llvm-ve-1.17.0

llvm version is 12.0.0

Changes

• Change to use internal assembler by default
• Change to compile profiler library
• Support stores of the address of a label
• Update intrinsics
• Fix initializer visibility
• Support bcr %sy, 0, dist format in assembly
• Change to rematerialize instructions retrieve consant immediate values.
  This allows users to use more vector registeres without spilling.
• Optimize generated code using a fold immediate in a peephole optimization
  pass.
• Support a vector register constraint in inline assembler.
• Support jump tables.
• Optimize prologue/epilogue coeds.
• Fix a problem that vgt intrinsic ignores the value of 3rd immediate value
  operand and vsc intrinsic instruction ignores the value of 4th immediate
  value operand.
• Correct a problem that LVL instruction is not generated correctly after
  function calls.
• Change the default CPU name to "generic".
• Remove musl support.
• Merge hpce/develop branch.
• Add new vbrv/vldz/vpcnt intrinsics.