; NOTE: Assertions have been autogenerated by utils/update_llc_test_checks.py
; RUN: llc < %s -mtriple=aarch64-linux-gnuabi -mattr=+fullfp16 -O3 | FileCheck %s
define void @fma_dup_f16(ptr noalias nocapture noundef readonly %A, half noundef %B, ptr noalias nocapture noundef %C, i32 noundef %n) {
; CHECK-LABEL: fma_dup_f16:
; CHECK: // %bb.0: // %entry
; CHECK-NEXT: // kill: def $h0 killed $h0 def $q0
; CHECK-NEXT: cbz w2, .LBB0_8
; CHECK-NEXT: // %bb.1: // %for.body.preheader
; CHECK-NEXT: cmp w2, #15
; CHECK-NEXT: mov w8, w2
; CHECK-NEXT: b.hi .LBB0_3
; CHECK-NEXT: // %bb.2:
; CHECK-NEXT: mov x9, xzr
; CHECK-NEXT: b .LBB0_6
; CHECK-NEXT: .LBB0_3: // %vector.ph
; CHECK-NEXT: and x9, x8, #0xfffffff0
; CHECK-NEXT: add x10, x1, #16
; CHECK-NEXT: add x11, x0, #16
; CHECK-NEXT: mov x12, x9
; CHECK-NEXT: .LBB0_4: // %vector.body
; CHECK-NEXT: // =>This Inner Loop Header: Depth=1
; CHECK-NEXT: ldp q1, q4, [x10, #-16]
; CHECK-NEXT: subs x12, x12, #16
; CHECK-NEXT: ldp q2, q3, [x11, #-16]
; CHECK-NEXT: add x11, x11, #32
; CHECK-NEXT: fmla v1.8h, v2.8h, v0.h[0]
; CHECK-NEXT: fmla v4.8h, v3.8h, v0.h[0]
; CHECK-NEXT: stp q1, q4, [x10, #-16]
; CHECK-NEXT: add x10, x10, #32
; CHECK-NEXT: b.ne .LBB0_4
; CHECK-NEXT: // %bb.5: // %middle.block
; CHECK-NEXT: cmp x9, x8
; CHECK-NEXT: b.eq .LBB0_8
; CHECK-NEXT: .LBB0_6: // %for.body.preheader1
; CHECK-NEXT: lsl x10, x9, #1
; CHECK-NEXT: sub x8, x8, x9
; CHECK-NEXT: add x9, x1, x10
; CHECK-NEXT: add x10, x0, x10
; CHECK-NEXT: .LBB0_7: // %for.body
; CHECK-NEXT: // =>This Inner Loop Header: Depth=1
; CHECK-NEXT: ldr h1, [x10], #2
; CHECK-NEXT: ldr h2, [x9]
; CHECK-NEXT: subs x8, x8, #1
; CHECK-NEXT: fmadd h1, h1, h0, h2
; CHECK-NEXT: str h1, [x9], #2
; CHECK-NEXT: b.ne .LBB0_7
; CHECK-NEXT: .LBB0_8: // %for.cond.cleanup
; CHECK-NEXT: ret
entry:
%cmp6.not = icmp eq i32 %n, 0
br i1 %cmp6.not, label %for.cond.cleanup, label %for.body.preheader
for.body.preheader: ; preds = %entry
%wide.trip.count = zext i32 %n to i64
%min.iters.check = icmp ult i32 %n, 16
br i1 %min.iters.check, label %for.body.preheader14, label %vector.ph
vector.ph: ; preds = %for.body.preheader
%n.vec = and i64 %wide.trip.count, 4294967280
%broadcast.splatinsert = insertelement <8 x half> poison, half %B, i64 0
%broadcast.splat = shufflevector <8 x half> %broadcast.splatinsert, <8 x half> poison, <8 x i32> zeroinitializer
%broadcast.splatinsert10 = insertelement <8 x half> poison, half %B, i64 0
%broadcast.splat11 = shufflevector <8 x half> %broadcast.splatinsert10, <8 x half> poison, <8 x i32> zeroinitializer
br label %vector.body
vector.body: ; preds = %vector.body, %vector.ph
%index = phi i64 [ 0, %vector.ph ], [ %index.next, %vector.body ]
%0 = getelementptr inbounds half, ptr %A, i64 %index
%wide.load = load <8 x half>, ptr %0, align 2
%1 = getelementptr inbounds half, ptr %0, i64 8
%wide.load9 = load <8 x half>, ptr %1, align 2
%2 = fmul fast <8 x half> %wide.load, %broadcast.splat
%3 = fmul fast <8 x half> %wide.load9, %broadcast.splat11
%4 = getelementptr inbounds half, ptr %C, i64 %index
%wide.load12 = load <8 x half>, ptr %4, align 2
%5 = getelementptr inbounds half, ptr %4, i64 8
%wide.load13 = load <8 x half>, ptr %5, align 2
%6 = fadd fast <8 x half> %wide.load12, %2
%7 = fadd fast <8 x half> %wide.load13, %3
store <8 x half> %6, ptr %4, align 2
store <8 x half> %7, ptr %5, align 2
%index.next = add nuw i64 %index, 16
%8 = icmp eq i64 %index.next, %n.vec
br i1 %8, label %middle.block, label %vector.body
middle.block: ; preds = %vector.body
%cmp.n = icmp eq i64 %n.vec, %wide.trip.count
br i1 %cmp.n, label %for.cond.cleanup, label %for.body.preheader14
for.body.preheader14: ; preds = %for.body.preheader, %middle.block
%indvars.iv.ph = phi i64 [ 0, %for.body.preheader ], [ %n.vec, %middle.block ]
br label %for.body
for.cond.cleanup: ; preds = %for.body, %middle.block, %entry
ret void
for.body: ; preds = %for.body.preheader14, %for.body
%indvars.iv = phi i64 [ %indvars.iv.next, %for.body ], [ %indvars.iv.ph, %for.body.preheader14 ]
%arrayidx = getelementptr inbounds half, ptr %A, i64 %indvars.iv
%9 = load half, ptr %arrayidx, align 2
%mul = fmul fast half %9, %B
%arrayidx2 = getelementptr inbounds half, ptr %C, i64 %indvars.iv
%10 = load half, ptr %arrayidx2, align 2
%add = fadd fast half %10, %mul
store half %add, ptr %arrayidx2, align 2
%indvars.iv.next = add nuw nsw i64 %indvars.iv, 1
%exitcond.not = icmp eq i64 %indvars.iv.next, %wide.trip.count
br i1 %exitcond.not, label %for.cond.cleanup, label %for.body
}
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