| Duncan Sands | f8a9eb1 | 2011-10-25 12:28:52 +0000 | [diff] [blame] | 1 | ; RUN: opt < %s -analyze -scalar-evolution | 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 | target triple = "x86_64-unknown-linux-gnu" |
| 5 | |
| 6 | @foo.a = internal constant [8 x i32] [i32 0, i32 1, i32 2, i32 3, i32 4, i32 5, i32 6, i32 7], align 16 |
| 7 | |
| 8 | define i32 @foo() nounwind uwtable noinline { |
| 9 | entry: |
| 10 | br label %for.cond |
| 11 | |
| 12 | for.cond: ; preds = %for.inc, %entry |
| 13 | %sum.0 = phi i32 [ 0, %entry ], [ %add, %for.inc ] |
| 14 | ; CHECK: --> %sum.0 Exits: 28 |
| 15 | %i.0 = phi i32 [ 0, %entry ], [ %inc, %for.inc ] |
| 16 | %cmp = icmp ult i32 %i.0, 8 |
| 17 | br i1 %cmp, label %for.inc, label %for.end |
| 18 | |
| 19 | for.inc: ; preds = %for.cond |
| 20 | %idxprom = sext i32 %i.0 to i64 |
| 21 | %arrayidx = getelementptr inbounds [8 x i32]* @foo.a, i64 0, i64 %idxprom |
| 22 | %0 = load i32* %arrayidx, align 4 |
| 23 | %add = add nsw i32 %sum.0, %0 |
| 24 | %inc = add nsw i32 %i.0, 1 |
| 25 | br label %for.cond |
| 26 | |
| 27 | for.end: ; preds = %for.cond |
| 28 | ret i32 %sum.0 |
| 29 | } |