105 lines
4.2 KiB
LLVM
105 lines
4.2 KiB
LLVM
; RUN: opt -passes="loop-vectorize" -mtriple=x86_64-unknown-linux -S -debug %s 2>&1 | FileCheck %s
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; REQUIRES: asserts
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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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target triple = "x86_64-unknown-linux"
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declare double @llvm.pow.f64(double, double)
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; Test case where the memory runtime checks and vector body is more expensive
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; than running the scalar loop.
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define void @test(double* nocapture %A, double* nocapture %B, double* nocapture %C, double* nocapture %D, double* nocapture %E) {
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; CHECK: Calculating cost of runtime checks:
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; CHECK-NEXT: 0 for {{.+}} = getelementptr double, double* %A, i64 16
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; CHECK-NEXT: 0 for {{.+}} = bitcast double*
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; CHECK-NEXT: 0 for {{.+}} = getelementptr double, double* %B, i64 16
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; CHECK-NEXT: 0 for {{.+}} = bitcast double*
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; CHECK-NEXT: 0 for {{.+}} = getelementptr double, double* %E, i64 16
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; CHECK-NEXT: 0 for {{.+}} = bitcast double*
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; CHECK-NEXT: 0 for {{.+}} = getelementptr double, double* %C, i64 16
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; CHECK-NEXT: 0 for {{.+}} = bitcast double*
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; CHECK-NEXT: 0 for {{.+}} = getelementptr double, double* %D, i64 16
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; CHECK-NEXT: 0 for {{.+}} = bitcast double*
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; CHECK-NEXT: 1 for {{.+}} = icmp ult i8*
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; CHECK-NEXT: 1 for {{.+}} = icmp ult i8*
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; CHECK-NEXT: 1 for {{.+}} = and i1
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; CHECK-NEXT: 1 for {{.+}} = icmp ult i8*
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; CHECK-NEXT: 1 for {{.+}} = icmp ult i8*
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; CHECK-NEXT: 1 for {{.+}} = and i1
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; CHECK-NEXT: 1 for {{.+}} = or i1
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; CHECK-NEXT: 1 for {{.+}} = icmp ult i8*
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; CHECK-NEXT: 1 for {{.+}} = icmp ult i8*
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; CHECK-NEXT: 1 for {{.+}} = and i1
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; CHECK-NEXT: 1 for {{.+}} = or i1
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; CHECK-NEXT: 1 for {{.+}} = icmp ult i8*
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; CHECK-NEXT: 1 for {{.+}} = icmp ult i8*
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; CHECK-NEXT: 1 for {{.+}} = and i1
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; CHECK-NEXT: 1 for {{.+}} = or i1
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; CHECK-NEXT: 1 for {{.+}} = icmp ult i8*
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; CHECK-NEXT: 1 for {{.+}} = icmp ult i8*
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; CHECK-NEXT: 1 for {{.+}} = and i1
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; CHECK-NEXT: 1 for {{.+}} = or i1
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; CHECK-NEXT: 1 for {{.+}} = icmp ult i8*
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; CHECK-NEXT: 1 for {{.+}} = icmp ult i8*
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; CHECK-NEXT: 1 for {{.+}} = and i1
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; CHECK-NEXT: 1 for {{.+}} = or i1
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; CHECK-NEXT: 1 for {{.+}} = icmp ult i8*
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; CHECK-NEXT: 1 for {{.+}} = icmp ult i8*
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; CHECK-NEXT: 1 for {{.+}} = and i1
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; CHECK-NEXT: 1 for {{.+}} = or i1
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; CHECK-NEXT: 1 for {{.+}} = icmp ult i8*
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; CHECK-NEXT: 1 for {{.+}} = icmp ult i8*
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; CHECK-NEXT: 1 for {{.+}} = and i1
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; CHECK-NEXT: 1 for {{.+}} = or i1
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; CHECK-NEXT: 1 for {{.+}} = icmp ult i8*
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; CHECK-NEXT: 1 for {{.+}} = icmp ult i8*
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; CHECK-NEXT: 1 for {{.+}} = and i1
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; CHECK-NEXT: 1 for {{.+}} = or i1
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; CHECK-NEXT: Total cost of runtime checks: 35
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; CHECK: LV: Vectorization is not beneficial: expected trip count < minimum profitable VF (16 < 24)
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;
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; CHECK-LABEL: @test(
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; CHECK-NEXT: entry:
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; CHECK-NEXT: br label %for.body
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; CHECK-NOT: vector.memcheck
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; CHECK-NOT: vector.body
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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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%iv = phi i64 [ 0, %entry ], [ %iv.next, %for.body ]
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%gep.A = getelementptr inbounds double, double* %A, i64 %iv
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%l.A = load double, double* %gep.A, align 4
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store double 0.0, double* %gep.A, align 4
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%p.1 = call double @llvm.pow.f64(double %l.A, double 2.0)
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%gep.B = getelementptr inbounds double, double* %B, i64 %iv
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%l.B = load double, double* %gep.B, align 4
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%p.2 = call double @llvm.pow.f64(double %l.B, double %p.1)
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store double 0.0, double* %gep.B, align 4
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%gep.C = getelementptr inbounds double, double* %C, i64 %iv
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%l.C = load double, double* %gep.C, align 4
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%p.3 = call double @llvm.pow.f64(double %p.1, double %l.C)
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%gep.D = getelementptr inbounds double, double* %D, i64 %iv
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%l.D = load double, double* %gep.D
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%p.4 = call double @llvm.pow.f64(double %p.3, double %l.D)
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%p.5 = call double @llvm.pow.f64(double %p.4, double %p.3)
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%mul = fmul double 2.0, %p.5
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%mul.2 = fmul double %mul, 2.0
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%mul.3 = fmul double %mul, %mul.2
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%gep.E = getelementptr inbounds double, double* %E, i64 %iv
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store double %mul.3, double* %gep.E, align 4
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%iv.next = add i64 %iv, 1
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%exitcond = icmp eq i64 %iv.next, 16
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br i1 %exitcond, 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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