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; RUN: opt < %s -basicaa -slp-vectorizer -S | FileCheck %s
target datalayout = "e-m:e-p:32:32-f64:32:64-f80:32-n8:16:32-S128"
target triple = "x86_64--linux-gnu"
@a = common global [4 x double] zeroinitializer, align 8
@b = common global [4 x double] zeroinitializer, align 8
; [4], b[4];
; double foo() {
; double sum =0;
; sum = (a[0]+b[0]) + (a[1]+b[1]);
; return sum;
; }
; CHECK-LABEL: @return1
; CHECK: %0 = load <2 x double>*
; CHECK: %1 = load <2 x double>*
; CHECK: %2 = fadd <2 x double>
define double @return1() {
entry:
%a0 = load double* getelementptr inbounds ([4 x double]* @a, i32 0, i32 0), align 8
%b0 = load double* getelementptr inbounds ([4 x double]* @b, i32 0, i32 0), align 8
%add0 = fadd double %a0, %b0
%a1 = load double* getelementptr inbounds ([4 x double]* @a, i32 0, i32 1), align 8
%b1 = load double* getelementptr inbounds ([4 x double]* @b, i32 0, i32 1), align 8
%add1 = fadd double %a1, %b1
%add2 = fadd double %add0, %add1
ret double %add2
}
; double hadd(double *x) {
; return ((x[0] + x[2]) + (x[1] + x[3]));
; }
; CHECK-LABEL: @return2
; CHECK: %1 = load <2 x double>*
; CHECK: %3 = load <2 x double>* %2
; CHECK: %4 = fadd <2 x double> %1, %3
define double @return2(double* nocapture readonly %x) {
entry:
%x0 = load double* %x, align 4
%arrayidx1 = getelementptr inbounds double* %x, i32 2
%x2 = load double* %arrayidx1, align 4
%add3 = fadd double %x0, %x2
%arrayidx2 = getelementptr inbounds double* %x, i32 1
%x1 = load double* %arrayidx2, align 4
%arrayidx3 = getelementptr inbounds double* %x, i32 3
%x3 = load double* %arrayidx3, align 4
%add4 = fadd double %x1, %x3
%add5 = fadd double %add3, %add4
ret double %add5
}
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