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