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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.
56 lines
1.7 KiB
C
56 lines
1.7 KiB
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 %t1.pch %S/Inputs/chain-external-defs1.h
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// RUN: %clang_cc1 -triple x86_64-apple-darwin9 -emit-pch -o %t2.pch %S/Inputs/chain-external-defs2.h -include-pch %t1.pch
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// RUN: %clang_cc1 -triple x86_64-apple-darwin9 -include-pch %t2.pch -emit-llvm -o %t %s
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// RUN: echo FINI >> %t
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// RUN: FileCheck -input-file=%t -check-prefix=Z %s
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// RUN: FileCheck -input-file=%t -check-prefix=XA %s
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// RUN: FileCheck -input-file=%t -check-prefix=YA %s
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// RUN: FileCheck -input-file=%t -check-prefix=XB %s
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// RUN: FileCheck -input-file=%t -check-prefix=YB %s
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// RUN: FileCheck -input-file=%t -check-prefix=AA %s
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// RUN: FileCheck -input-file=%t -check-prefix=AB %s
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// RUN: FileCheck -input-file=%t -check-prefix=AC %s
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// RUN: FileCheck -input-file=%t -check-prefix=S %s
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// Z-NOT: @z
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// XA: @x ={{.*}} global i32 0
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// XA-NOT: @x ={{.*}} global i32 0
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// YA: @y ={{.*}} global i32 0
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// YA-NOT: @y ={{.*}} global i32 0
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// XB: @x2 ={{.*}} global i32 19
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// XB-NOT: @x2 ={{.*}} global i32 19
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int x2 = 19;
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// YB: @y2 ={{.*}} global i32 18
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// YB-NOT: @y2 ={{.*}} global i32 18
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int y2 = 18;
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// AA: @incomplete_array ={{.*}} global [1 x i32]
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// AA-NOT: @incomplete_array ={{.*}} global [1 x i32]
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// AB: @incomplete_array2 ={{.*}} global [17 x i32]
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// AB-NOT: @incomplete_array2 ={{.*}} global [17 x i32]
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int incomplete_array2[17];
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// AC: @incomplete_array3 ={{.*}} global [1 x i32]
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// AC-NOT: @incomplete_array3 ={{.*}} global [1 x i32]
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int incomplete_array3[];
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// S: @s ={{.*}} global %struct.S
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// S-NOT: @s ={{.*}} global %struct.S
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struct S {
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int x, y;
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};
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// Z: FINI
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// XA: FINI
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// YA: FINI
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// XB: FINI
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// YB: FINI
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// AA: FINI
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// AB: FINI
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// AC: FINI
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// S: FINI
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