[PATCH] D145208: [COFF] Add MC support for emitting IMAGE_WEAK_EXTERN_ANTI_DEPENDENCY symbols

[Arthur Eubanks via Phabricator via llvm-commits]

aeubanks added a comment.

this causes the following to crash

  $ cat /tmp/a.ll
  target datalayout = "e-m:w-p270:32:32-p271:32:32-p272:64:64-i64:64-f80:128-n8:16:32:64-S128"
  target triple = "x86_64-pc-windows-msvc19.16.0"
  
  @"__profc_?__libcpp_verbose_abort at Cr@std@@YAXPEBDZZ" = external global [1 x i64]
  @"__profd_?__libcpp_verbose_abort at Cr@std@@YAXPEBDZZ" = weak global { i64, i64, i64, ptr, ptr, i32, [2 x i16] } { i64 -1867311221809715712, i64 742261418966908927, i64 sub (i64 ptrtoint (ptr @"__profc_?__libcpp_verbose_abort at Cr@std@@YAXPEBDZZ" to i64), i64 ptrtoint (ptr @"__profd_?__libcpp_verbose_abort at Cr@std@@YAXPEBDZZ" to i64)), ptr @"?__libcpp_verbose_abort at Cr@std@@YAXPEBDZZ.local", ptr null, i32 1, [2 x i16] zeroinitializer }
  
  @"?__libcpp_verbose_abort at Cr@std@@YAXPEBDZZ.local" = private alias void (ptr, ...), ptr @"?__libcpp_verbose_abort at Cr@std@@YAXPEBDZZ"
  
  define weak void @"?__libcpp_verbose_abort at Cr@std@@YAXPEBDZZ"(...) {
  entry:
    unreachable
  }
  $ clang-cl -cc1 -triple x86_64-pc-windows-msvc19.16.0        -faddrsig -o /dev/null /tmp/a.ll -emit-obj
  clang-cl: ../../llvm/include/llvm/MC/MCSymbol.h:271: MCSection &llvm::MCSymbol::getSection() const: Assertion `isInSection() && "Invalid accessor!"' failed.                                       


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https://reviews.llvm.org/D145208