Add Mcinst pretty dump and [ARM] dump SelectionDAG in the debug output

[sv99]

Improve debug output:

1. Add MCInst pretty dump - show instruction and register Instead of indexes
2. Add dump SelectionDAG in the ARM subsystem

[sv99]

I have some next work for moving to the OpaquePoiter (llvm-project [release/15.x] tag) - now not worked 7 tests - all other worked

[bharadwajy]

I have some next work for moving to the OpaquePoiter (llvm-project [release/15.x] tag) - now not worked 7 tests - all other worked

Sounds good.

Wanted to finish up clang-tidy related changes - which I pushed.

Please update the PR changes. Thanks!

[sv99]

PR rebased

[sv99]

What means [NFC] in the commit description?

[bharadwajy]

What means [NFC] in the commit description?

https://llvm.org/docs/Lexicon.html#n

[sv99]

Thanks

[sv99]

Next PR result

user@vm-ubuntu-204:~/work/llvm-project/build-debug [(HEAD detached at llvmorg-15.0.1)]$ ninja check-mctoll
...
********************
********************
Unsupported Tests (17):
  mctoll :: smoke_test/ARM/factorial-test.c
  mctoll :: smoke_test/ARM/fibfunc-test.c
  mctoll :: smoke_test/ARM/func-arg-liveness.c
  mctoll :: smoke_test/ARM/global-array-access.c
  mctoll :: smoke_test/ARM/globalvar-test.c
  mctoll :: smoke_test/ARM/hello.c
  mctoll :: smoke_test/ARM/short.c
  mctoll :: smoke_test/ARM/simple-phi-test.c
  mctoll :: smoke_test/ARM/strcmp-test.c
  mctoll :: smoke_test/ARM/switch_test.c
  mctoll :: smoke_test/ARM/test-1-test.c
  mctoll :: smoke_test/ARM/test-2-test.c
  mctoll :: smoke_test/ARM/test-3-test.c
  mctoll :: smoke_test/ARM/variadic-call-test.c
  mctoll :: unittests/ARM/FuncArgsAndReturn/seven_args.c
  mctoll :: unittests/ARM/FunctionPrototype/no_ret_and_args.c
  mctoll :: unittests/ARM/FunctionPrototype/six_args.c

********************
Failed Tests (7):
  mctoll :: asm_test/X86/raise-cmovns.s
  mctoll :: bug_fixes/issue-69.c
  mctoll :: bug_fixes/issue-70.c
  mctoll :: dhrystone/dhry.test
  mctoll :: smoke_test/global-array-access.c
  mctoll :: smoke_test/raise-not-regop-and-memop-inst.c
  mctoll :: smoke_test/simple-phi-test.c

Testing Time: 146.45s
  Unsupported      :  17
  Passed           : 214
  Expectedly Failed:   2
  Failed           :   7

[sv99]

[X86] Worked moving to opaquer pointer

user@vm-ubuntu-204:~/work/llvm-project/build-debug [(HEAD detached at llvmorg-15.0.1)]$ ninja check-mctoll
...
********************
********************
Unsupported Tests (4):
  mctoll :: smoke_test/ARM/switch_test.c
  mctoll :: unittests/ARM/FuncArgsAndReturn/seven_args.c
  mctoll :: unittests/ARM/FunctionPrototype/no_ret_and_args.c
  mctoll :: unittests/ARM/FunctionPrototype/six_args.c

********************
Failed Tests (6):
  mctoll :: smoke_test/ARM/func-arg-liveness.c
  mctoll :: smoke_test/ARM/global-array-access.c
  mctoll :: smoke_test/ARM/hello.c
  mctoll :: smoke_test/ARM/short.c
  mctoll :: smoke_test/ARM/strcmp-test.c
  mctoll :: smoke_test/ARM/variadic-call-test.c

Testing Time: 80.88s
  Unsupported      :   4
  Passed           : 227
  Expectedly Failed:   3
  Failed           :   6

[sv99]

?? Merging ??

[bharadwajy]

?? Merging ??

Reviewing...

[sv99]

This PR for ARM subsystem. Why does the arm use a different raising algorithm compared to X86 subsystem? Why the intermediate SelectionDAG is used?

[bharadwajy]

This PR for ARM subsystem. Why does the arm use a different raising algorithm compared to X86 subsystem? Why the intermediate SelectionDAG is used?

It was one of the contributed options considered during the earlier stages of the project. Unfortunately it was not followed through to keep pace with development to raise x64 binaries, for the lack of time/help/resources.

[sv99]

Corrected