forked from OSchip/llvm-project
63 lines
1.5 KiB
LLVM
63 lines
1.5 KiB
LLVM
; RUN: opt %loadPolly -polly-scops -analyze < %s | FileCheck %s
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; Verify that we do not allow PHI nodes such as %phi, if they reference an error
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; block and are used by anything else than a terminator instruction.
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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: [p] -> { Stmt_loop[i0] : p >= 13 and 0 <= i0 <= 1025 };
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; CHECK-NEXT: Schedule :=
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; CHECK-NEXT: [p] -> { Stmt_loop[i0] -> [i0] };
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; CHECK-NEXT: MustWriteAccess := [Reduction Type: NONE] [Scalar: 0]
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; CHECK-NEXT: [p] -> { Stmt_loop[i0] -> MemRef_X[0] };
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; CHECK-NEXT: MustWriteAccess := [Reduction Type: NONE] [Scalar: 1]
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; CHECK-NEXT: [p] -> { Stmt_loop[i0] -> MemRef_phi[] };
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; CHECK-NEXT: }
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declare void @bar()
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define void @foo(float* %X, i64 %p) {
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entry:
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br label %br
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br:
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%cmp1 = icmp sle i64 %p, 12
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br i1 %cmp1, label %A, label %br2
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br2:
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%cmp3 = icmp sle i64 %p, 12
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br i1 %cmp3, label %cond, label %loop
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loop:
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%indvar = phi i64 [0, %br2], [%indvar.next, %loop]
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%indvar.next = add nsw i64 %indvar, 1
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store float 41.0, float* %X
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%cmp2 = icmp sle i64 %indvar, 1024
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br i1 %cmp2, label %loop, label %merge
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cond:
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br label %cond2
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cond2:
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call void @bar()
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br label %merge
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merge:
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%phi = phi i1 [false, %cond2], [true, %loop]
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%add = add i1 %phi, 1
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br i1 %add, label %A, label %B
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A:
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store float 42.0, float* %X
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br label %exit
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B:
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call void @bar()
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store float 41.0, float* %X
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br label %exit
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exit:
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ret void
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}
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