path: root/llvm/test/CodeGen/ARM/bfi.ll

; NOTE: Assertions have been autogenerated by utils/update_llc_test_checks.py
; RUN: llc < %s -mtriple=arm -mattr=+v6t2 | FileCheck %s

%struct.F = type { [3 x i8], i8 }

@X = common global %struct.F zeroinitializer, align 4 ; <ptr> [#uses=1]

define void @f1([1 x i32] %f.coerce0) nounwind {
; CHECK-LABEL: f1:
; CHECK:       @ %bb.0: @ %entry
; CHECK-NEXT:    movw r0, :lower16:X
; CHECK-NEXT:    mov r2, #10
; CHECK-NEXT:    movt r0, :upper16:X
; CHECK-NEXT:    ldr r1, [r0]
; CHECK-NEXT:    bfi r1, r2, #22, #4
; CHECK-NEXT:    str r1, [r0]
; CHECK-NEXT:    bx lr
entry:
  %0 = load i32, ptr @X, align 4 ; <i32> [#uses=1]
  %1 = and i32 %0, -62914561                      ; <i32> [#uses=1]
  %2 = or i32 %1, 41943040                        ; <i32> [#uses=1]
  store i32 %2, ptr @X, align 4
  ret void
}

define i32 @f2(i32 %A, i32 %B) nounwind {
; CHECK-LABEL: f2:
; CHECK:       @ %bb.0: @ %entry
; CHECK-NEXT:    lsr r1, r1, #7
; CHECK-NEXT:    bfi r0, r1, #7, #16
; CHECK-NEXT:    bx lr
entry:
  %and = and i32 %A, -8388481                     ; <i32> [#uses=1]
  %and2 = and i32 %B, 8388480                     ; <i32> [#uses=1]
  %or = or i32 %and2, %and                        ; <i32> [#uses=1]
  ret i32 %or
}

define i32 @f3(i32 %A, i32 %B) nounwind {
; CHECK-LABEL: f3:
; CHECK:       @ %bb.0: @ %entry
; CHECK-NEXT:    lsr r0, r0, #7
; CHECK-NEXT:    bfi r1, r0, #7, #16
; CHECK-NEXT:    mov r0, r1
; CHECK-NEXT:    bx lr
entry:
  %and = and i32 %A, 8388480                      ; <i32> [#uses=1]
  %and2 = and i32 %B, -8388481                    ; <i32> [#uses=1]
  %or = or i32 %and2, %and                        ; <i32> [#uses=1]
  ret i32 %or
}

; rdar://8752056
define i32 @f4(i32 %a) nounwind {
; CHECK-LABEL: f4:
; CHECK:       @ %bb.0:
; CHECK-NEXT:    movw r1, #3137
; CHECK-NEXT:    bfi r1, r0, #15, #5
; CHECK-NEXT:    mov r0, r1
; CHECK-NEXT:    bx lr
  %1 = shl i32 %a, 15
  %ins7 = and i32 %1, 1015808
  %ins12 = or i32 %ins7, 3137
  ret i32 %ins12
}

; rdar://8458663
define i32 @f5(i32 %a, i32 %b) nounwind {
; CHECK-LABEL: f5:
; CHECK:       @ %bb.0: @ %entry
; CHECK-NEXT:    bfi r0, r1, #20, #4
; CHECK-NEXT:    bx lr
entry:
  %0 = and i32 %a, -15728641
  %1 = shl i32 %b, 20
  %2 = and i32 %1, 15728640
  %3 = or i32 %2, %0
  ret i32 %3
}

; rdar://9609030
define i32 @f6(i32 %a, i32 %b) nounwind readnone {
; CHECK-LABEL: f6:
; CHECK:       @ %bb.0: @ %entry
; CHECK-NEXT:    bfi r0, r1, #8, #9
; CHECK-NEXT:    bx lr
entry:
  %and = and i32 %a, -130817
  %and2 = shl i32 %b, 8
  %shl = and i32 %and2, 130816
  %or = or i32 %shl, %and
  ret i32 %or
}

define i32 @f7(i32 %x, i32 %y) {
; CHECK-LABEL: f7:
; CHECK:       @ %bb.0:
; CHECK-NEXT:    lsr r2, r0, #2
; CHECK-NEXT:    bic r0, r1, #255
; CHECK-NEXT:    bfi r0, r2, #4, #1
; CHECK-NEXT:    bx lr
  %y2 = and i32 %y, 4294967040 ; 0xFFFFFF00
  %and = and i32 %x, 4
  %or = or i32 %y2, 16
  %cmp = icmp ne i32 %and, 0
  %sel = select i1 %cmp, i32 %or, i32 %y2
  ret i32 %sel
}

define i32 @f8(i32 %x, i32 %y) {
; CHECK-LABEL: f8:
; CHECK:       @ %bb.0:
; CHECK-NEXT:    lsr r2, r0, #2
; CHECK-NEXT:    bic r0, r1, #255
; CHECK-NEXT:    bfi r0, r2, #4, #1
; CHECK-NEXT:    bfi r0, r2, #5, #1
; CHECK-NEXT:    bx lr
  %y2 = and i32 %y, 4294967040 ; 0xFFFFFF00
  %and = and i32 %x, 4
  %or = or i32 %y2, 48
  %cmp = icmp ne i32 %and, 0
  %sel = select i1 %cmp, i32 %or, i32 %y2
  ret i32 %sel
}

define i32 @f9(i32 %x, i32 %y) {
; CHECK-LABEL: f9:
; CHECK:       @ %bb.0:
; CHECK-NEXT:    bic r1, r1, #255
; CHECK-NEXT:    tst r0, #4
; CHECK-NEXT:    orreq r1, r1, #48
; CHECK-NEXT:    mov r0, r1
; CHECK-NEXT:    bx lr
  %y2 = and i32 %y, 4294967040 ; 0xFFFFFF00
  %and = and i32 %x, 4
  %or = or i32 %y2, 48
  %cmp = icmp ne i32 %and, 0
  %sel = select i1 %cmp, i32 %y2, i32 %or
  ret i32 %sel
}

define i32 @f10(i32 %x, i32 %y) {
; CHECK-LABEL: f10:
; CHECK:       @ %bb.0:
; CHECK-NEXT:    lsr r2, r0, #1
; CHECK-NEXT:    bic r0, r1, #255
; CHECK-NEXT:    bfi r0, r2, #4, #2
; CHECK-NEXT:    bx lr
  %y2 = and i32 %y, 4294967040 ; 0xFFFFFF00
  %and = and i32 %x, 4
  %or = or i32 %y2, 32
  %cmp = icmp ne i32 %and, 0
  %sel = select i1 %cmp, i32 %or, i32 %y2

  %aand = and i32 %x, 2
  %aor = or i32 %sel, 16
  %acmp = icmp ne i32 %aand, 0
  %asel = select i1 %acmp, i32 %aor, i32 %sel

  ret i32 %asel
}

define i32 @f11(i32 %x, i32 %y) {
; CHECK-LABEL: f11:
; CHECK:       @ %bb.0:
; CHECK-NEXT:    lsr r2, r0, #1
; CHECK-NEXT:    bic r0, r1, #255
; CHECK-NEXT:    bfi r0, r2, #4, #3
; CHECK-NEXT:    bx lr
  %y2 = and i32 %y, 4294967040 ; 0xFFFFFF00
  %and = and i32 %x, 4
  %or = or i32 %y2, 32
  %cmp = icmp ne i32 %and, 0
  %sel = select i1 %cmp, i32 %or, i32 %y2

  %aand = and i32 %x, 2
  %aor = or i32 %sel, 16
  %acmp = icmp ne i32 %aand, 0
  %asel = select i1 %acmp, i32 %aor, i32 %sel

  %band = and i32 %x, 8
  %bor = or i32 %asel, 64
  %bcmp = icmp ne i32 %band, 0
  %bsel = select i1 %bcmp, i32 %bor, i32 %asel

  ret i32 %bsel
}

define i32 @f12(i32 %x, i32 %y) {
; CHECK-LABEL: f12:
; CHECK:       @ %bb.0:
; CHECK-NEXT:    lsr r2, r0, #2
; CHECK-NEXT:    bic r0, r1, #255
; CHECK-NEXT:    bfi r0, r2, #4, #1
; CHECK-NEXT:    bx lr
  %y2 = and i32 %y, 4294967040 ; 0xFFFFFF00
  %and = and i32 %x, 4
  %or = or i32 %y2, 16
  %cmp = icmp eq i32 %and, 0
  %sel = select i1 %cmp, i32 %y2, i32 %or
  ret i32 %sel
}

define i32 @f13(i32 %x, i32 %y) {
; CHECK-LABEL: f13:
; CHECK:       @ %bb.0:
; CHECK-NEXT:    and r0, r0, #4
; CHECK-NEXT:    bic r1, r1, #255
; CHECK-NEXT:    cmp r0, #42
; CHECK-NEXT:    orrne r1, r1, #16
; CHECK-NEXT:    mov r0, r1
; CHECK-NEXT:    bx lr
  %y2 = and i32 %y, 4294967040 ; 0xFFFFFF00
  %and = and i32 %x, 4
  %or = or i32 %y2, 16
  %cmp = icmp eq i32 %and, 42 ; Not comparing against zero!
  %sel = select i1 %cmp, i32 %y2, i32 %or
  ret i32 %sel
}

define i32 @bfi1(i32 %a, i32 %b) {
; CHECK-LABEL: bfi1:
; CHECK:       @ %bb.0:
; CHECK-NEXT:    and r2, r0, #1
; CHECK-NEXT:    bic r1, r1, #19
; CHECK-NEXT:    orr r1, r1, r2
; CHECK-NEXT:    and r2, r0, #16
; CHECK-NEXT:    orr r1, r1, r2
; CHECK-NEXT:    and r0, r0, #2
; CHECK-NEXT:    orr r0, r1, r0
; CHECK-NEXT:    bx lr
  %x1 = and i32 %a, 1
  %y1 = and i32 %b, 4294967294
  %z1 = or i32 %y1, %x1
  %x2 = and i32 %a, 16
  %y2 = and i32 %z1, 4294967279
  %z2 = or i32 %y2, %x2
  %x3 = and i32 %a, 2
  %y3 = and i32 %z2, 4294967293
  %z3 = or i32 %y3, %x3
  ret i32 %z3
}

define void @bfi1_use(i32 %a, i32 %b) {
; CHECK-LABEL: bfi1_use:
; CHECK:       @ %bb.0:
; CHECK-NEXT:    push {r11, lr}
; CHECK-NEXT:    mov r2, r1
; CHECK-NEXT:    lsr r3, r0, #4
; CHECK-NEXT:    bfi r2, r0, #0, #1
; CHECK-NEXT:    lsr r0, r0, #1
; CHECK-NEXT:    mov r1, r2
; CHECK-NEXT:    bfi r1, r3, #4, #1
; CHECK-NEXT:    mov r3, r1
; CHECK-NEXT:    bfi r3, r0, #1, #1
; CHECK-NEXT:    mov r0, r2
; CHECK-NEXT:    mov r2, r3
; CHECK-NEXT:    bl use
; CHECK-NEXT:    pop {r11, pc}
  %x1 = and i32 %a, 1
  %y1 = and i32 %b, 4294967294
  %z1 = or i32 %y1, %x1
  %x2 = and i32 %a, 16
  %y2 = and i32 %z1, 4294967279
  %z2 = or i32 %y2, %x2
  %x3 = and i32 %a, 2
  %y3 = and i32 %z2, 4294967293
  %z3 = or i32 %y3, %x3
  call void @use(i32 %z1, i32 %z2, i32 %z3, i32 %z3)
  ret void
}

define i32 @bfi2(i32 %a, i32 %b) {
; CHECK-LABEL: bfi2:
; CHECK:       @ %bb.0:
; CHECK-NEXT:    movw r2, #65148
; CHECK-NEXT:    movt r2, #65535
; CHECK-NEXT:    and r1, r1, r2
; CHECK-NEXT:    and r2, r0, #1
; CHECK-NEXT:    orr r1, r1, r2
; CHECK-NEXT:    and r2, r0, #2
; CHECK-NEXT:    orr r1, r1, r2
; CHECK-NEXT:    and r2, r0, #128
; CHECK-NEXT:    orr r1, r1, r2
; CHECK-NEXT:    and r0, r0, #256
; CHECK-NEXT:    orr r0, r1, r0
; CHECK-NEXT:    bx lr
  %x1 = and i32 %a, 1
  %y1 = and i32 %b, 4294967294
  %z1 = or i32 %y1, %x1
  %x2 = and i32 %a, 2
  %y2 = and i32 %z1, 4294967293
  %z2 = or i32 %y2, %x2
  %x3 = and i32 %a, 128
  %y3 = and i32 %z2, 4294967167
  %z3 = or i32 %y3, %x3
  %x4 = and i32 %a, 256
  %y4 = and i32 %z3, 4294967039
  %z4 = or i32 %y4, %x4
  ret i32 %z4
}

define void @bfi2_uses(i32 %a, i32 %b) {
; CHECK-LABEL: bfi2_uses:
; CHECK:       @ %bb.0:
; CHECK-NEXT:    push {r11, lr}
; CHECK-NEXT:    mov r12, r1
; CHECK-NEXT:    bfi r1, r0, #0, #2
; CHECK-NEXT:    bfi r12, r0, #0, #1
; CHECK-NEXT:    lsr r0, r0, #7
; CHECK-NEXT:    mov r2, r1
; CHECK-NEXT:    mov r3, r1
; CHECK-NEXT:    bfi r2, r0, #7, #1
; CHECK-NEXT:    bfi r3, r0, #7, #2
; CHECK-NEXT:    mov r0, r12
; CHECK-NEXT:    bl use
; CHECK-NEXT:    pop {r11, pc}
  %x1 = and i32 %a, 1
  %y1 = and i32 %b, 4294967294
  %z1 = or i32 %y1, %x1
  %x2 = and i32 %a, 2
  %y2 = and i32 %z1, 4294967293
  %z2 = or i32 %y2, %x2
  %x3 = and i32 %a, 128
  %y3 = and i32 %z2, 4294967167
  %z3 = or i32 %y3, %x3
  %x4 = and i32 %a, 256
  %y4 = and i32 %z3, 4294967039
  %z4 = or i32 %y4, %x4
  call void @use(i32 %z1, i32 %z2, i32 %z3, i32 %z4)
  ret void
}

define i32 @bfi3(i32 %a, i32 %b) {
; CHECK-LABEL: bfi3:
; CHECK:       @ %bb.0:
; CHECK-NEXT:    movw r2, #65148
; CHECK-NEXT:    movt r2, #65535
; CHECK-NEXT:    and r1, r1, r2
; CHECK-NEXT:    and r2, r0, #1
; CHECK-NEXT:    orr r1, r1, r2
; CHECK-NEXT:    and r2, r0, #128
; CHECK-NEXT:    orr r1, r1, r2
; CHECK-NEXT:    and r2, r0, #2
; CHECK-NEXT:    orr r1, r1, r2
; CHECK-NEXT:    and r0, r0, #256
; CHECK-NEXT:    orr r0, r1, r0
; CHECK-NEXT:    bx lr
  %x1 = and i32 %a, 1
  %y1 = and i32 %b, 4294967294
  %z1 = or i32 %y1, %x1
  %x2 = and i32 %a, 128
  %y2 = and i32 %z1, 4294967167
  %z2 = or i32 %y2, %x2
  %x3 = and i32 %a, 2
  %y3 = and i32 %z2, 4294967293
  %z3 = or i32 %y3, %x3
  %x4 = and i32 %a, 256
  %y4 = and i32 %z3, 4294967039
  %z4 = or i32 %y4, %x4
  ret i32 %z4
}

define void @bfi3_uses(i32 %a, i32 %b) {
; CHECK-LABEL: bfi3_uses:
; CHECK:       @ %bb.0:
; CHECK-NEXT:    push {r11, lr}
; CHECK-NEXT:    mov r12, r1
; CHECK-NEXT:    lsr r2, r0, #7
; CHECK-NEXT:    bfi r12, r0, #0, #1
; CHECK-NEXT:    lsr r3, r0, #1
; CHECK-NEXT:    lsr r0, r0, #8
; CHECK-NEXT:    mov r1, r12
; CHECK-NEXT:    bfi r1, r2, #7, #1
; CHECK-NEXT:    mov r2, r1
; CHECK-NEXT:    bfi r2, r3, #1, #1
; CHECK-NEXT:    mov r3, r2
; CHECK-NEXT:    bfi r3, r0, #8, #1
; CHECK-NEXT:    mov r0, r12
; CHECK-NEXT:    bl use
; CHECK-NEXT:    pop {r11, pc}
  %x1 = and i32 %a, 1
  %y1 = and i32 %b, 4294967294
  %z1 = or i32 %y1, %x1
  %x2 = and i32 %a, 128
  %y2 = and i32 %z1, 4294967167
  %z2 = or i32 %y2, %x2
  %x3 = and i32 %a, 2
  %y3 = and i32 %z2, 4294967293
  %z3 = or i32 %y3, %x3
  %x4 = and i32 %a, 256
  %y4 = and i32 %z3, 4294967039
  %z4 = or i32 %y4, %x4
  call void @use(i32 %z1, i32 %z2, i32 %z3, i32 %z4)
  ret void
}

define i32 @bfi4(i32 %A, i2 zeroext %BB, ptr %d) {
; CHECK-LABEL: bfi4:
; CHECK:       @ %bb.0: @ %entry
; CHECK-NEXT:    push {r11, lr}
; CHECK-NEXT:    lsr r12, r0, #1
; CHECK-NEXT:    and r3, r0, #8
; CHECK-NEXT:    bfi r1, r12, #2, #2
; CHECK-NEXT:    mov lr, #96
; CHECK-NEXT:    tst r0, #32
; CHECK-NEXT:    bfi r1, r12, #9, #2
; CHECK-NEXT:    movweq lr, #32
; CHECK-NEXT:    orr r1, r1, r3, lsl #8
; CHECK-NEXT:    and r3, r0, #64
; CHECK-NEXT:    and r0, r0, #128
; CHECK-NEXT:    orr r1, r1, lr
; CHECK-NEXT:    orr r1, r1, r3, lsl #1
; CHECK-NEXT:    str r1, [r2]
; CHECK-NEXT:    pop {r11, pc}
entry:
  %B = zext i2 %BB to i32
  %and = and i32 %A, 2
  %tobool12.not = icmp eq i32 %and, 0
  %or17 = or i32 %B, 516
  %spec.select112 = select i1 %tobool12.not, i32 %B, i32 %or17
  %and20 = and i32 %A, 4
  %tobool21.not = icmp eq i32 %and20, 0
  %or26 = or i32 %spec.select112, 1032
  %spec.select114 = select i1 %tobool21.not, i32 %spec.select112, i32 %or26
  store i32 %spec.select114, ptr %d, align 4
  %and29 = shl i32 %A, 8
  %l2 = and i32 %and29, 2048
  %l3 = or i32 %l2, %spec.select114
  %and38 = and i32 %A, 32
  %tobool39.not = icmp eq i32 %and38, 0
  %spec.select.v = select i1 %tobool39.not, i32 32, i32 96
  %spec.select = or i32 %l3, %spec.select.v
  %and45 = shl i32 %A, 1
  %l4 = and i32 %and45, 128
  %l5 = or i32 %l4, %spec.select
  store i32 %l5, ptr %d, align 4
  %and52 = and i32 %A, 128
  ret i32 %and52
}

declare void @use(i32, i32, i32, i32)