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; NOTE: Assertions have been autogenerated by utils/update_analyze_test_checks.py UTC_ARGS: --version 6
; RUN: opt -passes=loop-vectorize -S -force-vector-width=4 -enable-interleaved-mem-accesses=true -debug-only=loop-vectorize --disable-output < %s 2>&1 | FileCheck %s
; This test checks if an unused interleave group is removed by removeDeadRecipes.
%struct.foo = type { ptr, ptr }
define void @test_unused_interleave(ptr %src, i32 %length) {
; CHECK-LABEL: 'test_unused_interleave'
; CHECK: VPlan 'Initial VPlan for VF={4},UF>=1' {
; CHECK-NEXT: Live-in vp<[[VP0:%[0-9]+]]> = VF * UF
; CHECK-NEXT: Live-in vp<[[VP1:%[0-9]+]]> = vector-trip-count
; CHECK-NEXT: Live-in ir<%length> = original trip-count
; CHECK-EMPTY:
; CHECK-NEXT: ir-bb<entry>:
; CHECK-NEXT: Successor(s): scalar.ph, vector.ph
; CHECK-EMPTY:
; CHECK-NEXT: vector.ph:
; CHECK-NEXT: Successor(s): vector loop
; CHECK-EMPTY:
; CHECK-NEXT: <x1> vector loop: {
; CHECK-NEXT: vector.body:
; CHECK-NEXT: EMIT vp<[[VP2:%[0-9]+]]> = CANONICAL-INDUCTION ir<0>, vp<%index.next>
; CHECK-NEXT: EMIT vp<%index.next> = add nuw vp<[[VP2]]>, vp<[[VP0]]>
; CHECK-NEXT: EMIT branch-on-count vp<%index.next>, vp<[[VP1]]>
; CHECK-NEXT: No successors
; CHECK-NEXT: }
; CHECK-NEXT: Successor(s): middle.block
; CHECK-EMPTY:
; CHECK-NEXT: middle.block:
; CHECK-NEXT: EMIT vp<%cmp.n> = icmp eq ir<%length>, vp<[[VP1]]>
; CHECK-NEXT: EMIT branch-on-cond vp<%cmp.n>
; CHECK-NEXT: Successor(s): ir-bb<for.end>, scalar.ph
; CHECK-EMPTY:
; CHECK-NEXT: ir-bb<for.end>:
; CHECK-NEXT: No successors
; CHECK-EMPTY:
; CHECK-NEXT: scalar.ph:
; CHECK-NEXT: EMIT-SCALAR vp<%bc.resume.val> = phi [ vp<[[VP1]]>, middle.block ], [ ir<0>, ir-bb<entry> ]
; CHECK-NEXT: Successor(s): ir-bb<for.body>
; CHECK-EMPTY:
; CHECK-NEXT: ir-bb<for.body>:
; CHECK-NEXT: IR %iv = phi i32 [ %iv.next, %for.body ], [ 0, %entry ] (extra operand: vp<%bc.resume.val> from scalar.ph)
; CHECK-NEXT: IR %next19.i.i = getelementptr inbounds %struct.foo, ptr %src, i32 %iv, i32 0
; CHECK-NEXT: IR %load_p1 = load ptr, ptr %next19.i.i, align 4
; CHECK-NEXT: IR %arrayidx15.i.i1427 = getelementptr inbounds %struct.foo, ptr %src, i32 %iv
; CHECK-NEXT: IR %val.i.i = getelementptr inbounds %struct.foo, ptr %arrayidx15.i.i1427, i32 0, i32 1
; CHECK-NEXT: IR %load_p2 = load ptr, ptr %val.i.i, align 4
; CHECK-NEXT: IR %iv.next = add nuw nsw i32 %iv, 1
; CHECK-NEXT: IR %cond = icmp eq i32 %iv.next, %length
; CHECK-NEXT: No successors
; CHECK-NEXT: }
;
entry:
br label %for.body
for.body:
%iv = phi i32 [ %iv.next, %for.body ], [ 0, %entry ]
%next19.i.i = getelementptr inbounds %struct.foo, ptr %src, i32 %iv, i32 0
%load_p1 = load ptr, ptr %next19.i.i, align 4
%arrayidx15.i.i1427 = getelementptr inbounds %struct.foo, ptr %src, i32 %iv
%val.i.i = getelementptr inbounds %struct.foo, ptr %arrayidx15.i.i1427, i32 0, i32 1
%load_p2 = load ptr, ptr %val.i.i, align 4
%iv.next = add nuw nsw i32 %iv, 1
%cond = icmp eq i32 %iv.next, %length
br i1 %cond, label %for.end, label %for.body
for.end:
ret void
}
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