| ; RUN: opt < %s -analyze -enable-new-pm=0 -delinearize | FileCheck %s |
| ; RUN: opt < %s -passes='print<delinearization>' -disable-output 2>&1 | FileCheck %s |
| ; XFAIL: * |
| ; We do not recognize anymore variable size arrays. |
| |
| ; extern void bar(long n, long m, double A[n][m]); |
| ; |
| ; void foo(long a, long b) { |
| ; for (long n = 1; n < a; ++n) |
| ; for (long m = 1; m < b; ++m) { |
| ; double A[n][m]; |
| ; for (long i = 0; i < n; i++) |
| ; for (long j = 0; j < m; j++) |
| ; A[i][j] = 1.0; |
| ; bar(n, m, A); |
| ; } |
| ; } |
| |
| ; AddRec: {{%vla.us,+,{8,+,8}<%for.cond7.preheader.lr.ph.split.us.us>}<%for.body9.lr.ph.us.us>,+,8}<%for.body9.us.us> |
| ; CHECK: Base offset: %vla.us |
| ; CHECK: ArrayDecl[UnknownSize][{1,+,1}<%for.cond7.preheader.lr.ph.split.us.us>] with elements of sizeof(double) bytes. |
| ; CHECK: ArrayRef[{0,+,1}<nuw><nsw><%for.body9.lr.ph.us.us>][{0,+,1}<nuw><nsw><%for.body9.us.us>] |
| |
| define void @foo(i64 %a, i64 %b) nounwind uwtable { |
| entry: |
| %cmp43 = icmp sgt i64 %a, 1 |
| br i1 %cmp43, label %for.cond1.preheader.lr.ph, label %for.end19 |
| |
| for.cond1.preheader.lr.ph: ; preds = %entry |
| %cmp224 = icmp sgt i64 %b, 1 |
| br label %for.cond1.preheader |
| |
| for.cond1.preheader: ; preds = %for.inc17, %for.cond1.preheader.lr.ph |
| %indvars.iv51 = phi i64 [ 1, %for.cond1.preheader.lr.ph ], [ %indvars.iv.next52, %for.inc17 ] |
| br i1 %cmp224, label %for.cond7.preheader.lr.ph.split.us.us, label %for.inc17 |
| |
| for.end13.us: ; preds = %for.inc11.us.us |
| call void @bar(i64 %indvars.iv51, i64 %indvars.iv48, double* %vla.us) nounwind |
| call void @llvm.stackrestore(i8* %1) |
| %indvars.iv.next49 = add i64 %indvars.iv48, 1 |
| %exitcond54 = icmp eq i64 %indvars.iv.next49, %b |
| br i1 %exitcond54, label %for.inc17, label %for.cond7.preheader.lr.ph.split.us.us |
| |
| for.inc11.us.us: ; preds = %for.body9.us.us |
| %inc12.us.us = add nsw i64 %i.023.us.us, 1 |
| %exitcond53 = icmp eq i64 %inc12.us.us, %indvars.iv51 |
| br i1 %exitcond53, label %for.end13.us, label %for.body9.lr.ph.us.us |
| |
| for.body9.lr.ph.us.us: ; preds = %for.cond7.preheader.lr.ph.split.us.us, %for.inc11.us.us |
| %i.023.us.us = phi i64 [ 0, %for.cond7.preheader.lr.ph.split.us.us ], [ %inc12.us.us, %for.inc11.us.us ] |
| %0 = mul nsw i64 %i.023.us.us, %indvars.iv48 |
| br label %for.body9.us.us |
| |
| for.body9.us.us: ; preds = %for.body9.us.us, %for.body9.lr.ph.us.us |
| %j.021.us.us = phi i64 [ 0, %for.body9.lr.ph.us.us ], [ %inc.us.us, %for.body9.us.us ] |
| %arrayidx.sum.us.us = add i64 %j.021.us.us, %0 |
| %arrayidx10.us.us = getelementptr inbounds double, double* %vla.us, i64 %arrayidx.sum.us.us |
| store double 1.000000e+00, double* %arrayidx10.us.us, align 8 |
| %inc.us.us = add nsw i64 %j.021.us.us, 1 |
| %exitcond50 = icmp eq i64 %inc.us.us, %indvars.iv48 |
| br i1 %exitcond50, label %for.inc11.us.us, label %for.body9.us.us |
| |
| for.cond7.preheader.lr.ph.split.us.us: ; preds = %for.cond1.preheader, %for.end13.us |
| %indvars.iv48 = phi i64 [ %indvars.iv.next49, %for.end13.us ], [ 1, %for.cond1.preheader ] |
| %1 = call i8* @llvm.stacksave() |
| %2 = mul nuw i64 %indvars.iv48, %indvars.iv51 |
| %vla.us = alloca double, i64 %2, align 16 |
| br label %for.body9.lr.ph.us.us |
| |
| for.inc17: ; preds = %for.end13.us, %for.cond1.preheader |
| %indvars.iv.next52 = add i64 %indvars.iv51, 1 |
| %exitcond55 = icmp eq i64 %indvars.iv.next52, %a |
| br i1 %exitcond55, label %for.end19, label %for.cond1.preheader |
| |
| for.end19: ; preds = %for.inc17, %entry |
| ret void |
| } |
| |
| declare i8* @llvm.stacksave() nounwind |
| declare void @bar(i64, i64, double*) |
| declare void @llvm.stackrestore(i8*) nounwind |
