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llvm-project/clang/test/CodeGenCXX/aix-static-init.cpp

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[AIX][Frontend] Static init implementation for AIX considering no priority 1. Provides no piroirity supoort && disables three priority related attributes: init_priority, ctor attr, dtor attr; 2. '-qunique' in XL compiler equivalent behavior of emitting sinit and sterm functions name using getUniqueModuleId() util function in LLVM (currently no support for InternalLinkage and WeakODRLinkage symbols); 3. Add testcases to emit IR sample with __sinit80000000, __dtor, and __sterm80000000; 4. Temporarily side-steps the need to implement the functionality of llvm.global_ctors and llvm.global_dtors arrays. The uses of that functionality in this patch (with respect to the name of the functions involved) are not representative of how the functionality will be used once implemented. Differential Revision: https://reviews.llvm.org/D74166
2020-05-28 05:04:43 +08:00
// RUN: %clang_cc1 -triple powerpc-ibm-aix-xcoff -S -emit-llvm -x c++ \
[AIX] Default AIX to using -fno-use-cxa-atexit On AIX, we use __atexit to register dtor functions rather than __cxa_atexit. So a driver change is needed to default AIX to using -fno-use-cxa-atexit. Windows platform does not uses __cxa_atexit either. Following its precedent, we remove the assertion for when -fuse-cxa-atexit is specified by the user, do not produce a message and silently default to -fno-use-cxa-atexit behavior. Differential Revision: https://reviews.llvm.org/D82136
2020-06-19 07:52:34 +08:00
// RUN: -std=c++2a < %s | \
[AIX][Frontend] Static init implementation for AIX considering no priority 1. Provides no piroirity supoort && disables three priority related attributes: init_priority, ctor attr, dtor attr; 2. '-qunique' in XL compiler equivalent behavior of emitting sinit and sterm functions name using getUniqueModuleId() util function in LLVM (currently no support for InternalLinkage and WeakODRLinkage symbols); 3. Add testcases to emit IR sample with __sinit80000000, __dtor, and __sterm80000000; 4. Temporarily side-steps the need to implement the functionality of llvm.global_ctors and llvm.global_dtors arrays. The uses of that functionality in this patch (with respect to the name of the functions involved) are not representative of how the functionality will be used once implemented. Differential Revision: https://reviews.llvm.org/D74166
2020-05-28 05:04:43 +08:00
// RUN: FileCheck --check-prefixes=CHECK,CHECK32 %s
// RUN: %clang_cc1 -triple powerpc64-ibm-aix-xcoff -S -emit-llvm -x c++ \
[AIX] Default AIX to using -fno-use-cxa-atexit On AIX, we use __atexit to register dtor functions rather than __cxa_atexit. So a driver change is needed to default AIX to using -fno-use-cxa-atexit. Windows platform does not uses __cxa_atexit either. Following its precedent, we remove the assertion for when -fuse-cxa-atexit is specified by the user, do not produce a message and silently default to -fno-use-cxa-atexit behavior. Differential Revision: https://reviews.llvm.org/D82136
2020-06-19 07:52:34 +08:00
// RUN: -std=c++2a < %s | \
[AIX][Frontend] Static init implementation for AIX considering no priority 1. Provides no piroirity supoort && disables three priority related attributes: init_priority, ctor attr, dtor attr; 2. '-qunique' in XL compiler equivalent behavior of emitting sinit and sterm functions name using getUniqueModuleId() util function in LLVM (currently no support for InternalLinkage and WeakODRLinkage symbols); 3. Add testcases to emit IR sample with __sinit80000000, __dtor, and __sterm80000000; 4. Temporarily side-steps the need to implement the functionality of llvm.global_ctors and llvm.global_dtors arrays. The uses of that functionality in this patch (with respect to the name of the functions involved) are not representative of how the functionality will be used once implemented. Differential Revision: https://reviews.llvm.org/D74166
2020-05-28 05:04:43 +08:00
// RUN: FileCheck --check-prefixes=CHECK,CHECK64 %s
namespace test1 {
struct Test1 {
Test1();
~Test1();
} t1, t2;
} // namespace test1
namespace test2 {
int foo() { return 3; }
int x = foo();
} // namespace test2
namespace test3 {
struct Test3 {
constexpr Test3() {};
~Test3() {};
};
constinit Test3 t;
} // namespace test3
namespace test4 {
struct Test4 {
Test4();
~Test4();
};
void f() {
static Test4 staticLocal;
}
} // namespace test4
// CHECK: @llvm.global_ctors = appending global [1 x { i32, void ()*, i8* }] [{ i32, void ()*, i8* } { i32 65535, void ()* @__sinit80000000_clang_1145401da454a7baad10bfe313c46638, i8* null }]
// CHECK: @llvm.global_dtors = appending global [1 x { i32, void ()*, i8* }] [{ i32, void ()*, i8* } { i32 65535, void ()* @__sterm80000000_clang_1145401da454a7baad10bfe313c46638, i8* null }]
// CHECK: define internal void @__cxx_global_var_init() [[ATTR:#[0-9]+]] {
// CHECK: entry:
// CHECK: call void @_ZN5test15Test1C1Ev(%"struct.test1::Test1"* @_ZN5test12t1E)
// CHECK: %0 = call i32 @atexit(void ()* @__dtor__ZN5test12t1E)
// CHECK: ret void
// CHECK: }
// CHECK: define internal void @__dtor__ZN5test12t1E() [[ATTR:#[0-9]+]] {
// CHECK: entry:
// CHECK: call void @_ZN5test15Test1D1Ev(%"struct.test1::Test1"* @_ZN5test12t1E)
// CHECK: ret void
// CHECK: }
// CHECK: declare i32 @atexit(void ()*)
// CHECK: define internal void @__finalize__ZN5test12t1E() [[ATTR:#[0-9]+]] {
// CHECK: entry:
// CHECK: %0 = call i32 @unatexit(void ()* @__dtor__ZN5test12t1E)
// CHECK: %needs_destruct = icmp eq i32 %0, 0
// CHECK: br i1 %needs_destruct, label %destruct.call, label %destruct.end
// CHECK: destruct.call:
// CHECK: call void @__dtor__ZN5test12t1E()
// CHECK: br label %destruct.end
// CHECK: destruct.end:
// CHECK: ret void
// CHECK: }
// CHECK: declare i32 @unatexit(void ()*)
// CHECK: define internal void @__cxx_global_var_init.1() [[ATTR:#[0-9]+]] {
// CHECK: entry:
// CHECK: call void @_ZN5test15Test1C1Ev(%"struct.test1::Test1"* @_ZN5test12t2E)
// CHECK: %0 = call i32 @atexit(void ()* @__dtor__ZN5test12t2E)
// CHECK: ret void
// CHECK: }
// CHECK: define internal void @__dtor__ZN5test12t2E() [[ATTR:#[0-9]+]] {
// CHECK: entry:
// CHECK: call void @_ZN5test15Test1D1Ev(%"struct.test1::Test1"* @_ZN5test12t2E)
// CHECK: ret void
// CHECK: }
// CHECK: define internal void @__finalize__ZN5test12t2E() [[ATTR:#[0-9]+]] {
// CHECK: entry:
// CHECK: %0 = call i32 @unatexit(void ()* @__dtor__ZN5test12t2E)
// CHECK: %needs_destruct = icmp eq i32 %0, 0
// CHECK: br i1 %needs_destruct, label %destruct.call, label %destruct.end
// CHECK: destruct.call:
// CHECK: call void @__dtor__ZN5test12t2E()
// CHECK: br label %destruct.end
// CHECK: destruct.end:
// CHECK: ret void
// CHECK: }
// CHECK: define internal void @__cxx_global_var_init.2() [[ATTR:#[0-9]+]] {
// CHECK: entry:
// CHECK32: %call = call i32 @_ZN5test23fooEv()
// CHECK64: %call = call signext i32 @_ZN5test23fooEv()
// CHECK: store i32 %call, i32* @_ZN5test21xE
// CHECK: ret void
// CHECK: }
// CHECK: define internal void @__cxx_global_var_init.3() [[ATTR:#[0-9]+]] {
// CHECK: entry:
// CHECK: %0 = call i32 @atexit(void ()* @__dtor__ZN5test31tE)
// CHECK: ret void
// CHECK: }
// CHECK: define internal void @__dtor__ZN5test31tE() [[ATTR:#[0-9]+]] {
// CHECK: entry:
// CHECK: call void @_ZN5test35Test3D1Ev(%"struct.test3::Test3"* @_ZN5test31tE)
// CHECK: ret void
// CHECK: }
// CHECK: define internal void @__finalize__ZN5test31tE() [[ATTR:#[0-9]+]] {
// CHECK: entry:
// CHECK: %0 = call i32 @unatexit(void ()* @__dtor__ZN5test31tE)
// CHECK: %needs_destruct = icmp eq i32 %0, 0
// CHECK: br i1 %needs_destruct, label %destruct.call, label %destruct.end
// CHECK: destruct.call:
// CHECK: call void @__dtor__ZN5test31tE()
// CHECK: br label %destruct.end
// CHECK: destruct.end:
// CHECK: ret void
// CHECK: }
// CHECK: define void @_ZN5test41fEv() [[ATTR:#[0-9]+]] {
// CHECK: entry:
// CHECK: %0 = load atomic i8, i8* bitcast (i64* @_ZGVZN5test41fEvE11staticLocal to i8*) acquire
// CHECK: %guard.uninitialized = icmp eq i8 %0, 0
// CHECK: br i1 %guard.uninitialized, label %init.check, label %init.end
// CHECK: init.check:
// CHECK: %1 = call i32 @__cxa_guard_acquire(i64* @_ZGVZN5test41fEvE11staticLocal)
// CHECK: %tobool = icmp ne i32 %1, 0
// CHECK: br i1 %tobool, label %init, label %init.end
// CHECK: init:
// CHECK: call void @_ZN5test45Test4C1Ev(%"struct.test4::Test4"* @_ZZN5test41fEvE11staticLocal)
// CHECK: %2 = call i32 @atexit(void ()* @__dtor__ZZN5test41fEvE11staticLocal)
// CHECK: call void @__cxa_guard_release(i64* @_ZGVZN5test41fEvE11staticLocal)
// CHECK: br label %init.end
// CHECK: init.end:
// CHECK: ret void
// CHECK: }
// CHECK: define internal void @__dtor__ZZN5test41fEvE11staticLocal() [[ATTR:#[0-9]+]] {
// CHECK: entry:
// CHECK: call void @_ZN5test45Test4D1Ev(%"struct.test4::Test4"* @_ZZN5test41fEvE11staticLocal)
// CHECK: ret void
// CHECK: }
// CHECK: define internal void @__finalize__ZZN5test41fEvE11staticLocal() [[ATTR:#[0-9]+]] {
// CHECK: entry:
// CHECK: %0 = call i32 @unatexit(void ()* @__dtor__ZZN5test41fEvE11staticLocal)
// CHECK: %needs_destruct = icmp eq i32 %0, 0
// CHECK: br i1 %needs_destruct, label %destruct.call, label %destruct.end
// CHECK: destruct.call:
// CHECK: call void @__dtor__ZZN5test41fEvE11staticLocal()
// CHECK: br label %destruct.end
// CHECK: destruct.end:
// CHECK: ret void
// CHECK: }
// CHECK: define void @__sinit80000000_clang_1145401da454a7baad10bfe313c46638() [[ATTR:#[0-9]+]] {
// CHECK: entry:
// CHECK: call void @__cxx_global_var_init()
// CHECK: call void @__cxx_global_var_init.1()
// CHECK: call void @__cxx_global_var_init.2()
// CHECK: call void @__cxx_global_var_init.3()
// CHECK: ret void
// CHECK: }
// CHECK: define void @__sterm80000000_clang_1145401da454a7baad10bfe313c46638() [[ATTR:#[0-9]+]] {
// CHECK: entry:
// CHECK: call void @__finalize__ZZN5test41fEvE11staticLocal()
// CHECK: call void @__finalize__ZN5test31tE()
// CHECK: call void @__finalize__ZN5test12t2E()
// CHECK: call void @__finalize__ZN5test12t1E()
// CHECK: ret void
// CHECK: }