[llvm-bugs] [Bug 34259] New: LLVM intrinsic emitter should split Intrinsics.gen to minimize project rebuilds on Intrinsics*.td file chanes

[via llvm-bugs]

https://bugs.llvm.org/show_bug.cgi?id=34259

            Bug ID: 34259
           Summary: LLVM intrinsic emitter should split Intrinsics.gen to
                    minimize project rebuilds on Intrinsics*.td file
                    chanes
           Product: libraries
           Version: trunk
          Hardware: PC
                OS: Windows NT
            Status: NEW
          Severity: enhancement
          Priority: P
         Component: Core LLVM classes
          Assignee: unassignedbugs at nondot.org
          Reporter: rnk at google.com
                CC: llvm-bugs at lists.llvm.org

First, changing intrinsic properties (IntrNoMem, etc) is basically a
full-project rebuild. However, those properties aren't used to make the
intrinsic enums that most TUs need. Step 1 would be to split Intrinsics.gen
into IntrinsicEnums.gen and IntrinsicProperties.gen or something.

Step two would be to go further and eliminate the target-specific intrinsic
enums from the enum header, similar to how clang implements
DiagnosticSemaKinds.h etc, so that only code mucking with x86 intrinsics
includes the x86 intrinsic enums.

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