llvm/test/CodeGen/Thumb2/mve-vmaxnma-tailpred.ll

; NOTE: Assertions have been autogenerated by utils/update_llc_test_checks.py
; RUN: llc -mtriple=thumbv8.1m.main-none-none-eabi -mattr=+mve.fp %s -o - | FileCheck %s

define float @minf32(float* noalias nocapture readonly %s1, float* noalias nocapture readonly %s2, float* noalias nocapture %d, i32 %n) {
; CHECK-LABEL: minf32:
; CHECK:       @ %bb.0: @ %entry
; CHECK-NEXT:    .save {r7, lr}
; CHECK-NEXT:    push {r7, lr}
; CHECK-NEXT:    cmp r3, #1
; CHECK-NEXT:    it lt
; CHECK-NEXT:    poplt {r7, pc}
; CHECK-NEXT:  .LBB0_1: @ %vector.ph
; CHECK-NEXT:    dlstp.32 lr, r3
; CHECK-NEXT:  .LBB0_2: @ %vector.body
; CHECK-NEXT:    @ =>This Inner Loop Header: Depth=1
; CHECK-NEXT:    vldrw.u32 q0, [r0], #16
; CHECK-NEXT:    vldrw.u32 q1, [r1], #16
; CHECK-NEXT:    vabs.f32 q0, q0
; CHECK-NEXT:    vminnm.f32 q0, q0, q1
; CHECK-NEXT:    vstrw.32 q0, [r2], #16
; CHECK-NEXT:    letp lr, .LBB0_2
; CHECK-NEXT:  @ %bb.3: @ %for.cond.cleanup
; CHECK-NEXT:    pop {r7, pc}
entry:
  %cmp8 = icmp sgt i32 %n, 0
  br i1 %cmp8, label %vector.ph, label %for.cond.cleanup

vector.ph:                                        ; preds = %entry
  %n.rnd.up = add i32 %n, 3
  %n.vec = and i32 %n.rnd.up, -4
  br label %vector.body

vector.body:                                      ; preds = %vector.body, %vector.ph
  %index = phi i32 [ 0, %vector.ph ], [ %index.next, %vector.body ]
  %active.lane.mask = call <4 x i1> @llvm.get.active.lane.mask.v4i1.i32(i32 %index, i32 %n)
  %0 = getelementptr inbounds float, float* %s1, i32 %index
  %1 = bitcast float* %0 to <4 x float>*
  %wide.masked.load = call <4 x float> @llvm.masked.load.v4f32.p0v4f32(<4 x float>* %1, i32 4, <4 x i1> %active.lane.mask, <4 x float> poison)
  %2 = call fast <4 x float> @llvm.fabs.v4f32(<4 x float> %wide.masked.load)
  %3 = getelementptr inbounds float, float* %s2, i32 %index
  %4 = bitcast float* %3 to <4 x float>*
  %wide.masked.load10 = call <4 x float> @llvm.masked.load.v4f32.p0v4f32(<4 x float>* %4, i32 4, <4 x i1> %active.lane.mask, <4 x float> poison)
  %5 = call fast <4 x float> @llvm.minnum.v4f32(<4 x float> %2, <4 x float> %wide.masked.load10)
  %6 = getelementptr inbounds float, float* %d, i32 %index
  %7 = bitcast float* %6 to <4 x float>*
  call void @llvm.masked.store.v4f32.p0v4f32(<4 x float> %5, <4 x float>* %7, i32 4, <4 x i1> %active.lane.mask)
  %index.next = add i32 %index, 4
  %8 = icmp eq i32 %index.next, %n.vec
  br i1 %8, label %for.cond.cleanup, label %vector.body

for.cond.cleanup:                                 ; preds = %vector.body, %entry
  ret float undef
}

define float @maxaf32(float* noalias nocapture readonly %s1, float* noalias nocapture readonly %s2, float* noalias nocapture %d, i32 %n) {
; CHECK-LABEL: maxaf32:
; CHECK:       @ %bb.0: @ %entry
; CHECK-NEXT:    .save {r7, lr}
; CHECK-NEXT:    push {r7, lr}
; CHECK-NEXT:    cmp r3, #1
; CHECK-NEXT:    it lt
; CHECK-NEXT:    poplt {r7, pc}
; CHECK-NEXT:  .LBB1_1: @ %vector.ph
; CHECK-NEXT:    dlstp.32 lr, r3
; CHECK-NEXT:  .LBB1_2: @ %vector.body
; CHECK-NEXT:    @ =>This Inner Loop Header: Depth=1
; CHECK-NEXT:    vldrw.u32 q0, [r1], #16
; CHECK-NEXT:    vldrw.u32 q1, [r0], #16
; CHECK-NEXT:    vmaxnma.f32 q1, q0
; CHECK-NEXT:    vstrw.32 q1, [r2], #16
; CHECK-NEXT:    letp lr, .LBB1_2
; CHECK-NEXT:  @ %bb.3: @ %for.cond.cleanup
; CHECK-NEXT:    pop {r7, pc}
entry:
  %cmp8 = icmp sgt i32 %n, 0
  br i1 %cmp8, label %vector.ph, label %for.cond.cleanup

vector.ph:                                        ; preds = %entry
  %n.rnd.up = add i32 %n, 3
  %n.vec = and i32 %n.rnd.up, -4
  br label %vector.body

vector.body:                                      ; preds = %vector.body, %vector.ph
  %index = phi i32 [ 0, %vector.ph ], [ %index.next, %vector.body ]
  %active.lane.mask = call <4 x i1> @llvm.get.active.lane.mask.v4i1.i32(i32 %index, i32 %n)
  %0 = getelementptr inbounds float, float* %s1, i32 %index
  %1 = bitcast float* %0 to <4 x float>*
  %wide.masked.load = call <4 x float> @llvm.masked.load.v4f32.p0v4f32(<4 x float>* %1, i32 4, <4 x i1> %active.lane.mask, <4 x float> poison)
  %2 = call fast <4 x float> @llvm.fabs.v4f32(<4 x float> %wide.masked.load)
  %3 = getelementptr inbounds float, float* %s2, i32 %index
  %4 = bitcast float* %3 to <4 x float>*
  %wide.masked.load10 = call <4 x float> @llvm.masked.load.v4f32.p0v4f32(<4 x float>* %4, i32 4, <4 x i1> %active.lane.mask, <4 x float> poison)
  %5 = call fast <4 x float> @llvm.fabs.v4f32(<4 x float> %wide.masked.load10)
  %6 = call fast <4 x float> @llvm.maxnum.v4f32(<4 x float> %2, <4 x float> %5)
  %7 = getelementptr inbounds float, float* %d, i32 %index
  %8 = bitcast float* %7 to <4 x float>*
  call void @llvm.masked.store.v4f32.p0v4f32(<4 x float> %6, <4 x float>* %8, i32 4, <4 x i1> %active.lane.mask)
  %index.next = add i32 %index, 4
  %9 = icmp eq i32 %index.next, %n.vec
  br i1 %9, label %for.cond.cleanup, label %vector.body

for.cond.cleanup:                                 ; preds = %vector.body, %entry
  ret float undef
}


define half @maxf16(half* noalias nocapture readonly %s1, half* noalias nocapture readonly %s2, half* noalias nocapture %d, i32 %n) {
; CHECK-LABEL: maxf16:
; CHECK:       @ %bb.0: @ %entry
; CHECK-NEXT:    .save {r7, lr}
; CHECK-NEXT:    push {r7, lr}
; CHECK-NEXT:    cmp r3, #1
; CHECK-NEXT:    it lt
; CHECK-NEXT:    poplt {r7, pc}
; CHECK-NEXT:  .LBB2_1: @ %vector.ph
; CHECK-NEXT:    dlstp.16 lr, r3
; CHECK-NEXT:  .LBB2_2: @ %vector.body
; CHECK-NEXT:    @ =>This Inner Loop Header: Depth=1
; CHECK-NEXT:    vldrh.u16 q0, [r0], #16
; CHECK-NEXT:    vldrh.u16 q1, [r1], #16
; CHECK-NEXT:    vabs.f16 q0, q0
; CHECK-NEXT:    vmaxnm.f16 q0, q0, q1
; CHECK-NEXT:    vstrh.16 q0, [r2], #16
; CHECK-NEXT:    letp lr, .LBB2_2
; CHECK-NEXT:  @ %bb.3: @ %for.cond.cleanup
; CHECK-NEXT:    pop {r7, pc}
entry:
  %cmp10 = icmp sgt i32 %n, 0
  br i1 %cmp10, label %vector.ph, label %for.cond.cleanup

vector.ph:                                        ; preds = %entry
  %n.rnd.up = add i32 %n, 7
  %n.vec = and i32 %n.rnd.up, -8
  br label %vector.body

vector.body:                                      ; preds = %vector.body, %vector.ph
  %index = phi i32 [ 0, %vector.ph ], [ %index.next, %vector.body ]
  %active.lane.mask = call <8 x i1> @llvm.get.active.lane.mask.v8i1.i32(i32 %index, i32 %n)
  %0 = getelementptr inbounds half, half* %s1, i32 %index
  %1 = bitcast half* %0 to <8 x half>*
  %wide.masked.load = call <8 x half> @llvm.masked.load.v8f16.p0v8f16(<8 x half>* %1, i32 2, <8 x i1> %active.lane.mask, <8 x half> poison)
  %2 = call fast <8 x half> @llvm.fabs.v8f16(<8 x half> %wide.masked.load)
  %3 = getelementptr inbounds half, half* %s2, i32 %index
  %4 = bitcast half* %3 to <8 x half>*
  %wide.masked.load12 = call <8 x half> @llvm.masked.load.v8f16.p0v8f16(<8 x half>* %4, i32 2, <8 x i1> %active.lane.mask, <8 x half> poison)
  %5 = call fast <8 x half> @llvm.maxnum.v8f16(<8 x half> %2, <8 x half> %wide.masked.load12)
  %6 = getelementptr inbounds half, half* %d, i32 %index
  %7 = bitcast half* %6 to <8 x half>*
  call void @llvm.masked.store.v8f16.p0v8f16(<8 x half> %5, <8 x half>* %7, i32 2, <8 x i1> %active.lane.mask)
  %index.next = add i32 %index, 8
  %8 = icmp eq i32 %index.next, %n.vec
  br i1 %8, label %for.cond.cleanup, label %vector.body

for.cond.cleanup:                                 ; preds = %vector.body, %entry
  ret half undef
}

define half @minaf16(half* noalias nocapture readonly %s1, half* noalias nocapture readonly %s2, half* noalias nocapture %d, i32 %n) {
; CHECK-LABEL: minaf16:
; CHECK:       @ %bb.0: @ %entry
; CHECK-NEXT:    .save {r7, lr}
; CHECK-NEXT:    push {r7, lr}
; CHECK-NEXT:    cmp r3, #1
; CHECK-NEXT:    it lt
; CHECK-NEXT:    poplt {r7, pc}
; CHECK-NEXT:  .LBB3_1: @ %vector.ph
; CHECK-NEXT:    dlstp.16 lr, r3
; CHECK-NEXT:  .LBB3_2: @ %vector.body
; CHECK-NEXT:    @ =>This Inner Loop Header: Depth=1
; CHECK-NEXT:    vldrh.u16 q0, [r1], #16
; CHECK-NEXT:    vldrh.u16 q1, [r0], #16
; CHECK-NEXT:    vminnma.f16 q1, q0
; CHECK-NEXT:    vstrh.16 q1, [r2], #16
; CHECK-NEXT:    letp lr, .LBB3_2
; CHECK-NEXT:  @ %bb.3: @ %for.cond.cleanup
; CHECK-NEXT:    pop {r7, pc}
entry:
  %cmp10 = icmp sgt i32 %n, 0
  br i1 %cmp10, label %vector.ph, label %for.cond.cleanup

vector.ph:                                        ; preds = %entry
  %n.rnd.up = add i32 %n, 7
  %n.vec = and i32 %n.rnd.up, -8
  br label %vector.body

vector.body:                                      ; preds = %vector.body, %vector.ph
  %index = phi i32 [ 0, %vector.ph ], [ %index.next, %vector.body ]
  %active.lane.mask = call <8 x i1> @llvm.get.active.lane.mask.v8i1.i32(i32 %index, i32 %n)
  %0 = getelementptr inbounds half, half* %s1, i32 %index
  %1 = bitcast half* %0 to <8 x half>*
  %wide.masked.load = call <8 x half> @llvm.masked.load.v8f16.p0v8f16(<8 x half>* %1, i32 2, <8 x i1> %active.lane.mask, <8 x half> poison)
  %2 = call fast <8 x half> @llvm.fabs.v8f16(<8 x half> %wide.masked.load)
  %3 = getelementptr inbounds half, half* %s2, i32 %index
  %4 = bitcast half* %3 to <8 x half>*
  %wide.masked.load12 = call <8 x half> @llvm.masked.load.v8f16.p0v8f16(<8 x half>* %4, i32 2, <8 x i1> %active.lane.mask, <8 x half> poison)
  %5 = call fast <8 x half> @llvm.fabs.v8f16(<8 x half> %wide.masked.load12)
  %6 = call fast <8 x half> @llvm.minnum.v8f16(<8 x half> %2, <8 x half> %5)
  %7 = getelementptr inbounds half, half* %d, i32 %index
  %8 = bitcast half* %7 to <8 x half>*
  call void @llvm.masked.store.v8f16.p0v8f16(<8 x half> %6, <8 x half>* %8, i32 2, <8 x i1> %active.lane.mask)
  %index.next = add i32 %index, 8
  %9 = icmp eq i32 %index.next, %n.vec
  br i1 %9, label %for.cond.cleanup, label %vector.body

for.cond.cleanup:                                 ; preds = %vector.body, %entry
  ret half undef
}

declare <4 x i1> @llvm.get.active.lane.mask.v4i1.i32(i32, i32)
declare <4 x float> @llvm.masked.load.v4f32.p0v4f32(<4 x float>*, i32 immarg, <4 x i1>, <4 x float>)
declare <4 x float> @llvm.fabs.v4f32(<4 x float>)
declare <4 x float> @llvm.minnum.v4f32(<4 x float>, <4 x float>)
declare <4 x float> @llvm.maxnum.v4f32(<4 x float>, <4 x float>)
declare void @llvm.masked.store.v4f32.p0v4f32(<4 x float>, <4 x float>*, i32 immarg, <4 x i1>)
declare <8 x i1> @llvm.get.active.lane.mask.v8i1.i32(i32, i32)
declare <8 x half> @llvm.masked.load.v8f16.p0v8f16(<8 x half>*, i32 immarg, <8 x i1>, <8 x half>)
declare <8 x half> @llvm.fabs.v8f16(<8 x half>)
declare <8 x half> @llvm.minnum.v8f16(<8 x half>, <8 x half>)
declare <8 x half> @llvm.maxnum.v8f16(<8 x half>, <8 x half>)
declare void @llvm.masked.store.v8f16.p0v8f16(<8 x half>, <8 x half>*, i32 immarg, <8 x i1>)