derek.holloway
7502bf64a4
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89 lines
2.7 KiB
LLVM
89 lines
2.7 KiB
LLVM
;; Test mixed D0/D2 and D5 COMDATs. Reduced from:
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;;
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;; // a.cc
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;; template <typename T>
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;; struct A final { virtual ~A() {} };
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;; extern "C" void aa() { A<int> a; }
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;; // b.cc
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;; template <typename T>
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;; struct A final { virtual ~A() {} };
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;; template struct A<int>;
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;; extern "C" void bb(Aptr a) { delete a; }
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;;
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;; clang -c -fpic -O0 -flto=thin a.cc && ld.lld -shared a.o b.o
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;;
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;; The file matches lld/test/ELF/lto/ctor-dtor-alias2.ll
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; RUN: rm -rf %t && split-file %s %t && cd %t
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;; a.bc defines D0 in comdat D0 and D2 in comdat D2. b.bc defines D0/D1/D2 in comdat D5.
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; RUN: opt -module-summary a.ll -o a.bc
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; RUN: opt -module-summary b.ll -o b.bc
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; RUN: llvm-lto2 run a.bc b.bc -r=a.bc,aa,px -r=a.bc,_ZN1AIiED0Ev,px -r=a.bc,_ZN1AIiED2Ev,px -r=a.bc,_ZdlPv, \
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; RUN: -r=b.bc,bb,px -r=b.bc,_ZN1AIiED0Ev, -r=b.bc,_ZN1AIiED1Ev,px -r=b.bc,_ZN1AIiED2Ev, -r=b.bc,_ZdlPv, -o out --save-temps
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; RUN: llvm-dis < out.2.1.promote.bc | FileCheck %s
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;; Although D0/D2 in b.bc is non-prevailing, keep D1/D2 as definitions, otherwise
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;; the output may have an undefined and unsatisfied D1.
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; CHECK: @_ZN1AIiED1Ev = weak_odr unnamed_addr alias void (ptr), ptr @_ZN1AIiED2Ev
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; CHECK: define weak_odr void @_ZN1AIiED2Ev(ptr noundef nonnull %this) unnamed_addr comdat($_ZN1AIiED5Ev) {
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; CHECK: define available_externally void @_ZN1AIiED0Ev(ptr noundef nonnull %this) unnamed_addr {
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;--- a.ll
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target datalayout = "e-m:e-p270:32:32-p271:32:32-p272:64:64-i64:64-f80:128-n8:16:32:64-S128"
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target triple = "x86_64-unknown-linux-gnu"
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$_ZN1AIiED2Ev = comdat any
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$_ZN1AIiED0Ev = comdat any
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define void @aa() {
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entry:
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%a = alloca ptr, align 8
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call void @_ZN1AIiED2Ev(ptr noundef nonnull %a)
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ret void
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}
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define linkonce_odr void @_ZN1AIiED2Ev(ptr noundef nonnull %this) unnamed_addr comdat {
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ret void
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}
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define linkonce_odr void @_ZN1AIiED0Ev(ptr noundef nonnull %this) unnamed_addr comdat {
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entry:
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call void @_ZN1AIiED2Ev(ptr noundef nonnull %this)
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call void @_ZdlPv(ptr noundef %this)
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ret void
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}
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declare void @_ZdlPv(ptr noundef)
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;--- b.ll
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target datalayout = "e-m:e-p270:32:32-p271:32:32-p272:64:64-i64:64-f80:128-n8:16:32:64-S128"
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target triple = "x86_64-unknown-linux-gnu"
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$_ZN1AIiED5Ev = comdat any
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$_ZTV1AIiE = comdat any
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@_ZN1AIiED1Ev = weak_odr unnamed_addr alias void (ptr), ptr @_ZN1AIiED2Ev
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define weak_odr void @_ZN1AIiED2Ev(ptr noundef nonnull %this) unnamed_addr comdat($_ZN1AIiED5Ev) {
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ret void
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}
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define weak_odr void @_ZN1AIiED0Ev(ptr noundef nonnull %this) unnamed_addr comdat($_ZN1AIiED5Ev) {
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entry:
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call void @_ZN1AIiED1Ev(ptr noundef nonnull %this)
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call void @_ZdlPv(ptr noundef %this)
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ret void
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}
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declare void @_ZdlPv(ptr noundef)
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define void @bb(ptr noundef %a) {
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entry:
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call void @_ZN1AIiED1Ev(ptr noundef nonnull %a)
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call void @_ZdlPv(ptr noundef %a)
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ret void
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}
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