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6b3351792c
For a definition (of most linkage types), dso_local is set for ELF -fno-pic/-fpie
and COFF, but not for Mach-O. This nuance causes unneeded binary format differences.
This patch replaces (function) `define ` with `define{{.*}} `,
(variable/constant/alias) `= ` with `={{.*}} `, or inserts appropriate `{{.*}} `
if there is an explicit linkage.
* Clang will set dso_local for Mach-O, which is currently implied by TargetMachine.cpp. This will make COFF/Mach-O and executable ELF similar.
* Eventually I hope we can make dso_local the textual LLVM IR default (write explicit "dso_preemptable" when applicable) and -fpic ELF will be similar to everything else. This patch helps move toward that goal.
16 lines
338 B
C++
16 lines
338 B
C++
// RUN: %clang_cc1 %s -fblocks -triple x86_64-apple-darwin -std=c++11 -emit-llvm -o - | FileCheck %s
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// REQUIRES: x86-registered-target
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// CHECK: @b ={{.*}} global i32 0,
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// CHECK: define {{.*}}void @{{.*}}test{{.*}}_block_invoke(
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// CHECK: store i32 2, i32* @b,
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// CHECK: ret void
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int b;
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void test() {
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int &a = b;
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^{ a = 2; };
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}
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