413111952a
We might get into bad situations where we try to embed the signature of an inner lambda into an outer lambda which cannot work: the inner lambda wants to embed the name of the outer lambda! Instead, omit the return type for lambdas. This fixes PR26105. N.B. While we are here, make lambdas nested within functions use an artificial scope so that they can get demangled. llvm-svn: 258003
146 lines
4.5 KiB
C++
146 lines
4.5 KiB
C++
// RUN: %clang_cc1 -std=c++11 -fblocks -fms-extensions %s -triple=x86_64-windows-msvc -emit-llvm \
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// RUN: -o - -mconstructor-aliases -fcxx-exceptions -fexceptions | \
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// RUN: FileCheck %s --check-prefix=CHECK --check-prefix=CXXEH
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// RUN: %clang_cc1 -std=c++11 -fblocks -fms-extensions %s -triple=x86_64-windows-msvc -emit-llvm \
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// RUN: -o - -mconstructor-aliases -O1 -disable-llvm-optzns | \
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// RUN: FileCheck %s --check-prefix=CHECK --check-prefix=NOCXX
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extern "C" unsigned long _exception_code();
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extern "C" void might_throw();
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struct HasCleanup {
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HasCleanup();
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~HasCleanup();
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int padding;
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};
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extern "C" void use_cxx() {
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HasCleanup x;
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might_throw();
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}
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// Make sure we use __CxxFrameHandler3 for C++ EH.
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// CXXEH-LABEL: define void @use_cxx()
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// CXXEH-SAME: personality i8* bitcast (i32 (...)* @__CxxFrameHandler3 to i8*)
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// CXXEH: call %struct.HasCleanup* @"\01??0HasCleanup@@QEAA@XZ"(%struct.HasCleanup* %{{.*}})
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// CXXEH: invoke void @might_throw()
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// CXXEH: to label %[[cont:[^ ]*]] unwind label %[[lpad:[^ ]*]]
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//
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// CXXEH: [[cont]]
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// CXXEH: call void @"\01??1HasCleanup@@QEAA@XZ"(%struct.HasCleanup* %{{.*}})
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// CXXEH: ret void
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//
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// CXXEH: [[lpad]]
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// CXXEH: cleanuppad
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// CXXEH: call void @"\01??1HasCleanup@@QEAA@XZ"(%struct.HasCleanup* %{{.*}})
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// CXXEH: cleanupret
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// NOCXX-LABEL: define void @use_cxx()
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// NOCXX-NOT: invoke
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// NOCXX: call %struct.HasCleanup* @"\01??0HasCleanup@@QEAA@XZ"(%struct.HasCleanup* %{{.*}})
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// NOCXX-NOT: invoke
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// NOCXX: call void @might_throw()
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// NOCXX-NOT: invoke
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// NOCXX: call void @"\01??1HasCleanup@@QEAA@XZ"(%struct.HasCleanup* %{{.*}})
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// NOCXX-NOT: invoke
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// NOCXX: ret void
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extern "C" void use_seh() {
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__try {
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might_throw();
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} __except(1) {
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}
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}
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// Make sure we use __C_specific_handler for SEH.
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// CHECK-LABEL: define void @use_seh()
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// CHECK-SAME: personality i8* bitcast (i32 (...)* @__C_specific_handler to i8*)
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// CHECK: invoke void @might_throw() #[[NOINLINE:[0-9]+]]
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// CHECK: to label %[[cont:[^ ]*]] unwind label %[[lpad:[^ ]*]]
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//
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// CHECK: [[lpad]]
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// CHECK-NEXT: %[[switch:.*]] = catchswitch within none [label %[[cpad:.*]]] unwind to caller
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//
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// CHECK: [[cpad]]
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// CHECK-NEXT: catchpad within %[[switch]]
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// CHECK: catchret {{.*}} label %[[except:[^ ]*]]
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//
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// CHECK: [[except]]
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// CHECK: br label %[[ret:[^ ]*]]
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//
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// CHECK: [[ret]]
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// CHECK: ret void
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//
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// CHECK: [[cont]]
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// CHECK: br label %[[ret]]
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void use_seh_in_lambda() {
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([]() {
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__try {
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might_throw();
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} __except(1) {
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}
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})();
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HasCleanup x;
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might_throw();
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}
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// CXXEH-LABEL: define void @"\01?use_seh_in_lambda@@YAXXZ"()
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// CXXEH-SAME: personality i8* bitcast (i32 (...)* @__CxxFrameHandler3 to i8*)
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// CXXEH: cleanuppad
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// NOCXX-LABEL: define void @"\01?use_seh_in_lambda@@YAXXZ"()
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// NOCXX-NOT: invoke
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// NOCXX: ret void
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// CHECK-LABEL: define internal void @"\01??R<lambda_0>@?0??use_seh_in_lambda@@YAXXZ@QEBA@XZ"(%class.anon* %this)
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// CXXEH-SAME: personality i8* bitcast (i32 (...)* @__C_specific_handler to i8*)
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// CHECK: invoke void @might_throw() #[[NOINLINE]]
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// CHECK: catchpad
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static int my_unique_global;
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extern "C" inline void use_seh_in_inline_func() {
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__try {
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might_throw();
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} __except(_exception_code() == 424242) {
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}
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__try {
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might_throw();
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} __finally {
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my_unique_global = 1234;
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}
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}
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void use_inline() {
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use_seh_in_inline_func();
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}
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// CHECK-LABEL: define linkonce_odr void @use_seh_in_inline_func() #{{[0-9]+}} comdat
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// CHECK-SAME: personality i8* bitcast (i32 (...)* @__C_specific_handler to i8*)
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// CHECK: invoke void @might_throw()
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//
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// CHECK: catchpad {{.*}} [i8* bitcast (i32 (i8*, i8*)* @"\01?filt$0@0@use_seh_in_inline_func@@" to i8*)]
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//
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// CHECK: invoke void @might_throw()
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//
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// CHECK: %[[fp:[^ ]*]] = call i8* @llvm.localaddress()
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// CHECK: call void @"\01?fin$0@0@use_seh_in_inline_func@@"(i8 0, i8* %[[fp]])
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// CHECK: ret void
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//
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// CHECK: cleanuppad
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// CHECK: %[[fp:[^ ]*]] = call i8* @llvm.localaddress()
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// CHECK: call void @"\01?fin$0@0@use_seh_in_inline_func@@"(i8 1, i8* %[[fp]])
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// CHECK-LABEL: define internal i32 @"\01?filt$0@0@use_seh_in_inline_func@@"(i8* %exception_pointers, i8* %frame_pointer) #{{[0-9]+}} comdat($use_seh_in_inline_func)
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// CHECK: icmp eq i32 %{{.*}}, 424242
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// CHECK: zext i1 %{{.*}} to i32
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// CHECK: ret i32
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// CHECK-LABEL: define internal void @"\01?fin$0@0@use_seh_in_inline_func@@"(i8 %abnormal_termination, i8* %frame_pointer) #{{[0-9]+}} comdat($use_seh_in_inline_func)
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// CHECK: store i32 1234, i32* @my_unique_global
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// CHECK: attributes #[[NOINLINE]] = { {{.*noinline.*}} }
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