[llvm-bugs] [Bug 33010] New: Crash in statepoint lowering after 297695

[via llvm-bugs]

https://bugs.llvm.org/show_bug.cgi?id=33010

            Bug ID: 33010
           Summary: Crash in statepoint lowering after 297695
           Product: libraries
           Version: trunk
          Hardware: PC
                OS: All
            Status: NEW
          Severity: enhancement
          Priority: P
         Component: Backend: X86
          Assignee: unassignedbugs at nondot.org
          Reporter: sanjoy at playingwithpointers.com
                CC: llvm-bugs at lists.llvm.org

After 297695, the following code causes llc to crash:

declare void @f()

define i32 addrspace(1)* @test(i32 addrspace(1)* %a, i32 addrspace(1)* %b, i1
%which) gc "statepoint-example" {
entry:
  %tok = tail call token (i64, i32, void ()*, i32, i32, ...)
@llvm.experimental.gc.statepoint.p0f_isVoidf(i64 0, i32 0, void ()* @f, i32 0,
i32 0, i32 0, i32 0, i32 addrspace(1)* %a, i32 addrspace(1)* %b)
  %a.r = tail call coldcc i8 addrspace(1)*
@llvm.experimental.gc.relocate.p1i8(token %tok, i32 7, i32 7) ; (%a, %a)
  %b.r = tail call coldcc i8 addrspace(1)*
@llvm.experimental.gc.relocate.p1i8(token %tok, i32 8, i32 8) ; (%b, %b)
  %cond.v = select i1 %which, i8 addrspace(1)* %a.r, i8 addrspace(1)* %b.r
  %cond = bitcast i8 addrspace(1)* %cond.v to i32 addrspace(1)*
  ret i32 addrspace(1)* %cond
}

declare token @llvm.experimental.gc.statepoint.p0f_isVoidf(i64, i32, void ()*,
i32, i32, ...)
declare i8 addrspace(1)* @llvm.experimental.gc.relocate.p1i8(token, i32, i32)

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