1; REQUIRES: asserts
2
3; RUN: opt -runtime-memory-check-threshold=9 -passes='loop-vectorize' -mtriple=x86_64-unknown-linux -S -debug %s 2>&1 | FileCheck %s
4
5target 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"
6
7target triple = "x86_64-unknown-linux"
8
9declare double @llvm.pow.f64(double, double)
10
11; Test case where the memory runtime checks and vector body is more expensive
12; than running the scalar loop.
13; TODO: should not be vectorized.
14define void @test(double* nocapture %A, double* nocapture %B, double* nocapture %C, double* nocapture %D, double* nocapture %E) {
15; CHECK-LABEL: @test(
16; CHECK: vector.memcheck
17; CHECK: vector.body
18;
19entry:
20  br label %for.body
21
22for.body:
23  %iv = phi i64 [ 0, %entry ], [ %iv.next, %for.body ]
24  %gep.A = getelementptr inbounds double, double* %A, i64 %iv
25  %l.A = load double, double* %gep.A, align 4
26  store double 0.0, double* %gep.A, align 4
27  %p.1 = call double @llvm.pow.f64(double %l.A, double 2.0)
28
29  %gep.B = getelementptr inbounds double, double* %B, i64 %iv
30  %l.B = load double, double* %gep.B, align 4
31  %p.2 = call double @llvm.pow.f64(double %l.B, double %p.1)
32  store double 0.0, double* %gep.B, align 4
33
34  %gep.C = getelementptr inbounds double, double* %C, i64 %iv
35  %l.C = load double, double* %gep.C, align 4
36  %p.3 = call double @llvm.pow.f64(double %p.1, double %l.C)
37
38  %gep.D = getelementptr inbounds double, double* %D, i64 %iv
39  %l.D = load double, double* %gep.D
40  %p.4 = call double @llvm.pow.f64(double %p.3, double %l.D)
41  %p.5 = call double @llvm.pow.f64(double %p.4, double %p.3)
42  %mul = fmul double 2.0, %p.5
43  %mul.2 = fmul double %mul, 2.0
44  %mul.3 = fmul double %mul, %mul.2
45  %gep.E = getelementptr inbounds double, double* %E, i64 %iv
46  store double %mul.3, double* %gep.E, align 4
47  %iv.next = add i64 %iv, 1
48  %exitcond = icmp eq i64 %iv.next, 16
49  br i1 %exitcond, label %for.end, label %for.body
50
51for.end:
52  ret void
53}
54