| ; RUN: opt %loadPolly -polly-scops -analyze < %s | FileCheck %s |
| |
| ; void f(int a[], int N, unsigned P) { |
| ; int i; |
| ; for (i = 0; i < N; ++i) |
| ; if (P > 42) |
| ; a[i] = i; |
| ; } |
| |
| ; The assumed context is the universe because the "signed-unsigned assumption" |
| ; [P, N] -> { : N > 0 and P >= 0 } |
| ; is implied by the execution domain. Thus if something is executed this |
| ; assumption will hold. |
| |
| ; CHECK: Assumed Context: |
| ; CHECK-NEXT: [P, N] -> { : } |
| ; |
| ; CHECK: Domain := |
| ; CHECK-NEXT: [P, N] -> { Stmt_store[i0] : P >= 42 and 0 <= i0 < N }; |
| |
| 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" |
| |
| define void @f(i64* nocapture %a, i64 %N, i64 %P) nounwind { |
| entry: |
| br label %bb |
| |
| bb: |
| %i = phi i64 [ 0, %entry ], [ %i.inc, %bb.backedge ] |
| %brcond = icmp uge i64 %P, 42 |
| br i1 %brcond, label %store, label %bb.backedge |
| |
| store: |
| %scevgep = getelementptr inbounds i64, i64* %a, i64 %i |
| store i64 %i, i64* %scevgep |
| br label %bb.backedge |
| |
| bb.backedge: |
| %i.inc = add nsw i64 %i, 1 |
| %exitcond = icmp eq i64 %i.inc, %N |
| br i1 %exitcond, label %return, label %bb |
| |
| return: |
| ret void |
| } |
