forked from OSchip/llvm-project
43 lines
1.4 KiB
LLVM
43 lines
1.4 KiB
LLVM
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; RUN: llc < %s --enable-shrink-wrap=false -mtriple=powerpc64le-unknown-linux-gnu | FileCheck %s
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%struct.S = type { i8 }
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@sg = internal thread_local global %struct.S zeroinitializer, align 1
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@__dso_handle = external global i8
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@__tls_guard = internal thread_local unnamed_addr global i1 false
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@sum1 = internal thread_local global i32 0, align 4
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declare void @_ZN1SC1Ev(%struct.S*)
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declare void @_ZN1SD1Ev(%struct.S*)
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declare i32 @_tlv_atexit(void (i8*)*, i8*, i8*)
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; CHECK-LABEL: _ZTW2sg
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define cxx_fast_tlscc nonnull %struct.S* @_ZTW2sg() nounwind {
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%.b.i = load i1, i1* @__tls_guard, align 1
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; CHECK: bc 12, 1, [[BB_end:.?LBB0_[0-9]+]]
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br i1 %.b.i, label %__tls_init.exit, label %init.i
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init.i:
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; CHECK: Folded Spill
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store i1 true, i1* @__tls_guard, align 1
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tail call void @_ZN1SC1Ev(%struct.S* nonnull @sg) #2
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; CHECK: bl _ZN1SC1Ev
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%1 = tail call i32 @_tlv_atexit(void (i8*)* nonnull bitcast (void (%struct.S*)* @_ZN1SD1Ev to void (i8*)*), i8* nonnull getelementptr inbounds (%struct.S, %struct.S* @sg, i64 0, i32 0), i8* nonnull @__dso_handle) #2
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; CHECK: Folded Reload
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; CHECK: _tlv_atexit
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br label %__tls_init.exit
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; CHECK: [[BB_end]]:
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__tls_init.exit:
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ret %struct.S* @sg
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}
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; CHECK-LABEL: _ZTW4sum1
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define cxx_fast_tlscc nonnull i32* @_ZTW4sum1() nounwind {
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ret i32* @sum1
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}
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define cxx_fast_tlscc i32* @_ZTW4sum2() #0 {
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ret i32* @sum1
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}
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attributes #0 = { nounwind "no-frame-pointer-elim"="true" }
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