derek.holloway
7502bf64a4
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99 lines
4.0 KiB
LLVM
99 lines
4.0 KiB
LLVM
; RUN: opt %loadNPMPolly -polly-stmt-granularity=bb '-passes=polly-custom<flatten;delicm>' -polly-delicm-overapproximate-writes=true -polly-delicm-compute-known=true -polly-print-delicm -disable-output < %s | FileCheck %s
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;
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; void func(double *A, double Start) {
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; for (int j = 0; j < 2; j += 1) { /* outer */
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; double phi = Start;
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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, double %Start) {
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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 [%Start, %reduction.preheader], [%add, %reduction.inc]
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br label %body
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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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%i.cmp = icmp slt i32 %i.inc, 4
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br i1 %i.cmp, label %reduction.for, label %reduction.exit
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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 %add, 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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; CHECK: After accesses {
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; CHECK-NEXT: Stmt_reduction_preheader
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; CHECK-NEXT: ReadAccess := [Reduction Type: NONE] [Scalar: 1]
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; CHECK-NEXT: { Stmt_reduction_preheader[i0] -> MemRef_Start[] };
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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] : 3i1 <= 22 - 14i0; Stmt_body[1, 3] -> MemRef_A[1] };
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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] : 3i1 <= 22 - 14i0; 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_add[] };
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; CHECK-NEXT: new: { Stmt_reduction_exit[i0] -> MemRef_A[i0] };
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; CHECK-NEXT: }
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