[llvm] [llvm-debuginfo-analyzer] Add support for LLVM IR format. (PR #135440)

[Javier Lopez-Gomez via llvm-commits]

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@@ -2131,6 +2132,166 @@ layout and given the number of matches.
   -----------------------------
   Total           71          8
 
+IR (Textual representation and bitcode) SUPPORT
+~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
+The below example is used to show the IR output generated by
+:program:`llvm-debuginfo-analyzer`. We compiled the example for a
+IR 64-bit target with Clang (-O0 -g --target=x86_64-linux):
+
+.. code-block:: c++
+
+  1  using INTPTR = const int *;
+  2  int foo(INTPTR ParamPtr, unsigned ParamUnsigned, bool ParamBool) {
+  3    if (ParamBool) {
+  4      typedef int INTEGER;
+  5      const INTEGER CONSTANT = 7;
+  6      return CONSTANT;
+  7    }
+  8    return ParamUnsigned;
+  9  }
+
+PRINT BASIC DETAILS
+^^^^^^^^^^^^^^^^^^^
+The following command prints basic details for all the logical elements
+sorted by the debug information internal offset; it includes its lexical
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jalopezg-git wrote:

Does it make sense to use `--output-sort=id` now?

https://github.com/llvm/llvm-project/pull/135440