fd739804e0
For a default visibility external linkage definition, dso_local is set for ELF
-fno-pic/-fpie and COFF and Mach-O. Since default clang -cc1 for ELF is similar
to -fpic ("PIC Level" is not set), this nuance causes unneeded binary format differences.
To make emitted IR similar, ELF -cc1 -fpic will default to -fno-semantic-interposition,
which sets dso_local for default visibility external linkage definitions.
To make this flip smooth and enable future (dso_local as definition default),
this patch replaces (function) `define ` with `define{{.*}} `,
(variable/constant/alias) `= ` with `={{.*}} `, or inserts appropriate `{{.*}} `.
37 lines
1.9 KiB
C
37 lines
1.9 KiB
C
// REQUIRES: x86-registered-target
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// RUN: %clang_cc1 -triple x86_64-elf -DCF_BUILDING_CF -DDECL -S -emit-llvm %s -o - | FileCheck %s -check-prefix CHECK-CF-IN-CF-DECL
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// RUN: %clang_cc1 -triple x86_64-elf -DCF_BUILDING_CF -DDEFN -S -emit-llvm %s -o - | FileCheck %s -check-prefix CHECK-CF-IN-CF-DEFN
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// RUN: %clang_cc1 -triple x86_64-elf -S -emit-llvm %s -o - | FileCheck %s -check-prefix CHECK-CF
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// RUN: %clang_cc1 -triple x86_64-elf -DEXTERN -S -emit-llvm %s -o - | FileCheck %s -check-prefix CHECK-CF-EXTERN
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// RUN: %clang_cc1 -Os -triple x86_64-elf -DCF_BUILDING_CF -DDECL -S -emit-llvm %s -o - | FileCheck %s -check-prefix CHECK-CF-IN-CF-DECL
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// RUN: %clang_cc1 -Os -triple x86_64-elf -DCF_BUILDING_CF -DDEFN -S -emit-llvm %s -o - | FileCheck %s -check-prefix CHECK-CF-IN-CF-DEFN
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// RUN: %clang_cc1 -Os -triple x86_64-elf -S -emit-llvm %s -o - | FileCheck %s -check-prefix CHECK-CF
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// RUN: %clang_cc1 -Os -triple x86_64-elf -DEXTERN -S -emit-llvm %s -o - | FileCheck %s -check-prefix CHECK-CF-EXTERN
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#if defined(CF_BUILDING_CF)
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#if defined(DECL)
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extern long __CFConstantStringClassReference[];
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#elif defined(DEFN)
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long __CFConstantStringClassReference[32];
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#endif
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#else
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#if defined(EXTERN)
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extern long __CFConstantStringClassReference[];
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#else
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long __CFConstantStringClassReference[];
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#endif
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#endif
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typedef struct __CFString *CFStringRef;
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const CFStringRef string = (CFStringRef)__builtin___CFStringMakeConstantString("string");
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// CHECK-CF-IN-CF-DECL: @__CFConstantStringClassReference = external global [0 x i32]
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// CHECK-CF-IN-CF-DEFN: @__CFConstantStringClassReference ={{.*}} global [32 x i64] zeroinitializer, align 16
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// CHECK-CF: @__CFConstantStringClassReference ={{.*}} global [1 x i64] zeroinitializer, align 8
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// CHECK-CF-EXTERN: @__CFConstantStringClassReference = external global [0 x i32]
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// CHECK-CF-EXTERN: @.str = private unnamed_addr constant [7 x i8] c"string\00", section ".rodata", align 1
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