derek.holloway
7502bf64a4
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117 lines
3.2 KiB
LLVM
117 lines
3.2 KiB
LLVM
; RUN: opt -S -passes=mergefunc -mergefunc-use-aliases < %s | FileCheck %s
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; Aliases should always be created for the weak functions, and
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; for external functions if there is no local function
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; CHECK: @external_external_2 = unnamed_addr alias void (ptr), ptr @external_external_1
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; CHECK: @weak_weak_2 = weak unnamed_addr alias void (ptr), ptr @0
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; CHECK: @weak_weak_1 = weak unnamed_addr alias void (ptr), ptr @0
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; CHECK: @weak_external_1 = weak unnamed_addr alias void (ptr), ptr @weak_external_2
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; CHECK: @external_weak_2 = weak unnamed_addr alias void (ptr), ptr @external_weak_1
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; CHECK: @weak_internal_1 = weak unnamed_addr alias void (ptr), ptr @weak_internal_2
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; CHECK: @internal_weak_2 = weak unnamed_addr alias void (ptr), ptr @internal_weak_1
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; A strong backing function had to be created for the weak-weak pair
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; CHECK: define private void @0(ptr %a) unnamed_addr
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; CHECK-NEXT: call void @dummy4()
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; These internal functions are dropped in favor of the external ones
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; CHECK-NOT: define internal void @external_internal_2(ptr %a) unnamed_addr
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; CHECK-NOT: define internal void @internal_external_1(ptr %a) unnamed_addr
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; CHECK-NOT: define internal void @internal_external_1(ptr %a) unnamed_addr
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; CHECK-NOT: define internal void @internal_external_2(ptr %a) unnamed_addr
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; Only used to mark which functions should be merged.
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declare void @dummy1()
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declare void @dummy2()
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declare void @dummy3()
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declare void @dummy4()
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declare void @dummy5()
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declare void @dummy6()
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declare void @dummy7()
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declare void @dummy8()
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declare void @dummy9()
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define void @external_external_1(ptr %a) unnamed_addr {
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call void @dummy1()
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ret void
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}
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define void @external_external_2(ptr %a) unnamed_addr {
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call void @dummy1()
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ret void
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}
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define void @external_internal_1(ptr %a) unnamed_addr {
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call void @dummy2()
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ret void
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}
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define internal void @external_internal_2(ptr %a) unnamed_addr {
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call void @dummy2()
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ret void
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}
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define internal void @internal_external_1(ptr %a) unnamed_addr {
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call void @dummy3()
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ret void
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}
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define void @internal_external_2(ptr %a) unnamed_addr {
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call void @dummy3()
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ret void
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}
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define weak void @weak_weak_1(ptr %a) unnamed_addr {
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call void @dummy4()
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ret void
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}
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define weak void @weak_weak_2(ptr %a) unnamed_addr {
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call void @dummy4()
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ret void
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}
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define weak void @weak_external_1(ptr %a) unnamed_addr {
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call void @dummy5()
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ret void
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}
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define external void @weak_external_2(ptr %a) unnamed_addr {
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call void @dummy5()
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ret void
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}
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define external void @external_weak_1(ptr %a) unnamed_addr {
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call void @dummy6()
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ret void
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}
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define weak void @external_weak_2(ptr %a) unnamed_addr {
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call void @dummy6()
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ret void
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}
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define weak void @weak_internal_1(ptr %a) unnamed_addr {
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call void @dummy7()
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ret void
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}
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define internal void @weak_internal_2(ptr %a) unnamed_addr {
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call void @dummy7()
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ret void
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}
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define internal void @internal_weak_1(ptr %a) unnamed_addr {
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call void @dummy8()
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ret void
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}
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define weak void @internal_weak_2(ptr %a) unnamed_addr {
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call void @dummy8()
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ret void
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}
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define internal void @internal_internal_1(ptr %a) unnamed_addr {
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call void @dummy9()
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ret void
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}
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define internal void @internal_internal_2(ptr %a) unnamed_addr {
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call void @dummy9()
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ret void
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}
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