[llvm-bugs] [Bug 44999] New: assertion "SM->getFileID(Loc) == MacroFileID" in retrieveMacroLocation

[via llvm-bugs]

https://bugs.llvm.org/show_bug.cgi?id=44999

            Bug ID: 44999
           Summary: assertion "SM->getFileID(Loc) == MacroFileID" in
                    retrieveMacroLocation
           Product: clang
           Version: trunk
          Hardware: PC
                OS: Linux
            Status: NEW
          Severity: enhancement
          Priority: P
         Component: Frontend
          Assignee: unassignedclangbugs at nondot.org
          Reporter: joerg at NetBSD.org
                CC: llvm-bugs at lists.llvm.org, neeilans at live.com,
                    richard-llvm at metafoo.co.uk

Test case:

source.c:
  #define a(b, c) memset(b, 0, c)
  #define fontrom         (mem + FONT_ADRS)
  mem[];
  #include "header.h"
  d() {
    a(fontrom, sizeof(fontrom));
  }

header.h:
  #define FONT_ADRS       0x110000

This will trigger the assert because the range passed to DiagnosticRenderer.cpp
covers diferent file locations.

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