llvm-project/clang/test/CodeGen/dllexport.c

116 lines
4.7 KiB
C

// RUN: %clang_cc1 -triple i686-windows-msvc -emit-llvm -std=c11 -O0 -o - %s | FileCheck %s
// RUN: %clang_cc1 -triple x86_64-windows-msvc -emit-llvm -std=c11 -O0 -o - %s | FileCheck %s
// RUN: %clang_cc1 -triple i686-windows-gnu -emit-llvm -std=c11 -O0 -o - %s | FileCheck %s
// RUN: %clang_cc1 -triple x86_64-windows-gnu -emit-llvm -std=c11 -O0 -o - %s | FileCheck %s
//===----------------------------------------------------------------------===//
// Globals
//===----------------------------------------------------------------------===//
// Declarations are not exported.
// CHECK-NOT: @ExternGlobalDecl
__declspec(dllexport) extern int ExternGlobalDecl;
// dllexport implies a definition.
// CHECK-DAG: @GlobalDef = common dllexport global i32 0, align 4
__declspec(dllexport) int GlobalDef;
// Export definition.
// CHECK-DAG: @GlobalInit = dllexport global i32 1, align 4
__declspec(dllexport) int GlobalInit = 1;
// Declare, then export definition.
// CHECK-DAG: @GlobalDeclInit = dllexport global i32 1, align 4
__declspec(dllexport) extern int GlobalDeclInit;
int GlobalDeclInit = 1;
// Redeclarations
// CHECK-DAG: @GlobalRedecl1 = common dllexport global i32 0, align 4
__declspec(dllexport) extern int GlobalRedecl1;
__declspec(dllexport) int GlobalRedecl1;
// CHECK-DAG: @GlobalRedecl2 = common dllexport global i32 0, align 4
__declspec(dllexport) extern int GlobalRedecl2;
int GlobalRedecl2;
//===----------------------------------------------------------------------===//
// Functions
//===----------------------------------------------------------------------===//
// Declarations are not exported.
// Export function definition.
// CHECK-DAG: define dllexport void @def()
__declspec(dllexport) void def(void) {}
// Export inline function.
// CHECK-DAG: define weak_odr dllexport void @inlineFunc()
// CHECK-DAG: define weak_odr dllexport void @externInlineFunc()
__declspec(dllexport) inline void inlineFunc(void) {}
__declspec(dllexport) inline void externInlineFunc(void) {}
extern void externInlineFunc(void);
// Redeclarations
// CHECK-DAG: define dllexport void @redecl1()
__declspec(dllexport) void redecl1(void);
__declspec(dllexport) void redecl1(void) {}
// CHECK-DAG: define dllexport void @redecl2()
__declspec(dllexport) void redecl2(void);
void redecl2(void) {}
//===----------------------------------------------------------------------===//
// Precedence
//===----------------------------------------------------------------------===//
// dllexport takes precedence over the dllimport if both are specified.
// CHECK-DAG: @PrecedenceGlobal1A = common dllexport global i32 0, align 4
// CHECK-DAG: @PrecedenceGlobal1B = common dllexport global i32 0, align 4
__attribute__((dllimport, dllexport)) int PrecedenceGlobal1A;
__declspec(dllimport) __declspec(dllexport) int PrecedenceGlobal1B;
// CHECK-DAG: @PrecedenceGlobal2A = common dllexport global i32 0, align 4
// CHECK-DAG: @PrecedenceGlobal2B = common dllexport global i32 0, align 4
__attribute__((dllexport, dllimport)) int PrecedenceGlobal2A;
__declspec(dllexport) __declspec(dllimport) int PrecedenceGlobal2B;
// CHECK-DAG: @PrecedenceGlobalRedecl1 = dllexport global i32 0, align 4
__declspec(dllexport) extern int PrecedenceGlobalRedecl1;
__declspec(dllimport) int PrecedenceGlobalRedecl1 = 0;
// CHECK-DAG: @PrecedenceGlobalRedecl2 = common dllexport global i32 0, align 4
__declspec(dllimport) extern int PrecedenceGlobalRedecl2;
__declspec(dllexport) int PrecedenceGlobalRedecl2;
// CHECK-DAG: @PrecedenceGlobalMixed1 = dllexport global i32 1, align 4
__attribute__((dllexport)) extern int PrecedenceGlobalMixed1;
__declspec(dllimport) int PrecedenceGlobalMixed1 = 1;
// CHECK-DAG: @PrecedenceGlobalMixed2 = common dllexport global i32 0, align 4
__attribute__((dllimport)) extern int PrecedenceGlobalMixed2;
__declspec(dllexport) int PrecedenceGlobalMixed2;
// CHECK-DAG: define dllexport void @precedence1A()
// CHECK-DAG: define dllexport void @precedence1B()
void __attribute__((dllimport, dllexport)) precedence1A(void) {}
void __declspec(dllimport) __declspec(dllexport) precedence1B(void) {}
// CHECK-DAG: define dllexport void @precedence2A()
// CHECK-DAG: define dllexport void @precedence2B()
void __attribute__((dllexport, dllimport)) precedence2A(void) {}
void __declspec(dllexport) __declspec(dllimport) precedence2B(void) {}
// CHECK-DAG: define dllexport void @precedenceRedecl1()
void __declspec(dllimport) precedenceRedecl1(void);
void __declspec(dllexport) precedenceRedecl1(void) {}
// CHECK-DAG: define dllexport void @precedenceRedecl2()
void __declspec(dllexport) precedenceRedecl2(void);
void __declspec(dllimport) precedenceRedecl2(void) {}