llvm/test/CodeGen/AArch64/cmpbr-ccmp.ll

; NOTE: Assertions have been autogenerated by utils/update_llc_test_checks.py UTC_ARGS: --version 6
; RUN: llc -mtriple=arm64-apple-ios -mattr +cmpbr -aarch64-stress-ccmp -verify-machineinstrs -o - %s | FileCheck %s --check-prefix=CHECK-CMPBR
; RUN: llc -mtriple=arm64-apple-ios -mattr -cmpbr -aarch64-stress-ccmp -verify-machineinstrs -o - %s | FileCheck %s --check-prefix=CHECK-NO-CMPBR

declare i32 @foo()

define i32 @cb_chain_imm(i32 %a, i32 %b) nounwind {
; CHECK-CMPBR-LABEL: cb_chain_imm:
; CHECK-CMPBR:       ; %bb.0: ; %entry
; CHECK-CMPBR-NEXT:    sdiv w8, w1, w0
; CHECK-CMPBR-NEXT:    cmp w0, #1
; CHECK-CMPBR-NEXT:    ccmp w8, #16, #0, ge
; CHECK-CMPBR-NEXT:    b.le LBB0_2
; CHECK-CMPBR-NEXT:  ; %bb.1: ; %if.end
; CHECK-CMPBR-NEXT:    mov w0, #7 ; =0x7
; CHECK-CMPBR-NEXT:    ret
; CHECK-CMPBR-NEXT:  LBB0_2: ; %if.then
; CHECK-CMPBR-NEXT:    stp x29, x30, [sp, #-16]! ; 16-byte Folded Spill
; CHECK-CMPBR-NEXT:    bl _foo
; CHECK-CMPBR-NEXT:    ldp x29, x30, [sp], #16 ; 16-byte Folded Reload
; CHECK-CMPBR-NEXT:    mov w0, #7 ; =0x7
; CHECK-CMPBR-NEXT:    ret
;
; CHECK-NO-CMPBR-LABEL: cb_chain_imm:
; CHECK-NO-CMPBR:       ; %bb.0: ; %entry
; CHECK-NO-CMPBR-NEXT:    sdiv w8, w1, w0
; CHECK-NO-CMPBR-NEXT:    cmp w0, #1
; CHECK-NO-CMPBR-NEXT:    ccmp w8, #16, #0, ge
; CHECK-NO-CMPBR-NEXT:    b.le LBB0_2
; CHECK-NO-CMPBR-NEXT:  ; %bb.1: ; %if.end
; CHECK-NO-CMPBR-NEXT:    mov w0, #7 ; =0x7
; CHECK-NO-CMPBR-NEXT:    ret
; CHECK-NO-CMPBR-NEXT:  LBB0_2: ; %if.then
; CHECK-NO-CMPBR-NEXT:    stp x29, x30, [sp, #-16]! ; 16-byte Folded Spill
; CHECK-NO-CMPBR-NEXT:    bl _foo
; CHECK-NO-CMPBR-NEXT:    ldp x29, x30, [sp], #16 ; 16-byte Folded Reload
; CHECK-NO-CMPBR-NEXT:    mov w0, #7 ; =0x7
; CHECK-NO-CMPBR-NEXT:    ret
entry:
  %cmp = icmp sgt i32 %a, 0
  br i1 %cmp, label %land.lhs.true, label %if.end
land.lhs.true:
  %div = sdiv i32 %b, %a
  %cmp1 = icmp slt i32 %div, 17
  br i1 %cmp1, label %if.then, label %if.end
if.then:
  %call = tail call i32 @foo() nounwind
  br label %if.end
if.end:
  ret i32 7
}

define i32 @cb_cmpbb_imm_31(i32 %a, i32 %b) nounwind {
; CHECK-CMPBR-LABEL: cb_cmpbb_imm_31:
; CHECK-CMPBR:       ; %bb.0: ; %entry
; CHECK-CMPBR-NEXT:    sdiv w8, w1, w0
; CHECK-CMPBR-NEXT:    cmp w0, #1
; CHECK-CMPBR-NEXT:    ccmp w8, #31, #0, ge
; CHECK-CMPBR-NEXT:    b.le LBB1_2
; CHECK-CMPBR-NEXT:  ; %bb.1: ; %if.end
; CHECK-CMPBR-NEXT:    mov w0, #7 ; =0x7
; CHECK-CMPBR-NEXT:    ret
; CHECK-CMPBR-NEXT:  LBB1_2: ; %if.then
; CHECK-CMPBR-NEXT:    stp x29, x30, [sp, #-16]! ; 16-byte Folded Spill
; CHECK-CMPBR-NEXT:    bl _foo
; CHECK-CMPBR-NEXT:    ldp x29, x30, [sp], #16 ; 16-byte Folded Reload
; CHECK-CMPBR-NEXT:    mov w0, #7 ; =0x7
; CHECK-CMPBR-NEXT:    ret
;
; CHECK-NO-CMPBR-LABEL: cb_cmpbb_imm_31:
; CHECK-NO-CMPBR:       ; %bb.0: ; %entry
; CHECK-NO-CMPBR-NEXT:    sdiv w8, w1, w0
; CHECK-NO-CMPBR-NEXT:    cmp w0, #1
; CHECK-NO-CMPBR-NEXT:    ccmp w8, #31, #0, ge
; CHECK-NO-CMPBR-NEXT:    b.le LBB1_2
; CHECK-NO-CMPBR-NEXT:  ; %bb.1: ; %if.end
; CHECK-NO-CMPBR-NEXT:    mov w0, #7 ; =0x7
; CHECK-NO-CMPBR-NEXT:    ret
; CHECK-NO-CMPBR-NEXT:  LBB1_2: ; %if.then
; CHECK-NO-CMPBR-NEXT:    stp x29, x30, [sp, #-16]! ; 16-byte Folded Spill
; CHECK-NO-CMPBR-NEXT:    bl _foo
; CHECK-NO-CMPBR-NEXT:    ldp x29, x30, [sp], #16 ; 16-byte Folded Reload
; CHECK-NO-CMPBR-NEXT:    mov w0, #7 ; =0x7
; CHECK-NO-CMPBR-NEXT:    ret
entry:
  %cmp = icmp sgt i32 %a, 0
  br i1 %cmp, label %land.lhs.true, label %if.end
land.lhs.true:
  %div = sdiv i32 %b, %a
  %cmp1 = icmp slt i32 %div, 32
  br i1 %cmp1, label %if.then, label %if.end
if.then:
  %call = tail call i32 @foo() nounwind
  br label %if.end
if.end:
  ret i32 7
}

define i32 @cb_cmpbb_imm_32_reject(i32 %a, i32 %b) nounwind {
; CHECK-CMPBR-LABEL: cb_cmpbb_imm_32_reject:
; CHECK-CMPBR:       ; %bb.0: ; %entry
; CHECK-CMPBR-NEXT:    cblt w0, #1, LBB2_3
; CHECK-CMPBR-NEXT:  ; %bb.1: ; %land.lhs.true
; CHECK-CMPBR-NEXT:    sdiv w8, w1, w0
; CHECK-CMPBR-NEXT:    cbgt w8, #32, LBB2_3
; CHECK-CMPBR-NEXT:  ; %bb.2: ; %if.then
; CHECK-CMPBR-NEXT:    stp x29, x30, [sp, #-16]! ; 16-byte Folded Spill
; CHECK-CMPBR-NEXT:    bl _foo
; CHECK-CMPBR-NEXT:    ldp x29, x30, [sp], #16 ; 16-byte Folded Reload
; CHECK-CMPBR-NEXT:  LBB2_3: ; %if.end
; CHECK-CMPBR-NEXT:    mov w0, #7 ; =0x7
; CHECK-CMPBR-NEXT:    ret
;
; CHECK-NO-CMPBR-LABEL: cb_cmpbb_imm_32_reject:
; CHECK-NO-CMPBR:       ; %bb.0: ; %entry
; CHECK-NO-CMPBR-NEXT:    cmp w0, #1
; CHECK-NO-CMPBR-NEXT:    b.lt LBB2_3
; CHECK-NO-CMPBR-NEXT:  ; %bb.1: ; %land.lhs.true
; CHECK-NO-CMPBR-NEXT:    sdiv w8, w1, w0
; CHECK-NO-CMPBR-NEXT:    cmp w8, #32
; CHECK-NO-CMPBR-NEXT:    b.gt LBB2_3
; CHECK-NO-CMPBR-NEXT:  ; %bb.2: ; %if.then
; CHECK-NO-CMPBR-NEXT:    stp x29, x30, [sp, #-16]! ; 16-byte Folded Spill
; CHECK-NO-CMPBR-NEXT:    bl _foo
; CHECK-NO-CMPBR-NEXT:    ldp x29, x30, [sp], #16 ; 16-byte Folded Reload
; CHECK-NO-CMPBR-NEXT:  LBB2_3: ; %if.end
; CHECK-NO-CMPBR-NEXT:    mov w0, #7 ; =0x7
; CHECK-NO-CMPBR-NEXT:    ret
entry:
  %cmp = icmp sgt i32 %a, 0
  br i1 %cmp, label %land.lhs.true, label %if.end
land.lhs.true:
  %div = sdiv i32 %b, %a
  %cmp1 = icmp slt i32 %div, 33
  br i1 %cmp1, label %if.then, label %if.end
if.then:
  %call = tail call i32 @foo() nounwind
  br label %if.end
if.end:
  ret i32 7
}

define i32 @cb_head_imm_63(i32 %a, i32 %b) nounwind {
; CHECK-CMPBR-LABEL: cb_head_imm_63:
; CHECK-CMPBR:       ; %bb.0: ; %entry
; CHECK-CMPBR-NEXT:    sdiv w8, w1, w0
; CHECK-CMPBR-NEXT:    cmp w0, #63
; CHECK-CMPBR-NEXT:    ccmp w8, #16, #0, ge
; CHECK-CMPBR-NEXT:    b.le LBB3_2
; CHECK-CMPBR-NEXT:  ; %bb.1: ; %if.end
; CHECK-CMPBR-NEXT:    mov w0, #7 ; =0x7
; CHECK-CMPBR-NEXT:    ret
; CHECK-CMPBR-NEXT:  LBB3_2: ; %if.then
; CHECK-CMPBR-NEXT:    stp x29, x30, [sp, #-16]! ; 16-byte Folded Spill
; CHECK-CMPBR-NEXT:    bl _foo
; CHECK-CMPBR-NEXT:    ldp x29, x30, [sp], #16 ; 16-byte Folded Reload
; CHECK-CMPBR-NEXT:    mov w0, #7 ; =0x7
; CHECK-CMPBR-NEXT:    ret
;
; CHECK-NO-CMPBR-LABEL: cb_head_imm_63:
; CHECK-NO-CMPBR:       ; %bb.0: ; %entry
; CHECK-NO-CMPBR-NEXT:    sdiv w8, w1, w0
; CHECK-NO-CMPBR-NEXT:    cmp w0, #63
; CHECK-NO-CMPBR-NEXT:    ccmp w8, #16, #0, ge
; CHECK-NO-CMPBR-NEXT:    b.le LBB3_2
; CHECK-NO-CMPBR-NEXT:  ; %bb.1: ; %if.end
; CHECK-NO-CMPBR-NEXT:    mov w0, #7 ; =0x7
; CHECK-NO-CMPBR-NEXT:    ret
; CHECK-NO-CMPBR-NEXT:  LBB3_2: ; %if.then
; CHECK-NO-CMPBR-NEXT:    stp x29, x30, [sp, #-16]! ; 16-byte Folded Spill
; CHECK-NO-CMPBR-NEXT:    bl _foo
; CHECK-NO-CMPBR-NEXT:    ldp x29, x30, [sp], #16 ; 16-byte Folded Reload
; CHECK-NO-CMPBR-NEXT:    mov w0, #7 ; =0x7
; CHECK-NO-CMPBR-NEXT:    ret
entry:
  %cmp = icmp sgt i32 %a, 62
  br i1 %cmp, label %land.lhs.true, label %if.end
land.lhs.true:
  %div = sdiv i32 %b, %a
  %cmp1 = icmp slt i32 %div, 17
  br i1 %cmp1, label %if.then, label %if.end
if.then:
  %call = tail call i32 @foo() nounwind
  br label %if.end
if.end:
  ret i32 7
}

define i64 @cb_chain_imm_64(i64 %a, i64 %b) nounwind {
; CHECK-CMPBR-LABEL: cb_chain_imm_64:
; CHECK-CMPBR:       ; %bb.0: ; %entry
; CHECK-CMPBR-NEXT:    sdiv x8, x1, x0
; CHECK-CMPBR-NEXT:    cmp x0, #1
; CHECK-CMPBR-NEXT:    ccmp x8, #16, #0, ge
; CHECK-CMPBR-NEXT:    b.le LBB4_2
; CHECK-CMPBR-NEXT:  ; %bb.1: ; %if.end
; CHECK-CMPBR-NEXT:    mov w0, #7 ; =0x7
; CHECK-CMPBR-NEXT:    ret
; CHECK-CMPBR-NEXT:  LBB4_2: ; %if.then
; CHECK-CMPBR-NEXT:    stp x29, x30, [sp, #-16]! ; 16-byte Folded Spill
; CHECK-CMPBR-NEXT:    bl _foo
; CHECK-CMPBR-NEXT:    ldp x29, x30, [sp], #16 ; 16-byte Folded Reload
; CHECK-CMPBR-NEXT:    mov w0, #7 ; =0x7
; CHECK-CMPBR-NEXT:    ret
;
; CHECK-NO-CMPBR-LABEL: cb_chain_imm_64:
; CHECK-NO-CMPBR:       ; %bb.0: ; %entry
; CHECK-NO-CMPBR-NEXT:    sdiv x8, x1, x0
; CHECK-NO-CMPBR-NEXT:    cmp x0, #1
; CHECK-NO-CMPBR-NEXT:    ccmp x8, #16, #0, ge
; CHECK-NO-CMPBR-NEXT:    b.le LBB4_2
; CHECK-NO-CMPBR-NEXT:  ; %bb.1: ; %if.end
; CHECK-NO-CMPBR-NEXT:    mov w0, #7 ; =0x7
; CHECK-NO-CMPBR-NEXT:    ret
; CHECK-NO-CMPBR-NEXT:  LBB4_2: ; %if.then
; CHECK-NO-CMPBR-NEXT:    stp x29, x30, [sp, #-16]! ; 16-byte Folded Spill
; CHECK-NO-CMPBR-NEXT:    bl _foo
; CHECK-NO-CMPBR-NEXT:    ldp x29, x30, [sp], #16 ; 16-byte Folded Reload
; CHECK-NO-CMPBR-NEXT:    mov w0, #7 ; =0x7
; CHECK-NO-CMPBR-NEXT:    ret
entry:
  %cmp = icmp sgt i64 %a, 0
  br i1 %cmp, label %land.lhs.true, label %if.end
land.lhs.true:
  %div = sdiv i64 %b, %a
  %cmp1 = icmp slt i64 %div, 17
  br i1 %cmp1, label %if.then, label %if.end
if.then:
  %call = tail call i32 @foo() nounwind
  br label %if.end
if.end:
  ret i64 7
}

define i32 @cb_chain_reg(i32 %a, i32 %b, i32 %n) nounwind {
; CHECK-CMPBR-LABEL: cb_chain_reg:
; CHECK-CMPBR:       ; %bb.0: ; %entry
; CHECK-CMPBR-NEXT:    sdiv w8, w1, w0
; CHECK-CMPBR-NEXT:    cmp w0, #1
; CHECK-CMPBR-NEXT:    ccmp w8, w2, #0, ge
; CHECK-CMPBR-NEXT:    b.lt LBB5_2
; CHECK-CMPBR-NEXT:  ; %bb.1: ; %if.end
; CHECK-CMPBR-NEXT:    mov w0, #7 ; =0x7
; CHECK-CMPBR-NEXT:    ret
; CHECK-CMPBR-NEXT:  LBB5_2: ; %if.then
; CHECK-CMPBR-NEXT:    stp x29, x30, [sp, #-16]! ; 16-byte Folded Spill
; CHECK-CMPBR-NEXT:    bl _foo
; CHECK-CMPBR-NEXT:    ldp x29, x30, [sp], #16 ; 16-byte Folded Reload
; CHECK-CMPBR-NEXT:    mov w0, #7 ; =0x7
; CHECK-CMPBR-NEXT:    ret
;
; CHECK-NO-CMPBR-LABEL: cb_chain_reg:
; CHECK-NO-CMPBR:       ; %bb.0: ; %entry
; CHECK-NO-CMPBR-NEXT:    sdiv w8, w1, w0
; CHECK-NO-CMPBR-NEXT:    cmp w0, #1
; CHECK-NO-CMPBR-NEXT:    ccmp w8, w2, #0, ge
; CHECK-NO-CMPBR-NEXT:    b.lt LBB5_2
; CHECK-NO-CMPBR-NEXT:  ; %bb.1: ; %if.end
; CHECK-NO-CMPBR-NEXT:    mov w0, #7 ; =0x7
; CHECK-NO-CMPBR-NEXT:    ret
; CHECK-NO-CMPBR-NEXT:  LBB5_2: ; %if.then
; CHECK-NO-CMPBR-NEXT:    stp x29, x30, [sp, #-16]! ; 16-byte Folded Spill
; CHECK-NO-CMPBR-NEXT:    bl _foo
; CHECK-NO-CMPBR-NEXT:    ldp x29, x30, [sp], #16 ; 16-byte Folded Reload
; CHECK-NO-CMPBR-NEXT:    mov w0, #7 ; =0x7
; CHECK-NO-CMPBR-NEXT:    ret
entry:
  %cmp = icmp sgt i32 %a, 0
  br i1 %cmp, label %land.lhs.true, label %if.end
land.lhs.true:
  %div = sdiv i32 %b, %a
  %cmp1 = icmp slt i32 %div, %n
  br i1 %cmp1, label %if.then, label %if.end
if.then:
  %call = tail call i32 @foo() nounwind
  br label %if.end
if.end:
  ret i32 7
}

define i64 @cb_chain_reg_64(i64 %a, i64 %b, i64 %n) nounwind {
; CHECK-CMPBR-LABEL: cb_chain_reg_64:
; CHECK-CMPBR:       ; %bb.0: ; %entry
; CHECK-CMPBR-NEXT:    sdiv x8, x1, x0
; CHECK-CMPBR-NEXT:    cmp x0, #1
; CHECK-CMPBR-NEXT:    ccmp x8, x2, #0, ge
; CHECK-CMPBR-NEXT:    b.lt LBB6_2
; CHECK-CMPBR-NEXT:  ; %bb.1: ; %if.end
; CHECK-CMPBR-NEXT:    mov w0, #7 ; =0x7
; CHECK-CMPBR-NEXT:    ret
; CHECK-CMPBR-NEXT:  LBB6_2: ; %if.then
; CHECK-CMPBR-NEXT:    stp x29, x30, [sp, #-16]! ; 16-byte Folded Spill
; CHECK-CMPBR-NEXT:    bl _foo
; CHECK-CMPBR-NEXT:    ldp x29, x30, [sp], #16 ; 16-byte Folded Reload
; CHECK-CMPBR-NEXT:    mov w0, #7 ; =0x7
; CHECK-CMPBR-NEXT:    ret
;
; CHECK-NO-CMPBR-LABEL: cb_chain_reg_64:
; CHECK-NO-CMPBR:       ; %bb.0: ; %entry
; CHECK-NO-CMPBR-NEXT:    sdiv x8, x1, x0
; CHECK-NO-CMPBR-NEXT:    cmp x0, #1
; CHECK-NO-CMPBR-NEXT:    ccmp x8, x2, #0, ge
; CHECK-NO-CMPBR-NEXT:    b.lt LBB6_2
; CHECK-NO-CMPBR-NEXT:  ; %bb.1: ; %if.end
; CHECK-NO-CMPBR-NEXT:    mov w0, #7 ; =0x7
; CHECK-NO-CMPBR-NEXT:    ret
; CHECK-NO-CMPBR-NEXT:  LBB6_2: ; %if.then
; CHECK-NO-CMPBR-NEXT:    stp x29, x30, [sp, #-16]! ; 16-byte Folded Spill
; CHECK-NO-CMPBR-NEXT:    bl _foo
; CHECK-NO-CMPBR-NEXT:    ldp x29, x30, [sp], #16 ; 16-byte Folded Reload
; CHECK-NO-CMPBR-NEXT:    mov w0, #7 ; =0x7
; CHECK-NO-CMPBR-NEXT:    ret
entry:
  %cmp = icmp sgt i64 %a, 0
  br i1 %cmp, label %land.lhs.true, label %if.end
land.lhs.true:
  %div = sdiv i64 %b, %a
  %cmp1 = icmp slt i64 %div, %n
  br i1 %cmp1, label %if.then, label %if.end
if.then:
  %call = tail call i32 @foo() nounwind
  br label %if.end
if.end:
  ret i64 7
}

define i32 @cb_head_fcmp_cmpbb(i32 %a, float %f, float %g) nounwind {
; CHECK-CMPBR-LABEL: cb_head_fcmp_cmpbb:
; CHECK-CMPBR:       ; %bb.0: ; %entry
; CHECK-CMPBR-NEXT:    fdiv s0, s0, s1
; CHECK-CMPBR-NEXT:    fmov s1, #1.00000000
; CHECK-CMPBR-NEXT:    cmp w0, #1
; CHECK-CMPBR-NEXT:    fccmp s0, s1, #0, ge
; CHECK-CMPBR-NEXT:    b.pl LBB7_2
; CHECK-CMPBR-NEXT:  ; %bb.1: ; %if.then
; CHECK-CMPBR-NEXT:    stp x29, x30, [sp, #-16]! ; 16-byte Folded Spill
; CHECK-CMPBR-NEXT:    bl _foo
; CHECK-CMPBR-NEXT:    ldp x29, x30, [sp], #16 ; 16-byte Folded Reload
; CHECK-CMPBR-NEXT:  LBB7_2: ; %if.end
; CHECK-CMPBR-NEXT:    mov w0, #7 ; =0x7
; CHECK-CMPBR-NEXT:    ret
;
; CHECK-NO-CMPBR-LABEL: cb_head_fcmp_cmpbb:
; CHECK-NO-CMPBR:       ; %bb.0: ; %entry
; CHECK-NO-CMPBR-NEXT:    fdiv s0, s0, s1
; CHECK-NO-CMPBR-NEXT:    fmov s1, #1.00000000
; CHECK-NO-CMPBR-NEXT:    cmp w0, #1
; CHECK-NO-CMPBR-NEXT:    fccmp s0, s1, #0, ge
; CHECK-NO-CMPBR-NEXT:    b.pl LBB7_2
; CHECK-NO-CMPBR-NEXT:  ; %bb.1: ; %if.then
; CHECK-NO-CMPBR-NEXT:    stp x29, x30, [sp, #-16]! ; 16-byte Folded Spill
; CHECK-NO-CMPBR-NEXT:    bl _foo
; CHECK-NO-CMPBR-NEXT:    ldp x29, x30, [sp], #16 ; 16-byte Folded Reload
; CHECK-NO-CMPBR-NEXT:  LBB7_2: ; %if.end
; CHECK-NO-CMPBR-NEXT:    mov w0, #7 ; =0x7
; CHECK-NO-CMPBR-NEXT:    ret
entry:
  %cmp = icmp sgt i32 %a, 0
  br i1 %cmp, label %land.lhs.true, label %if.end
land.lhs.true:
  %div = fdiv float %f, %g
  %cmp1 = fcmp olt float %div, 1.0
  br i1 %cmp1, label %if.then, label %if.end
if.then:
  %call = tail call i32 @foo() nounwind
  br label %if.end
if.end:
  ret i32 7
}

define i32 @cbz_head_cb_cmpbb(i32 %a, i32 %b) nounwind {
; CHECK-CMPBR-LABEL: cbz_head_cb_cmpbb:
; CHECK-CMPBR:       ; %bb.0: ; %entry
; CHECK-CMPBR-NEXT:    mov w8, #21846 ; =0x5556
; CHECK-CMPBR-NEXT:    cmp w0, #0
; CHECK-CMPBR-NEXT:    movk w8, #21845, lsl #16
; CHECK-CMPBR-NEXT:    smull x8, w1, w8
; CHECK-CMPBR-NEXT:    lsr x9, x8, #32
; CHECK-CMPBR-NEXT:    add x8, x9, x8, lsr #63
; CHECK-CMPBR-NEXT:    ccmp w8, #16, #0, eq
; CHECK-CMPBR-NEXT:    b.gt LBB8_2
; CHECK-CMPBR-NEXT:  ; %bb.1: ; %if.then
; CHECK-CMPBR-NEXT:    stp x29, x30, [sp, #-16]! ; 16-byte Folded Spill
; CHECK-CMPBR-NEXT:    bl _foo
; CHECK-CMPBR-NEXT:    ldp x29, x30, [sp], #16 ; 16-byte Folded Reload
; CHECK-CMPBR-NEXT:  LBB8_2: ; %if.end
; CHECK-CMPBR-NEXT:    mov w0, #7 ; =0x7
; CHECK-CMPBR-NEXT:    ret
;
; CHECK-NO-CMPBR-LABEL: cbz_head_cb_cmpbb:
; CHECK-NO-CMPBR:       ; %bb.0: ; %entry
; CHECK-NO-CMPBR-NEXT:    mov w8, #21846 ; =0x5556
; CHECK-NO-CMPBR-NEXT:    cmp w0, #0
; CHECK-NO-CMPBR-NEXT:    movk w8, #21845, lsl #16
; CHECK-NO-CMPBR-NEXT:    smull x8, w1, w8
; CHECK-NO-CMPBR-NEXT:    lsr x9, x8, #32
; CHECK-NO-CMPBR-NEXT:    add x8, x9, x8, lsr #63
; CHECK-NO-CMPBR-NEXT:    ccmp w8, #16, #0, eq
; CHECK-NO-CMPBR-NEXT:    b.gt LBB8_2
; CHECK-NO-CMPBR-NEXT:  ; %bb.1: ; %if.then
; CHECK-NO-CMPBR-NEXT:    stp x29, x30, [sp, #-16]! ; 16-byte Folded Spill
; CHECK-NO-CMPBR-NEXT:    bl _foo
; CHECK-NO-CMPBR-NEXT:    ldp x29, x30, [sp], #16 ; 16-byte Folded Reload
; CHECK-NO-CMPBR-NEXT:  LBB8_2: ; %if.end
; CHECK-NO-CMPBR-NEXT:    mov w0, #7 ; =0x7
; CHECK-NO-CMPBR-NEXT:    ret
entry:
  %cmp = icmp eq i32 %a, 0
  br i1 %cmp, label %land.lhs.true, label %if.end
land.lhs.true:
  %div = sdiv i32 %b, 3
  %cmp1 = icmp slt i32 %div, 17
  br i1 %cmp1, label %if.then, label %if.end
if.then:
  %call = tail call i32 @foo() nounwind
  br label %if.end
if.end:
  ret i32 7
}

define i32 @cb_head_cbnz_cmpbb(i32 %a, i32 %b) nounwind {
; CHECK-CMPBR-LABEL: cb_head_cbnz_cmpbb:
; CHECK-CMPBR:       ; %bb.0: ; %entry
; CHECK-CMPBR-NEXT:    sdiv w8, w1, w0
; CHECK-CMPBR-NEXT:    cmp w0, #1
; CHECK-CMPBR-NEXT:    ccmp w8, #0, #4, ge
; CHECK-CMPBR-NEXT:    b.ne LBB9_2
; CHECK-CMPBR-NEXT:  ; %bb.1: ; %if.end
; CHECK-CMPBR-NEXT:    mov w0, #7 ; =0x7
; CHECK-CMPBR-NEXT:    ret
; CHECK-CMPBR-NEXT:  LBB9_2: ; %if.then
; CHECK-CMPBR-NEXT:    stp x29, x30, [sp, #-16]! ; 16-byte Folded Spill
; CHECK-CMPBR-NEXT:    bl _foo
; CHECK-CMPBR-NEXT:    ldp x29, x30, [sp], #16 ; 16-byte Folded Reload
; CHECK-CMPBR-NEXT:    mov w0, #7 ; =0x7
; CHECK-CMPBR-NEXT:    ret
;
; CHECK-NO-CMPBR-LABEL: cb_head_cbnz_cmpbb:
; CHECK-NO-CMPBR:       ; %bb.0: ; %entry
; CHECK-NO-CMPBR-NEXT:    sdiv w8, w1, w0
; CHECK-NO-CMPBR-NEXT:    cmp w0, #1
; CHECK-NO-CMPBR-NEXT:    ccmp w8, #0, #4, ge
; CHECK-NO-CMPBR-NEXT:    b.ne LBB9_2
; CHECK-NO-CMPBR-NEXT:  ; %bb.1: ; %if.end
; CHECK-NO-CMPBR-NEXT:    mov w0, #7 ; =0x7
; CHECK-NO-CMPBR-NEXT:    ret
; CHECK-NO-CMPBR-NEXT:  LBB9_2: ; %if.then
; CHECK-NO-CMPBR-NEXT:    stp x29, x30, [sp, #-16]! ; 16-byte Folded Spill
; CHECK-NO-CMPBR-NEXT:    bl _foo
; CHECK-NO-CMPBR-NEXT:    ldp x29, x30, [sp], #16 ; 16-byte Folded Reload
; CHECK-NO-CMPBR-NEXT:    mov w0, #7 ; =0x7
; CHECK-NO-CMPBR-NEXT:    ret
entry:
  %cmp = icmp sgt i32 %a, 0
  br i1 %cmp, label %land.lhs.true, label %if.end
land.lhs.true:
  %div = sdiv i32 %b, %a
  %cmp1 = icmp ne i32 %div, 0
  br i1 %cmp1, label %if.then, label %if.end
if.then:
  %call = tail call i32 @foo() nounwind
  br label %if.end
if.end:
  ret i32 7
}

define i32 @cb_chain_three_deep(i32 %a, i32 %b, i32 %n) nounwind {
; CHECK-CMPBR-LABEL: cb_chain_three_deep:
; CHECK-CMPBR:       ; %bb.0: ; %entry
; CHECK-CMPBR-NEXT:    sdiv w8, w1, w0
; CHECK-CMPBR-NEXT:    cmp w0, #1
; CHECK-CMPBR-NEXT:    sdiv w9, w2, w0
; CHECK-CMPBR-NEXT:    ccmp w8, #16, #0, ge
; CHECK-CMPBR-NEXT:    ccmp w9, #18, #0, le
; CHECK-CMPBR-NEXT:    b.le LBB10_2
; CHECK-CMPBR-NEXT:  ; %bb.1: ; %if.end
; CHECK-CMPBR-NEXT:    mov w0, #7 ; =0x7
; CHECK-CMPBR-NEXT:    ret
; CHECK-CMPBR-NEXT:  LBB10_2: ; %if.then
; CHECK-CMPBR-NEXT:    stp x29, x30, [sp, #-16]! ; 16-byte Folded Spill
; CHECK-CMPBR-NEXT:    bl _foo
; CHECK-CMPBR-NEXT:    ldp x29, x30, [sp], #16 ; 16-byte Folded Reload
; CHECK-CMPBR-NEXT:    mov w0, #7 ; =0x7
; CHECK-CMPBR-NEXT:    ret
;
; CHECK-NO-CMPBR-LABEL: cb_chain_three_deep:
; CHECK-NO-CMPBR:       ; %bb.0: ; %entry
; CHECK-NO-CMPBR-NEXT:    sdiv w8, w1, w0
; CHECK-NO-CMPBR-NEXT:    cmp w0, #1
; CHECK-NO-CMPBR-NEXT:    sdiv w9, w2, w0
; CHECK-NO-CMPBR-NEXT:    ccmp w8, #16, #0, ge
; CHECK-NO-CMPBR-NEXT:    ccmp w9, #18, #0, le
; CHECK-NO-CMPBR-NEXT:    b.le LBB10_2
; CHECK-NO-CMPBR-NEXT:  ; %bb.1: ; %if.end
; CHECK-NO-CMPBR-NEXT:    mov w0, #7 ; =0x7
; CHECK-NO-CMPBR-NEXT:    ret
; CHECK-NO-CMPBR-NEXT:  LBB10_2: ; %if.then
; CHECK-NO-CMPBR-NEXT:    stp x29, x30, [sp, #-16]! ; 16-byte Folded Spill
; CHECK-NO-CMPBR-NEXT:    bl _foo
; CHECK-NO-CMPBR-NEXT:    ldp x29, x30, [sp], #16 ; 16-byte Folded Reload
; CHECK-NO-CMPBR-NEXT:    mov w0, #7 ; =0x7
; CHECK-NO-CMPBR-NEXT:    ret
entry:
  %cmp = icmp sgt i32 %a, 0
  br i1 %cmp, label %land.lhs.true, label %if.end
land.lhs.true:
  %div = sdiv i32 %b, %a
  %cmp1 = icmp slt i32 %div, 17
  br i1 %cmp1, label %land.lhs.true2, label %if.end
land.lhs.true2:
  %div2 = sdiv i32 %n, %a
  %cmp2 = icmp slt i32 %div2, 19
  br i1 %cmp2, label %if.then, label %if.end
if.then:
  %call = tail call i32 @foo() nounwind
  br label %if.end
if.end:
  ret i32 7
}