| ; RUN: opt %loadPolly -polly-print-scops -disable-output < %s | FileCheck %s |
| ; |
| ; float foo(float sum, float A[]) { |
| ; |
| ; for (long i = 0; i < 100; i++) |
| ; sum += A[i]; |
| ; |
| ; return sum; |
| ; } |
| |
| ; Verify that we do not model the read from %sum. Reads that only happen in |
| ; case control flow reaches the PHI node from outside the SCoP are handled |
| ; implicitly during code generation. |
| |
| ; CHECK: Stmt_bb1[i0] -> MemRef_phisum__ph |
| ; CHECK-NOT: Stmt_bb1[i0] -> MemRef_sum[] |
| |
| target datalayout = "e-m:e-i64:64-f80:128-n8:16:32:64-S128" |
| |
| define float @foo(float %sum, ptr %A) { |
| bb: |
| br label %bb1 |
| |
| bb1: |
| %i = phi i64 [ 0, %bb ], [ %i.next, %bb1 ] |
| %phisum = phi float [ %sum, %bb ], [ %tmp5, %bb1 ] |
| %tmp = getelementptr inbounds float, ptr %A, i64 %i |
| %tmp4 = load float, ptr %tmp, align 4 |
| %tmp5 = fadd float %phisum, %tmp4 |
| %i.next = add nuw nsw i64 %i, 1 |
| %exitcond = icmp ne i64 %i, 100 |
| br i1 %exitcond, label %bb1, label %bb7 |
| |
| bb7: |
| ret float %phisum |
| } |
