forked from OSchip/llvm-project
130 lines
4.6 KiB
LLVM
130 lines
4.6 KiB
LLVM
; RUN: opt %loadPolly -polly-scops -analyze < %s | FileCheck %s
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;
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; A valid Scop would print the list of it's statements, we check that we do not
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; see that list.
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;
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; CHECK-NOT: Statements
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;
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; FIXME: Handling this is an open problem, at the moment we just bail out.
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;
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; void foo(float *A, float *B,
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; long p1,
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; long p2,
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; long p3,
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; long p4,
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; long p5,
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; long p6,
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; long p7,
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; long p8,
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; long p9,
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; long p10,
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; long p11,
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; long p12) {
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; for (long i = 0; i < 100; i++) {
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; A[i] =
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; B[i + p1] +
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; B[i + p2] +
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; B[i + p3] +
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; B[i + p4] +
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; B[i + p5] +
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; B[i + p6] +
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; B[i + p7] +
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; B[i + p8] +
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; B[i + p9] +
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; B[i + p10] +
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; B[i + p11] +
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; B[i + p12];
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; }
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; }
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;
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; Computing the minimal and maximal element accessed in B is very expensive.
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; Expressing the minimal element itself yields a rather complex isl_pw_aff which
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; looks as follows:
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; { ...
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; MemRef_B[(100 + p11)] : p2 <= -1 + p1 and p3 <= -1 + p1 and p4 <= -1 + p1
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; and p5 <= -1 + p1 and p6 <= -1 + p1 and
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; p7 <= -1 + p1 and p8 <= -1 + p1 and p9 <= -1 + p1
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; and p10 <= -1 + p1 and p11 >= p1 and
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; p12 <= -1 + p11;
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; MemRef_B[(100 + p12)] : p2 <= -1 + p1 and p3 <= -1 + p1 and p4 <= -1 + p1
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; and p5 <= -1 + p1 and p6 <= -1 + p1 and
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; p7 <= -1 + p1 and p8 <= -1 + p1 and p9 <= -1 + p1
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; and p10 <= -1 + p1 and p11 <= -1 + p1 and p12 >= p1;
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;
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; and this isl_pw_aff is then 1:1 translated into a isl ast expression.
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;
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; In the best case, we would create a run-time check such as:
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;
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; if (B[99 + max(p1, p2, p3, p4, p5, p6, p7, p8, p9, p10, p11, p12)] < A[0]
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; || A[99] B[min(p0, p1, p2, p3, p4, p5, p6, p7, p8, p9]))
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;
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target datalayout = "e-m:e-i64:64-f80:128-n8:16:32:64-S128"
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; Function Attrs: nounwind uwtable
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define void @foo(float* %A, float* %B, i64 %p1, i64 %p2, i64 %p3, i64 %p4, i64 %p5, i64 %p6, i64 %p7, i64 %p8, i64 %p9, i64 %p10, i64 %p11, i64 %p12) #0 {
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entry:
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br label %entry.split
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entry.split: ; preds = %entry
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br label %for.body
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for.body: ; preds = %entry.split, %for.body
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%i.01 = phi i64 [ 0, %entry.split ], [ %tmp25, %for.body ]
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%tmp = add i64 %p1, %i.01
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%arrayidx = getelementptr float, float* %B, i64 %tmp
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%tmp2 = add i64 %p2, %i.01
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%arrayidx2 = getelementptr float, float* %B, i64 %tmp2
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%tmp3 = add i64 %p3, %i.01
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%arrayidx5 = getelementptr float, float* %B, i64 %tmp3
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%tmp4 = add i64 %p4, %i.01
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%arrayidx8 = getelementptr float, float* %B, i64 %tmp4
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%tmp5 = add i64 %p5, %i.01
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%arrayidx11 = getelementptr float, float* %B, i64 %tmp5
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%tmp6 = add i64 %p6, %i.01
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%arrayidx14 = getelementptr float, float* %B, i64 %tmp6
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%tmp7 = add i64 %p7, %i.01
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%arrayidx17 = getelementptr float, float* %B, i64 %tmp7
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%tmp8 = add i64 %p8, %i.01
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%arrayidx20 = getelementptr float, float* %B, i64 %tmp8
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%tmp9 = add i64 %p9, %i.01
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%arrayidx23 = getelementptr float, float* %B, i64 %tmp9
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%tmp10 = add i64 %p10, %i.01
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%arrayidx26 = getelementptr float, float* %B, i64 %tmp10
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%tmp11 = add i64 %p11, %i.01
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%arrayidx29 = getelementptr float, float* %B, i64 %tmp11
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%tmp12 = add i64 %p12, %i.01
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%arrayidx32 = getelementptr float, float* %B, i64 %tmp12
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%arrayidx34 = getelementptr float, float* %A, i64 %i.01
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%tmp13 = load float, float* %arrayidx, align 4
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%tmp14 = load float, float* %arrayidx2, align 4
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%add3 = fadd float %tmp13, %tmp14
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%tmp15 = load float, float* %arrayidx5, align 4
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%add6 = fadd float %add3, %tmp15
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%tmp16 = load float, float* %arrayidx8, align 4
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%add9 = fadd float %add6, %tmp16
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%tmp17 = load float, float* %arrayidx11, align 4
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%add12 = fadd float %add9, %tmp17
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%tmp18 = load float, float* %arrayidx14, align 4
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%add15 = fadd float %add12, %tmp18
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%tmp19 = load float, float* %arrayidx17, align 4
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%add18 = fadd float %add15, %tmp19
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%tmp20 = load float, float* %arrayidx20, align 4
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%add21 = fadd float %add18, %tmp20
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%tmp21 = load float, float* %arrayidx23, align 4
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%add24 = fadd float %add21, %tmp21
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%tmp22 = load float, float* %arrayidx26, align 4
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%add27 = fadd float %add24, %tmp22
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%tmp23 = load float, float* %arrayidx29, align 4
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%add30 = fadd float %add27, %tmp23
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%tmp24 = load float, float* %arrayidx32, align 4
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%add33 = fadd float %add30, %tmp24
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store float %add33, float* %arrayidx34, align 4
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%tmp25 = add nsw i64 %i.01, 1
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%exitcond = icmp ne i64 %tmp25, 100
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br i1 %exitcond, label %for.body, label %for.end
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for.end: ; preds = %for.body
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ret void
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}
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