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// RUN: %clang_cc1 -no-opaque-pointers -std=c++11 -fblocks -fms-extensions %s -triple=x86_64-windows-msvc -emit-llvm \
// RUN: -o - -mconstructor-aliases -fcxx-exceptions -fexceptions | \
// RUN: FileCheck %s --check-prefix=CHECK --check-prefix=CXXEH
// RUN: %clang_cc1 -no-opaque-pointers -std=c++11 -fblocks -fms-extensions %s -triple=x86_64-windows-msvc -emit-llvm \
// RUN: -o - -mconstructor-aliases -O1 -disable-llvm-passes | \
// RUN: FileCheck %s --check-prefix=CHECK --check-prefix=NOCXX
extern "C" unsigned long _exception_code();
extern "C" void might_throw();
struct HasCleanup {
HasCleanup();
~HasCleanup();
int padding;
};
extern "C" void use_cxx() {
HasCleanup x;
might_throw();
}
// Make sure we use __CxxFrameHandler3 for C++ EH.
// CXXEH-LABEL: define dso_local void @use_cxx()
// CXXEH-SAME: personality i8* bitcast (i32 (...)* @__CxxFrameHandler3 to i8*)
// CXXEH: call noundef %struct.HasCleanup* @"??0HasCleanup@@QEAA@XZ"(%struct.HasCleanup* {{[^,]*}} %{{.*}})
// CXXEH: invoke void @might_throw()
// CXXEH: to label %[[cont:[^ ]*]] unwind label %[[lpad:[^ ]*]]
//
// CXXEH: [[cont]]
// CXXEH: call void @"??1HasCleanup@@QEAA@XZ"(%struct.HasCleanup* {{[^,]*}} %{{.*}})
// CXXEH: ret void
//
// CXXEH: [[lpad]]
// CXXEH: cleanuppad
// CXXEH: call void @"??1HasCleanup@@QEAA@XZ"(%struct.HasCleanup* {{[^,]*}} %{{.*}})
// CXXEH: cleanupret
// NOCXX-LABEL: define dso_local void @use_cxx()
// NOCXX-NOT: invoke
// NOCXX: call noundef %struct.HasCleanup* @"??0HasCleanup@@QEAA@XZ"(%struct.HasCleanup* {{[^,]*}} %{{.*}})
// NOCXX-NOT: invoke
// NOCXX: call void @might_throw()
// NOCXX-NOT: invoke
// NOCXX: call void @"??1HasCleanup@@QEAA@XZ"(%struct.HasCleanup* {{[^,]*}} %{{.*}})
// NOCXX-NOT: invoke
// NOCXX: ret void
extern "C" void use_seh() {
__try {
might_throw();
} __except(1) {
}
}
// Make sure we use __C_specific_handler for SEH.
// CHECK-LABEL: define dso_local void @use_seh()
// CHECK-SAME: personality i8* bitcast (i32 (...)* @__C_specific_handler to i8*)
// CHECK: invoke void @might_throw() #[[NOINLINE:[0-9]+]]
// CHECK: to label %[[cont:[^ ]*]] unwind label %[[lpad:[^ ]*]]
//
// CHECK: [[lpad]]
// CHECK-NEXT: %[[switch:.*]] = catchswitch within none [label %[[cpad:.*]]] unwind to caller
//
// CHECK: [[cpad]]
// CHECK-NEXT: catchpad within %[[switch]]
// CHECK: catchret {{.*}} label %[[except:[^ ]*]]
//
// CHECK: [[except]]
// CHECK: br label %[[ret:[^ ]*]]
//
// CHECK: [[ret]]
// CHECK: ret void
//
// CHECK: [[cont]]
// CHECK: br label %[[ret]]
extern "C" void nested_finally() {
__try {
might_throw();
} __finally {
__try {
might_throw();
} __finally {
}
}
}
// CHECK-LABEL: define dso_local void @nested_finally() #{{[0-9]+}}
// CHECK-SAME: personality i8* bitcast (i32 (...)* @__C_specific_handler to i8*)
// CHECK: invoke void @might_throw()
// CHECK: call void @"?fin$0@0@nested_finally@@"(i8 noundef 1, i8* {{.*}})
// CHECK-LABEL: define internal void @"?fin$0@0@nested_finally@@"
// CHECK-SAME: personality i8* bitcast (i32 (...)* @__C_specific_handler to i8*)
// CHECK: invoke void @might_throw()
// CHECK: call void @"?fin$1@0@nested_finally@@"(i8 noundef 1, i8* {{.*}})
void use_seh_in_lambda() {
([]() {
__try {
might_throw();
} __except(1) {
}
})();
HasCleanup x;
might_throw();
}
// CXXEH-LABEL: define dso_local void @"?use_seh_in_lambda@@YAXXZ"()
// CXXEH-SAME: personality i8* bitcast (i32 (...)* @__CxxFrameHandler3 to i8*)
// CXXEH: cleanuppad
// NOCXX-LABEL: define dso_local void @"?use_seh_in_lambda@@YAXXZ"()
// NOCXX-NOT: invoke
// NOCXX: ret void
// CHECK-LABEL: define internal void @"??R<lambda_0>@?0??use_seh_in_lambda@@YAXXZ@QEBA@XZ"(%class.anon* {{[^,]*}} %this)
// CXXEH-SAME: personality i8* bitcast (i32 (...)* @__C_specific_handler to i8*)
// CHECK: invoke void @might_throw() #[[NOINLINE]]
// CHECK: catchpad
static int my_unique_global;
extern "C" inline void use_seh_in_inline_func() {
__try {
might_throw();
} __except(_exception_code() == 424242) {
}
__try {
might_throw();
} __finally {
my_unique_global = 1234;
}
}
void use_inline() {
use_seh_in_inline_func();
}
// CHECK-LABEL: define linkonce_odr dso_local void @use_seh_in_inline_func() #{{[0-9]+}}
// CHECK-SAME: personality i8* bitcast (i32 (...)* @__C_specific_handler to i8*)
// CHECK: invoke void @might_throw()
//
// CHECK: catchpad {{.*}} [i8* bitcast (i32 (i8*, i8*)* @"?filt$0@0@use_seh_in_inline_func@@" to i8*)]
//
// CHECK: invoke void @might_throw()
//
// CHECK: %[[fp:[^ ]*]] = call i8* @llvm.localaddress()
// CHECK: call void @"?fin$0@0@use_seh_in_inline_func@@"(i8 noundef 0, i8* noundef %[[fp]])
// CHECK: ret void
//
// CHECK: cleanuppad
// CHECK: %[[fp:[^ ]*]] = call i8* @llvm.localaddress()
// CHECK: call void @"?fin$0@0@use_seh_in_inline_func@@"(i8 noundef 1, i8* noundef %[[fp]])
// CHECK-LABEL: define internal noundef i32 @"?filt$0@0@use_seh_in_inline_func@@"(i8* noundef %exception_pointers, i8* noundef %frame_pointer) #{{[0-9]+}}
// CHECK: icmp eq i32 %{{.*}}, 424242
// CHECK: zext i1 %{{.*}} to i32
// CHECK: ret i32
// CHECK-LABEL: define internal void @"?fin$0@0@use_seh_in_inline_func@@"(i8 noundef %abnormal_termination, i8* noundef %frame_pointer) #{{[0-9]+}}
// CHECK: store i32 1234, i32* @my_unique_global
// CHECK: attributes #[[NOINLINE]] = { {{.*noinline.*}} }
void seh_in_noexcept() noexcept { __try {} __finally {} }
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