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.
17 lines
405 B
C
17 lines
405 B
C
// RUN: %clang_cc1 -triple x86_64-apple-macosx10.9.0 -emit-llvm -O1 -mdisable-tail-calls -o - < %s | FileCheck %s
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typedef struct List {
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struct List *next;
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int data;
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} List;
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// CHECK-LABEL: define{{.*}} %struct.List* @find
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List *find(List *head, int data) {
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if (!head)
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return 0;
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if (head->data == data)
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return head;
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// CHECK: call %struct.List* @find
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return find(head->next, data);
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}
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