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fd739804e0
For a default visibility external linkage definition, dso_local is set for ELF
-fno-pic/-fpie and COFF and Mach-O. Since default clang -cc1 for ELF is similar
to -fpic ("PIC Level" is not set), this nuance causes unneeded binary format differences.
To make emitted IR similar, ELF -cc1 -fpic will default to -fno-semantic-interposition,
which sets dso_local for default visibility external linkage definitions.
To make this flip smooth and enable future (dso_local as definition default),
this patch replaces (function) `define ` with `define{{.*}} `,
(variable/constant/alias) `= ` with `={{.*}} `, or inserts appropriate `{{.*}} `.
24 lines
672 B
C++
24 lines
672 B
C++
// RUN: %clang_cc1 -triple i386-unknown-unknown -std=c++11 %s -emit-llvm -o - | FileCheck %s
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namespace Test1 {
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struct A { virtual ~A() {} };
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struct B final : A {};
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struct C : A { virtual ~C() final {} };
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struct D { virtual ~D() final = 0; };
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// CHECK-LABEL: define{{.*}} void @_ZN5Test13fooEPNS_1BE
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void foo(B *b) {
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// CHECK: call void @_ZN5Test11BD1Ev
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delete b;
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}
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// CHECK-LABEL: define{{.*}} void @_ZN5Test14foo2EPNS_1CE
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void foo2(C *c) {
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// CHECK: call void @_ZN5Test11CD1Ev
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delete c;
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}
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// CHECK-LABEL: define{{.*}} void @_ZN5Test14evilEPNS_1DE
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void evil(D *p) {
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// CHECK-NOT: call void @_ZN5Test11DD1Ev
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delete p;
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}
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}
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