derek.holloway
7502bf64a4
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131 lines
4.5 KiB
LLVM
131 lines
4.5 KiB
LLVM
; RUN: opt %loadNPMPolly '-passes=polly-custom<flatten;delicm>' -polly-print-delicm -disable-output < %s | FileCheck %s
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;
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; void func(double *A) {
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; for (int j = 0; j < 2; j += 1) { /* outer */
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; double phi = 0.0;
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; for (int i = 0; i < 4; i += 1) /* reduction */
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; phi += 4.2;
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; A[j] = phi;
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; }
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; }
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;
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define void @func(ptr noalias nonnull %A) {
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entry:
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br label %outer.preheader
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outer.preheader:
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br label %outer.for
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outer.for:
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%j = phi i32 [0, %outer.preheader], [%j.inc, %outer.inc]
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%j.cmp = icmp slt i32 %j, 2
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br i1 %j.cmp, label %reduction.preheader, label %outer.exit
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reduction.preheader:
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br label %reduction.for
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reduction.for:
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%i = phi i32 [0, %reduction.preheader], [%i.inc, %reduction.inc]
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%phi = phi double [0.0, %reduction.preheader], [%add, %reduction.inc]
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%i.cmp = icmp slt i32 %i, 4
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br i1 %i.cmp, label %body, label %reduction.exit
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body:
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%add = fadd double %phi, 4.2
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br label %reduction.inc
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reduction.inc:
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%i.inc = add nuw nsw i32 %i, 1
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br label %reduction.for
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reduction.exit:
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%A_idx = getelementptr inbounds double, ptr %A, i32 %j
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store double %phi, ptr %A_idx
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br label %outer.inc
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outer.inc:
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%j.inc = add nuw nsw i32 %j, 1
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br label %outer.for
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outer.exit:
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br label %return
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return:
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ret void
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}
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; Unrolled flattened schedule:
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; [0] Stmt_reduction_preheader[0]
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; [1] Stmt_reduction_for[0, 0]
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; [2] Stmt_body[0, 0]
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; [3] Stmt_reduction_inc[0, 0]
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; [4] Stmt_reduction_for[0, 1]
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; [5] Stmt_body[0, 1]
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; [6] Stmt_reduction_inc[0, 1]
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; [7] Stmt_reduction_for[0, 2]
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; [8] Stmt_body[0, 2]
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; [9] Stmt_reduction_inc[0, 2]
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; [10] Stmt_reduction_for[0, 3]
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; [11] Stmt_body[0, 3]
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; [12] Stmt_reduction_inc[0, 3]
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; [13] Stmt_reduction_for[0, 4]
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; [14] Stmt_reduction_exit[0]
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; [15] Stmt_reduction_preheader[0]
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; [16] Stmt_reduction_for[1, 0]
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; [17] Stmt_body[1, 0]
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; [18] Stmt_reduction_inc[1, 0]
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; [19] Stmt_reduction_for[1, 1]
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; [20] Stmt_body[1, 1]
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; [21] Stmt_reduction_inc[1, 1]
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; [22] Stmt_reduction_for[1, 2]
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; [23] Stmt_body[1, 2]
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; [24] Stmt_reduction_inc[1, 2]
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; [25] Stmt_reduction_for[1, 3]
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; [26] Stmt_body[1, 3]
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; [27] Stmt_reduction_inc[1, 3]
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; [28] Stmt_reduction_for[1, 4]
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; [29] Stmt_reduction_exit[1]
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; CHECK: After accesses {
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; CHECK-NEXT: Stmt_reduction_preheader
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; CHECK-NEXT: MustWriteAccess := [Reduction Type: NONE] [Scalar: 1]
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; CHECK-NEXT: { Stmt_reduction_preheader[i0] -> MemRef_phi__phi[] };
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; CHECK-NEXT: new: { Stmt_reduction_preheader[i0] -> MemRef_A[i0] };
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; CHECK-NEXT: Stmt_reduction_for
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; CHECK-NEXT: ReadAccess := [Reduction Type: NONE] [Scalar: 1]
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; CHECK-NEXT: { Stmt_reduction_for[i0, i1] -> MemRef_phi__phi[] };
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; CHECK-NEXT: new: { Stmt_reduction_for[i0, i1] -> MemRef_A[i0] };
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; CHECK-NEXT: MustWriteAccess := [Reduction Type: NONE] [Scalar: 1]
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; CHECK-NEXT: { Stmt_reduction_for[i0, i1] -> MemRef_phi[] };
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; CHECK-NEXT: new: { Stmt_reduction_for[i0, i1] -> MemRef_A[i0] };
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; CHECK-NEXT: Stmt_body
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; CHECK-NEXT: MustWriteAccess := [Reduction Type: NONE] [Scalar: 1]
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; CHECK-NEXT: { Stmt_body[i0, i1] -> MemRef_add[] };
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; CHECK-NEXT: new: { Stmt_body[i0, i1] -> MemRef_A[i0] };
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; CHECK-NEXT: ReadAccess := [Reduction Type: NONE] [Scalar: 1]
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; CHECK-NEXT: { Stmt_body[i0, i1] -> MemRef_phi[] };
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; CHECK-NEXT: new: { Stmt_body[i0, i1] -> MemRef_A[i0] };
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; CHECK-NEXT: Stmt_reduction_inc
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; CHECK-NEXT: ReadAccess := [Reduction Type: NONE] [Scalar: 1]
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; CHECK-NEXT: { Stmt_reduction_inc[i0, i1] -> MemRef_add[] };
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; CHECK-NEXT: new: { Stmt_reduction_inc[i0, i1] -> MemRef_A[i0] : i1 <= 7 - 5i0; Stmt_reduction_inc[1, 3] -> MemRef_A[1] };
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; CHECK-NEXT: MustWriteAccess := [Reduction Type: NONE] [Scalar: 1]
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; CHECK-NEXT: { Stmt_reduction_inc[i0, i1] -> MemRef_phi__phi[] };
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; CHECK-NEXT: new: { Stmt_reduction_inc[i0, i1] -> MemRef_A[i0] };
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; CHECK-NEXT: Stmt_reduction_exit
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; CHECK-NEXT: MustWriteAccess := [Reduction Type: NONE] [Scalar: 0]
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; CHECK-NEXT: { Stmt_reduction_exit[i0] -> MemRef_A[i0] };
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; CHECK-NEXT: ReadAccess := [Reduction Type: NONE] [Scalar: 1]
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; CHECK-NEXT: { Stmt_reduction_exit[i0] -> MemRef_phi[] };
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; CHECK-NEXT: new: { Stmt_reduction_exit[i0] -> MemRef_A[i0] };
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; CHECK-NEXT: }
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