forked from OSchip/llvm-project
79 lines
2.5 KiB
LLVM
79 lines
2.5 KiB
LLVM
; REQUIRES: asserts
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; RUN: opt -loop-vectorize -force-vector-interleave=2 -force-vector-width=1 -debug -disable-output %s 2>&1 | FileCheck %s
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target datalayout = "e-p:64:64:64-i1:8:8-i8:8:8-i16:16:16-i32:32:32-i64:64:64-f32:32:32-f64:64:64-v64:64:64-v128:128:128-a0:0:64-s0:64:64-f80:128:128-n8:16:32:64-S128"
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; Make sure recipes with side-effects are not sunk.
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define void @sink_with_sideeffects(i1 %c, i8* %ptr) {
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; CHECK-LABEL: sink_with_sideeffects
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; CHECK: VPlan 'Initial VPlan for VF={1},UF>=1' {
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; CHECK-NEXT: Live-in vp<[[VEC_TC:%.+]]> = vector-trip-count
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; CHECK-EMPTY:
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; CHECK-NEXT: <x1> vector loop: {
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; CHECK-NEXT: for.body:
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; CHECK-NEXT: EMIT vp<[[CAN_IV:%.+]]> = CANONICAL-INDUCTION
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; CHECK-NEXT: WIDEN-INDUCTION %tmp0 = phi %tmp6, 0
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; CHECK-NEXT: WIDEN-INDUCTION %tmp1 = phi %tmp7, 0
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; CHECK-NEXT: CLONE ir<%tmp2> = getelementptr ir<%ptr>, ir<%tmp0>
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; CHECK-NEXT: CLONE ir<%tmp3> = load ir<%tmp2>
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; CHECK-NEXT: CLONE store ir<0>, ir<%tmp2>
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; CHECK-NEXT: CLONE ir<%tmp4> = zext ir<%tmp3>
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; CHECK-NEXT: CLONE ir<%tmp5> = trunc ir<%tmp4>
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; CHECK-NEXT: Successor(s): if.then
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; CHECK: if.then:
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; CHECK-NEXT: Successor(s): pred.store
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; CHECK: <xVFxUF> pred.store: {
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; CHECK-NEXT: pred.store.entry:
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; CHECK-NEXT: BRANCH-ON-MASK ir<%c>
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; CHECK-NEXT: Successor(s): pred.store.if, pred.store.continue
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; CHECK-NEXT: CondBit: ir<%c>
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; CHECK: pred.store.if:
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; CHECK-NEXT: CLONE store ir<%tmp5>, ir<%tmp2>
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; CHECK-NEXT: Successor(s): pred.store.continue
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; CHECK: pred.store.continue:
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; CHECK-NEXT: No successors
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; CHECK-NEXT: }
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; CHECK: if.then.0:
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; CHECK-NEXT: Successor(s): for.inc
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; CHECK: for.inc:
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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<[[VEC_TC]]>
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; CHECK-NEXT: No successors
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; CHECK-NEXT: }
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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 %for.body
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for.body:
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%tmp0 = phi i64 [ %tmp6, %for.inc ], [ 0, %entry ]
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%tmp1 = phi i64 [ %tmp7, %for.inc ], [ 0, %entry ]
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%tmp2 = getelementptr i8, i8* %ptr, i64 %tmp0
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%tmp3 = load i8, i8* %tmp2, align 1
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store i8 0, i8* %tmp2
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%tmp4 = zext i8 %tmp3 to i32
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%tmp5 = trunc i32 %tmp4 to i8
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br i1 %c, label %if.then, label %for.inc
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if.then:
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store i8 %tmp5, i8* %tmp2, align 1
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br label %for.inc
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for.inc:
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%tmp6 = add nuw nsw i64 %tmp0, 1
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%tmp7 = add i64 %tmp1, -1
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%tmp8 = icmp eq i64 %tmp7, 0
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br i1 %tmp8, label %for.end, label %for.body
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for.end:
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ret void
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}
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