[llvm-bugs] [Bug 24906] New: deadargelim crashes

[via llvm-bugs]

https://llvm.org/bugs/show_bug.cgi?id=24906

            Bug ID: 24906
           Summary: deadargelim crashes
           Product: libraries
           Version: trunk
          Hardware: All
                OS: All
            Status: NEW
          Severity: normal
          Priority: P
         Component: Interprocedural Optimizations
          Assignee: unassignedbugs at nondot.org
          Reporter: sanxiyn at gmail.com
                CC: llvm-bugs at lists.llvm.org
    Classification: Unclassified

Created attachment 14922
  --> https://llvm.org/bugs/attachment.cgi?id=14922&action=edit
Test case

r248246.

Reduced from https://github.com/rust-lang/rust/issues/28066

$ opt -disable-output -deadargelim 28066.ll
Instruction does not dominate all uses!
  %oldret6 = insertvalue %s %oldret4, i32 %newret5, 1
  %tmp3 = phi %s [ %oldret6, %bb1 ], [ %oldret2, %bb2 ]
Instruction does not dominate all uses!
  %oldret2 = insertvalue %s %oldret, i32 %newret1, 1
  %tmp3 = phi %s [ %oldret6, %bb1 ], [ %oldret2, %bb2 ]
Instruction does not dominate all uses!
  %tmp1 = invoke { i32, i32 } @f()
          to label %bb3 unwind label %bb4
  %newret3 = extractvalue { i32, i32 } %tmp1, 0
Instruction does not dominate all uses!
  %tmp1 = invoke { i32, i32 } @f()
          to label %bb3 unwind label %bb4
  %newret5 = extractvalue { i32, i32 } %tmp1, 1
Instruction does not dominate all uses!
  %tmp2 = invoke { i32, i32 } @f()
          to label %bb3 unwind label %bb4
  %newret = extractvalue { i32, i32 } %tmp2, 0
Instruction does not dominate all uses!
  %tmp2 = invoke { i32, i32 } @f()
          to label %bb3 unwind label %bb4
  %newret1 = extractvalue { i32, i32 } %tmp2, 1
LLVM ERROR: Broken function found, compilation aborted!

-- 
You are receiving this mail because:
You are on the CC list for the bug.
-------------- next part --------------
An HTML attachment was scrubbed...
URL: <http://lists.llvm.org/pipermail/llvm-bugs/attachments/20150922/4e16a590/attachment.html>