llvm/test/CodeGen/ARM/select.ll

; NOTE: Assertions have been autogenerated by utils/update_llc_test_checks.py UTC_ARGS: --version 4
; RUN: llc -mtriple=armv7-eabi -mattr=-fpregs %s -o - | FileCheck %s --check-prefixes=CHECK,CHECK-ARM
; RUN: llc -mtriple=armv7-eabi -mattr=+vfp2 %s -o - | FileCheck %s --check-prefixes=CHECK,CHECK-VFP
; RUN: llc -mtriple=thumbv7-apple-darwin -mattr=+neon,+thumb2 %s -o - | FileCheck %s --check-prefix=CHECK-NEON

define i32 @f1(i32 %a.s) {
; CHECK-LABEL: f1:
; CHECK:       @ %bb.0: @ %entry
; CHECK-NEXT:    mov r1, #3
; CHECK-NEXT:    cmp r0, #4
; CHECK-NEXT:    movweq r1, #2
; CHECK-NEXT:    mov r0, r1
; CHECK-NEXT:    bx lr
;
; CHECK-NEON-LABEL: f1:
; CHECK-NEON:       @ %bb.0: @ %entry
; CHECK-NEON-NEXT:    movs r1, #3
; CHECK-NEON-NEXT:    cmp r0, #4
; CHECK-NEON-NEXT:    it eq
; CHECK-NEON-NEXT:    moveq r1, #2
; CHECK-NEON-NEXT:    mov r0, r1
; CHECK-NEON-NEXT:    bx lr
entry:
    %tmp = icmp eq i32 %a.s, 4
    %tmp1.s = select i1 %tmp, i32 2, i32 3
    ret i32 %tmp1.s
}

define i32 @f2(i32 %a.s) {
; CHECK-LABEL: f2:
; CHECK:       @ %bb.0: @ %entry
; CHECK-NEXT:    mov r1, #3
; CHECK-NEXT:    cmp r0, #4
; CHECK-NEXT:    movwgt r1, #2
; CHECK-NEXT:    mov r0, r1
; CHECK-NEXT:    bx lr
;
; CHECK-NEON-LABEL: f2:
; CHECK-NEON:       @ %bb.0: @ %entry
; CHECK-NEON-NEXT:    movs r1, #3
; CHECK-NEON-NEXT:    cmp r0, #4
; CHECK-NEON-NEXT:    it gt
; CHECK-NEON-NEXT:    movgt r1, #2
; CHECK-NEON-NEXT:    mov r0, r1
; CHECK-NEON-NEXT:    bx lr
entry:
    %tmp = icmp sgt i32 %a.s, 4
    %tmp1.s = select i1 %tmp, i32 2, i32 3
    ret i32 %tmp1.s
}

define i32 @f3(i32 %a.s, i32 %b.s) {
; CHECK-LABEL: f3:
; CHECK:       @ %bb.0: @ %entry
; CHECK-NEXT:    mov r2, #3
; CHECK-NEXT:    cmp r0, r1
; CHECK-NEXT:    movwlt r2, #2
; CHECK-NEXT:    mov r0, r2
; CHECK-NEXT:    bx lr
;
; CHECK-NEON-LABEL: f3:
; CHECK-NEON:       @ %bb.0: @ %entry
; CHECK-NEON-NEXT:    movs r2, #3
; CHECK-NEON-NEXT:    cmp r0, r1
; CHECK-NEON-NEXT:    it lt
; CHECK-NEON-NEXT:    movlt r2, #2
; CHECK-NEON-NEXT:    mov r0, r2
; CHECK-NEON-NEXT:    bx lr
entry:
    %tmp = icmp slt i32 %a.s, %b.s
    %tmp1.s = select i1 %tmp, i32 2, i32 3
    ret i32 %tmp1.s
}

define i32 @f4(i32 %a.s, i32 %b.s) {
; CHECK-LABEL: f4:
; CHECK:       @ %bb.0: @ %entry
; CHECK-NEXT:    mov r2, #3
; CHECK-NEXT:    cmp r0, r1
; CHECK-NEXT:    movwle r2, #2
; CHECK-NEXT:    mov r0, r2
; CHECK-NEXT:    bx lr
;
; CHECK-NEON-LABEL: f4:
; CHECK-NEON:       @ %bb.0: @ %entry
; CHECK-NEON-NEXT:    movs r2, #3
; CHECK-NEON-NEXT:    cmp r0, r1
; CHECK-NEON-NEXT:    it le
; CHECK-NEON-NEXT:    movle r2, #2
; CHECK-NEON-NEXT:    mov r0, r2
; CHECK-NEON-NEXT:    bx lr
entry:
    %tmp = icmp sle i32 %a.s, %b.s
    %tmp1.s = select i1 %tmp, i32 2, i32 3
    ret i32 %tmp1.s
}

define i32 @f5(i32 %a.u, i32 %b.u) {
; CHECK-LABEL: f5:
; CHECK:       @ %bb.0: @ %entry
; CHECK-NEXT:    mov r2, #3
; CHECK-NEXT:    cmp r0, r1
; CHECK-NEXT:    movwls r2, #2
; CHECK-NEXT:    mov r0, r2
; CHECK-NEXT:    bx lr
;
; CHECK-NEON-LABEL: f5:
; CHECK-NEON:       @ %bb.0: @ %entry
; CHECK-NEON-NEXT:    movs r2, #3
; CHECK-NEON-NEXT:    cmp r0, r1
; CHECK-NEON-NEXT:    it ls
; CHECK-NEON-NEXT:    movls r2, #2
; CHECK-NEON-NEXT:    mov r0, r2
; CHECK-NEON-NEXT:    bx lr
entry:
    %tmp = icmp ule i32 %a.u, %b.u
    %tmp1.s = select i1 %tmp, i32 2, i32 3
    ret i32 %tmp1.s
}

define i32 @f6(i32 %a.u, i32 %b.u) {
; CHECK-LABEL: f6:
; CHECK:       @ %bb.0: @ %entry
; CHECK-NEXT:    mov r2, #3
; CHECK-NEXT:    cmp r0, r1
; CHECK-NEXT:    movwhi r2, #2
; CHECK-NEXT:    mov r0, r2
; CHECK-NEXT:    bx lr
;
; CHECK-NEON-LABEL: f6:
; CHECK-NEON:       @ %bb.0: @ %entry
; CHECK-NEON-NEXT:    movs r2, #3
; CHECK-NEON-NEXT:    cmp r0, r1
; CHECK-NEON-NEXT:    it hi
; CHECK-NEON-NEXT:    movhi r2, #2
; CHECK-NEON-NEXT:    mov r0, r2
; CHECK-NEON-NEXT:    bx lr
entry:
    %tmp = icmp ugt i32 %a.u, %b.u
    %tmp1.s = select i1 %tmp, i32 2, i32 3
    ret i32 %tmp1.s
}

define double @f7(double %a, double %b) {
; CHECK-ARM-LABEL: f7:
; CHECK-ARM:       @ %bb.0:
; CHECK-ARM-NEXT:    .save {r4, r5, r11, lr}
; CHECK-ARM-NEXT:    push {r4, r5, r11, lr}
; CHECK-ARM-NEXT:    mov r4, r3
; CHECK-ARM-NEXT:    movw r3, #48758
; CHECK-ARM-NEXT:    mov r5, r2
; CHECK-ARM-NEXT:    movw r2, #14680
; CHECK-ARM-NEXT:    movt r2, #51380
; CHECK-ARM-NEXT:    movt r3, #16371
; CHECK-ARM-NEXT:    bl __aeabi_dcmplt
; CHECK-ARM-NEXT:    cmp r0, #0
; CHECK-ARM-NEXT:    movwne r4, #0
; CHECK-ARM-NEXT:    movwne r5, #0
; CHECK-ARM-NEXT:    movtne r4, #49136
; CHECK-ARM-NEXT:    mov r0, r5
; CHECK-ARM-NEXT:    mov r1, r4
; CHECK-ARM-NEXT:    pop {r4, r5, r11, pc}
;
; CHECK-VFP-LABEL: f7:
; CHECK-VFP:       @ %bb.0:
; CHECK-VFP-NEXT:    vldr d17, .LCPI6_0
; CHECK-VFP-NEXT:    vmov d18, r0, r1
; CHECK-VFP-NEXT:    vmov.f64 d16, #-1.000000e+00
; CHECK-VFP-NEXT:    vcmp.f64 d18, d17
; CHECK-VFP-NEXT:    vmrs APSR_nzcv, fpscr
; CHECK-VFP-NEXT:    vmov d19, r2, r3
; CHECK-VFP-NEXT:    vmovmi.f64 d19, d16
; CHECK-VFP-NEXT:    vmov r0, r1, d19
; CHECK-VFP-NEXT:    bx lr
; CHECK-VFP-NEXT:    .p2align 3
; CHECK-VFP-NEXT:  @ %bb.1:
; CHECK-VFP-NEXT:  .LCPI6_0:
; CHECK-VFP-NEXT:    .long 3367254360 @ double 1.234
; CHECK-VFP-NEXT:    .long 1072938614
;
; CHECK-NEON-LABEL: f7:
; CHECK-NEON:       @ %bb.0:
; CHECK-NEON-NEXT:    vldr d17, LCPI6_0
; CHECK-NEON-NEXT:    vmov d18, r0, r1
; CHECK-NEON-NEXT:    vmov d19, r2, r3
; CHECK-NEON-NEXT:    vcmp.f64 d18, d17
; CHECK-NEON-NEXT:    vmov.f64 d16, #-1.000000e+00
; CHECK-NEON-NEXT:    vmrs APSR_nzcv, fpscr
; CHECK-NEON-NEXT:    it mi
; CHECK-NEON-NEXT:    vmovmi.f64 d19, d16
; CHECK-NEON-NEXT:    vmov r0, r1, d19
; CHECK-NEON-NEXT:    bx lr
; CHECK-NEON-NEXT:    .p2align 3
; CHECK-NEON-NEXT:  @ %bb.1:
; CHECK-NEON-NEXT:    .data_region
; CHECK-NEON-NEXT:  LCPI6_0:
; CHECK-NEON-NEXT:    .long 3367254360 @ double 1.234
; CHECK-NEON-NEXT:    .long 1072938614
; CHECK-NEON-NEXT:    .end_data_region
    %tmp = fcmp olt double %a, 1.234e+00
    %tmp1 = select i1 %tmp, double -1.000e+00, double %b
    ret double %tmp1
}

; <rdar://problem/7260094>
;
; We used to generate really horrible code for this function. The main cause was
; a lack of a custom lowering routine for an ISD::SELECT. This would result in
; two "it" blocks in the code: one for the "icmp" and another to move the index
; into the constant pool based on the value of the "icmp". If we have one "it"
; block generated, odds are good that we have close to the ideal code for this.
define arm_apcscc float @f8(i32 %a) nounwind {
; CHECK-ARM-LABEL: f8:
; CHECK-ARM:       @ %bb.0:
; CHECK-ARM-NEXT:    movw r1, #29905
; CHECK-ARM-NEXT:    movw r2, #1123
; CHECK-ARM-NEXT:    movt r1, #16408
; CHECK-ARM-NEXT:    cmp r0, r2
; CHECK-ARM-NEXT:    movweq r1, #62390
; CHECK-ARM-NEXT:    movteq r1, #16285
; CHECK-ARM-NEXT:    mov r0, r1
; CHECK-ARM-NEXT:    bx lr
;
; CHECK-VFP-LABEL: f8:
; CHECK-VFP:       @ %bb.0:
; CHECK-VFP-NEXT:    movw r2, #1123
; CHECK-VFP-NEXT:    adr r1, .LCPI7_0
; CHECK-VFP-NEXT:    cmp r0, r2
; CHECK-VFP-NEXT:    addeq r1, r1, #4
; CHECK-VFP-NEXT:    ldr r0, [r1]
; CHECK-VFP-NEXT:    bx lr
; CHECK-VFP-NEXT:    .p2align 2
; CHECK-VFP-NEXT:  @ %bb.1:
; CHECK-VFP-NEXT:  .LCPI7_0:
; CHECK-VFP-NEXT:    .long 0x401874d1 @ float 2.38212991
; CHECK-VFP-NEXT:    .long 0x3f9df3b6 @ float 1.23399997
;
; CHECK-NEON-LABEL: f8:
; CHECK-NEON:       @ %bb.0:
; CHECK-NEON-NEXT:    adr r1, LCPI7_0
; CHECK-NEON-NEXT:    movw r2, #1123
; CHECK-NEON-NEXT:    cmp r0, r2
; CHECK-NEON-NEXT:    it eq
; CHECK-NEON-NEXT:    addeq r1, #4
; CHECK-NEON-NEXT:    ldr r0, [r1]
; CHECK-NEON-NEXT:    bx lr
; CHECK-NEON-NEXT:    .p2align 2
; CHECK-NEON-NEXT:  @ %bb.1:
; CHECK-NEON-NEXT:    .data_region
; CHECK-NEON-NEXT:  LCPI7_0:
; CHECK-NEON-NEXT:    .long 0x401874d1 @ float 2.38212991
; CHECK-NEON-NEXT:    .long 0x3f9df3b6 @ float 1.23399997
; CHECK-NEON-NEXT:    .end_data_region
  %tmp = icmp eq i32 %a, 1123
  %tmp1 = select i1 %tmp, float 0x3FF3BE76C0000000, float 0x40030E9A20000000
  ret float %tmp1
}

; <rdar://problem/9049552>
; Glue values can only have a single use, but the following test exposed a
; case where a SELECT was lowered with 2 uses of a comparison, causing the
; scheduler to assert.
declare ptr @objc_msgSend(ptr, ptr, ...)
define void @f9() optsize {
; CHECK-LABEL: f9:
; CHECK:       @ %bb.0: @ %entry
; CHECK-NEXT:    .save {r11, lr}
; CHECK-NEXT:    push {r11, lr}
; CHECK-NEXT:    .pad #8
; CHECK-NEXT:    sub sp, sp, #8
; CHECK-NEXT:    movw r2, #0
; CHECK-NEXT:    movw r3, #0
; CHECK-NEXT:    mov r1, #1065353216
; CHECK-NEXT:    mov r0, #0
; CHECK-NEXT:    movt r2, #16672
; CHECK-NEXT:    movt r3, #32704
; CHECK-NEXT:    strd r0, r1, [sp]
; CHECK-NEXT:    bl objc_msgSend
; CHECK-NEXT:    add sp, sp, #8
; CHECK-NEXT:    pop {r11, pc}
;
; CHECK-NEON-LABEL: f9:
; CHECK-NEON:       @ %bb.0: @ %entry
; CHECK-NEON-NEXT:    str lr, [sp, #-4]!
; CHECK-NEON-NEXT:    sub sp, #8
; CHECK-NEON-NEXT:    movs r2, #0
; CHECK-NEON-NEXT:    movs r3, #0
; CHECK-NEON-NEXT:    mov.w r0, #1065353216
; CHECK-NEON-NEXT:    movs r1, #0
; CHECK-NEON-NEXT:    movt r2, #16672
; CHECK-NEON-NEXT:    movt r3, #32704
; CHECK-NEON-NEXT:    strd r1, r0, [sp]
; CHECK-NEON-NEXT:    bl _objc_msgSend
; CHECK-NEON-NEXT:    add sp, #8
; CHECK-NEON-NEXT:    ldr lr, [sp], #4
; CHECK-NEON-NEXT:    bx lr
entry:
  %cmp = icmp eq ptr undef, inttoptr (i32 4 to ptr)
  %conv191 = select i1 %cmp, float -3.000000e+00, float 0.000000e+00
  %conv195 = select i1 %cmp, double -1.000000e+00, double 0.000000e+00
  %add = fadd double %conv195, 1.100000e+01
  %conv196 = fptrunc double %add to float
  %add201 = fadd float undef, %conv191
  %tmp484 = bitcast float %conv196 to i32
  %tmp478 = bitcast float %add201 to i32
  %tmp490 = insertvalue [2 x i32] undef, i32 %tmp484, 0
  %tmp493 = insertvalue [2 x i32] %tmp490, i32 %tmp478, 1
  call void @objc_msgSend(ptr undef, ptr undef, [2 x i32] %tmp493, i32 0, float 1.000000e+00) optsize
  ret void
}

define float @f10(i32 %a, i32 %b) nounwind uwtable readnone ssp {
; CHECK-ARM-LABEL: f10:
; CHECK-ARM:       @ %bb.0:
; CHECK-ARM-NEXT:    mov r2, #0
; CHECK-ARM-NEXT:    cmp r0, r1
; CHECK-ARM-NEXT:    moveq r2, #1065353216
; CHECK-ARM-NEXT:    mov r0, r2
; CHECK-ARM-NEXT:    bx lr
;
; CHECK-VFP-LABEL: f10:
; CHECK-VFP:       @ %bb.0:
; CHECK-VFP-NEXT:    vmov.f32 s0, #1.000000e+00
; CHECK-VFP-NEXT:    vldr s2, .LCPI9_0
; CHECK-VFP-NEXT:    cmp r0, r1
; CHECK-VFP-NEXT:    vmoveq.f32 s2, s0
; CHECK-VFP-NEXT:    vmov r0, s2
; CHECK-VFP-NEXT:    bx lr
; CHECK-VFP-NEXT:    .p2align 2
; CHECK-VFP-NEXT:  @ %bb.1:
; CHECK-VFP-NEXT:  .LCPI9_0:
; CHECK-VFP-NEXT:    .long 0x00000000 @ float 0
;
; CHECK-NEON-LABEL: f10:
; CHECK-NEON:       @ %bb.0:
; CHECK-NEON-NEXT:    vldr s2, LCPI9_0
; CHECK-NEON-NEXT:    vmov.f32 s0, #1.000000e+00
; CHECK-NEON-NEXT:    cmp r0, r1
; CHECK-NEON-NEXT:    it eq
; CHECK-NEON-NEXT:    vmoveq.f32 s2, s0
; CHECK-NEON-NEXT:    vmov r0, s2
; CHECK-NEON-NEXT:    bx lr
; CHECK-NEON-NEXT:    .p2align 2
; CHECK-NEON-NEXT:  @ %bb.1:
; CHECK-NEON-NEXT:    .data_region
; CHECK-NEON-NEXT:  LCPI9_0:
; CHECK-NEON-NEXT:    .long 0x00000000 @ float 0
; CHECK-NEON-NEXT:    .end_data_region
  %1 = icmp eq i32 %a, %b
  %2 = zext i1 %1 to i32
  %3 = sitofp i32 %2 to float
  ret float %3
}

define float @f11(i32 %a, i32 %b) nounwind uwtable readnone ssp {
; CHECK-ARM-LABEL: f11:
; CHECK-ARM:       @ %bb.0:
; CHECK-ARM-NEXT:    mov r2, #0
; CHECK-ARM-NEXT:    cmp r0, r1
; CHECK-ARM-NEXT:    movweq r2, #0
; CHECK-ARM-NEXT:    movteq r2, #49024
; CHECK-ARM-NEXT:    mov r0, r2
; CHECK-ARM-NEXT:    bx lr
;
; CHECK-VFP-LABEL: f11:
; CHECK-VFP:       @ %bb.0:
; CHECK-VFP-NEXT:    vmov.f32 s0, #-1.000000e+00
; CHECK-VFP-NEXT:    vldr s2, .LCPI10_0
; CHECK-VFP-NEXT:    cmp r0, r1
; CHECK-VFP-NEXT:    vmoveq.f32 s2, s0
; CHECK-VFP-NEXT:    vmov r0, s2
; CHECK-VFP-NEXT:    bx lr
; CHECK-VFP-NEXT:    .p2align 2
; CHECK-VFP-NEXT:  @ %bb.1:
; CHECK-VFP-NEXT:  .LCPI10_0:
; CHECK-VFP-NEXT:    .long 0x00000000 @ float 0
;
; CHECK-NEON-LABEL: f11:
; CHECK-NEON:       @ %bb.0:
; CHECK-NEON-NEXT:    vldr s2, LCPI10_0
; CHECK-NEON-NEXT:    vmov.f32 s0, #-1.000000e+00
; CHECK-NEON-NEXT:    cmp r0, r1
; CHECK-NEON-NEXT:    it eq
; CHECK-NEON-NEXT:    vmoveq.f32 s2, s0
; CHECK-NEON-NEXT:    vmov r0, s2
; CHECK-NEON-NEXT:    bx lr
; CHECK-NEON-NEXT:    .p2align 2
; CHECK-NEON-NEXT:  @ %bb.1:
; CHECK-NEON-NEXT:    .data_region
; CHECK-NEON-NEXT:  LCPI10_0:
; CHECK-NEON-NEXT:    .long 0x00000000 @ float 0
; CHECK-NEON-NEXT:    .end_data_region
  %1 = icmp eq i32 %a, %b
  %2 = sitofp i1 %1 to float
  ret float %2
}

define float @f12(i32 %a, i32 %b) nounwind uwtable readnone ssp {
; CHECK-ARM-LABEL: f12:
; CHECK-ARM:       @ %bb.0:
; CHECK-ARM-NEXT:    mov r2, #0
; CHECK-ARM-NEXT:    cmp r0, r1
; CHECK-ARM-NEXT:    moveq r2, #1065353216
; CHECK-ARM-NEXT:    mov r0, r2
; CHECK-ARM-NEXT:    bx lr
;
; CHECK-VFP-LABEL: f12:
; CHECK-VFP:       @ %bb.0:
; CHECK-VFP-NEXT:    vmov.f32 s0, #1.000000e+00
; CHECK-VFP-NEXT:    vldr s2, .LCPI11_0
; CHECK-VFP-NEXT:    cmp r0, r1
; CHECK-VFP-NEXT:    vmoveq.f32 s2, s0
; CHECK-VFP-NEXT:    vmov r0, s2
; CHECK-VFP-NEXT:    bx lr
; CHECK-VFP-NEXT:    .p2align 2
; CHECK-VFP-NEXT:  @ %bb.1:
; CHECK-VFP-NEXT:  .LCPI11_0:
; CHECK-VFP-NEXT:    .long 0x00000000 @ float 0
;
; CHECK-NEON-LABEL: f12:
; CHECK-NEON:       @ %bb.0:
; CHECK-NEON-NEXT:    vldr s2, LCPI11_0
; CHECK-NEON-NEXT:    vmov.f32 s0, #1.000000e+00
; CHECK-NEON-NEXT:    cmp r0, r1
; CHECK-NEON-NEXT:    it eq
; CHECK-NEON-NEXT:    vmoveq.f32 s2, s0
; CHECK-NEON-NEXT:    vmov r0, s2
; CHECK-NEON-NEXT:    bx lr
; CHECK-NEON-NEXT:    .p2align 2
; CHECK-NEON-NEXT:  @ %bb.1:
; CHECK-NEON-NEXT:    .data_region
; CHECK-NEON-NEXT:  LCPI11_0:
; CHECK-NEON-NEXT:    .long 0x00000000 @ float 0
; CHECK-NEON-NEXT:    .end_data_region
  %1 = icmp eq i32 %a, %b
  %2 = uitofp i1 %1 to float
  ret float %2
}

define i1 @test_overflow_recombine(i32 %in1, i32 %in2) {
; CHECK-LABEL: test_overflow_recombine:
; CHECK:       @ %bb.0:
; CHECK-NEXT:    smull r0, r1, r0, r1
; CHECK-NEXT:    subs r0, r1, r0, asr #31
; CHECK-NEXT:    movwne r0, #1
; CHECK-NEXT:    bx lr
;
; CHECK-NEON-LABEL: test_overflow_recombine:
; CHECK-NEON:       @ %bb.0:
; CHECK-NEON-NEXT:    smull r0, r1, r0, r1
; CHECK-NEON-NEXT:    subs.w r0, r1, r0, asr #31
; CHECK-NEON-NEXT:    it ne
; CHECK-NEON-NEXT:    movne r0, #1
; CHECK-NEON-NEXT:    bx lr
  %prod = call { i32, i1 } @llvm.smul.with.overflow.i32(i32 %in1, i32 %in2)
  %overflow = extractvalue { i32, i1 } %prod, 1
  ret i1 %overflow
}

declare { i32, i1 } @llvm.smul.with.overflow.i32(i32, i32)