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 `{{.*}} `.
27 lines
758 B
C++
27 lines
758 B
C++
// REQUIRES: xcore-registered-target
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// RUN: %clang_cc1 -triple xcore-unknown-unknown -fno-signed-char -fno-common -emit-llvm -o - -x c++ %s | FileCheck %s
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// CHECK: target triple = "xcore-unknown-unknown"
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// C++ constants are not placed into the ".cp.rodata" section.
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// CHECK: @cgx = external constant i32
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extern const int cgx;
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int fcgx() { return cgx;}
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// CHECK: @g1 ={{.*}} global i32 0, align 4
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int g1;
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// CHECK: @cg1 ={{.*}} constant i32 0, align 4
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extern const int cg1 = 0;
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// Regression test for a bug in lib/CodeGen/CodeGenModule.cpp which called
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// getLanguageLinkage() via a null 'VarDecl*'. This was an XCore specific
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// conditional call to GV->setSection(".cp.rodata").
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class C {
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public:
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~C(){};
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};
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C c;
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// CHECK: "frame-pointer"="none"
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