1 ; RUN: opt < %s -analyze -delinearize | FileCheck %s 2 ; XFAIL: * 3 ; We do not recognize anymore variable size arrays. 4 5 ; extern void bar(long n, long m, double A[n][m]); 6 ; 7 ; void foo(long a, long b) { 8 ; for (long n = 1; n < a; ++n) 9 ; for (long m = 1; m < b; ++m) { 10 ; double A[n][m]; 11 ; for (long i = 0; i < n; i++) 12 ; for (long j = 0; j < m; j++) 13 ; A[i][j] = 1.0; 14 ; bar(n, m, A); 15 ; } 16 ; } 17 18 ; AddRec: {{%vla.us,+,{8,+,8}<%for.cond7.preheader.lr.ph.split.us.us>}<%for.body9.lr.ph.us.us>,+,8}<%for.body9.us.us> 19 ; CHECK: Base offset: %vla.us 20 ; CHECK: ArrayDecl[UnknownSize][{1,+,1}<%for.cond7.preheader.lr.ph.split.us.us>] with elements of sizeof(double) bytes. 21 ; CHECK: ArrayRef[{0,+,1}<nuw><nsw><%for.body9.lr.ph.us.us>][{0,+,1}<nuw><nsw><%for.body9.us.us>] 22 23 define void @foo(i64 %a, i64 %b) nounwind uwtable { 24 entry: 25 %cmp43 = icmp sgt i64 %a, 1 26 br i1 %cmp43, label %for.cond1.preheader.lr.ph, label %for.end19 27 28 for.cond1.preheader.lr.ph: ; preds = %entry 29 %cmp224 = icmp sgt i64 %b, 1 30 br label %for.cond1.preheader 31 32 for.cond1.preheader: ; preds = %for.inc17, %for.cond1.preheader.lr.ph 33 %indvars.iv51 = phi i64 [ 1, %for.cond1.preheader.lr.ph ], [ %indvars.iv.next52, %for.inc17 ] 34 br i1 %cmp224, label %for.cond7.preheader.lr.ph.split.us.us, label %for.inc17 35 36 for.end13.us: ; preds = %for.inc11.us.us 37 call void @bar(i64 %indvars.iv51, i64 %indvars.iv48, double* %vla.us) nounwind 38 call void @llvm.stackrestore(i8* %1) 39 %indvars.iv.next49 = add i64 %indvars.iv48, 1 40 %exitcond54 = icmp eq i64 %indvars.iv.next49, %b 41 br i1 %exitcond54, label %for.inc17, label %for.cond7.preheader.lr.ph.split.us.us 42 43 for.inc11.us.us: ; preds = %for.body9.us.us 44 %inc12.us.us = add nsw i64 %i.023.us.us, 1 45 %exitcond53 = icmp eq i64 %inc12.us.us, %indvars.iv51 46 br i1 %exitcond53, label %for.end13.us, label %for.body9.lr.ph.us.us 47 48 for.body9.lr.ph.us.us: ; preds = %for.cond7.preheader.lr.ph.split.us.us, %for.inc11.us.us 49 %i.023.us.us = phi i64 [ 0, %for.cond7.preheader.lr.ph.split.us.us ], [ %inc12.us.us, %for.inc11.us.us ] 50 %0 = mul nsw i64 %i.023.us.us, %indvars.iv48 51 br label %for.body9.us.us 52 53 for.body9.us.us: ; preds = %for.body9.us.us, %for.body9.lr.ph.us.us 54 %j.021.us.us = phi i64 [ 0, %for.body9.lr.ph.us.us ], [ %inc.us.us, %for.body9.us.us ] 55 %arrayidx.sum.us.us = add i64 %j.021.us.us, %0 56 %arrayidx10.us.us = getelementptr inbounds double, double* %vla.us, i64 %arrayidx.sum.us.us 57 store double 1.000000e+00, double* %arrayidx10.us.us, align 8 58 %inc.us.us = add nsw i64 %j.021.us.us, 1 59 %exitcond50 = icmp eq i64 %inc.us.us, %indvars.iv48 60 br i1 %exitcond50, label %for.inc11.us.us, label %for.body9.us.us 61 62 for.cond7.preheader.lr.ph.split.us.us: ; preds = %for.cond1.preheader, %for.end13.us 63 %indvars.iv48 = phi i64 [ %indvars.iv.next49, %for.end13.us ], [ 1, %for.cond1.preheader ] 64 %1 = call i8* @llvm.stacksave() 65 %2 = mul nuw i64 %indvars.iv48, %indvars.iv51 66 %vla.us = alloca double, i64 %2, align 16 67 br label %for.body9.lr.ph.us.us 68 69 for.inc17: ; preds = %for.end13.us, %for.cond1.preheader 70 %indvars.iv.next52 = add i64 %indvars.iv51, 1 71 %exitcond55 = icmp eq i64 %indvars.iv.next52, %a 72 br i1 %exitcond55, label %for.end19, label %for.cond1.preheader 73 74 for.end19: ; preds = %for.inc17, %entry 75 ret void 76 } 77 78 declare i8* @llvm.stacksave() nounwind 79 declare void @bar(i64, i64, double*) 80 declare void @llvm.stackrestore(i8*) nounwind 81
