; NOTE: Assertions have been autogenerated by utils/update_mir_test_checks.py

; RUN: llc -mtriple=aarch64-linux-gnu %s -o - -verify-machineinstrs \
; RUN:   -start-before=aarch64-isel -stop-after=finalize-isel \
; RUN:   -global-isel=0 -fast-isel=0 | FileCheck %s

; This file was initially generated via:
; $ opt -S -callbrprepare llvm/test/CodeGen/AArch64/callbr-prepare.ll -o \
;   llvm/test/CodeGen/AArch64/callbr-asm-outputs-indirect-isel.ll

; TODO: should we remove test cases that don't use landingpad intrinsic?
; They're not interesting IMO.

; Removed is the test case for x86 machine specific physreg constraints.

define i32 @test0() {
  ; CHECK-LABEL: name: test0
  ; CHECK: bb.0.entry:
  ; CHECK-NEXT:   successors: %bb.2(0x80000000), %bb.1(0x00000000)
  ; CHECK-NEXT: {{  $}}
  ; CHECK-NEXT:   INLINEASM_BR &"# $0", 0 /* attdialect */, 1703946 /* regdef:GPR32common */, def %5, 13 /* imm */, %bb.1
  ; CHECK-NEXT:   [[COPY:%[0-9]+]]:gpr32all = COPY %5
  ; CHECK-NEXT:   B %bb.2
  ; CHECK-NEXT: {{  $}}
  ; CHECK-NEXT: bb.1.entry.indirect_crit_edge (machine-block-address-taken, inlineasm-br-indirect-target):
  ; CHECK-NEXT:   successors: %bb.5(0x80000000)
  ; CHECK-NEXT: {{  $}}
  ; CHECK-NEXT:   [[COPY1:%[0-9]+]]:gpr32all = COPY %5
  ; CHECK-NEXT:   B %bb.5
  ; CHECK-NEXT: {{  $}}
  ; CHECK-NEXT: bb.2.direct:
  ; CHECK-NEXT:   successors: %bb.4(0x80000000), %bb.3(0x00000000)
  ; CHECK-NEXT: {{  $}}
  ; CHECK-NEXT:   INLINEASM_BR &"# $0", 0 /* attdialect */, 1703946 /* regdef:GPR32common */, def %7, 13 /* imm */, %bb.3
  ; CHECK-NEXT:   [[COPY2:%[0-9]+]]:gpr32all = COPY %7
  ; CHECK-NEXT:   B %bb.4
  ; CHECK-NEXT: {{  $}}
  ; CHECK-NEXT: bb.3.direct.indirect_crit_edge (machine-block-address-taken, inlineasm-br-indirect-target):
  ; CHECK-NEXT:   successors: %bb.5(0x80000000)
  ; CHECK-NEXT: {{  $}}
  ; CHECK-NEXT:   [[COPY3:%[0-9]+]]:gpr32all = COPY %7
  ; CHECK-NEXT:   B %bb.5
  ; CHECK-NEXT: {{  $}}
  ; CHECK-NEXT: bb.4.direct2:
  ; CHECK-NEXT:   [[COPY4:%[0-9]+]]:gpr32all = COPY $wzr
  ; CHECK-NEXT:   $w0 = COPY [[COPY4]]
  ; CHECK-NEXT:   RET_ReallyLR implicit $w0
  ; CHECK-NEXT: {{  $}}
  ; CHECK-NEXT: bb.5.indirect:
  ; CHECK-NEXT:   [[PHI:%[0-9]+]]:gpr32all = PHI [[COPY1]], %bb.1, [[COPY3]], %bb.3
  ; CHECK-NEXT:   $w0 = COPY [[PHI]]
  ; CHECK-NEXT:   RET_ReallyLR implicit $w0
entry:
  %out = callbr i32 asm "# $0", "=r,!i"()
          to label %direct [label %entry.indirect_crit_edge]

entry.indirect_crit_edge:                         ; preds = %entry
  %0 = call i32 @llvm.callbr.landingpad.i32(i32 %out)
  br label %indirect

direct:                                           ; preds = %entry
  %out2 = callbr i32 asm "# $0", "=r,!i"()
          to label %direct2 [label %direct.indirect_crit_edge]

direct.indirect_crit_edge:                        ; preds = %direct
  %1 = call i32 @llvm.callbr.landingpad.i32(i32 %out2)
  br label %indirect

direct2:                                          ; preds = %direct
  ret i32 0

indirect:                                         ; preds = %direct.indirect_crit_edge, %entry.indirect_crit_edge
  %out3 = phi i32 [ %0, %entry.indirect_crit_edge ], [ %1, %direct.indirect_crit_edge ]
  ret i32 %out3
}

define i32 @dont_split0() {
  ; CHECK-LABEL: name: dont_split0
  ; CHECK: bb.0.entry:
  ; CHECK-NEXT:   successors: %bb.1(0x80000000), %bb.2(0x00000000)
  ; CHECK-NEXT: {{  $}}
  ; CHECK-NEXT:   INLINEASM_BR &"", 0 /* attdialect */, 13 /* imm */, %bb.2
  ; CHECK-NEXT:   B %bb.1
  ; CHECK-NEXT: {{  $}}
  ; CHECK-NEXT: bb.1.x:
  ; CHECK-NEXT:   [[MOVi32imm:%[0-9]+]]:gpr32 = MOVi32imm 42
  ; CHECK-NEXT:   $w0 = COPY [[MOVi32imm]]
  ; CHECK-NEXT:   RET_ReallyLR implicit $w0
  ; CHECK-NEXT: {{  $}}
  ; CHECK-NEXT: bb.2.y (machine-block-address-taken, inlineasm-br-indirect-target):
  ; CHECK-NEXT:   [[COPY:%[0-9]+]]:gpr32all = COPY $wzr
  ; CHECK-NEXT:   $w0 = COPY [[COPY]]
  ; CHECK-NEXT:   RET_ReallyLR implicit $w0
entry:
  callbr void asm "", "!i"()
          to label %x [label %y]

x:                                                ; preds = %entry
  ret i32 42

y:                                                ; preds = %entry
  ret i32 0
}

define i32 @dont_split1() {
  ; CHECK-LABEL: name: dont_split1
  ; CHECK: bb.0.entry:
  ; CHECK-NEXT:   successors: %bb.1(0x80000000), %bb.2(0x00000000)
  ; CHECK-NEXT: {{  $}}
  ; CHECK-NEXT:   INLINEASM_BR &"", 0 /* attdialect */, 1703946 /* regdef:GPR32common */, def %1, 13 /* imm */, %bb.2
  ; CHECK-NEXT:   [[COPY:%[0-9]+]]:gpr32all = COPY %1
  ; CHECK-NEXT:   B %bb.1
  ; CHECK-NEXT: {{  $}}
  ; CHECK-NEXT: bb.1.x:
  ; CHECK-NEXT:   [[MOVi32imm:%[0-9]+]]:gpr32 = MOVi32imm 42
  ; CHECK-NEXT:   $w0 = COPY [[MOVi32imm]]
  ; CHECK-NEXT:   RET_ReallyLR implicit $w0
  ; CHECK-NEXT: {{  $}}
  ; CHECK-NEXT: bb.2.y (machine-block-address-taken, inlineasm-br-indirect-target):
  ; CHECK-NEXT:   $w0 = COPY %1
  ; CHECK-NEXT:   RET_ReallyLR implicit $w0
entry:
  %0 = callbr i32 asm "", "=r,!i"()
          to label %x [label %y]

x:                                                ; preds = %entry
  ret i32 42

y:                                                ; preds = %entry
  %1 = call i32 @llvm.callbr.landingpad.i32(i32 %0)
  ret i32 %1
}

define i32 @dont_split2() {
  ; CHECK-LABEL: name: dont_split2
  ; CHECK: bb.0.entry:
  ; CHECK-NEXT:   successors: %bb.1(0x80000000), %bb.2(0x00000000)
  ; CHECK-NEXT: {{  $}}
  ; CHECK-NEXT:   [[MOVi32imm:%[0-9]+]]:gpr32 = MOVi32imm 42
  ; CHECK-NEXT:   [[COPY:%[0-9]+]]:gpr32all = COPY [[MOVi32imm]]
  ; CHECK-NEXT:   INLINEASM_BR &"", 0 /* attdialect */, 13 /* imm */, %bb.2
  ; CHECK-NEXT:   B %bb.1
  ; CHECK-NEXT: {{  $}}
  ; CHECK-NEXT: bb.1.x:
  ; CHECK-NEXT:   successors: %bb.2(0x80000000)
  ; CHECK-NEXT: {{  $}}
  ; CHECK-NEXT:   [[COPY1:%[0-9]+]]:gpr32all = COPY $wzr
  ; CHECK-NEXT:   [[COPY2:%[0-9]+]]:gpr32all = COPY [[COPY1]]
  ; CHECK-NEXT: {{  $}}
  ; CHECK-NEXT: bb.2.y (machine-block-address-taken, inlineasm-br-indirect-target):
  ; CHECK-NEXT:   [[PHI:%[0-9]+]]:gpr32all = PHI [[COPY]], %bb.0, [[COPY2]], %bb.1
  ; CHECK-NEXT:   $w0 = COPY [[PHI]]
  ; CHECK-NEXT:   RET_ReallyLR implicit $w0
entry:
  callbr void asm "", "!i"()
          to label %x [label %y]

x:                                                ; preds = %entry
  br label %y

y:                                                ; preds = %x, %entry
  %0 = phi i32 [ 0, %x ], [ 42, %entry ]
  ret i32 %0
}

define i32 @dont_split3() {
  ; CHECK-LABEL: name: dont_split3
  ; CHECK: bb.0.entry:
  ; CHECK-NEXT:   successors: %bb.1(0x80000000), %bb.2(0x00000000)
  ; CHECK-NEXT: {{  $}}
  ; CHECK-NEXT:   INLINEASM_BR &"", 0 /* attdialect */, 1703946 /* regdef:GPR32common */, def %0, 13 /* imm */, %bb.2
  ; CHECK-NEXT:   B %bb.1
  ; CHECK-NEXT: {{  $}}
  ; CHECK-NEXT: bb.1.x:
  ; CHECK-NEXT:   successors: %bb.2(0x80000000)
  ; CHECK-NEXT: {{  $}}
  ; CHECK-NEXT: {{  $}}
  ; CHECK-NEXT: bb.2.v (machine-block-address-taken, inlineasm-br-indirect-target):
  ; CHECK-NEXT:   [[MOVi32imm:%[0-9]+]]:gpr32 = MOVi32imm 42
  ; CHECK-NEXT:   $w0 = COPY [[MOVi32imm]]
  ; CHECK-NEXT:   RET_ReallyLR implicit $w0
entry:
  %0 = callbr i32 asm "", "=r,!i"()
          to label %x [label %v]

x:                                                ; preds = %entry
  br label %v

v:                                                ; preds = %x, %entry
  ret i32 42
}

define i32 @split_me0() {
  ; CHECK-LABEL: name: split_me0
  ; CHECK: bb.0.entry:
  ; CHECK-NEXT:   successors: %bb.2(0x80000000), %bb.1(0x00000000)
  ; CHECK-NEXT: {{  $}}
  ; CHECK-NEXT:   INLINEASM_BR &"", 0 /* attdialect */, 1703946 /* regdef:GPR32common */, def %3, 13 /* imm */, %bb.1
  ; CHECK-NEXT:   [[COPY:%[0-9]+]]:gpr32all = COPY %3
  ; CHECK-NEXT:   B %bb.2
  ; CHECK-NEXT: {{  $}}
  ; CHECK-NEXT: bb.1.entry.y_crit_edge (machine-block-address-taken, inlineasm-br-indirect-target):
  ; CHECK-NEXT:   successors: %bb.3(0x80000000)
  ; CHECK-NEXT: {{  $}}
  ; CHECK-NEXT:   [[COPY1:%[0-9]+]]:gpr32all = COPY %3
  ; CHECK-NEXT:   B %bb.3
  ; CHECK-NEXT: {{  $}}
  ; CHECK-NEXT: bb.2.x:
  ; CHECK-NEXT:   successors: %bb.3(0x80000000)
  ; CHECK-NEXT: {{  $}}
  ; CHECK-NEXT:   [[MOVi32imm:%[0-9]+]]:gpr32 = MOVi32imm 42
  ; CHECK-NEXT:   [[COPY2:%[0-9]+]]:gpr32all = COPY [[MOVi32imm]]
  ; CHECK-NEXT: {{  $}}
  ; CHECK-NEXT: bb.3.y:
  ; CHECK-NEXT:   [[PHI:%[0-9]+]]:gpr32all = PHI [[COPY1]], %bb.1, [[COPY2]], %bb.2
  ; CHECK-NEXT:   $w0 = COPY [[PHI]]
  ; CHECK-NEXT:   RET_ReallyLR implicit $w0
entry:
  %0 = callbr i32 asm "", "=r,!i"()
          to label %x [label %entry.y_crit_edge]

entry.y_crit_edge:                                ; preds = %entry
  %1 = call i32 @llvm.callbr.landingpad.i32(i32 %0)
  br label %y

x:                                                ; preds = %entry
  br label %y

y:                                                ; preds = %entry.y_crit_edge, %x
  %2 = phi i32 [ %1, %entry.y_crit_edge ], [ 42, %x ]
  ret i32 %2
}

define i32 @split_me1(i1 %z) {
  ; CHECK-LABEL: name: split_me1
  ; CHECK: bb.0.entry:
  ; CHECK-NEXT:   successors: %bb.1(0x40000000), %bb.4(0x40000000)
  ; CHECK-NEXT:   liveins: $w0
  ; CHECK-NEXT: {{  $}}
  ; CHECK-NEXT:   [[COPY:%[0-9]+]]:gpr32 = COPY $w0
  ; CHECK-NEXT:   [[DEF:%[0-9]+]]:gpr32all = IMPLICIT_DEF
  ; CHECK-NEXT:   TBZW [[COPY]], 0, %bb.4
  ; CHECK-NEXT:   B %bb.1
  ; CHECK-NEXT: {{  $}}
  ; CHECK-NEXT: bb.1.w:
  ; CHECK-NEXT:   successors: %bb.3(0x80000000), %bb.2(0x00000000)
  ; CHECK-NEXT: {{  $}}
  ; CHECK-NEXT:   INLINEASM_BR &"", 0 /* attdialect */, 1703946 /* regdef:GPR32common */, def %5, 13 /* imm */, %bb.2, 13 /* imm */, %bb.2
  ; CHECK-NEXT:   [[COPY1:%[0-9]+]]:gpr32all = COPY %5
  ; CHECK-NEXT:   B %bb.3
  ; CHECK-NEXT: {{  $}}
  ; CHECK-NEXT: bb.2.w.v_crit_edge (machine-block-address-taken, inlineasm-br-indirect-target):
  ; CHECK-NEXT:   successors: %bb.4(0x80000000)
  ; CHECK-NEXT: {{  $}}
  ; CHECK-NEXT:   [[COPY2:%[0-9]+]]:gpr32all = COPY %5
  ; CHECK-NEXT:   B %bb.4
  ; CHECK-NEXT: {{  $}}
  ; CHECK-NEXT: bb.3.x:
  ; CHECK-NEXT:   [[MOVi32imm:%[0-9]+]]:gpr32 = MOVi32imm 42
  ; CHECK-NEXT:   $w0 = COPY [[MOVi32imm]]
  ; CHECK-NEXT:   RET_ReallyLR implicit $w0
  ; CHECK-NEXT: {{  $}}
  ; CHECK-NEXT: bb.4.v:
  ; CHECK-NEXT:   [[PHI:%[0-9]+]]:gpr32all = PHI [[DEF]], %bb.0, [[COPY2]], %bb.2
  ; CHECK-NEXT:   $w0 = COPY [[PHI]]
  ; CHECK-NEXT:   RET_ReallyLR implicit $w0
entry:
  br i1 %z, label %w, label %v

w:                                                ; preds = %entry
  %0 = callbr i32 asm "", "=r,!i,!i"()
          to label %x [label %w.v_crit_edge, label %w.v_crit_edge]

w.v_crit_edge:                                    ; preds = %w, %w
  %1 = call i32 @llvm.callbr.landingpad.i32(i32 %0)
  br label %v

x:                                                ; preds = %w
  ret i32 42

v:                                                ; preds = %w.v_crit_edge, %entry
  %2 = phi i32 [ %1, %w.v_crit_edge ], [ undef, %entry ]
  ret i32 %2
}

define i32 @split_me2(i1 %z) {
  ; CHECK-LABEL: name: split_me2
  ; CHECK: bb.0.entry:
  ; CHECK-NEXT:   successors: %bb.1(0x40000000), %bb.4(0x40000000)
  ; CHECK-NEXT:   liveins: $w0
  ; CHECK-NEXT: {{  $}}
  ; CHECK-NEXT:   [[COPY:%[0-9]+]]:gpr32 = COPY $w0
  ; CHECK-NEXT:   [[MOVi32imm:%[0-9]+]]:gpr32 = MOVi32imm 42
  ; CHECK-NEXT:   [[COPY1:%[0-9]+]]:gpr32all = COPY [[MOVi32imm]]
  ; CHECK-NEXT:   TBZW [[COPY]], 0, %bb.4
  ; CHECK-NEXT:   B %bb.1
  ; CHECK-NEXT: {{  $}}
  ; CHECK-NEXT: bb.1.w:
  ; CHECK-NEXT:   successors: %bb.3(0x80000000), %bb.2(0x00000000)
  ; CHECK-NEXT: {{  $}}
  ; CHECK-NEXT:   INLINEASM_BR &"", 0 /* attdialect */, 1703946 /* regdef:GPR32common */, def %6, 13 /* imm */, %bb.2, 13 /* imm */, %bb.2
  ; CHECK-NEXT:   [[COPY2:%[0-9]+]]:gpr32all = COPY %6
  ; CHECK-NEXT:   B %bb.3
  ; CHECK-NEXT: {{  $}}
  ; CHECK-NEXT: bb.2.w.v_crit_edge (machine-block-address-taken, inlineasm-br-indirect-target):
  ; CHECK-NEXT:   successors: %bb.4(0x80000000)
  ; CHECK-NEXT: {{  $}}
  ; CHECK-NEXT:   [[COPY3:%[0-9]+]]:gpr32all = COPY %6
  ; CHECK-NEXT:   B %bb.4
  ; CHECK-NEXT: {{  $}}
  ; CHECK-NEXT: bb.3.x:
  ; CHECK-NEXT:   [[MOVi32imm1:%[0-9]+]]:gpr32 = MOVi32imm 42
  ; CHECK-NEXT:   $w0 = COPY [[MOVi32imm1]]
  ; CHECK-NEXT:   RET_ReallyLR implicit $w0
  ; CHECK-NEXT: {{  $}}
  ; CHECK-NEXT: bb.4.v:
  ; CHECK-NEXT:   [[PHI:%[0-9]+]]:gpr32all = PHI [[COPY1]], %bb.0, [[COPY3]], %bb.2
  ; CHECK-NEXT:   $w0 = COPY [[PHI]]
  ; CHECK-NEXT:   RET_ReallyLR implicit $w0
entry:
  br i1 %z, label %w, label %v

w:                                                ; preds = %entry
  %0 = callbr i32 asm "", "=r,!i,!i"()
          to label %x [label %w.v_crit_edge, label %w.v_crit_edge]

w.v_crit_edge:                                    ; preds = %w, %w
  %1 = call i32 @llvm.callbr.landingpad.i32(i32 %0)
  br label %v

x:                                                ; preds = %w
  ret i32 42

v:                                                ; preds = %w.v_crit_edge, %entry
  %2 = phi i32 [ %1, %w.v_crit_edge ], [ 42, %entry ]
  ret i32 %2
}

define i32 @dont_split4() {
  ; CHECK-LABEL: name: dont_split4
  ; CHECK: bb.0.entry:
  ; CHECK-NEXT:   successors: %bb.1(0x80000000), %bb.2(0x00000000)
  ; CHECK-NEXT: {{  $}}
  ; CHECK-NEXT:   INLINEASM_BR &"", 0 /* attdialect */, 1703946 /* regdef:GPR32common */, def %3, 13 /* imm */, %bb.2
  ; CHECK-NEXT:   [[COPY:%[0-9]+]]:gpr32all = COPY %3
  ; CHECK-NEXT:   B %bb.1
  ; CHECK-NEXT: {{  $}}
  ; CHECK-NEXT: bb.1.x:
  ; CHECK-NEXT:   successors: %bb.3(0x80000000)
  ; CHECK-NEXT: {{  $}}
  ; CHECK-NEXT:   B %bb.3
  ; CHECK-NEXT: {{  $}}
  ; CHECK-NEXT: bb.2.y (machine-block-address-taken, inlineasm-br-indirect-target):
  ; CHECK-NEXT:   successors: %bb.3(0x80000000)
  ; CHECK-NEXT: {{  $}}
  ; CHECK-NEXT:   [[COPY1:%[0-9]+]]:gpr32all = COPY %3
  ; CHECK-NEXT: {{  $}}
  ; CHECK-NEXT: bb.3.out:
  ; CHECK-NEXT:   [[PHI:%[0-9]+]]:gpr32all = PHI [[COPY1]], %bb.2, [[COPY]], %bb.1
  ; CHECK-NEXT:   $w0 = COPY [[PHI]]
  ; CHECK-NEXT:   RET_ReallyLR implicit $w0
entry:
  %0 = callbr i32 asm "", "=r,!i"()
          to label %x [label %y]

x:                                                ; preds = %entry
  br label %out

y:                                                ; preds = %entry
  %1 = call i32 @llvm.callbr.landingpad.i32(i32 %0)
  br label %out

out:                                              ; preds = %y, %x
  %2 = phi i32 [ %1, %y ], [ %0, %x ]
  ret i32 %2
}

define i32 @dont_split5() {
  ; CHECK-LABEL: name: dont_split5
  ; CHECK: bb.0.entry:
  ; CHECK-NEXT:   successors: %bb.2(0x80000000), %bb.1(0x00000000)
  ; CHECK-NEXT: {{  $}}
  ; CHECK-NEXT:   INLINEASM_BR &"", 0 /* attdialect */, 1703946 /* regdef:GPR32common */, def %3, 13 /* imm */, %bb.1
  ; CHECK-NEXT:   [[COPY:%[0-9]+]]:gpr32all = COPY %3
  ; CHECK-NEXT:   B %bb.2
  ; CHECK-NEXT: {{  $}}
  ; CHECK-NEXT: bb.1.y (machine-block-address-taken, inlineasm-br-indirect-target):
  ; CHECK-NEXT:   successors: %bb.2(0x80000000)
  ; CHECK-NEXT: {{  $}}
  ; CHECK-NEXT:   [[COPY1:%[0-9]+]]:gpr32all = COPY %3
  ; CHECK-NEXT: {{  $}}
  ; CHECK-NEXT: bb.2.out:
  ; CHECK-NEXT:   [[PHI:%[0-9]+]]:gpr32all = PHI [[COPY]], %bb.0, [[COPY1]], %bb.1
  ; CHECK-NEXT:   $w0 = COPY [[PHI]]
  ; CHECK-NEXT:   RET_ReallyLR implicit $w0
entry:
  %0 = callbr i32 asm "", "=r,!i"()
          to label %out [label %y]

y:                                                ; preds = %entry
  %1 = call i32 @llvm.callbr.landingpad.i32(i32 %0)
  br label %out

out:                                              ; preds = %y, %entry
  %2 = phi i32 [ %1, %y ], [ %0, %entry ]
  ret i32 %2
}

define i32 @split_me3() {
  ; CHECK-LABEL: name: split_me3
  ; CHECK: bb.0.entry:
  ; CHECK-NEXT:   successors: %bb.2(0x80000000), %bb.1(0x00000000)
  ; CHECK-NEXT: {{  $}}
  ; CHECK-NEXT:   INLINEASM_BR &"", 0 /* attdialect */, 1703946 /* regdef:GPR32common */, def %3, 13 /* imm */, %bb.1
  ; CHECK-NEXT:   [[COPY:%[0-9]+]]:gpr32all = COPY %3
  ; CHECK-NEXT:   B %bb.2
  ; CHECK-NEXT: {{  $}}
  ; CHECK-NEXT: bb.1.entry.out_crit_edge (machine-block-address-taken, inlineasm-br-indirect-target):
  ; CHECK-NEXT:   successors: %bb.3(0x80000000)
  ; CHECK-NEXT: {{  $}}
  ; CHECK-NEXT:   [[COPY1:%[0-9]+]]:gpr32all = COPY %3
  ; CHECK-NEXT:   B %bb.3
  ; CHECK-NEXT: {{  $}}
  ; CHECK-NEXT: bb.2.y:
  ; CHECK-NEXT:   successors: %bb.3(0x80000000)
  ; CHECK-NEXT: {{  $}}
  ; CHECK-NEXT: {{  $}}
  ; CHECK-NEXT: bb.3.out:
  ; CHECK-NEXT:   [[PHI:%[0-9]+]]:gpr32all = PHI [[COPY1]], %bb.1, [[COPY]], %bb.2
  ; CHECK-NEXT:   $w0 = COPY [[PHI]]
  ; CHECK-NEXT:   RET_ReallyLR implicit $w0
entry:
  %0 = callbr i32 asm "", "=r,!i"()
          to label %y [label %entry.out_crit_edge]

entry.out_crit_edge:                              ; preds = %entry
  %1 = call i32 @llvm.callbr.landingpad.i32(i32 %0)
  br label %out

y:                                                ; preds = %entry
  br label %out

out:                                              ; preds = %entry.out_crit_edge, %y
  %2 = phi i32 [ %1, %entry.out_crit_edge ], [ %0, %y ]
  ret i32 %2
}

define i32 @dont_split6(i32 %0) {
  ; CHECK-LABEL: name: dont_split6
  ; CHECK: bb.0.entry:
  ; CHECK-NEXT:   successors: %bb.1(0x80000000)
  ; CHECK-NEXT:   liveins: $w0
  ; CHECK-NEXT: {{  $}}
  ; CHECK-NEXT:   [[COPY:%[0-9]+]]:gpr32 = COPY $w0
  ; CHECK-NEXT: {{  $}}
  ; CHECK-NEXT: bb.1.loop:
  ; CHECK-NEXT:   successors: %bb.3(0x80000000), %bb.2(0x00000000)
  ; CHECK-NEXT: {{  $}}
  ; CHECK-NEXT:   [[PHI:%[0-9]+]]:gpr32all = PHI [[COPY]], %bb.0, %2, %bb.2
  ; CHECK-NEXT:   [[COPY1:%[0-9]+]]:gpr32common = COPY [[PHI]]
  ; CHECK-NEXT:   INLINEASM_BR &"", 0 /* attdialect */, 1703946 /* regdef:GPR32common */, def %4, 2147483657 /* reguse tiedto:$0 */, [[COPY1]](tied-def 3), 13 /* imm */, %bb.2
  ; CHECK-NEXT:   [[COPY2:%[0-9]+]]:gpr32all = COPY %4
  ; CHECK-NEXT:   B %bb.3
  ; CHECK-NEXT: {{  $}}
  ; CHECK-NEXT: bb.2.loop.loop_crit_edge (machine-block-address-taken, inlineasm-br-indirect-target):
  ; CHECK-NEXT:   successors: %bb.1(0x80000000)
  ; CHECK-NEXT: {{  $}}
  ; CHECK-NEXT:   [[COPY3:%[0-9]+]]:gpr32all = COPY %4
  ; CHECK-NEXT:   B %bb.1
  ; CHECK-NEXT: {{  $}}
  ; CHECK-NEXT: bb.3.exit:
  ; CHECK-NEXT:   [[COPY4:%[0-9]+]]:gpr32all = COPY $wzr
  ; CHECK-NEXT:   $w0 = COPY [[COPY4]]
  ; CHECK-NEXT:   RET_ReallyLR implicit $w0
entry:
  br label %loop

loop:                                             ; preds = %loop.loop_crit_edge, %entry
  %1 = phi i32 [ %0, %entry ], [ %3, %loop.loop_crit_edge ]
  %2 = callbr i32 asm "", "=r,0,!i"(i32 %1)
          to label %exit [label %loop.loop_crit_edge]

loop.loop_crit_edge:                              ; preds = %loop
  %3 = call i32 @llvm.callbr.landingpad.i32(i32 %2)
  br label %loop

exit:                                             ; preds = %loop
  ret i32 0
}

define i32 @split_me4() {
  ; CHECK-LABEL: name: split_me4
  ; CHECK: bb.0.entry:
  ; CHECK-NEXT:   successors: %bb.2(0x80000000), %bb.1(0x00000000)
  ; CHECK-NEXT: {{  $}}
  ; CHECK-NEXT:   INLINEASM_BR &"", 0 /* attdialect */, 1703946 /* regdef:GPR32common */, def %3, 13 /* imm */, %bb.1
  ; CHECK-NEXT:   [[COPY:%[0-9]+]]:gpr32all = COPY %3
  ; CHECK-NEXT:   B %bb.2
  ; CHECK-NEXT: {{  $}}
  ; CHECK-NEXT: bb.1.entry.same_crit_edge (machine-block-address-taken, inlineasm-br-indirect-target):
  ; CHECK-NEXT:   successors: %bb.2(0x80000000)
  ; CHECK-NEXT: {{  $}}
  ; CHECK-NEXT:   [[COPY1:%[0-9]+]]:gpr32all = COPY %3
  ; CHECK-NEXT: {{  $}}
  ; CHECK-NEXT: bb.2.same:
  ; CHECK-NEXT:   [[PHI:%[0-9]+]]:gpr32all = PHI [[COPY]], %bb.0, [[COPY1]], %bb.1
  ; CHECK-NEXT:   $w0 = COPY [[PHI]]
  ; CHECK-NEXT:   RET_ReallyLR implicit $w0
entry:
  %0 = callbr i32 asm "", "=r,!i"()
          to label %same [label %entry.same_crit_edge]

entry.same_crit_edge:                             ; preds = %entry
  %1 = call i32 @llvm.callbr.landingpad.i32(i32 %0)
  br label %same

same:                                             ; preds = %entry.same_crit_edge, %entry
  %2 = phi i32 [ %1, %entry.same_crit_edge ], [ %0, %entry ]
  ret i32 %2
}

define i32 @split_me5() {
  ; CHECK-LABEL: name: split_me5
  ; CHECK: bb.0.entry:
  ; CHECK-NEXT:   successors: %bb.2(0x80000000), %bb.1(0x00000000)
  ; CHECK-NEXT: {{  $}}
  ; CHECK-NEXT:   INLINEASM_BR &"", 0 /* attdialect */, 1703946 /* regdef:GPR32common */, def %3, 13 /* imm */, %bb.1
  ; CHECK-NEXT:   [[COPY:%[0-9]+]]:gpr32all = COPY %3
  ; CHECK-NEXT:   B %bb.2
  ; CHECK-NEXT: {{  $}}
  ; CHECK-NEXT: bb.1.entry.same_crit_edge (machine-block-address-taken, inlineasm-br-indirect-target):
  ; CHECK-NEXT:   successors: %bb.2(0x80000000)
  ; CHECK-NEXT: {{  $}}
  ; CHECK-NEXT:   [[COPY1:%[0-9]+]]:gpr32all = COPY %3
  ; CHECK-NEXT: {{  $}}
  ; CHECK-NEXT: bb.2.same:
  ; CHECK-NEXT:   [[PHI:%[0-9]+]]:gpr32all = PHI [[COPY]], %bb.0, [[COPY1]], %bb.1
  ; CHECK-NEXT:   $w0 = COPY [[PHI]]
  ; CHECK-NEXT:   RET_ReallyLR implicit $w0
entry:
  %0 = callbr i32 asm "", "=r,!i"()
          to label %same [label %entry.same_crit_edge]

entry.same_crit_edge:                             ; preds = %entry
  %1 = call i32 @llvm.callbr.landingpad.i32(i32 %0)
  br label %same

same:                                             ; preds = %entry.same_crit_edge, %entry
  %2 = phi i32 [ %1, %entry.same_crit_edge ], [ %0, %entry ]
  ret i32 %2
}

; Function Attrs: nounwind
declare i32 @llvm.callbr.landingpad.i32(i32) #0

; Function Attrs: nounwind
declare i64 @llvm.callbr.landingpad.i64(i64) #0

attributes #0 = { nounwind }