| ; RUN: opt %loadPolly -polly-print-scops -polly-detect-keep-going -polly-allow-nonaffine -disable-output < %s | FileCheck %s |
| ; |
| ; The instruction |
| ; |
| ; %idxprom = sext i32 %call to i64 |
| ; |
| ; uses an argument that is inside and error block. Since error blocks are |
| ; removed from the SCoP, the argument is not available. Polly currently |
| ; does not consider that %idxprom itself is an error block as well. |
| ; |
| ; This also tests that -polly-detect-keep-going still correctly rejects this SCoP. |
| ; https://llvm.org/PR58484 |
| ; |
| ; CHECK: Printing analysis 'Polly - Create polyhedral description of Scops' for region: 'for.cond => for.end' in function 'g': |
| ; CHECK-NEXT: Invalid Scop! |
| ; |
| ; int f(); |
| ; void g(int *A, int N) { |
| ; for (int i = 0; i < N; i++) { |
| ; if (i > 512) { |
| ; int v = f(); |
| ; S: |
| ; A[v]++; |
| ; } |
| ; A[i]++; |
| ; } |
| ; } |
| ; |
| target datalayout = "e-m:e-i64:64-f80:128-n8:16:32:64-S128" |
| |
| define void @g(ptr %A, i32 %N) { |
| entry: |
| %tmp = sext i32 %N to i64 |
| br label %for.cond |
| |
| for.cond: ; preds = %for.inc, %entry |
| %indvars.iv = phi i64 [ %indvars.iv.next, %for.inc ], [ 0, %entry ] |
| %cmp = icmp slt i64 %indvars.iv, %tmp |
| br i1 %cmp, label %for.body, label %for.end |
| |
| for.body: ; preds = %for.cond |
| %cmp1 = icmp sgt i64 %indvars.iv, 512 |
| br i1 %cmp1, label %if.then, label %if.end3 |
| |
| if.then: ; preds = %for.body |
| %call = call i32 (...) @f() |
| br label %S |
| |
| S: ; preds = %if.then |
| %idxprom = sext i32 %call to i64 |
| %arrayidx = getelementptr inbounds i32, ptr %A, i64 %idxprom |
| %tmp1 = load i32, ptr %arrayidx, align 4 |
| %inc = add nsw i32 %tmp1, 1 |
| store i32 %inc, ptr %arrayidx, align 4 |
| br label %if.end3 |
| |
| if.end3: ; preds = %if.end, %for.body |
| %arrayidx5 = getelementptr inbounds i32, ptr %A, i64 %indvars.iv |
| %tmp2 = load i32, ptr %arrayidx5, align 4 |
| %inc6 = add nsw i32 %tmp2, 1 |
| store i32 %inc6, ptr %arrayidx5, align 4 |
| br label %for.inc |
| |
| for.inc: ; preds = %if.end3, %if.then2 |
| %indvars.iv.next = add nuw nsw i64 %indvars.iv, 1 |
| br label %for.cond |
| |
| for.end: ; preds = %for.cond |
| ret void |
| } |
| |
| declare i32 @f(...) |