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.
21 lines
855 B
C
21 lines
855 B
C
// REQUIRES: x86-registered-target
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// RUN: %clang -target i386-apple-darwin10 -flto -S -g %s -o - | FileCheck %s
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// CHECK: @main.localstatic = internal global i32 0, align 4, !dbg [[L:![0-9]+]]
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// CHECK: @global ={{.*}} global i32 0, align 4, !dbg [[G:![0-9]+]]
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int global;
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int main() {
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static int localstatic;
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return 0;
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}
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// CHECK: [[L]] = !DIGlobalVariableExpression(var: [[LV:.*]], expr: !DIExpression())
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// CHECK: [[LV]] = distinct !DIGlobalVariable(name: "localstatic"
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// CHECK-NOT: linkageName:
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// CHECK-SAME: line: 9,
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// CHECK: [[G]] = !DIGlobalVariableExpression(var: [[GV:.*]], expr: !DIExpression())
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// CHECK: [[GV]] = distinct !DIGlobalVariable(name: "global"
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// CHECK-NOT: linkageName:
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// CHECK-SAME: line: 7,
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