32 lines
727 B
LLVM
32 lines
727 B
LLVM
; If there's a call in the loop which dominates the backedge, we
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; don't need a safepoint poll (since the callee must contain a
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; poll test).
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;; RUN: opt %s -place-safepoints -S | FileCheck %s
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declare void @foo()
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define void @test1() gc "statepoint-example" {
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; CHECK-LABEL: test1
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entry:
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; CHECK-LABEL: entry
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; CHECK: statepoint
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br label %loop
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loop:
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; CHECK-LABEL: loop
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; CHECK: @llvm.experimental.gc.statepoint.p0f_isVoidf(i64 2882400000, i32 0, void ()* @foo
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; CHECK-NOT: statepoint
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call void @foo()
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br label %loop
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}
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; This function is inlined when inserting a poll.
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declare void @do_safepoint()
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define void @gc.safepoint_poll() {
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; CHECK-LABEL: gc.safepoint_poll
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entry:
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call void @do_safepoint()
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ret void
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}
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