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.
30 lines
728 B
Plaintext
30 lines
728 B
Plaintext
// RUN: %clang_cc1 -std=c++11 -fblocks -emit-llvm -o - -triple x86_64-apple-darwin11.3 %s | FileCheck %s
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namespace PR12746 {
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// CHECK: define{{.*}} zeroext i1 @_ZN7PR127462f1EPi
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bool f1(int *x) {
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// CHECK: store i8* bitcast (i1 (i8*)* @___ZN7PR127462f1EPi_block_invoke to i8*)
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bool (^outer)() = ^ {
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auto inner = [&]() -> bool {
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return x == 0;
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};
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return inner();
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};
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return outer();
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}
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// CHECK: define internal zeroext i1 @___ZN7PR127462f1EPi_block_invoke
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// CHECK: call zeroext i1 @"_ZZZN7PR127462f1EPiEUb_ENK3$_0clEv"
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bool f2(int *x) {
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auto outer = [&]() -> bool {
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bool (^inner)() = ^ {
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return x == 0;
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};
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return inner();
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};
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return outer();
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}
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}
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