93c5bae00e
Use the printOperands for printing VPInstruction's operands to be more in line with other recipes and ensure consistent printing after D15719. Also removes some stray spaces in print output.
94 lines
3.3 KiB
LLVM
94 lines
3.3 KiB
LLVM
; REQUIRES: asserts
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; RUN: opt < %s -passes=loop-vectorize,instcombine -force-vector-width=4 -force-vector-interleave=1 -debug-only=loop-vectorize -disable-output -print-after=instcombine 2>&1 | FileCheck %s
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target datalayout = "e-m:e-i64:64-i128:128-n32:64-S128"
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; CHECK-LABEL: more_than_one_use
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;
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; PR30627. Check that a compare instruction with more than one use is not
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; recognized as uniform and is vectorized.
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;
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; CHECK-NOT: Found uniform instruction: %cond = icmp slt i64 %i.next, %n
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; CHECK: vector.body
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; CHECK: %[[I:.+]] = add nuw nsw <4 x i64> %vec.ind, <i64 1, i64 1, i64 1, i64 1>
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; CHECK: icmp slt <4 x i64> %[[I]], %broadcast.splat
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; CHECK: br i1 {{.*}}, label %middle.block, label %vector.body
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;
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define i32 @more_than_one_use(ptr %a, i64 %n) {
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entry:
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br label %for.body
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for.body:
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%i = phi i64 [ %i.next, %for.body ], [ 0, %entry ]
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%r = phi i32 [ %tmp3, %for.body ], [ 0, %entry ]
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%i.next = add nuw nsw i64 %i, 1
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%cond = icmp slt i64 %i.next, %n
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%tmp0 = select i1 %cond, i64 %i.next, i64 0
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%tmp1 = getelementptr inbounds i32, ptr %a, i64 %tmp0
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%tmp2 = load i32, ptr %tmp1, align 8
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%tmp3 = add i32 %r, %tmp2
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br i1 %cond, label %for.body, label %for.end
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for.end:
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%tmp4 = phi i32 [ %tmp3, %for.body ]
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ret i32 %tmp4
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}
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; Check for crash exposed by D76992.
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; CHECK-LABEL: 'test'
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; CHECK: VPlan 'Initial VPlan for VF={4},UF>=1' {
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; CHECK-NEXT: Live-in vp<[[VEC_TC:%.+]]> = vector-trip-count
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; CHECK-NEXT: Live-in vp<[[BTC:%.+]]> = backedge-taken count
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; CHECK-NEXT: Live-in ir<14> = original 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: WIDEN-INDUCTION %iv = phi 0, %iv.next, ir<1>
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; CHECK-NEXT: EMIT vp<[[COND:%.+]]> = icmp ule ir<%iv>, vp<[[BTC]]>
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; CHECK-NEXT: WIDEN ir<%cond0> = icmp ult ir<%iv>, ir<13>
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; CHECK-NEXT: WIDEN-SELECT ir<%s> = select ir<%cond0>, ir<10>, ir<20>
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; CHECK-NEXT: Successor(s): pred.store
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; CHECK-EMPTY:
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; CHECK-NEXT: <xVFxUF> pred.store: {
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; CHECK-NEXT: pred.store.entry:
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; CHECK-NEXT: BRANCH-ON-MASK vp<[[COND]]>
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; CHECK-NEXT: Successor(s): pred.store.if, pred.store.continue
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; CHECK-EMPTY:
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; CHECK-NEXT: pred.store.if:
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; CHECK-NEXT: vp<[[STEPS:%.+]]> = SCALAR-STEPS vp<[[CAN_IV]]>, ir<1>
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; CHECK-NEXT: REPLICATE ir<%gep> = getelementptr inbounds ir<%ptr>, vp<[[STEPS]]>
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; CHECK-NEXT: REPLICATE store ir<%s>, ir<%gep>
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; CHECK-NEXT: Successor(s): pred.store.continue
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; CHECK-EMPTY:
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; CHECK-NEXT: pred.store.continue:
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; CHECK-NEXT: No successors
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; CHECK-NEXT: }
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; CHECK-NEXT: Successor(s): loop.0
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; CHECK-EMPTY:
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; CHECK-NEXT: loop.0:
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; CHECK-NEXT: EMIT vp<[[CAN_IV_NEXT:%.+]]> = VF * UF + 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 successor
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; CHECK-NEXT: }
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define void @test(ptr %ptr) {
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entry:
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br label %loop
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loop: ; preds = %loop, %entry
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%iv = phi i64 [ 0, %entry ], [ %iv.next, %loop ]
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%cond0 = icmp ult i64 %iv, 13
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%s = select i1 %cond0, i32 10, i32 20
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%gep = getelementptr inbounds i32, ptr %ptr, i64 %iv
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store i32 %s, ptr %gep
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%iv.next = add nuw nsw i64 %iv, 1
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%exitcond = icmp eq i64 %iv.next, 14
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br i1 %exitcond, label %exit, label %loop
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exit:
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ret void
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}
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