1 ; RUN: opt < %s -loop-vectorize -force-vector-interleave=1 -force-vector-width=4 -S | FileCheck %s
3 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"
5 ; This test checks that we deal with an in-loop extractelement (for now, this
6 ; means not crashing by not vectorizing).
7 ; CHECK-LABEL: @_Z4foo1Pii(
10 define i32 @_Z4foo1Pii(i32* %A, i32 %n, <2 x i32> %q) #0 {
12 %idx.ext = sext i32 %n to i64
13 %add.ptr = getelementptr inbounds i32, i32* %A, i64 %idx.ext
14 %cmp3.i = icmp eq i32 %n, 0
15 br i1 %cmp3.i, label %_ZSt10accumulateIPiiET0_T_S2_S1_.exit, label %for.body.i
17 for.body.i: ; preds = %entry, %for.body.i
18 %__init.addr.05.i = phi i32 [ %add.i, %for.body.i ], [ 0, %entry ]
19 %__first.addr.04.i = phi i32* [ %incdec.ptr.i, %for.body.i ], [ %A, %entry ]
20 %0 = load i32, i32* %__first.addr.04.i, align 4
21 %q1 = extractelement <2 x i32> %q, i32 %n
22 %q2 = add nsw i32 %0, %q1
23 %add.i = add nsw i32 %q2, %__init.addr.05.i
24 %incdec.ptr.i = getelementptr inbounds i32, i32* %__first.addr.04.i, i64 1
25 %cmp.i = icmp eq i32* %incdec.ptr.i, %add.ptr
26 br i1 %cmp.i, label %_ZSt10accumulateIPiiET0_T_S2_S1_.exit, label %for.body.i
28 _ZSt10accumulateIPiiET0_T_S2_S1_.exit: ; preds = %for.body.i, %entry
29 %__init.addr.0.lcssa.i = phi i32 [ 0, %entry ], [ %add.i, %for.body.i ]
30 ret i32 %__init.addr.0.lcssa.i
33 attributes #0 = { nounwind readonly ssp uwtable }