| Nadav Rotem | 6d9dafe | 2013-01-05 00:58:48 +0000 | [diff] [blame^] | 1 | ; RUN: opt < %s -loop-vectorize -force-vector-unroll=1 -force-vector-width=4 -instcombine -S | FileCheck %s |
| Nadav Rotem | ff78891 | 2012-10-31 00:45:26 +0000 | [diff] [blame] | 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 | target triple = "x86_64-apple-macosx10.8.0" |
| 5 | |
| 6 | ;CHECK: @start_at_nonzero |
| Nadav Rotem | 4cb8cda | 2012-10-31 21:40:39 +0000 | [diff] [blame] | 7 | ;CHECK: mul nuw <4 x i32> |
| Nadav Rotem | ff78891 | 2012-10-31 00:45:26 +0000 | [diff] [blame] | 8 | ;CHECK: ret i32 |
| 9 | define i32 @start_at_nonzero(i32* nocapture %a, i32 %start, i32 %end) nounwind uwtable ssp { |
| 10 | entry: |
| 11 | %cmp3 = icmp slt i32 %start, %end |
| 12 | br i1 %cmp3, label %for.body.lr.ph, label %for.end |
| 13 | |
| 14 | for.body.lr.ph: ; preds = %entry |
| 15 | %0 = sext i32 %start to i64 |
| 16 | br label %for.body |
| 17 | |
| 18 | for.body: ; preds = %for.body.lr.ph, %for.body |
| 19 | %indvars.iv = phi i64 [ %0, %for.body.lr.ph ], [ %indvars.iv.next, %for.body ] |
| 20 | %arrayidx = getelementptr inbounds i32* %a, i64 %indvars.iv |
| 21 | %1 = load i32* %arrayidx, align 4, !tbaa !0 |
| Nadav Rotem | 4cb8cda | 2012-10-31 21:40:39 +0000 | [diff] [blame] | 22 | %mul = mul nuw i32 %1, 333 |
| Nadav Rotem | ff78891 | 2012-10-31 00:45:26 +0000 | [diff] [blame] | 23 | store i32 %mul, i32* %arrayidx, align 4, !tbaa !0 |
| 24 | %indvars.iv.next = add i64 %indvars.iv, 1 |
| 25 | %2 = trunc i64 %indvars.iv.next to i32 |
| 26 | %cmp = icmp slt i32 %2, %end |
| 27 | br i1 %cmp, label %for.body, label %for.end |
| 28 | |
| 29 | for.end: ; preds = %for.body, %entry |
| 30 | ret i32 4 |
| 31 | } |
| 32 | |
| 33 | !0 = metadata !{metadata !"int", metadata !1} |
| 34 | !1 = metadata !{metadata !"omnipotent char", metadata !2} |
| 35 | !2 = metadata !{metadata !"Simple C/C++ TBAA"} |