[llvm-bugs] [Bug 33393] New: loop-rotate doesn't handle catchret in the preheader
llvm-bugs at lists.llvm.org
Fri Jun 9 16:10:35 PDT 2017
Bug ID: 33393
Summary: loop-rotate doesn't handle catchret in the preheader
OS: Windows NT
Component: new bugs
Assignee: unassignedbugs at nondot.org
Reporter: andrew.kaylor at intel.com
CC: llvm-bugs at lists.llvm.org
If loop-rotate wants to rotate a loop whose pre-header ends with a catchret
instruction (Windows EH specific), it replaces the catchret with a branch.
This results in code generation errors.
The attached IR file can be used to reproduce the problem.
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