109 lines
4.5 KiB
LLVM
109 lines
4.5 KiB
LLVM
; REQUIRES: asserts
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; RUN: opt -passes=loop-vectorize -force-vector-width=4 -force-vector-interleave=1 -debug-only=loop-vectorize -disable-output -S %s 2>&1 | FileCheck %s
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define void @test_chained_first_order_recurrences_1(ptr %ptr) {
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; CHECK-LABEL: 'test_chained_first_order_recurrences_1'
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; CHECK: VPlan 'Initial VPlan for VF={4},UF>=1' {
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; CHECK-NEXT: Live-in vp<[[VTC:%.+]]> = vector-trip-count
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; CHECK-EMPTY:
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; CHECK-NEXT: vector.ph:
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; CHECK-NEXT: Successor(s): vector loop
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; CHECK-EMPTY:
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; CHECK-NEXT: <x1> vector loop: {
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; CHECK-NEXT: vector.body:
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; CHECK-NEXT: EMIT vp<[[CAN_IV:%.+]]> = CANONICAL-INDUCTION
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; CHECK-NEXT: FIRST-ORDER-RECURRENCE-PHI ir<%for.1> = phi ir<22>, ir<%for.1.next>
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; CHECK-NEXT: FIRST-ORDER-RECURRENCE-PHI ir<%for.2> = phi ir<33>, vp<[[FOR1_SPLICE:%.+]]>
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; CHECK-NEXT: vp<[[STEPS:%.+]]> = SCALAR-STEPS vp<[[CAN_IV]]>, ir<1>
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; CHECK-NEXT: CLONE ir<%gep.ptr> = getelementptr ir<%ptr>, vp<[[STEPS]]>
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; CHECK-NEXT: WIDEN ir<%for.1.next> = load ir<%gep.ptr>
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; CHECK-NEXT: EMIT vp<[[FOR1_SPLICE]]> = first-order splice ir<%for.1> ir<%for.1.next>
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; CHECK-NEXT: EMIT vp<[[FOR2_SPLICE:%.+]]> = first-order splice ir<%for.2> vp<[[FOR1_SPLICE]]>
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; CHECK-NEXT: WIDEN ir<%add> = add vp<[[FOR1_SPLICE]]>, vp<[[FOR2_SPLICE]]>
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; CHECK-NEXT: WIDEN store ir<%gep.ptr>, ir<%add>
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; CHECK-NEXT: EMIT vp<[[CAN_IV_NEXT:%.+]]> = VF * UF +(nuw) vp<[[CAN_IV]]>
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; CHECK-NEXT: EMIT branch-on-count vp<[[CAN_IV_NEXT]]> vp<[[VTC]]>
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; CHECK-NEXT: No successors
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; CHECK-NEXT: }
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; CHECK-NEXT: Successor(s): middle.block
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; CHECK-EMPTY:
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; CHECK-NEXT: middle.block:
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; CHECK-NEXT: No successors
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; CHECK-NEXT: }
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;
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entry:
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br label %loop
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loop:
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%for.1 = phi i16 [ 22, %entry ], [ %for.1.next, %loop ]
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%for.2 = phi i16 [ 33, %entry ], [ %for.1, %loop ]
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%iv = phi i64 [ 0, %entry ], [ %iv.next, %loop ]
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%iv.next = add nuw nsw i64 %iv, 1
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%gep.ptr = getelementptr inbounds i16, ptr %ptr, i64 %iv
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%for.1.next = load i16, ptr %gep.ptr, align 2
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%add = add i16 %for.1, %for.2
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store i16 %add, ptr %gep.ptr
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%exitcond.not = icmp eq i64 %iv.next, 1000
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br i1 %exitcond.not, label %exit, label %loop
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exit:
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ret void
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}
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define void @test_chained_first_order_recurrences_3(ptr %ptr) {
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; CHECK-LABEL: 'test_chained_first_order_recurrences_3'
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; CHECK: VPlan 'Initial VPlan for VF={4},UF>=1' {
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; CHECK-NEXT: Live-in vp<[[VTC:%.+]]> = vector-trip-count
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; CHECK-EMPTY:
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; CHECK-NEXT: vector.ph:
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; CHECK-NEXT: Successor(s): vector loop
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; CHECK-EMPTY:
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; CHECK-NEXT: <x1> vector loop: {
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; CHECK-NEXT: vector.body:
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; CHECK-NEXT: EMIT vp<[[CAN_IV:%.+]]> = CANONICAL-INDUCTION
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; CHECK-NEXT: FIRST-ORDER-RECURRENCE-PHI ir<%for.1> = phi ir<22>, ir<%for.1.next>
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; CHECK-NEXT: FIRST-ORDER-RECURRENCE-PHI ir<%for.2> = phi ir<33>, vp<[[FOR1_SPLICE:%.+]]>
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; CHECK-NEXT: FIRST-ORDER-RECURRENCE-PHI ir<%for.3> = phi ir<33>, vp<[[FOR2_SPLICE:%.+]]>
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; CHECK-NEXT: vp<[[STEPS:%.+]]> = SCALAR-STEPS vp<[[CAN_IV]]>, ir<1>
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; CHECK-NEXT: CLONE ir<%gep.ptr> = getelementptr ir<%ptr>, vp<[[STEPS]]>
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; CHECK-NEXT: WIDEN ir<%for.1.next> = load ir<%gep.ptr>
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; CHECK-NEXT: EMIT vp<[[FOR1_SPLICE]]> = first-order splice ir<%for.1> ir<%for.1.next>
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; CHECK-NEXT: EMIT vp<[[FOR2_SPLICE]]> = first-order splice ir<%for.2> vp<[[FOR1_SPLICE]]>
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; CHECK-NEXT: EMIT vp<[[FOR3_SPLICE:%.+]]> = first-order splice ir<%for.3> vp<[[FOR2_SPLICE]]>
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; CHECK-NEXT: WIDEN ir<%add.1> = add vp<[[FOR1_SPLICE]]>, vp<[[FOR2_SPLICE]]>
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; CHECK-NEXT: WIDEN ir<%add.2> = add ir<%add.1>, vp<[[FOR3_SPLICE]]>
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; CHECK-NEXT: WIDEN store ir<%gep.ptr>, ir<%add.2>
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; CHECK-NEXT: EMIT vp<[[CAN_IV_NEXT:%.+]]> = VF * UF +(nuw) vp<[[CAN_IV]]>
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; CHECK-NEXT: EMIT branch-on-count vp<[[CAN_IV_NEXT]]> vp<[[VTC]]>
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; CHECK-NEXT: No successors
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; CHECK-NEXT: }
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; CHECK-NEXT: Successor(s): middle.block
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; CHECK-EMPTY:
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; CHECK-NEXT: middle.block:
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; CHECK-NEXT: No successors
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; CHECK-NEXT: }
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; CHECK-NOT: vector.body:
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;
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entry:
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br label %loop
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loop:
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%for.1 = phi i16 [ 22, %entry ], [ %for.1.next, %loop ]
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%for.2 = phi i16 [ 33, %entry ], [ %for.1, %loop ]
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%for.3 = phi i16 [ 33, %entry ], [ %for.2, %loop ]
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%iv = phi i64 [ 0, %entry ], [ %iv.next, %loop ]
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%iv.next = add nuw nsw i64 %iv, 1
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%gep.ptr = getelementptr inbounds i16, ptr %ptr, i64 %iv
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%for.1.next = load i16, ptr %gep.ptr, align 2
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%add.1 = add i16 %for.1, %for.2
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%add.2 = add i16 %add.1, %for.3
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store i16 %add.2, ptr %gep.ptr
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%exitcond.not = icmp eq i64 %iv.next, 1000
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br i1 %exitcond.not, label %exit, label %loop
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exit:
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ret void
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}
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