Index: llvm/lib/CodeGen/SplitKit.cpp
===================================================================
--- llvm/lib/CodeGen/SplitKit.cpp
+++ llvm/lib/CodeGen/SplitKit.cpp
@@ -702,6 +702,23 @@
     LLVM_DEBUG(dbgs() << ": not live\n");
     return End;
   }
+  SlotIndex LSP = SA.getLastSplitPoint(&MBB);
+  if (LSP < Last) {
+    // It could be that the use after LSP is a def, and thus the ParentVNI
+    // just selected starts at that def.  For this case to exist, the def
+    // must be part of a tied def/use pair (as otherwise we'd have split
+    // distinct live ranges into individual live intervals), and thus we
+    // can insert the def into the VNI of the use and the tied def/use
+    // pair can live in the resulting interval.
+    Last = LSP;
+    ParentVNI = Edit->getParent().getVNInfoAt(Last);
+    if (!ParentVNI) {
+      // undef use --> undef tied def
+      LLVM_DEBUG(dbgs() << ": tied use not live\n");
+      return End;
+    }
+  }
+
   LLVM_DEBUG(dbgs() << ": valno " << ParentVNI->id);
   VNInfo *VNI = defFromParent(OpenIdx, ParentVNI, Last, MBB,
                               SA.getLastSplitPointIter(&MBB));
Index: llvm/test/CodeGen/X86/statepoint-invoke-ra-enter-at-end.mir
===================================================================
--- /dev/null
+++ llvm/test/CodeGen/X86/statepoint-invoke-ra-enter-at-end.mir
@@ -0,0 +1,492 @@
+# NOTE: Assertions have been autogenerated by utils/update_mir_test_checks.py
+# RUN: llc -x mir -o - %s -run-pass=greedy -verify-regalloc 2>&1 | FileCheck %s
+
+# CHECK-NOT: Bad Parent VNI
+--- |
+  ; ModuleID = './statepoint-invoke-ra2.ll'
+  source_filename = "./statepoint-invoke-ra2.ll"
+  target datalayout = "e-m:e-p270:32:32-p271:32:32-p272:64:64-i64:64-f80:128-n8:16:32:64-S128"
+  target triple = "x86_64-unknown-linux-gnu"
+
+  @global = external global i8 addrspace(1)*, align 8
+  @global.1 = external global i8 addrspace(1)*, align 8
+
+  define void @bar(i8 addrspace(1)* %arg) gc "statepoint-example" personality i32* ()* @zot {
+  bb:
+    %tmp = inttoptr i64 undef to i8 addrspace(1)*
+    br label %bb1
+
+  bb1:                                              ; preds = %bb64, %bb
+    %tmp3 = call token (i64, i32, void ()*, i32, i32, ...) @llvm.experimental.gc.statepoint.p0f_isVoidf(i64 2, i32 5, void ()* nonnull @wibble, i32 0, i32 0, i32 0, i32 0) [ "deopt"(i32 0, i32 2, i32 0, i32 0, i32 0, i32 1, i32 0, i32 7, i8* null, i32 2, i32 1, i32 0, i32 0, i32 5, i32 0, i32 7, i8* null, i32 7, i8* null, i32 7, i8* null, i32 7, i8* null, i32 7, i8* null), "gc-live"(i8 addrspace(1)* %tmp) ]
+    %tmp4 = call coldcc i8 addrspace(1)* @llvm.experimental.gc.relocate.p1i8(token %tmp3, i32 0, i32 0) ; (%tmp, %tmp)
+    %tmp5 = call token (i64, i32, void (i8 addrspace(1)*)*, i32, i32, ...) @llvm.experimental.gc.statepoint.p0f_isVoidp1i8f(i64 2882400000, i32 0, void (i8 addrspace(1)*)* nonnull @barney, i32 1, i32 0, i8 addrspace(1)* undef, i32 0, i32 0) [ "deopt"(i32 0, i32 2, i32 0, i32 0, i32 0, i32 1, i32 0, i32 7, i8* null, i32 9, i32 1, i32 9, i32 0, i32 5, i32 1, i32 7, i8* null, i32 8, i32 2, i32 7, i8* null, i32 7, i8* null, i32 7, i8* null, i32 8, i32 2), "gc-live"(i8 addrspace(1)* undef, i8 addrspace(1)* %tmp4) ]
+    %tmp6 = call coldcc i8 addrspace(1)* @llvm.experimental.gc.relocate.p1i8(token %tmp5, i32 1, i32 1) ; (%tmp4, %tmp4)
+    %tmp7 = call token (i64, i32, i8 addrspace(1)* ()*, i32, i32, ...) @llvm.experimental.gc.statepoint.p0f_p1i8f(i64 2, i32 5, i8 addrspace(1)* ()* nonnull @blam, i32 0, i32 0, i32 0, i32 0) [ "deopt"(i32 0, i32 2, i32 0, i32 0, i32 0, i32 1, i32 0, i32 7, i8* null, i32 10, i32 1, i32 9, i32 0, i32 5, i32 1, i32 7, i8* null, i32 8, i32 2, i32 7, i8* null, i32 7, i8* null, i32 7, i8* null, i32 8, i32 2), "gc-live"(i8 addrspace(1)* %tmp6, i8 addrspace(1)* undef) ]
+    %tmp8 = call align 8 "java-type-kid"="69" i8 addrspace(1)* @llvm.experimental.gc.result.p1i8(token %tmp7)
+    %tmp9 = call coldcc i8 addrspace(1)* @llvm.experimental.gc.relocate.p1i8(token %tmp7, i32 0, i32 0) ; (%tmp6, %tmp6)
+    br i1 undef, label %bb64, label %bb10
+
+  bb10:                                             ; preds = %bb1
+    %tmp11 = inttoptr i64 undef to i8 addrspace(1)*
+    %tmp12 = call i8 addrspace(1)* @wobble.3(i8 addrspace(1)* undef, i8 addrspace(1)* addrspace(1)* undef)
+    %tmp13 = select i1 false, i8 addrspace(1)* null, i8 addrspace(1)* %tmp12
+    %tmp14 = extractvalue { i32, i1 } undef, 1
+    br i1 %tmp14, label %bb17, label %bb15
+
+  bb15:                                             ; preds = %bb10
+    %tmp16 = call token (i64, i32, void (i8 addrspace(1)*)*, i32, i32, ...) @llvm.experimental.gc.statepoint.p0f_isVoidp1i8f(i64 2882400000, i32 0, void (i8 addrspace(1)*)* nonnull @barney, i32 1, i32 0, i8 addrspace(1)* undef, i32 0, i32 0) [ "deopt"(i32 0, i32 2, i32 0, i32 0, i32 0, i32 1, i32 0, i32 7, i8* null, i32 2, i32 1, i32 71, i32 0, i32 5, i32 0, i32 0, i8 addrspace(1)* %tmp13, i32 7, i8* null, i32 7, i8* null, i32 7, i8* null, i32 7, i8* null, i32 2, i32 5, i32 1, i32 0, i32 2, i32 0, i32 0, i8 addrspace(1)* %tmp8, i32 7, i8* null, i32 1, i32 6, i32 0, i32 0, i32 1, i32 1, i32 0, i8 addrspace(1)* %tmp8, i32 8, i32 10), "gc-live"(i8 addrspace(1)* %tmp9, i8 addrspace(1)* %tmp13, i8 addrspace(1)* %tmp11, i8 addrspace(1)* undef, i8 addrspace(1)* %tmp8) ]
+    unreachable
+
+  bb17:                                             ; preds = %bb10
+    %tmp18 = load atomic i32, i32 addrspace(1)* undef unordered, align 4
+    %tmp19 = and i32 %tmp18, 33554431
+    %tmp20 = invoke token (i64, i32, void (i32, i8 addrspace(1)*)*, i32, i32, ...) @llvm.experimental.gc.statepoint.p0f_isVoidi32p1i8f(i64 1, i32 16, void (i32, i8 addrspace(1)*)* nonnull @spam, i32 2, i32 0, i32 %tmp19, i8 addrspace(1)* nonnull undef, i32 0, i32 0) [ "deopt"(i32 0, i32 2, i32 0, i32 0, i32 0, i32 1, i32 0, i32 7, i8* null, i32 2, i32 1, i32 71, i32 0, i32 5, i32 0, i32 0, i8 addrspace(1)* %tmp13, i32 7, i8* null, i32 7, i8* null, i32 7, i8* null, i32 7, i8* null, i32 8, i32 5, i32 12, i32 0, i32 2, i32 0, i32 0, i8 addrspace(1)* %tmp8, i32 7, i8* null), "gc-live"(i8 addrspace(1)* %tmp9, i8 addrspace(1)* %tmp13, i8 addrspace(1)* %tmp13, i8 addrspace(1)* %tmp11, i8 addrspace(1)* %tmp8, i8 addrspace(1)* undef) ]
+            to label %bb21 unwind label %bb59
+
+  bb21:                                             ; preds = %bb17
+    %tmp22 = call coldcc i8 addrspace(1)* @llvm.experimental.gc.relocate.p1i8(token %tmp20, i32 0, i32 0) ; (%tmp9, %tmp9)
+    %tmp23 = call coldcc i8 addrspace(1)* @llvm.experimental.gc.relocate.p1i8(token %tmp20, i32 1, i32 1) ; (%tmp13, %tmp13)
+    %tmp24 = call coldcc i8 addrspace(1)* @llvm.experimental.gc.relocate.p1i8(token %tmp20, i32 3, i32 3) ; (%tmp11, %tmp11)
+    %tmp25 = load atomic i8 addrspace(1)*, i8 addrspace(1)** @global unordered, align 8
+    %tmp26 = ptrtoint i8 addrspace(1)* %tmp25 to i64
+    %tmp27 = xor i64 %tmp26, -1
+    %tmp28 = inttoptr i64 %tmp27 to i8 addrspace(1)*
+    %tmp29 = call token (i64, i32, void (i8 addrspace(1)*)*, i32, i32, ...) @llvm.experimental.gc.statepoint.p0f_isVoidp1i8f(i64 2, i32 5, void (i8 addrspace(1)*)* nonnull @baz, i32 1, i32 0, i8 addrspace(1)* undef, i32 0, i32 0) [ "deopt"(i32 0, i32 2, i32 0, i32 0, i32 0, i32 1, i32 0, i32 7, i8* null, i32 10, i32 1, i32 83, i32 0, i32 5, i32 1, i32 0, i8 addrspace(1)* %tmp23, i32 7, i8* null, i32 8, i32 2, i32 7, i8* null, i32 7, i8* null, i32 8, i32 2), "gc-live"(i8 addrspace(1)* %tmp22, i8 addrspace(1)* %tmp23, i8 addrspace(1)* %tmp23, i8 addrspace(1)* %tmp24, i8 addrspace(1)* %tmp28) ]
+    %tmp30 = call coldcc i8 addrspace(1)* @llvm.experimental.gc.relocate.p1i8(token %tmp29, i32 1, i32 2) ; (%tmp23, %tmp23)
+    %tmp31 = call coldcc i8 addrspace(1)* @llvm.experimental.gc.relocate.p1i8(token %tmp29, i32 4, i32 4) ; (%tmp28, %tmp28)
+    %tmp45 = load atomic i8 addrspace(1)*, i8 addrspace(1)** @global.1 unordered, align 8
+    %tmp49 = load i32, i32 addrspace(256)* inttoptr (i64 660 to i32 addrspace(256)*), align 4
+    %tmp32 = icmp eq i8 addrspace(1)* %tmp30, null
+    br i1 %tmp32, label %bb64, label %bb33.preheader
+
+  bb33.preheader:                                   ; preds = %bb21
+    br label %bb33
+
+  bb33:                                             ; preds = %bb33.preheader, %bb33
+    %tmp34 = phi i8 addrspace(1)* [ %tmp57, %bb33 ], [ undef, %bb33.preheader ]
+    %tmp35 = phi i64 [ %tmp37, %bb33 ], [ 0, %bb33.preheader ]
+    %tmp37 = add nuw nsw i64 %tmp35, 1
+    %tmp38 = load atomic i8 addrspace(1)*, i8 addrspace(1)* addrspace(1)* undef unordered, align 8
+    %tmp39 = ptrtoint i8 addrspace(1)* %tmp38 to i64
+    %tmp40 = xor i64 %tmp39, -1
+    %tmp41 = inttoptr i64 %tmp40 to i8 addrspace(1)*
+    %tmp42 = select i1 false, i8 addrspace(1)* null, i8 addrspace(1)* %tmp41
+    %tmp43 = icmp eq i8 addrspace(1)* %tmp42, %tmp30
+    %tmp44 = select i1 %tmp43, i8 addrspace(1)* null, i8 addrspace(1)* %tmp42
+    call void asm sideeffect "lock btsq $0,($1)", "r,r,~{cc},~{dirflag},~{fpsr},~{flags}"(i64 0, i64* undef)
+    %tmp46 = ptrtoint i8 addrspace(1)* %tmp45 to i64
+    %tmp47 = xor i64 %tmp46, -1
+    %tmp48 = inttoptr i64 %tmp47 to i8 addrspace(1)*
+    %tmp50 = or i32 %tmp49, 268435456
+    %tmp51 = cmpxchg i32 addrspace(1)* undef, i32 undef, i32 %tmp50 acquire monotonic, align 4
+    call void @wobble(i8 addrspace(1)* nonnull %tmp48)
+    %tmp52 = load atomic i8 addrspace(1)*, i8 addrspace(1)** @global unordered, align 8
+    %tmp53 = ptrtoint i8 addrspace(1)* %tmp52 to i64
+    %tmp54 = xor i64 %tmp53, -1
+    %tmp55 = inttoptr i64 %tmp54 to i8 addrspace(1)*
+    %tmp56 = call token (i64, i32, void (i8 addrspace(1)*)*, i32, i32, ...) @llvm.experimental.gc.statepoint.p0f_isVoidp1i8f(i64 2, i32 5, void (i8 addrspace(1)*)* nonnull @baz, i32 1, i32 0, i8 addrspace(1)* %tmp55, i32 0, i32 0) [ "deopt"(i32 0, i32 2, i32 0, i32 0, i32 0, i32 1, i32 0, i32 7, i8* null, i32 10, i32 1, i32 83, i32 0, i32 5, i32 1, i32 0, i8 addrspace(1)* %tmp44, i32 7, i8* null, i32 8, i32 2, i32 7, i8* null, i32 7, i8* null, i32 8, i32 2), "gc-live"(i8 addrspace(1)* undef, i8 addrspace(1)* %tmp44, i8 addrspace(1)* %tmp44, i8 addrspace(1)* %tmp34, i8 addrspace(1)* undef) ]
+    %tmp57 = call coldcc i8 addrspace(1)* @llvm.experimental.gc.relocate.p1i8(token %tmp56, i32 3, i32 3) ; (%tmp34, %tmp34)
+    br label %bb33
+
+  bb59:                                             ; preds = %bb17
+    %tmp60 = landingpad token
+            cleanup
+    %tmp61 = call coldcc i8 addrspace(1)* @llvm.experimental.gc.relocate.p1i8(token %tmp60, i32 1, i32 2) ; (%tmp13, %tmp13)
+    %tmp62 = call coldcc i8 addrspace(1)* @llvm.experimental.gc.relocate.p1i8(token %tmp60, i32 4, i32 4) ; (%tmp8, %tmp8)
+    %tmp63 = call token (i64, i32, void (i32)*, i32, i32, ...) @llvm.experimental.gc.statepoint.p0f_isVoidi32f(i64 2882400000, i32 0, void (i32)* bitcast (void (i64)* @barney.2 to void (i32)*), i32 1, i32 2, i32 -13, i32 0, i32 0) [ "deopt"(i32 0, i32 2, i32 0, i32 0, i32 0, i32 1, i32 0, i32 7, i8* null, i32 2, i32 1, i32 71, i32 0, i32 5, i32 0, i32 0, i8 addrspace(1)* %tmp61, i32 7, i8* null, i32 7, i8* null, i32 7, i8* null, i32 7, i8* null, i32 1, i32 5, i32 21, i32 0, i32 2, i32 0, i32 0, i8 addrspace(1)* %tmp62, i32 0, i8 addrspace(1)* undef), "gc-live"() ]
+    unreachable
+
+  bb64:                                             ; preds = %bb21, %bb1
+    %tmp65 = or i32 undef, 268435456
+    %tmp66 = cmpxchg i32 addrspace(1)* undef, i32 undef, i32 %tmp65 acquire monotonic, align 4
+    %tmp67 = call token (i64, i32, void (i8 addrspace(1)*)*, i32, i32, ...) @llvm.experimental.gc.statepoint.p0f_isVoidp1i8f(i64 2, i32 5, void (i8 addrspace(1)*)* nonnull @baz, i32 1, i32 0, i8 addrspace(1)* undef, i32 0, i32 0) [ "deopt"(i32 0, i32 2, i32 0, i32 0, i32 0, i32 1, i32 0, i32 7, i8* null, i32 10, i32 1, i32 133, i32 0, i32 5, i32 1, i32 7, i8* null, i32 8, i32 2, i32 7, i8* null, i32 7, i8* null, i32 7, i8* null, i32 8, i32 2), "gc-live"(i8 addrspace(1)* undef, i8 addrspace(1)* undef) ]
+    br label %bb1
+  }
+
+  declare i32* @zot()
+
+  declare void @wibble() gc "statepoint-example"
+
+  declare i8 addrspace(1)* @blam() gc "statepoint-example"
+
+  declare void @baz(i8 addrspace(1)*) gc "statepoint-example"
+
+  declare void @spam(i32, i8 addrspace(1)*)
+
+  declare void @wobble(i8 addrspace(1)*)
+
+  declare void @barney(i8 addrspace(1)*)
+
+  declare token @llvm.experimental.gc.statepoint.p0f_isVoidf(i64 immarg, i32 immarg, void ()*, i32 immarg, i32 immarg, ...)
+
+  ; Function Attrs: nounwind readnone
+  declare i8 addrspace(1)* @llvm.experimental.gc.relocate.p1i8(token, i32 immarg, i32 immarg) #0
+
+  declare token @llvm.experimental.gc.statepoint.p0f_isVoidp1i8f(i64 immarg, i32 immarg, void (i8 addrspace(1)*)*, i32 immarg, i32 immarg, ...)
+
+  declare token @llvm.experimental.gc.statepoint.p0f_p1i8f(i64 immarg, i32 immarg, i8 addrspace(1)* ()*, i32 immarg, i32 immarg, ...)
+
+  ; Function Attrs: nounwind readnone
+  declare i8 addrspace(1)* @llvm.experimental.gc.result.p1i8(token) #0
+
+  declare token @llvm.experimental.gc.statepoint.p0f_isVoidi32p1i8f(i64 immarg, i32 immarg, void (i32, i8 addrspace(1)*)*, i32 immarg, i32 immarg, ...)
+
+  declare void @barney.2(i64)
+
+  declare token @llvm.experimental.gc.statepoint.p0f_isVoidi32f(i64 immarg, i32 immarg, void (i32)*, i32 immarg, i32 immarg, ...)
+
+  declare i8 addrspace(1)* @wobble.3(i8 addrspace(1)*, i8 addrspace(1)* addrspace(1)*)
+
+  attributes #0 = { nounwind readnone }
+
+...
+---
+name:            bar
+alignment:       16
+exposesReturnsTwice: false
+legalized:       false
+regBankSelected: false
+selected:        false
+failedISel:      false
+tracksRegLiveness: true
+hasWinCFI:       false
+registers:
+  - { id: 0, class: gr64, preferred-register: '' }
+  - { id: 1, class: gr64, preferred-register: '' }
+  - { id: 2, class: gr64, preferred-register: '' }
+  - { id: 3, class: gr64, preferred-register: '' }
+  - { id: 4, class: gr64, preferred-register: '' }
+  - { id: 5, class: gr64, preferred-register: '' }
+  - { id: 6, class: gr64, preferred-register: '' }
+  - { id: 7, class: gr32, preferred-register: '' }
+  - { id: 8, class: gr64, preferred-register: '' }
+  - { id: 9, class: gr64, preferred-register: '' }
+  - { id: 10, class: gr64, preferred-register: '' }
+  - { id: 11, class: gr64, preferred-register: '' }
+  - { id: 12, class: gr64, preferred-register: '' }
+  - { id: 13, class: gr64, preferred-register: '' }
+  - { id: 14, class: gr64, preferred-register: '' }
+  - { id: 15, class: gr64, preferred-register: '' }
+  - { id: 16, class: gr64, preferred-register: '' }
+  - { id: 17, class: gr64, preferred-register: '' }
+  - { id: 18, class: gr64, preferred-register: '' }
+  - { id: 19, class: gr64, preferred-register: '' }
+  - { id: 20, class: gr32, preferred-register: '' }
+  - { id: 21, class: gr8, preferred-register: '' }
+  - { id: 22, class: gr64, preferred-register: '' }
+  - { id: 23, class: gr64, preferred-register: '' }
+  - { id: 24, class: gr64, preferred-register: '' }
+  - { id: 25, class: gr32, preferred-register: '' }
+  - { id: 26, class: gr8, preferred-register: '' }
+  - { id: 27, class: gr64, preferred-register: '' }
+  - { id: 28, class: gr64, preferred-register: '' }
+  - { id: 29, class: gr64, preferred-register: '' }
+  - { id: 30, class: gr64, preferred-register: '' }
+  - { id: 31, class: gr64, preferred-register: '' }
+  - { id: 32, class: gr64, preferred-register: '' }
+  - { id: 33, class: gr64, preferred-register: '' }
+  - { id: 34, class: gr32, preferred-register: '' }
+  - { id: 35, class: gr64, preferred-register: '' }
+  - { id: 36, class: gr32, preferred-register: '' }
+  - { id: 37, class: gr64, preferred-register: '' }
+  - { id: 38, class: gr64, preferred-register: '' }
+  - { id: 39, class: gr64, preferred-register: '' }
+  - { id: 40, class: gr64, preferred-register: '' }
+  - { id: 41, class: gr32, preferred-register: '' }
+  - { id: 42, class: gr64, preferred-register: '' }
+  - { id: 43, class: gr64, preferred-register: '' }
+  - { id: 44, class: gr64, preferred-register: '' }
+  - { id: 45, class: gr64, preferred-register: '' }
+  - { id: 46, class: gr64, preferred-register: '' }
+  - { id: 47, class: gr64, preferred-register: '' }
+  - { id: 48, class: gr64, preferred-register: '' }
+  - { id: 49, class: gr64, preferred-register: '' }
+  - { id: 50, class: gr64, preferred-register: '' }
+  - { id: 51, class: gr64, preferred-register: '' }
+  - { id: 52, class: gr64, preferred-register: '' }
+  - { id: 53, class: gr64_with_sub_8bit, preferred-register: '' }
+  - { id: 54, class: gr32, preferred-register: '' }
+  - { id: 55, class: gr64_with_sub_8bit, preferred-register: '' }
+  - { id: 56, class: gr64, preferred-register: '' }
+  - { id: 57, class: gr64, preferred-register: '' }
+  - { id: 58, class: gr64, preferred-register: '' }
+  - { id: 59, class: gr64, preferred-register: '' }
+  - { id: 60, class: gr64, preferred-register: '' }
+  - { id: 61, class: gr32, preferred-register: '' }
+  - { id: 62, class: gr64, preferred-register: '' }
+  - { id: 63, class: gr64, preferred-register: '' }
+  - { id: 64, class: gr64, preferred-register: '' }
+  - { id: 65, class: gr32, preferred-register: '' }
+  - { id: 66, class: gr32, preferred-register: '' }
+  - { id: 67, class: gr64, preferred-register: '' }
+  - { id: 68, class: gr32, preferred-register: '' }
+  - { id: 69, class: gr64, preferred-register: '' }
+  - { id: 70, class: gr64, preferred-register: '' }
+  - { id: 71, class: gr64, preferred-register: '' }
+  - { id: 72, class: gr64, preferred-register: '' }
+  - { id: 73, class: gr64, preferred-register: '' }
+  - { id: 74, class: gr32, preferred-register: '' }
+  - { id: 75, class: gr32, preferred-register: '' }
+  - { id: 76, class: gr64, preferred-register: '' }
+  - { id: 77, class: gr32, preferred-register: '' }
+  - { id: 78, class: gr64, preferred-register: '' }
+  - { id: 79, class: gr64, preferred-register: '' }
+  - { id: 80, class: gr64, preferred-register: '' }
+  - { id: 81, class: gr64_with_sub_8bit, preferred-register: '' }
+liveins:         []
+frameInfo:
+  isFrameAddressTaken: false
+  isReturnAddressTaken: false
+  hasStackMap:     false
+  hasPatchPoint:   false
+  stackSize:       0
+  offsetAdjustment: 0
+  maxAlignment:    1
+  adjustsStack:    false
+  hasCalls:        true
+  stackProtector:  ''
+  maxCallFrameSize: 4294967295
+  cvBytesOfCalleeSavedRegisters: 0
+  hasOpaqueSPAdjustment: false
+  hasVAStart:      false
+  hasMustTailInVarArgFunc: false
+  hasTailCall:     false
+  localFrameSize:  0
+  savePoint:       ''
+  restorePoint:    ''
+fixedStack:      []
+stack:           []
+callSites:       []
+debugValueSubstitutions: []
+constants:       []
+machineFunctionInfo: {}
+body:             |
+  ; CHECK-LABEL: name: bar
+  ; CHECK: bb.0.bb:
+  ; CHECK:   successors: %bb.1(0x80000000)
+  ; CHECK:   [[MOV32r0_:%[0-9]+]]:gr32 = MOV32r0 implicit-def dead $eflags
+  ; CHECK:   [[MOV32ri:%[0-9]+]]:gr32 = MOV32ri -1
+  ; CHECK: bb.1.bb1:
+  ; CHECK:   successors: %bb.9(0x40000000), %bb.2(0x40000000)
+  ; CHECK:   ADJCALLSTACKDOWN64 0, 0, 0, implicit-def dead $rsp, implicit-def dead $eflags, implicit-def dead $ssp, implicit $rsp, implicit $ssp
+  ; CHECK:   [[STATEPOINT:%[0-9]+]]:gr64 = STATEPOINT 2, 5, 0, undef %16:gr64, 2, 0, 2, 0, 2, 25, 2, 0, 2, 2, 2, 0, 2, 0, 2, 0, 2, 1, 2, 0, 2, 7, 2, 0, 2, 2, 2, 1, 2, 0, 2, 0, 2, 5, 2, 0, 2, 7, 2, 0, 2, 7, 2, 0, 2, 7, 2, 0, 2, 7, 2, 0, 2, 7, 2, 0, 2, 1, undef [[STATEPOINT]](tied-def 0), 2, 0, 2, 1, 0, 0, csr_64, implicit-def $rsp, implicit-def $ssp
+  ; CHECK:   ADJCALLSTACKUP64 0, 0, implicit-def dead $rsp, implicit-def dead $eflags, implicit-def dead $ssp, implicit $rsp, implicit $ssp
+  ; CHECK:   ADJCALLSTACKDOWN64 0, 0, 0, implicit-def dead $rsp, implicit-def dead $eflags, implicit-def dead $ssp, implicit $rsp, implicit $ssp
+  ; CHECK:   [[STATEPOINT1:%[0-9]+]]:gr64 = STATEPOINT 2882400000, 0, 1, target-flags(x86-plt) @barney, undef $rdi, 2, 0, 2, 0, 2, 27, 2, 0, 2, 2, 2, 0, 2, 0, 2, 0, 2, 1, 2, 0, 2, 7, 2, 0, 2, 9, 2, 1, 2, 9, 2, 0, 2, 5, 2, 1, 2, 7, 2, 0, 2, 8, 2, 2, 2, 7, 2, 0, 2, 7, 2, 0, 2, 7, 2, 0, 2, 8, 2, 2, 2, 1, [[STATEPOINT1]](tied-def 0), 2, 0, 2, 1, 0, 0, csr_64, implicit-def $rsp, implicit-def $ssp
+  ; CHECK:   ADJCALLSTACKUP64 0, 0, implicit-def dead $rsp, implicit-def dead $eflags, implicit-def dead $ssp, implicit $rsp, implicit $ssp
+  ; CHECK:   ADJCALLSTACKDOWN64 0, 0, 0, implicit-def dead $rsp, implicit-def dead $eflags, implicit-def dead $ssp, implicit $rsp, implicit $ssp
+  ; CHECK:   [[STATEPOINT1:%[0-9]+]]:gr64 = STATEPOINT 2, 5, 0, undef %18:gr64, 2, 0, 2, 0, 2, 27, 2, 0, 2, 2, 2, 0, 2, 0, 2, 0, 2, 1, 2, 0, 2, 7, 2, 0, 2, 10, 2, 1, 2, 9, 2, 0, 2, 5, 2, 1, 2, 7, 2, 0, 2, 8, 2, 2, 2, 7, 2, 0, 2, 7, 2, 0, 2, 7, 2, 0, 2, 8, 2, 2, 2, 1, [[STATEPOINT1]](tied-def 0), 2, 0, 2, 1, 0, 0, csr_64, implicit-def $rsp, implicit-def $ssp, implicit-def $rax
+  ; CHECK:   ADJCALLSTACKUP64 0, 0, implicit-def dead $rsp, implicit-def dead $eflags, implicit-def dead $ssp, implicit $rsp, implicit $ssp
+  ; CHECK:   [[COPY:%[0-9]+]]:gr64 = COPY $rax
+  ; CHECK:   TEST8rr [[MOV32r0_]].sub_8bit, [[MOV32r0_]].sub_8bit, implicit-def $eflags
+  ; CHECK:   JCC_1 %bb.9, 5, implicit killed $eflags
+  ; CHECK:   JMP_1 %bb.2
+  ; CHECK: bb.2.bb10:
+  ; CHECK:   successors: %bb.4(0x80000000), %bb.3(0x00000000)
+  ; CHECK:   ADJCALLSTACKDOWN64 0, 0, 0, implicit-def dead $rsp, implicit-def dead $eflags, implicit-def dead $ssp, implicit $rsp, implicit $ssp
+  ; CHECK:   CALL64pcrel32 target-flags(x86-plt) @wobble.3, csr_64, implicit $rsp, implicit $ssp, implicit undef $rdi, implicit undef $rsi, implicit-def $rsp, implicit-def $ssp, implicit-def $rax
+  ; CHECK:   ADJCALLSTACKUP64 0, 0, implicit-def dead $rsp, implicit-def dead $eflags, implicit-def dead $ssp, implicit $rsp, implicit $ssp
+  ; CHECK:   [[COPY1:%[0-9]+]]:gr64 = COPY $rax
+  ; CHECK:   TEST8rr [[MOV32r0_]].sub_8bit, [[MOV32r0_]].sub_8bit, implicit-def $eflags
+  ; CHECK:   JCC_1 %bb.4, 5, implicit killed $eflags
+  ; CHECK:   JMP_1 %bb.3
+  ; CHECK: bb.3.bb15:
+  ; CHECK:   successors:
+  ; CHECK:   ADJCALLSTACKDOWN64 0, 0, 0, implicit-def dead $rsp, implicit-def dead $eflags, implicit-def dead $ssp, implicit $rsp, implicit $ssp
+  ; CHECK:   dead [[COPY1]]:gr64, dead [[COPY]]:gr64 = STATEPOINT 2882400000, 0, 1, target-flags(x86-plt) @barney, undef $rdi, 2, 0, 2, 0, 2, 45, 2, 0, 2, 2, 2, 0, 2, 0, 2, 0, 2, 1, 2, 0, 2, 7, 2, 0, 2, 2, 2, 1, 2, 71, 2, 0, 2, 5, 2, 0, 2, 0, [[COPY1]], 2, 7, 2, 0, 2, 7, 2, 0, 2, 7, 2, 0, 2, 7, 2, 0, 2, 2, 2, 5, 2, 1, 2, 0, 2, 2, 2, 0, 2, 0, [[COPY]], 2, 7, 2, 0, 2, 1, 2, 6, 2, 0, 2, 0, 2, 1, 2, 1, 2, 0, [[COPY]], 2, 8, 2, 10, 2, 2, [[COPY1]](tied-def 0), [[COPY]](tied-def 1), 2, 0, 2, 2, 0, 0, 1, 1, csr_64, implicit-def $rsp, implicit-def $ssp
+  ; CHECK:   ADJCALLSTACKUP64 0, 0, implicit-def dead $rsp, implicit-def dead $eflags, implicit-def dead $ssp, implicit $rsp, implicit $ssp
+  ; CHECK: bb.4.bb17:
+  ; CHECK:   successors: %bb.5(0x80000000), %bb.8(0x00000000)
+  ; CHECK:   [[MOV32rm:%[0-9]+]]:gr32 = MOV32rm undef %35:gr64, 1, $noreg, 0, $noreg :: (load unordered 4 from `i32 addrspace(1)* undef`, addrspace 1)
+  ; CHECK:   [[AND32ri:%[0-9]+]]:gr32 = AND32ri [[AND32ri]], 33554431, implicit-def dead $eflags
+  ; CHECK:   EH_LABEL <mcsymbol .Ltmp0>
+  ; CHECK:   ADJCALLSTACKDOWN64 0, 0, 0, implicit-def dead $rsp, implicit-def dead $eflags, implicit-def dead $ssp, implicit $rsp, implicit $ssp
+  ; CHECK:   $edi = COPY [[AND32ri]]
+  ; CHECK:   [[COPY2:%[0-9]+]]:gr64 = COPY [[COPY1]]
+  ; CHECK:   dead %30:gr64, [[COPY2]]:gr64, dead [[STATEPOINT1]]:gr64, [[COPY]]:gr64 = STATEPOINT 1, 16, 2, undef %38:gr64, $edi, undef $rsi, 2, 0, 2, 0, 2, 35, 2, 0, 2, 2, 2, 0, 2, 0, 2, 0, 2, 1, 2, 0, 2, 7, 2, 0, 2, 2, 2, 1, 2, 71, 2, 0, 2, 5, 2, 0, 2, 0, [[COPY2]], 2, 7, 2, 0, 2, 7, 2, 0, 2, 7, 2, 0, 2, 7, 2, 0, 2, 8, 2, 5, 2, 12, 2, 0, 2, 2, 2, 0, 2, 0, [[COPY]], 2, 7, 2, 0, 2, 4, undef %30(tied-def 0), [[COPY2]](tied-def 1), [[STATEPOINT1]](tied-def 2), [[COPY]](tied-def 3), 2, 0, 2, 4, 0, 0, 1, 1, 2, 2, 3, 3, csr_64, implicit-def $rsp, implicit-def $ssp
+  ; CHECK:   ADJCALLSTACKUP64 0, 0, implicit-def dead $rsp, implicit-def dead $eflags, implicit-def dead $ssp, implicit $rsp, implicit $ssp
+  ; CHECK:   EH_LABEL <mcsymbol .Ltmp1>
+  ; CHECK:   JMP_1 %bb.5
+  ; CHECK: bb.5.bb21:
+  ; CHECK:   successors: %bb.9(0x7c000000), %bb.6(0x04000000)
+  ; CHECK:   [[MOV64rm:%[0-9]+]]:gr64 = MOV64rm $rip, 1, $noreg, target-flags(x86-gotpcrel) @global, $noreg :: (load 8 from got)
+  ; CHECK:   [[MOV64rm1:%[0-9]+]]:gr64 = MOV64rm [[MOV64rm]], 1, $noreg, 0, $noreg :: (dereferenceable load unordered 8 from @global)
+  ; CHECK:   [[NOT64r:%[0-9]+]]:gr64 = NOT64r [[NOT64r]]
+  ; CHECK:   ADJCALLSTACKDOWN64 0, 0, 0, implicit-def dead $rsp, implicit-def dead $eflags, implicit-def dead $ssp, implicit $rsp, implicit $ssp
+  ; CHECK:   dead [[NOT64r]]:gr64, [[COPY2]]:gr64 = STATEPOINT 2, 5, 1, undef %50:gr64, undef $rdi, 2, 0, 2, 0, 2, 27, 2, 0, 2, 2, 2, 0, 2, 0, 2, 0, 2, 1, 2, 0, 2, 7, 2, 0, 2, 10, 2, 1, 2, 83, 2, 0, 2, 5, 2, 1, 2, 0, [[COPY2]], 2, 7, 2, 0, 2, 8, 2, 2, 2, 7, 2, 0, 2, 7, 2, 0, 2, 8, 2, 2, 2, 2, [[NOT64r]](tied-def 0), [[COPY2]](tied-def 1), 2, 0, 2, 2, 0, 0, 1, 1, csr_64, implicit-def $rsp, implicit-def $ssp
+  ; CHECK:   ADJCALLSTACKUP64 0, 0, implicit-def dead $rsp, implicit-def dead $eflags, implicit-def dead $ssp, implicit $rsp, implicit $ssp
+  ; CHECK:   TEST64rr [[COPY2]], [[COPY2]], implicit-def $eflags
+  ; CHECK:   [[COPY3:%[0-9]+]]:gr64 = COPY [[COPY2]]
+  ; CHECK:   [[MOV32ri1:%[0-9]+]]:gr32 = MOV32ri -1
+  ; CHECK:   JCC_1 %bb.9, 4, implicit killed $eflags
+  ; CHECK:   JMP_1 %bb.6
+  ; CHECK: bb.6.bb33.preheader:
+  ; CHECK:   successors: %bb.7(0x80000000)
+  ; CHECK:   [[MOV64rm1:%[0-9]+]]:gr64 = MOV64rm $rip, 1, $noreg, target-flags(x86-gotpcrel) @global.1, $noreg :: (load 8 from got)
+  ; CHECK:   [[MOV64rm2:%[0-9]+]]:gr64 = MOV64rm [[MOV64rm1]], 1, $noreg, 0, $noreg :: (dereferenceable load unordered 8 from @global.1)
+  ; CHECK:   [[MOV32rm:%[0-9]+]]:gr32 = MOV32rm $noreg, 1, $noreg, 660, $gs :: (load 4 from `i32 addrspace(256)* inttoptr (i64 660 to i32 addrspace(256)*)`, addrspace 256)
+  ; CHECK:   [[NOT64r1:%[0-9]+]]:gr64 = NOT64r [[NOT64r1]]
+  ; CHECK:   [[COPY4:%[0-9]+]]:gr64 = COPY [[NOT64r1]]
+  ; CHECK:   [[OR32ri:%[0-9]+]]:gr32 = OR32ri [[OR32ri]], 268435456, implicit-def dead $eflags
+  ; CHECK:   [[COPY5:%[0-9]+]]:gr32 = COPY [[OR32ri]]
+  ; CHECK:   [[COPY6:%[0-9]+]]:gr64 = COPY [[COPY3]]
+  ; CHECK:   [[DEF:%[0-9]+]]:gr64 = IMPLICIT_DEF
+  ; CHECK:   undef %81.sub_32bit:gr64_with_sub_8bit = MOV32r0 implicit-def dead $eflags
+  ; CHECK: bb.7.bb33:
+  ; CHECK:   successors: %bb.7(0x80000000)
+  ; CHECK:   [[INC64r:%[0-9]+]]:gr64_with_sub_8bit = nuw nsw INC64r [[INC64r]], implicit-def dead $eflags
+  ; CHECK:   [[MOV64rm2:%[0-9]+]]:gr64 = MOV64rm undef %59:gr64, 1, $noreg, 0, $noreg :: (load unordered 8 from `i8 addrspace(1)* addrspace(1)* undef`, addrspace 1)
+  ; CHECK:   [[NOT64r2:%[0-9]+]]:gr64 = NOT64r [[NOT64r2]]
+  ; CHECK:   CMP64rr [[NOT64r2]], [[COPY6]], implicit-def $eflags
+  ; CHECK:   undef %102.sub_32bit:gr64_with_sub_8bit = MOV32ri 0
+  ; CHECK:   [[CMOV64rr:%[0-9]+]]:gr64 = CMOV64rr [[CMOV64rr]], %102, 4, implicit killed $eflags
+  ; CHECK:   INLINEASM &"lock btsq $0,($1)", 1 /* sideeffect attdialect */, 4325385 /* reguse:GR64 */, %102, 4325385 /* reguse:GR64 */, undef %56:gr64, 12 /* clobber */, implicit-def dead early-clobber $df, 12 /* clobber */, implicit-def early-clobber $fpsw, 12 /* clobber */, implicit-def dead early-clobber $eflags
+  ; CHECK:   LCMPXCHG32 undef %67:gr64, 1, $noreg, 0, $noreg, [[COPY5]], implicit-def dead $eax, implicit-def dead $eflags, implicit undef $eax :: (load store acquire monotonic 4 on `i32 addrspace(1)* undef`, addrspace 1)
+  ; CHECK:   ADJCALLSTACKDOWN64 0, 0, 0, implicit-def dead $rsp, implicit-def dead $eflags, implicit-def dead $ssp, implicit $rsp, implicit $ssp
+  ; CHECK:   $rdi = COPY [[COPY4]]
+  ; CHECK:   CALL64pcrel32 target-flags(x86-plt) @wobble, csr_64, implicit $rsp, implicit $ssp, implicit $rdi, implicit-def $rsp, implicit-def $ssp
+  ; CHECK:   ADJCALLSTACKUP64 0, 0, implicit-def dead $rsp, implicit-def dead $eflags, implicit-def dead $ssp, implicit $rsp, implicit $ssp
+  ; CHECK:   [[MOV64rm2:%[0-9]+]]:gr64 = MOV64rm $rip, 1, $noreg, target-flags(x86-gotpcrel) @global, $noreg :: (load 8 from got)
+  ; CHECK:   [[MOV64rm3:%[0-9]+]]:gr64 = MOV64rm [[MOV64rm2]], 1, $noreg, 0, $noreg :: (dereferenceable load unordered 8 from @global)
+  ; CHECK:   [[NOT64r2:%[0-9]+]]:gr64 = NOT64r [[NOT64r2]]
+  ; CHECK:   ADJCALLSTACKDOWN64 0, 0, 0, implicit-def dead $rsp, implicit-def dead $eflags, implicit-def dead $ssp, implicit $rsp, implicit $ssp
+  ; CHECK:   $rdi = COPY [[NOT64r2]]
+  ; CHECK:   [[DEF]]:gr64, dead [[CMOV64rr]]:gr64 = STATEPOINT 2, 5, 1, undef %73:gr64, $rdi, 2, 0, 2, 0, 2, 27, 2, 0, 2, 2, 2, 0, 2, 0, 2, 0, 2, 1, 2, 0, 2, 7, 2, 0, 2, 10, 2, 1, 2, 83, 2, 0, 2, 5, 2, 1, 2, 0, [[CMOV64rr]], 2, 7, 2, 0, 2, 8, 2, 2, 2, 7, 2, 0, 2, 7, 2, 0, 2, 8, 2, 2, 2, 2, [[DEF]](tied-def 0), [[CMOV64rr]](tied-def 1), 2, 0, 2, 2, 0, 0, 1, 1, csr_64, implicit-def $rsp, implicit-def $ssp
+  ; CHECK:   ADJCALLSTACKUP64 0, 0, implicit-def dead $rsp, implicit-def dead $eflags, implicit-def dead $ssp, implicit $rsp, implicit $ssp
+  ; CHECK:   JMP_1 %bb.7
+  ; CHECK: bb.8.bb59 (landing-pad):
+  ; CHECK:   successors:
+  ; CHECK:   liveins: $rax, $rdx
+  ; CHECK:   EH_LABEL <mcsymbol .Ltmp2>
+  ; CHECK:   ADJCALLSTACKDOWN64 0, 0, 0, implicit-def dead $rsp, implicit-def dead $eflags, implicit-def dead $ssp, implicit $rsp, implicit $ssp
+  ; CHECK:   $edi = MOV32ri -13
+  ; CHECK:   dead [[COPY2]]:gr64, dead [[COPY]]:gr64 = STATEPOINT 2882400000, 0, 1, target-flags(x86-plt) @barney.2, $edi, 2, 0, 2, 2, 2, 35, 2, 0, 2, 2, 2, 0, 2, 0, 2, 0, 2, 1, 2, 0, 2, 7, 2, 0, 2, 2, 2, 1, 2, 71, 2, 0, 2, 5, 2, 0, 2, 0, [[COPY2]], 2, 7, 2, 0, 2, 7, 2, 0, 2, 7, 2, 0, 2, 7, 2, 0, 2, 1, 2, 5, 2, 21, 2, 0, 2, 2, 2, 0, 2, 0, [[COPY]], 2, 0, 2, 4278124286, 2, 3, [[COPY2]](tied-def 0), [[COPY]](tied-def 1), 2, 4278124286, 2, 0, 2, 3, 0, 0, 1, 1, 2, 2, csr_64, implicit-def $rsp, implicit-def $ssp
+  ; CHECK:   ADJCALLSTACKUP64 0, 0, implicit-def dead $rsp, implicit-def dead $eflags, implicit-def dead $ssp, implicit $rsp, implicit $ssp
+  ; CHECK: bb.9.bb64:
+  ; CHECK:   successors: %bb.1(0x80000000)
+  ; CHECK:   LCMPXCHG32 undef %76:gr64, 1, $noreg, 0, $noreg, [[MOV32ri1]], implicit-def dead $eax, implicit-def dead $eflags, implicit undef $eax :: (load store acquire monotonic 4 on `i32 addrspace(1)* undef`, addrspace 1)
+  ; CHECK:   ADJCALLSTACKDOWN64 0, 0, 0, implicit-def dead $rsp, implicit-def dead $eflags, implicit-def dead $ssp, implicit $rsp, implicit $ssp
+  ; CHECK:   STATEPOINT 2, 5, 1, undef %79:gr64, undef $rdi, 2, 0, 2, 0, 2, 27, 2, 0, 2, 2, 2, 0, 2, 0, 2, 0, 2, 1, 2, 0, 2, 7, 2, 0, 2, 10, 2, 1, 2, 133, 2, 0, 2, 5, 2, 1, 2, 7, 2, 0, 2, 8, 2, 2, 2, 7, 2, 0, 2, 7, 2, 0, 2, 7, 2, 0, 2, 8, 2, 2, 2, 0, 2, 0, 2, 0, csr_64, implicit-def $rsp, implicit-def $ssp
+  ; CHECK:   ADJCALLSTACKUP64 0, 0, implicit-def dead $rsp, implicit-def dead $eflags, implicit-def dead $ssp, implicit $rsp, implicit $ssp
+  ; CHECK:   JMP_1 %bb.1
+  bb.0.bb:
+    successors: %bb.1(0x80000000)
+
+    %20:gr32 = MOV32r0 implicit-def dead $eflags
+    %74:gr32 = MOV32ri -1
+    %46:gr64 = MOV64rm $rip, 1, $noreg, target-flags(x86-gotpcrel) @global, $noreg :: (load 8 from got)
+    %51:gr64 = MOV64rm $rip, 1, $noreg, target-flags(x86-gotpcrel) @global.1, $noreg :: (load 8 from got)
+
+  bb.1.bb1:
+    successors: %bb.9(0x40000000), %bb.2(0x40000000)
+
+    ADJCALLSTACKDOWN64 0, 0, 0, implicit-def dead $rsp, implicit-def dead $eflags, implicit-def dead $ssp, implicit $rsp, implicit $ssp
+    %15:gr64 = STATEPOINT 2, 5, 0, undef %16:gr64, 2, 0, 2, 0, 2, 25, 2, 0, 2, 2, 2, 0, 2, 0, 2, 0, 2, 1, 2, 0, 2, 7, 2, 0, 2, 2, 2, 1, 2, 0, 2, 0, 2, 5, 2, 0, 2, 7, 2, 0, 2, 7, 2, 0, 2, 7, 2, 0, 2, 7, 2, 0, 2, 7, 2, 0, 2, 1, undef %15(tied-def 0), 2, 0, 2, 1, 0, 0, csr_64, implicit-def $rsp, implicit-def $ssp
+    ADJCALLSTACKUP64 0, 0, implicit-def dead $rsp, implicit-def dead $eflags, implicit-def dead $ssp, implicit $rsp, implicit $ssp
+    ADJCALLSTACKDOWN64 0, 0, 0, implicit-def dead $rsp, implicit-def dead $eflags, implicit-def dead $ssp, implicit $rsp, implicit $ssp
+    %15:gr64 = STATEPOINT 2882400000, 0, 1, target-flags(x86-plt) @barney, undef $rdi, 2, 0, 2, 0, 2, 27, 2, 0, 2, 2, 2, 0, 2, 0, 2, 0, 2, 1, 2, 0, 2, 7, 2, 0, 2, 9, 2, 1, 2, 9, 2, 0, 2, 5, 2, 1, 2, 7, 2, 0, 2, 8, 2, 2, 2, 7, 2, 0, 2, 7, 2, 0, 2, 7, 2, 0, 2, 8, 2, 2, 2, 1, %15(tied-def 0), 2, 0, 2, 1, 0, 0, csr_64, implicit-def $rsp, implicit-def $ssp
+    ADJCALLSTACKUP64 0, 0, implicit-def dead $rsp, implicit-def dead $eflags, implicit-def dead $ssp, implicit $rsp, implicit $ssp
+    ADJCALLSTACKDOWN64 0, 0, 0, implicit-def dead $rsp, implicit-def dead $eflags, implicit-def dead $ssp, implicit $rsp, implicit $ssp
+    %15:gr64 = STATEPOINT 2, 5, 0, undef %18:gr64, 2, 0, 2, 0, 2, 27, 2, 0, 2, 2, 2, 0, 2, 0, 2, 0, 2, 1, 2, 0, 2, 7, 2, 0, 2, 10, 2, 1, 2, 9, 2, 0, 2, 5, 2, 1, 2, 7, 2, 0, 2, 8, 2, 2, 2, 7, 2, 0, 2, 7, 2, 0, 2, 7, 2, 0, 2, 8, 2, 2, 2, 1, %15(tied-def 0), 2, 0, 2, 1, 0, 0, csr_64, implicit-def $rsp, implicit-def $ssp, implicit-def $rax
+    ADJCALLSTACKUP64 0, 0, implicit-def dead $rsp, implicit-def dead $eflags, implicit-def dead $ssp, implicit $rsp, implicit $ssp
+    %33:gr64 = COPY $rax
+    TEST8rr %20.sub_8bit, %20.sub_8bit, implicit-def $eflags
+    JCC_1 %bb.9, 5, implicit killed $eflags
+    JMP_1 %bb.2
+
+  bb.2.bb10:
+    successors: %bb.4(0x80000000), %bb.3(0x00000000)
+
+    ADJCALLSTACKDOWN64 0, 0, 0, implicit-def dead $rsp, implicit-def dead $eflags, implicit-def dead $ssp, implicit $rsp, implicit $ssp
+    CALL64pcrel32 target-flags(x86-plt) @wobble.3, csr_64, implicit $rsp, implicit $ssp, implicit undef $rdi, implicit undef $rsi, implicit-def $rsp, implicit-def $ssp, implicit-def $rax
+    ADJCALLSTACKUP64 0, 0, implicit-def dead $rsp, implicit-def dead $eflags, implicit-def dead $ssp, implicit $rsp, implicit $ssp
+    %31:gr64 = COPY $rax
+    TEST8rr %20.sub_8bit, %20.sub_8bit, implicit-def $eflags
+    JCC_1 %bb.4, 5, implicit killed $eflags
+    JMP_1 %bb.3
+
+  bb.3.bb15:
+    successors:
+
+    ADJCALLSTACKDOWN64 0, 0, 0, implicit-def dead $rsp, implicit-def dead $eflags, implicit-def dead $ssp, implicit $rsp, implicit $ssp
+    dead %31:gr64, dead %33:gr64 = STATEPOINT 2882400000, 0, 1, target-flags(x86-plt) @barney, undef $rdi, 2, 0, 2, 0, 2, 45, 2, 0, 2, 2, 2, 0, 2, 0, 2, 0, 2, 1, 2, 0, 2, 7, 2, 0, 2, 2, 2, 1, 2, 71, 2, 0, 2, 5, 2, 0, 2, 0, %31, 2, 7, 2, 0, 2, 7, 2, 0, 2, 7, 2, 0, 2, 7, 2, 0, 2, 2, 2, 5, 2, 1, 2, 0, 2, 2, 2, 0, 2, 0, %33, 2, 7, 2, 0, 2, 1, 2, 6, 2, 0, 2, 0, 2, 1, 2, 1, 2, 0, %33, 2, 8, 2, 10, 2, 2, %31(tied-def 0), %33(tied-def 1), 2, 0, 2, 2, 0, 0, 1, 1, csr_64, implicit-def $rsp, implicit-def $ssp
+    ADJCALLSTACKUP64 0, 0, implicit-def dead $rsp, implicit-def dead $eflags, implicit-def dead $ssp, implicit $rsp, implicit $ssp
+
+  bb.4.bb17:
+    successors: %bb.5(0x80000000), %bb.8(0x00000000)
+
+    %36:gr32 = MOV32rm undef %35:gr64, 1, $noreg, 0, $noreg :: (load unordered 4 from `i32 addrspace(1)* undef`, addrspace 1)
+    %36:gr32 = AND32ri %36, 33554431, implicit-def dead $eflags
+    EH_LABEL <mcsymbol .Ltmp0>
+    ADJCALLSTACKDOWN64 0, 0, 0, implicit-def dead $rsp, implicit-def dead $eflags, implicit-def dead $ssp, implicit $rsp, implicit $ssp
+    $edi = COPY %36
+    dead %30:gr64, %31:gr64, dead %15:gr64, %33:gr64 = STATEPOINT 1, 16, 2, undef %38:gr64, killed $edi, undef $rsi, 2, 0, 2, 0, 2, 35, 2, 0, 2, 2, 2, 0, 2, 0, 2, 0, 2, 1, 2, 0, 2, 7, 2, 0, 2, 2, 2, 1, 2, 71, 2, 0, 2, 5, 2, 0, 2, 0, %31, 2, 7, 2, 0, 2, 7, 2, 0, 2, 7, 2, 0, 2, 7, 2, 0, 2, 8, 2, 5, 2, 12, 2, 0, 2, 2, 2, 0, 2, 0, %33, 2, 7, 2, 0, 2, 4, undef %30(tied-def 0), %31(tied-def 1), %15(tied-def 2), %33(tied-def 3), 2, 0, 2, 4, 0, 0, 1, 1, 2, 2, 3, 3, csr_64, implicit-def $rsp, implicit-def $ssp
+    ADJCALLSTACKUP64 0, 0, implicit-def dead $rsp, implicit-def dead $eflags, implicit-def dead $ssp, implicit $rsp, implicit $ssp
+    EH_LABEL <mcsymbol .Ltmp1>
+    JMP_1 %bb.5
+
+  bb.5.bb21:
+    successors: %bb.9(0x7c000000), %bb.6(0x04000000)
+
+    %44:gr64 = MOV64rm %46, 1, $noreg, 0, $noreg :: (dereferenceable load unordered 8 from @global)
+    %44:gr64 = NOT64r %44
+    ADJCALLSTACKDOWN64 0, 0, 0, implicit-def dead $rsp, implicit-def dead $eflags, implicit-def dead $ssp, implicit $rsp, implicit $ssp
+    dead %44:gr64, %31:gr64 = STATEPOINT 2, 5, 1, undef %50:gr64, undef $rdi, 2, 0, 2, 0, 2, 27, 2, 0, 2, 2, 2, 0, 2, 0, 2, 0, 2, 1, 2, 0, 2, 7, 2, 0, 2, 10, 2, 1, 2, 83, 2, 0, 2, 5, 2, 1, 2, 0, %31, 2, 7, 2, 0, 2, 8, 2, 2, 2, 7, 2, 0, 2, 7, 2, 0, 2, 8, 2, 2, 2, 2, %44(tied-def 0), %31(tied-def 1), 2, 0, 2, 2, 0, 0, 1, 1, csr_64, implicit-def $rsp, implicit-def $ssp
+    ADJCALLSTACKUP64 0, 0, implicit-def dead $rsp, implicit-def dead $eflags, implicit-def dead $ssp, implicit $rsp, implicit $ssp
+    TEST64rr %31, %31, implicit-def $eflags
+    JCC_1 %bb.9, 4, implicit killed $eflags
+    JMP_1 %bb.6
+
+  bb.6.bb33.preheader:
+    successors: %bb.7(0x80000000)
+
+    %64:gr64 = MOV64rm %51, 1, $noreg, 0, $noreg :: (dereferenceable load unordered 8 from @global.1)
+    %65:gr32 = MOV32rm $noreg, 1, $noreg, 660, $gs :: (load 4 from `i32 addrspace(256)* inttoptr (i64 660 to i32 addrspace(256)*)`, addrspace 256)
+    undef %53.sub_32bit:gr64_with_sub_8bit = MOV32r0 implicit-def dead $eflags
+    %64:gr64 = NOT64r %64
+    %65:gr32 = OR32ri %65, 268435456, implicit-def dead $eflags
+    %80:gr64 = IMPLICIT_DEF
+    undef %81.sub_32bit:gr64_with_sub_8bit = MOV32r0 implicit-def dead $eflags
+
+  bb.7.bb33:
+    successors: %bb.7(0x80000000)
+
+    %81:gr64_with_sub_8bit = nuw nsw INC64r %81, implicit-def dead $eflags
+    %63:gr64 = MOV64rm undef %59:gr64, 1, $noreg, 0, $noreg :: (load unordered 8 from `i8 addrspace(1)* addrspace(1)* undef`, addrspace 1)
+    %63:gr64 = NOT64r %63
+    CMP64rr %63, %31, implicit-def $eflags
+    %63:gr64 = CMOV64rr %63, %53, 4, implicit killed $eflags
+    INLINEASM &"lock btsq $0,($1)", 1 /* sideeffect attdialect */, 4325385 /* reguse:GR64 */, %53, 4325385 /* reguse:GR64 */, undef %56:gr64, 12 /* clobber */, implicit-def dead early-clobber $df, 12 /* clobber */, implicit-def early-clobber $fpsw, 12 /* clobber */, implicit-def dead early-clobber $eflags
+    LCMPXCHG32 undef %67:gr64, 1, $noreg, 0, $noreg, %65, implicit-def dead $eax, implicit-def dead $eflags, implicit undef $eax :: (load store acquire monotonic 4 on `i32 addrspace(1)* undef`, addrspace 1)
+    ADJCALLSTACKDOWN64 0, 0, 0, implicit-def dead $rsp, implicit-def dead $eflags, implicit-def dead $ssp, implicit $rsp, implicit $ssp
+    $rdi = COPY %64
+    CALL64pcrel32 target-flags(x86-plt) @wobble, csr_64, implicit $rsp, implicit $ssp, implicit killed $rdi, implicit-def $rsp, implicit-def $ssp
+    ADJCALLSTACKUP64 0, 0, implicit-def dead $rsp, implicit-def dead $eflags, implicit-def dead $ssp, implicit $rsp, implicit $ssp
+    %71:gr64 = MOV64rm %46, 1, $noreg, 0, $noreg :: (dereferenceable load unordered 8 from @global)
+    %71:gr64 = NOT64r %71
+    ADJCALLSTACKDOWN64 0, 0, 0, implicit-def dead $rsp, implicit-def dead $eflags, implicit-def dead $ssp, implicit $rsp, implicit $ssp
+    $rdi = COPY %71
+    %80:gr64, dead %63:gr64 = STATEPOINT 2, 5, 1, undef %73:gr64, killed $rdi, 2, 0, 2, 0, 2, 27, 2, 0, 2, 2, 2, 0, 2, 0, 2, 0, 2, 1, 2, 0, 2, 7, 2, 0, 2, 10, 2, 1, 2, 83, 2, 0, 2, 5, 2, 1, 2, 0, %63, 2, 7, 2, 0, 2, 8, 2, 2, 2, 7, 2, 0, 2, 7, 2, 0, 2, 8, 2, 2, 2, 2, %80(tied-def 0), %63(tied-def 1), 2, 0, 2, 2, 0, 0, 1, 1, csr_64, implicit-def $rsp, implicit-def $ssp
+    ADJCALLSTACKUP64 0, 0, implicit-def dead $rsp, implicit-def dead $eflags, implicit-def dead $ssp, implicit $rsp, implicit $ssp
+    JMP_1 %bb.7
+
+  bb.8.bb59 (landing-pad):
+    successors:
+    liveins: $rax, $rdx
+
+    EH_LABEL <mcsymbol .Ltmp2>
+    ADJCALLSTACKDOWN64 0, 0, 0, implicit-def dead $rsp, implicit-def dead $eflags, implicit-def dead $ssp, implicit $rsp, implicit $ssp
+    $edi = MOV32ri -13
+    dead %31:gr64, dead %33:gr64 = STATEPOINT 2882400000, 0, 1, target-flags(x86-plt) @barney.2, killed $edi, 2, 0, 2, 2, 2, 35, 2, 0, 2, 2, 2, 0, 2, 0, 2, 0, 2, 1, 2, 0, 2, 7, 2, 0, 2, 2, 2, 1, 2, 71, 2, 0, 2, 5, 2, 0, 2, 0, %31, 2, 7, 2, 0, 2, 7, 2, 0, 2, 7, 2, 0, 2, 7, 2, 0, 2, 1, 2, 5, 2, 21, 2, 0, 2, 2, 2, 0, 2, 0, %33, 2, 0, 2, 4278124286, 2, 3, %31(tied-def 0), %33(tied-def 1), 2, 4278124286, 2, 0, 2, 3, 0, 0, 1, 1, 2, 2, csr_64, implicit-def $rsp, implicit-def $ssp
+    ADJCALLSTACKUP64 0, 0, implicit-def dead $rsp, implicit-def dead $eflags, implicit-def dead $ssp, implicit $rsp, implicit $ssp
+
+  bb.9.bb64:
+    successors: %bb.1(0x80000000)
+
+    LCMPXCHG32 undef %76:gr64, 1, $noreg, 0, $noreg, %74, implicit-def dead $eax, implicit-def dead $eflags, implicit undef $eax :: (load store acquire monotonic 4 on `i32 addrspace(1)* undef`, addrspace 1)
+    ADJCALLSTACKDOWN64 0, 0, 0, implicit-def dead $rsp, implicit-def dead $eflags, implicit-def dead $ssp, implicit $rsp, implicit $ssp
+    STATEPOINT 2, 5, 1, undef %79:gr64, undef $rdi, 2, 0, 2, 0, 2, 27, 2, 0, 2, 2, 2, 0, 2, 0, 2, 0, 2, 1, 2, 0, 2, 7, 2, 0, 2, 10, 2, 1, 2, 133, 2, 0, 2, 5, 2, 1, 2, 7, 2, 0, 2, 8, 2, 2, 2, 7, 2, 0, 2, 7, 2, 0, 2, 7, 2, 0, 2, 8, 2, 2, 2, 0, 2, 0, 2, 0, csr_64, implicit-def $rsp, implicit-def $ssp
+    ADJCALLSTACKUP64 0, 0, implicit-def dead $rsp, implicit-def dead $eflags, implicit-def dead $ssp, implicit $rsp, implicit $ssp
+    JMP_1 %bb.1
+
+...