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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
1.0 KiB
C++
24 lines
1.0 KiB
C++
// Sparc64 is used because AArch64 and X86_64 would both use musttail.
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// RUN: %clang_cc1 -triple sparc64-linux-gnu -emit-llvm -debug-info-kind=line-tables-only %s -o - | FileCheck %s
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// RUN: %clang_cc1 -triple sparc64-linux-gnu -emit-llvm -debug-info-kind=line-directives-only %s -o - | FileCheck %s
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// Crasher for PR22929.
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class Base {
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virtual void VariadicFunction(...);
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};
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class Derived : public virtual Base {
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virtual void VariadicFunction(...);
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};
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void Derived::VariadicFunction(...) { }
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// CHECK: define{{.*}} void @_ZN7Derived16VariadicFunctionEz({{.*}} !dbg ![[SP:[0-9]+]]
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// CHECK: ret void, !dbg ![[LOC:[0-9]+]]
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// CHECK: define{{.*}} void @_ZT{{.+}}N7Derived16VariadicFunctionEz({{.*}} !dbg ![[SP_I:[0-9]+]]
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// CHECK: ret void, !dbg ![[LOC_I:[0-9]+]]
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//
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// CHECK: ![[SP]] = distinct !DISubprogram(name: "VariadicFunction"
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// CHECK: ![[LOC]] = !DILocation({{.*}}scope: ![[SP]])
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// CHECK: ![[SP_I]] = distinct !DISubprogram(name: "VariadicFunction"
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// CHECK: ![[LOC_I]] = !DILocation({{.*}}scope: ![[SP_I]])
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