forked from OSchip/llvm-project
60 lines
2.2 KiB
LLVM
60 lines
2.2 KiB
LLVM
; RUN: opt %loadPolly -polly-print-scops -polly-invariant-load-hoisting=true -disable-output < %s | FileCheck %s
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; This test case verifies that the statement domain of the invariant access
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; is the universe. In earlier versions of Polly, we accidentally computed an
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; empty access domain which resulted in invariant accesses not being executed
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; and consequently undef values being used.
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; CHECK: Invariant Accesses: {
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; CHECK-NEXT: ReadAccess := [Reduction Type: NONE] [Scalar: 0]
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; CHECK-NEXT: { Stmt_loop_next[i0] -> MemRef_a[1] };
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; CHECK-NEXT: Execution Context: { : }
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; CHECK-NEXT: }
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; CHECK-NEXT: Context:
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; CHECK-NEXT: { : }
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; CHECK-NEXT: Assumed Context:
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; CHECK-NEXT: { : }
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; CHECK-NEXT: Invalid Context:
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; CHECK-NEXT: { : false }
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; CHECK: Statements {
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; CHECK-NEXT: Stmt_loop
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; CHECK-NEXT: Domain :=
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; CHECK-NEXT: { Stmt_loop[i0] : 0 <= i0 <= 1 };
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; CHECK-NEXT: Schedule :=
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; CHECK-NEXT: { Stmt_loop[i0] -> [i0, 0] };
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; CHECK-NEXT: ReadAccess := [Reduction Type: NONE] [Scalar: 1]
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; CHECK-NEXT: { Stmt_loop[i0] -> MemRef_val__phi[] };
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; CHECK-NEXT: MustWriteAccess := [Reduction Type: NONE] [Scalar: 0]
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; CHECK-NEXT: { Stmt_loop[i0] -> MemRef_B[i0] };
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; CHECK-NEXT: Stmt_loop_next
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; CHECK-NEXT: Domain :=
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; CHECK-NEXT: { Stmt_loop_next[0] };
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; CHECK-NEXT: Schedule :=
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; CHECK-NEXT: { Stmt_loop_next[i0] -> [0, 1] };
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; CHECK-NEXT: MustWriteAccess := [Reduction Type: NONE] [Scalar: 1]
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; CHECK-NEXT: { Stmt_loop_next[i0] -> MemRef_val__phi[] };
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; CHECK-NEXT: }
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define void @foo(float* %a, float* noalias %B) {
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entry:
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br label %loop
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loop:
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%indvar = phi i64 [0, %entry], [%indvar.next, %loop.next]
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%val = phi float [1.0, %entry], [%a.val, %loop.next]
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%indvar.next = add nuw nsw i64 %indvar, 1
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%ptr = getelementptr float, float* %B, i64 %indvar
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store float %val, float* %ptr
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%icmp = icmp eq i64 %indvar.next, 2
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br i1 %icmp, label %ret, label %loop.next
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loop.next:
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%Aptr = getelementptr float, float* %a, i64 %indvar.next
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%a.val = load float, float* %Aptr
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br label %loop
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ret:
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ret void
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}
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