| Arnold Schwaighofer | 2e7a922 | 2013-05-14 00:21:18 +0000 | [diff] [blame] | 1 | ; RUN: opt < %s -loop-vectorize -force-vector-unroll=1 -force-vector-width=2 -S | FileCheck %s |
| 2 | |
| 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" |
| 4 | |
| 5 | ; Make sure that we can handle multiple integer induction variables. |
| Matt Arsenault | e64c7c7 | 2013-10-02 20:29:00 +0000 | [diff] [blame^] | 6 | ; CHECK-LABEL: @multi_int_induction( |
| Arnold Schwaighofer | 2e7a922 | 2013-05-14 00:21:18 +0000 | [diff] [blame] | 7 | ; CHECK: vector.body: |
| 8 | ; CHECK: %index = phi i64 [ 0, %vector.ph ], [ %index.next, %vector.body ] |
| 9 | ; CHECK: %normalized.idx = sub i64 %index, 0 |
| 10 | ; CHECK: %[[VAR:.*]] = trunc i64 %normalized.idx to i32 |
| 11 | ; CHECK: %offset.idx = add i32 190, %[[VAR]] |
| 12 | define void @multi_int_induction(i32* %A, i32 %N) { |
| 13 | for.body.lr.ph: |
| 14 | br label %for.body |
| 15 | |
| 16 | for.body: |
| 17 | %indvars.iv = phi i64 [ 0, %for.body.lr.ph ], [ %indvars.iv.next, %for.body ] |
| 18 | %count.09 = phi i32 [ 190, %for.body.lr.ph ], [ %inc, %for.body ] |
| 19 | %arrayidx2 = getelementptr inbounds i32* %A, i64 %indvars.iv |
| 20 | store i32 %count.09, i32* %arrayidx2, align 4 |
| 21 | %inc = add nsw i32 %count.09, 1 |
| 22 | %indvars.iv.next = add i64 %indvars.iv, 1 |
| 23 | %lftr.wideiv = trunc i64 %indvars.iv.next to i32 |
| 24 | %exitcond = icmp ne i32 %lftr.wideiv, %N |
| 25 | br i1 %exitcond, label %for.body, label %for.end |
| 26 | |
| 27 | for.end: |
| 28 | ret void |
| 29 | } |
| 30 | |