1 ; RUN: opt < %s -loop-vectorize -force-vector-interleave=1 -force-vector-width=4 -dce -instcombine -S | FileCheck %s
3 ; int __attribute__((noinline)) sum_array(int *A, int n) {
4 ; return std::accumulate(A, A + n, 0);
7 target datalayout = "e-p:64:64:64-p1:16:16:16-i1:8:8-i8:8:8-i16:16:16-i32:32:32-i64:64:64-v64:64:64-v128:128:128-a0:0:64-s0:64:64-n8:16:32:64-S128"
9 ;CHECK-LABEL: @sum_array(
12 ;CHECK: load <4 x i32>
13 ;CHECK: add nsw <4 x i32>
15 define i32 @sum_array(i32* %A, i32 %n) nounwind uwtable readonly noinline ssp {
16 %1 = sext i32 %n to i64
17 %2 = getelementptr inbounds i32, i32* %A, i64 %1
18 %3 = icmp eq i32 %n, 0
19 br i1 %3, label %_ZSt10accumulateIPiiET0_T_S2_S1_.exit, label %.lr.ph.i
21 .lr.ph.i: ; preds = %0, %.lr.ph.i
22 %.03.i = phi i32* [ %6, %.lr.ph.i ], [ %A, %0 ]
23 %.012.i = phi i32 [ %5, %.lr.ph.i ], [ 0, %0 ]
24 %4 = load i32, i32* %.03.i, align 4
25 %5 = add nsw i32 %4, %.012.i
26 %6 = getelementptr inbounds i32, i32* %.03.i, i64 1
27 %7 = icmp eq i32* %6, %2
28 br i1 %7, label %_ZSt10accumulateIPiiET0_T_S2_S1_.exit, label %.lr.ph.i
30 _ZSt10accumulateIPiiET0_T_S2_S1_.exit: ; preds = %.lr.ph.i, %0
31 %.01.lcssa.i = phi i32 [ 0, %0 ], [ %5, %.lr.ph.i ]
35 ; Same, but use a pointer with a different size.
36 ;CHECK-LABEL: @sum_array_as1(
39 ;CHECK: load <4 x i32>
40 ;CHECK: add nsw <4 x i32>
42 define i32 @sum_array_as1(i32 addrspace(1)* %A, i32 %n) nounwind uwtable readonly noinline ssp {
43 %1 = sext i32 %n to i64
44 %2 = getelementptr inbounds i32, i32 addrspace(1)* %A, i64 %1
45 %3 = icmp eq i32 %n, 0
46 br i1 %3, label %_ZSt10accumulateIPiiET0_T_S2_S1_.exit, label %.lr.ph.i
48 .lr.ph.i: ; preds = %0, %.lr.ph.i
49 %.03.i = phi i32 addrspace(1)* [ %6, %.lr.ph.i ], [ %A, %0 ]
50 %.012.i = phi i32 [ %5, %.lr.ph.i ], [ 0, %0 ]
51 %4 = load i32, i32 addrspace(1)* %.03.i, align 4
52 %5 = add nsw i32 %4, %.012.i
53 %6 = getelementptr inbounds i32, i32 addrspace(1)* %.03.i, i64 1
54 %7 = icmp eq i32 addrspace(1)* %6, %2
55 br i1 %7, label %_ZSt10accumulateIPiiET0_T_S2_S1_.exit, label %.lr.ph.i
57 _ZSt10accumulateIPiiET0_T_S2_S1_.exit: ; preds = %.lr.ph.i, %0
58 %.01.lcssa.i = phi i32 [ 0, %0 ], [ %5, %.lr.ph.i ]