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.
19 lines
495 B
C
19 lines
495 B
C
// RUN: %clang_cc1 -triple x86_64-apple-macosx10.10.0 -emit-llvm -Oz -o - %s | FileCheck %s
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// CHECK: define{{.*}} i32 @foo2(i32 %a) local_unnamed_addr [[ATTRS2:#[0-9]+]] {
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// CHECK: define{{.*}} i32 @foo1(i32 %a) local_unnamed_addr [[ATTRS1:#[0-9]+]] {
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int foo1(int);
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int foo2(int a) {
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return foo1(a + 2);
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}
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__attribute__((optnone))
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int foo1(int a) {
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return a + 1;
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}
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// CHECK: attributes [[ATTRS2]] = { {{.*}}optsize{{.*}} }
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// CHECK: attributes [[ATTRS1]] = { {{.*}}optnone{{.*}} }
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