| Chris Lattner | 50fb469 | 2010-09-06 01:10:22 +0000 | [diff] [blame] | 1 | ; RUN: opt -S -loop-rotate %s | FileCheck %s |
| 2 | 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" |
| 3 | target triple = "x86_64-apple-darwin10.0.0" |
| 4 | |
| 5 | ; PR5319 - The "arrayidx" gep should be hoisted, not duplicated. We should |
| 6 | ; end up with one phi node. |
| 7 | define void @test1() nounwind ssp { |
| 8 | ; CHECK: @test1 |
| 9 | entry: |
| 10 | %array = alloca [20 x i32], align 16 |
| 11 | br label %for.cond |
| 12 | |
| 13 | for.cond: ; preds = %for.body, %entry |
| 14 | %i.0 = phi i32 [ 0, %entry ], [ %inc, %for.body ] |
| 15 | %cmp = icmp slt i32 %i.0, 100 |
| 16 | %arrayidx = getelementptr inbounds [20 x i32]* %array, i64 0, i64 0 |
| 17 | br i1 %cmp, label %for.body, label %for.end |
| 18 | |
| 19 | ; CHECK: for.body: |
| 20 | ; CHECK-NEXT: phi i32 [ 0 |
| 21 | ; CHECK-NEXT: store i32 0 |
| 22 | |
| 23 | for.body: ; preds = %for.cond |
| 24 | store i32 0, i32* %arrayidx, align 16 |
| 25 | %inc = add nsw i32 %i.0, 1 |
| 26 | br label %for.cond |
| 27 | |
| 28 | for.end: ; preds = %for.cond |
| 29 | %arrayidx.lcssa = phi i32* [ %arrayidx, %for.cond ] |
| 30 | call void @g(i32* %arrayidx.lcssa) nounwind |
| 31 | ret void |
| 32 | } |
| 33 | |
| 34 | declare void @g(i32*) |
| 35 | |