| ; RUN: opt -S %loadPolly -basic-aa -polly-dependences-analysis-type=value-based -polly-dce -polly-ast -analyze < %s | FileCheck %s -check-prefix=CHECK-DCE |
| 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" |
| ; A[0] = 1; |
| ; |
| ; for(i = 0; i < 100; i++ ) |
| ; A[i+1] = A[i] * 2; |
| ; |
| ; for (i = 0; i < 200; i++ ) |
| ; A[i] = B[i] * 2; |
| |
| define void @main() nounwind uwtable { |
| |
| entry: |
| %A = alloca [200 x i32], align 16 |
| %B = alloca [200 x i32], align 16 |
| |
| %A.zero = getelementptr [200 x i32], [200 x i32]* %A, i64 0, i64 0 |
| store i32 1, i32* %A.zero, align 4 |
| |
| br label %for.body.1 |
| |
| for.body.1: |
| %indvar.1 = phi i64 [ 0, %entry ], [ %indvar.next.1, %for.body.1 ] |
| %indvar.next.1 = add i64 %indvar.1, 1 |
| |
| %A.current.1 = getelementptr [200 x i32], [200 x i32]* %A, i64 0, i64 %indvar.1 |
| %val1.1 = load i32, i32* %A.current.1, align 4 |
| %val2.1 = mul i32 %val1.1, 2 |
| %A.next.1 = getelementptr [200 x i32], [200 x i32]* %A, i64 0, i64 %indvar.next.1 |
| store i32 %val2.1, i32* %A.next.1, align 4 |
| |
| %exitcond.1 = icmp ne i64 %indvar.next.1, 100 |
| br i1 %exitcond.1, label %for.body.1, label %exit.1 |
| |
| exit.1: |
| br label %for.body.2 |
| |
| for.body.2: |
| %indvar.2 = phi i64 [ 0, %exit.1 ], [ %indvar.next.2, %for.body.2 ] |
| |
| %B.current.2 = getelementptr [200 x i32], [200 x i32]* %B, i64 0, i64 %indvar.2 |
| %val1.2 = load i32, i32* %B.current.2, align 4 |
| %val2.2 = mul i32 %val1.2, 2 |
| %A.current.2 = getelementptr [200 x i32], [200 x i32]* %A, i64 0, i64 %indvar.2 |
| store i32 %val2.2, i32* %A.current.2, align 4 |
| |
| %indvar.next.2 = add i64 %indvar.2, 1 |
| %exitcond.2 = icmp ne i64 %indvar.next.2, 200 |
| br i1 %exitcond.2, label %for.body.2, label %exit.3 |
| |
| exit.3: |
| ret void |
| } |
| |
| ; CHECK-DCE: for (int c0 = 0; c0 <= 199; c0 += 1) |
| ; CHECK-DCE: Stmt_for_body_2(c0); |