit :: Analysis/./AnalysisTests/ComputeKnownBitsTest/ComputeKnownBitsAddWithRange
  LLVM-Unit :: Analysis/./AnalysisTests/ComputeKnownBitsTest/ComputeKnownBitsAddWithRangeNoOverlap
  LLVM-Unit :: Analysis/./AnalysisTests/ComputeKnownBitsTest/ComputeKnownBitsGEPWithRange
  LLVM-Unit :: Analysis/./AnalysisTests/ComputeKnownBitsTest/ComputeKnownBitsGEPWithRangeNoOverlap
  LLVM-Unit :: Analysis/./AnalysisTests/ComputeKnownBitsTest/ComputeKnownBitsReturnedRangeConflict
  LLVM-Unit :: Analysis/./AnalysisTests/ComputeKnownBitsTest/KnownNonZeroShift
  LLVM-Unit :: CodeGen/./CodeGenTests/AArch64SelectionDAGTest/computeKnownBits_extload_known01
  LLVM-Unit :: CodeGen/./CodeGenTests/AArch64SelectionDAGTest/computeKnownBits_extload_knownnegative
  LLVM-Unit :: CodeGen/GlobalISel/./GlobalISelTests/AArch64GISelMITest/TestMetadata
  LLVM-Unit :: CodeGen/GlobalISel/./GlobalISelTests/AArch64GISelMITest/TestVectorMetadata

https://github.com/llvm/llvm-project/pull/85574