[PATCH] D17208: [WinEH] Prevent EH state numbering from skipping nested cleanup pads that never return

[Andy Kaylor via llvm-commits]

andrew.w.kaylor created this revision.
andrew.w.kaylor added a reviewer: majnemer.
andrew.w.kaylor added a subscriber: llvm-commits.
andrew.w.kaylor set the repository for this revision to rL LLVM.

This patch addresses a problem with EH state numbering for C++ EH and SEH where a nested cleanup pad that is post-dominated by an unreachable instruction will be skipped by the EH state numbering routines.  This leads to an assertion failure later in the code generation process when we try to retrieve the EH state for that cleanup pad.

Repository:
  rL LLVM

http://reviews.llvm.org/D17208

Files:
  lib/CodeGen/WinEHPrepare.cpp
  test/CodeGen/WinEH/wineh-noret-cleanup.ll

-------------- next part --------------
A non-text attachment was scrubbed...
Name: D17208.47830.patch
Type: text/x-patch
Size: 5097 bytes
Desc: not available
URL: <http://lists.llvm.org/pipermail/llvm-commits/attachments/20160212/70aa1d4f/attachment.bin>