derek.holloway
7502bf64a4
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81 lines
3.7 KiB
LLVM
81 lines
3.7 KiB
LLVM
; RUN: opt %loadNPMPolly -polly-stmt-granularity=bb '-passes=polly-custom<scops>' -polly-print-scops -disable-output < %s 2>&1 | FileCheck %s -check-prefix=NONAFFINE
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; RUN: opt %loadNPMPolly -polly-stmt-granularity=bb '-passes=polly-custom<scops>' -polly-print-scops -disable-output -polly-allow-nonaffine-branches=false < %s 2>&1 | FileCheck %s -check-prefix=NO-NONEAFFINE
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; NONAFFINE: Statements {
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; NONAFFINE-NEXT: Stmt_loop
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; NONAFFINE-NEXT: Domain :=
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; NONAFFINE-NEXT: [p] -> { Stmt_loop[0] : p = 100 };
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; NONAFFINE-NEXT: Schedule :=
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; NONAFFINE-NEXT: [p] -> { Stmt_loop[i0] -> [0, 0] };
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; NONAFFINE-NEXT: MustWriteAccess := [Reduction Type: NONE] [Scalar: 0]
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; NONAFFINE-NEXT: [p] -> { Stmt_loop[i0] -> MemRef_A[0] };
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; NONAFFINE-NEXT: MustWriteAccess := [Reduction Type: NONE] [Scalar: 1]
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; NONAFFINE-NEXT: [p] -> { Stmt_loop[i0] -> MemRef_cmp[] };
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; NONAFFINE-NEXT: Stmt_branch__TO__end
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; NONAFFINE-NEXT: Domain :=
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; NONAFFINE-NEXT: [p] -> { Stmt_branch__TO__end[] : p = 100 };
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; NONAFFINE-NEXT: Schedule :=
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; NONAFFINE-NEXT: [p] -> { Stmt_branch__TO__end[] -> [1, 0] };
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; NONAFFINE-NEXT: ReadAccess := [Reduction Type: NONE] [Scalar: 1]
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; NONAFFINE-NEXT: [p] -> { Stmt_branch__TO__end[] -> MemRef_cmp[] };
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; NONAFFINE-NEXT: MayWriteAccess := [Reduction Type: NONE] [Scalar: 0]
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; NONAFFINE-NEXT: [p] -> { Stmt_branch__TO__end[] -> MemRef_A[0] };
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; NONAFFINE-NEXT: }
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; NO-NONEAFFINE: Statements {
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; NO-NONEAFFINE-NEXT: Stmt_then
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; NO-NONEAFFINE-NEXT: Domain :=
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; NO-NONEAFFINE-NEXT: [p_0, p] -> { Stmt_then[] : p >= 2 + p_0 or p <= p_0 };
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; NO-NONEAFFINE-NEXT: Schedule :=
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; NO-NONEAFFINE-NEXT: [p_0, p] -> { Stmt_then[] -> [] };
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; NO-NONEAFFINE-NEXT: MustWriteAccess := [Reduction Type: NONE] [Scalar: 0]
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; NO-NONEAFFINE-NEXT: [p_0, p] -> { Stmt_then[] -> MemRef_A[0] };
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; NO-NONEAFFINE-NEXT: }
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; NO-NONEAFFINE: Statements {
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; NO-NONEAFFINE-NEXT: Stmt_loop
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; NO-NONEAFFINE-NEXT: Domain :=
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; NO-NONEAFFINE-NEXT: [p] -> { Stmt_loop[0] : p = 100 };
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; NO-NONEAFFINE-NEXT: Schedule :=
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; NO-NONEAFFINE-NEXT: [p] -> { Stmt_loop[i0] -> [0] };
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; NO-NONEAFFINE-NEXT: MustWriteAccess := [Reduction Type: NONE] [Scalar: 0]
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; NO-NONEAFFINE-NEXT: [p] -> { Stmt_loop[i0] -> MemRef_A[0] };
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; NO-NONEAFFINE-NEXT: MustWriteAccess := [Reduction Type: NONE] [Scalar: 1]
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; NO-NONEAFFINE-NEXT: [p] -> { Stmt_loop[i0] -> MemRef_cmp[] };
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; NO-NONEAFFINE-NEXT: }
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; Verify that this test case does not crash -polly-scops. The problem in
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; this test case is that the branch instruction in %branch references
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; a scalar evolution expression for which no useful value can be computed at the
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; location %branch, as the loop %loop does not terminate. At some point, we
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; did not identify the branch condition as non-affine during scop detection.
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; This test verifies that we either model the branch condition as non-affine
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; region or only detect a smaller region if non-affine conditions are not
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; allowed.
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target datalayout = "e-m:e-i8:8:32-i16:16:32-i64:64-i128:128-n32:64-S128"
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target triple = "aarch64--linux-android"
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define void @f(i16 %event, i8 %p, ptr %A) {
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entry:
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br label %loop
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loop:
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%indvar = phi i8 [ 0, %entry ], [ %indvar.next, %loop ]
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%indvar.next = add i8 %indvar, 1
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store float 1.0, ptr %A
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%cmp = icmp eq i8 %indvar.next, %p
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%possibly_infinite = icmp eq i8 100, %p
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br i1 %possibly_infinite, label %branch, label %loop
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branch:
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br i1 %cmp, label %end, label %then
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then:
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store float 1.0, ptr %A
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br label %end
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end:
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ret void
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}
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