[llvm-bugs] [Bug 25828] New: MSVC: LLVM ERROR: No open frame (regression)

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Mon Dec 14 22:51:30 PST 2015


            Bug ID: 25828
           Summary: MSVC: LLVM ERROR: No open frame (regression)
           Product: libraries
           Version: trunk
          Hardware: PC
                OS: All
            Status: NEW
          Severity: normal
          Priority: P
         Component: Backend: X86
          Assignee: unassignedbugs at nondot.org
          Reporter: alex at crichton.co
                CC: llvm-bugs at lists.llvm.org
    Classification: Unclassified

When compiling the following IR with `llc -filetype=obj -relocation-model=pic`:

target triple = "i686-pc-windows-msvc"

define void @foo(i8) {
  switch i8 %0, label %bb2 [
    i8 1, label %bb1
    i8 2, label %bb2
    i8 3, label %bb3
    i8 4, label %bb4
    i8 5, label %bb5

  ret void

  ret void

  ret void

  ret void

  ret void

The error "LLVM ERROR: No open frame" is printed. A bisection pointed at
r254874 as the faulty commit, which looks like it was tweaking the calls around
that site as well?

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