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; RUN: opt < %s -basicaa -slp-vectorizer -dce -S -mtriple=i386-apple-macosx10.8.0 -mcpu=corei7-avx | FileCheck %s
target datalayout = "e-p:32:32:32-i1:8:8-i8:8:8-i16:16:16-i32:32:32-i64:32:64-f32:32:32-f64:32:64-v64:64:64-v128:128:128-a0:0:64-f80:128:128-n8:16:32-S128"
target triple = "i386-apple-macosx10.8.0"
; int foo(double *A, int n, int m) {
; double sum = 0, v1 = 2, v0 = 3;
; for (int i=0; i < n; ++i)
; sum += 7*A[i*2] + 7*A[i*2+1];
; return sum;
; }
;CHECK: reduce
;CHECK: load <2 x double>
;CHECK: fmul <2 x double>
;CHECK: ret
define i32 @reduce(double* nocapture %A, i32 %n, i32 %m) {
entry:
%cmp13 = icmp sgt i32 %n, 0
br i1 %cmp13, label %for.body, label %for.end
for.body: ; preds = %entry, %for.body
%i.015 = phi i32 [ %inc, %for.body ], [ 0, %entry ]
%sum.014 = phi double [ %add6, %for.body ], [ 0.000000e+00, %entry ]
%mul = shl nsw i32 %i.015, 1
%arrayidx = getelementptr inbounds double, double* %A, i32 %mul
%0 = load double, double* %arrayidx, align 4
%mul1 = fmul double %0, 7.000000e+00
%add12 = or i32 %mul, 1
%arrayidx3 = getelementptr inbounds double, double* %A, i32 %add12
%1 = load double, double* %arrayidx3, align 4
%mul4 = fmul double %1, 7.000000e+00
%add5 = fadd double %mul1, %mul4
%add6 = fadd double %sum.014, %add5
%inc = add nsw i32 %i.015, 1
%exitcond = icmp eq i32 %inc, %n
br i1 %exitcond, label %for.cond.for.end_crit_edge, label %for.body
for.cond.for.end_crit_edge: ; preds = %for.body
%phitmp = fptosi double %add6 to i32
br label %for.end
for.end: ; preds = %for.cond.for.end_crit_edge, %entry
%sum.0.lcssa = phi i32 [ %phitmp, %for.cond.for.end_crit_edge ], [ 0, %entry ]
ret i32 %sum.0.lcssa
}
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