derek.holloway
7502bf64a4
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159 lines
8.0 KiB
LLVM
159 lines
8.0 KiB
LLVM
; RUN: opt %loadNPMPolly -polly-stmt-granularity=bb '-passes=polly-custom<flatten;delicm>' -polly-delicm-compute-known=true -polly-delicm-overapproximate-writes=true -polly-delicm-partial-writes=false -polly-print-delicm -disable-output < %s | FileCheck %s --check-prefix=APPROX
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; RUN: opt %loadNPMPolly -polly-stmt-granularity=bb '-passes=polly-custom<flatten;delicm>' -polly-delicm-compute-known=true -polly-delicm-overapproximate-writes=false -polly-delicm-partial-writes=false -polly-print-delicm -disable-output < %s | FileCheck %s --check-prefix=EXACT
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; RUN: opt %loadNPMPolly -polly-stmt-granularity=bb '-passes=polly-custom<flatten;delicm>' -polly-delicm-compute-known=true -polly-delicm-partial-writes=true -polly-print-delicm -disable-output < %s | FileCheck %s --check-prefix=PARTIAL
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;
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; void func(double *A {
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; for (int j = -1; j < 3; j += 1) { /* outer */
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; double phi = 0.0;
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; if (0 < j)
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; for (int i = 0; i < j; 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 [-1, %outer.preheader], [%j.inc, %outer.inc]
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%j.cmp = icmp slt i32 %j, 3
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br i1 %j.cmp, label %reduction.checkloop, label %outer.exit
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reduction.checkloop:
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%j2.cmp = icmp slt i32 0, %j
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br i1 %j2.cmp, label %reduction.preheader, label %reduction.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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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, %j
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br i1 %i.cmp, label %reduction.for, label %reduction.exit
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reduction.exit:
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%val = phi double [%add, %reduction.inc], [0.0, %reduction.checkloop]
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%A_idx = getelementptr inbounds double, ptr %A, i32 %j
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store double %val, 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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; APPROX: After accesses {
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; APPROX-NEXT: Stmt_reduction_checkloop
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; APPROX-NEXT: MustWriteAccess := [Reduction Type: NONE] [Scalar: 1]
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; APPROX-NEXT: { Stmt_reduction_checkloop[i0] -> MemRef_val__phi[] };
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; APPROX-NEXT: new: { Stmt_reduction_checkloop[i0] -> MemRef_A[-1 + i0] };
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; APPROX-NEXT: Stmt_reduction_preheader
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; APPROX-NEXT: MustWriteAccess := [Reduction Type: NONE] [Scalar: 1]
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; APPROX-NEXT: { Stmt_reduction_preheader[i0] -> MemRef_phi__phi[] };
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; APPROX-NEXT: new: { Stmt_reduction_preheader[i0] -> MemRef_A[-1 + i0] };
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; APPROX-NEXT: Stmt_reduction_for
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; APPROX-NEXT: ReadAccess := [Reduction Type: NONE] [Scalar: 1]
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; APPROX-NEXT: { Stmt_reduction_for[i0, i1] -> MemRef_phi__phi[] };
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; APPROX-NEXT: new: { Stmt_reduction_for[i0, i1] -> MemRef_A[-1 + i0] };
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; APPROX-NEXT: MustWriteAccess := [Reduction Type: NONE] [Scalar: 1]
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; APPROX-NEXT: { Stmt_reduction_for[i0, i1] -> MemRef_phi[] };
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; APPROX-NEXT: new: { Stmt_reduction_for[i0, i1] -> MemRef_A[-1 + i0] };
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; APPROX-NEXT: Stmt_body
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; APPROX-NEXT: MustWriteAccess := [Reduction Type: NONE] [Scalar: 1]
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; APPROX-NEXT: { Stmt_body[i0, i1] -> MemRef_add[] };
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; APPROX-NEXT: new: { Stmt_body[i0, i1] -> MemRef_A[-1 + i0] };
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; APPROX-NEXT: ReadAccess := [Reduction Type: NONE] [Scalar: 1]
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; APPROX-NEXT: { Stmt_body[i0, i1] -> MemRef_phi[] };
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; APPROX-NEXT: new: { Stmt_body[i0, i1] -> MemRef_A[-1 + i0] };
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; APPROX-NEXT: Stmt_reduction_inc
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; APPROX-NEXT: ReadAccess := [Reduction Type: NONE] [Scalar: 1]
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; APPROX-NEXT: { Stmt_reduction_inc[i0, i1] -> MemRef_add[] };
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; APPROX-NEXT: new: { Stmt_reduction_inc[i0, i1] -> MemRef_A[-1 + i0] };
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; APPROX-NEXT: MustWriteAccess := [Reduction Type: NONE] [Scalar: 1]
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; APPROX-NEXT: { Stmt_reduction_inc[i0, i1] -> MemRef_phi__phi[] };
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; APPROX-NEXT: new: { Stmt_reduction_inc[i0, i1] -> MemRef_A[2] };
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; APPROX-NEXT: MustWriteAccess := [Reduction Type: NONE] [Scalar: 1]
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; APPROX-NEXT: { Stmt_reduction_inc[i0, i1] -> MemRef_val__phi[] };
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; APPROX-NEXT: new: { Stmt_reduction_inc[i0, i1] -> MemRef_A[-1 + i0] };
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; APPROX-NEXT: Stmt_reduction_exit
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; APPROX-NEXT: ReadAccess := [Reduction Type: NONE] [Scalar: 1]
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; APPROX-NEXT: { Stmt_reduction_exit[i0] -> MemRef_val__phi[] };
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; APPROX-NEXT: new: { Stmt_reduction_exit[i0] -> MemRef_A[-1 + i0] };
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; APPROX-NEXT: MustWriteAccess := [Reduction Type: NONE] [Scalar: 0]
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; APPROX-NEXT: { Stmt_reduction_exit[i0] -> MemRef_A[-1 + i0] };
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; APPROX-NEXT: }
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; EXACT: No modification has been made
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; PARTIAL: After accesses {
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; PARTIAL-NEXT: Stmt_reduction_checkloop
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; PARTIAL-NEXT: MustWriteAccess := [Reduction Type: NONE] [Scalar: 1]
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; PARTIAL-NEXT: { Stmt_reduction_checkloop[i0] -> MemRef_val__phi[] };
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; PARTIAL-NEXT: new: { Stmt_reduction_checkloop[i0] -> MemRef_A[-1 + i0] : i0 <= 1 };
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; PARTIAL-NEXT: Stmt_reduction_preheader
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; PARTIAL-NEXT: MustWriteAccess := [Reduction Type: NONE] [Scalar: 1]
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; PARTIAL-NEXT: { Stmt_reduction_preheader[i0] -> MemRef_phi__phi[] };
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; PARTIAL-NEXT: new: { Stmt_reduction_preheader[i0] -> MemRef_A[-1 + i0] };
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; PARTIAL-NEXT: Stmt_reduction_for
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; PARTIAL-NEXT: ReadAccess := [Reduction Type: NONE] [Scalar: 1]
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; PARTIAL-NEXT: { Stmt_reduction_for[i0, i1] -> MemRef_phi__phi[] };
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; PARTIAL-NEXT: new: { Stmt_reduction_for[i0, i1] -> MemRef_A[-1 + i0] };
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; PARTIAL-NEXT: MustWriteAccess := [Reduction Type: NONE] [Scalar: 1]
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; PARTIAL-NEXT: { Stmt_reduction_for[i0, i1] -> MemRef_phi[] };
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; PARTIAL-NEXT: new: { Stmt_reduction_for[i0, i1] -> MemRef_A[-1 + i0] };
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; PARTIAL-NEXT: Stmt_body
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; PARTIAL-NEXT: MustWriteAccess := [Reduction Type: NONE] [Scalar: 1]
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; PARTIAL-NEXT: { Stmt_body[i0, i1] -> MemRef_add[] };
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; PARTIAL-NEXT: new: { Stmt_body[i0, i1] -> MemRef_A[-1 + i0] };
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; PARTIAL-NEXT: ReadAccess := [Reduction Type: NONE] [Scalar: 1]
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; PARTIAL-NEXT: { Stmt_body[i0, i1] -> MemRef_phi[] };
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; PARTIAL-NEXT: new: { Stmt_body[i0, i1] -> MemRef_A[-1 + i0] };
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; PARTIAL-NEXT: Stmt_reduction_inc
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; PARTIAL-NEXT: ReadAccess := [Reduction Type: NONE] [Scalar: 1]
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; PARTIAL-NEXT: { Stmt_reduction_inc[i0, i1] -> MemRef_add[] };
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; PARTIAL-NEXT: new: { Stmt_reduction_inc[i0, i1] -> MemRef_A[-1 + i0] };
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; PARTIAL-NEXT: MustWriteAccess := [Reduction Type: NONE] [Scalar: 1]
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; PARTIAL-NEXT: { Stmt_reduction_inc[i0, i1] -> MemRef_phi__phi[] };
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; PARTIAL-NEXT: new: { Stmt_reduction_inc[3, 0] -> MemRef_A[2] };
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; PARTIAL-NEXT: MustWriteAccess := [Reduction Type: NONE] [Scalar: 1]
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; PARTIAL-NEXT: { Stmt_reduction_inc[i0, i1] -> MemRef_val__phi[] };
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; PARTIAL-NEXT: new: { Stmt_reduction_inc[i0, -2 + i0] -> MemRef_A[-1 + i0] };
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; PARTIAL-NEXT: Stmt_reduction_exit
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; PARTIAL-NEXT: ReadAccess := [Reduction Type: NONE] [Scalar: 1]
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; PARTIAL-NEXT: { Stmt_reduction_exit[i0] -> MemRef_val__phi[] };
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; PARTIAL-NEXT: new: { Stmt_reduction_exit[i0] -> MemRef_A[-1 + i0] };
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; PARTIAL-NEXT: MustWriteAccess := [Reduction Type: NONE] [Scalar: 0]
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; PARTIAL-NEXT: { Stmt_reduction_exit[i0] -> MemRef_A[-1 + i0] };
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; PARTIAL-NEXT: }
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