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; REQUIRES: asserts
; RUN: opt -runtime-memory-check-threshold=9 -passes='loop-vectorize' -mtriple=x86_64-unknown-linux -S -debug %s 2>&1 | FileCheck %s
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"
target triple = "x86_64-unknown-linux"
declare double @llvm.pow.f64(double, double)
; Test case where the memory runtime checks and vector body is more expensive
; than running the scalar loop.
; TODO: should not be vectorized.
define void @test(double* nocapture %A, double* nocapture %B, double* nocapture %C, double* nocapture %D, double* nocapture %E) {
; CHECK-LABEL: @test(
; CHECK: vector.memcheck
; CHECK: vector.body
;
entry:
br label %for.body
for.body:
%iv = phi i64 [ 0, %entry ], [ %iv.next, %for.body ]
%gep.A = getelementptr inbounds double, double* %A, i64 %iv
%l.A = load double, double* %gep.A, align 4
store double 0.0, double* %gep.A, align 4
%p.1 = call double @llvm.pow.f64(double %l.A, double 2.0)
%gep.B = getelementptr inbounds double, double* %B, i64 %iv
%l.B = load double, double* %gep.B, align 4
%p.2 = call double @llvm.pow.f64(double %l.B, double %p.1)
store double 0.0, double* %gep.B, align 4
%gep.C = getelementptr inbounds double, double* %C, i64 %iv
%l.C = load double, double* %gep.C, align 4
%p.3 = call double @llvm.pow.f64(double %p.1, double %l.C)
%gep.D = getelementptr inbounds double, double* %D, i64 %iv
%l.D = load double, double* %gep.D
%p.4 = call double @llvm.pow.f64(double %p.3, double %l.D)
%p.5 = call double @llvm.pow.f64(double %p.4, double %p.3)
%mul = fmul double 2.0, %p.5
%mul.2 = fmul double %mul, 2.0
%mul.3 = fmul double %mul, %mul.2
%gep.E = getelementptr inbounds double, double* %E, i64 %iv
store double %mul.3, double* %gep.E, align 4
%iv.next = add i64 %iv, 1
%exitcond = icmp eq i64 %iv.next, 16
br i1 %exitcond, label %for.end, label %for.body
for.end:
ret void
}
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