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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.
21 lines
650 B
C
21 lines
650 B
C
// REQUIRES: x86-registered-target
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// Test with pch.
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// RUN: %clang_cc1 -triple x86_64-apple-darwin9 -emit-pch -o %t.pch %S/external-defs.h
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// RUN: %clang_cc1 -triple x86_64-apple-darwin9 -include-pch %t.pch -emit-llvm -o %t %s
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// RUN: grep "@x =.* global i32 0" %t | count 1
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// RUN: not grep "@z" %t
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// RUN: grep "@x2 =.* global i32 19" %t | count 1
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int x2 = 19;
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// RUN: grep "@incomplete_array =.* global .*1 x i32" %t | count 1
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// RUN: grep "@incomplete_array2 =.* global .*17 x i32" %t | count 1
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int incomplete_array2[17];
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// RUN: grep "@incomplete_array3 =.* global .*1 x i32" %t | count 1
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int incomplete_array3[];
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struct S {
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int x, y;
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};
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