forked from OSchip/llvm-project
107 lines
3.7 KiB
C++
107 lines
3.7 KiB
C++
// RUN: %clang_cc1 -fexceptions -triple x86_64-apple-darwin -std=c++0x -emit-llvm %s -o %t.ll
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// RUN: FileCheck --input-file=%t.ll %s
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struct test1_D {
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double d;
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} d1;
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void test1() {
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throw d1;
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}
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// CHECK: define void @_Z5test1v()
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// CHECK: [[FREEVAR:%.*]] = alloca i1
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// CHECK-NEXT: [[EXNOBJVAR:%.*]] = alloca i8*
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// CHECK-NEXT: store i1 false, i1* [[FREEVAR]]
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// CHECK-NEXT: [[EXNOBJ:%.*]] = call i8* @__cxa_allocate_exception(i64 8)
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// CHECK-NEXT: store i8* [[EXNOBJ]], i8** [[EXNOBJVAR]]
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// CHECK-NEXT: store i1 true, i1* [[FREEVAR]]
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// CHECK-NEXT: [[EXN:%.*]] = bitcast i8* [[EXNOBJ]] to [[DSTAR:%[^*]*\*]]
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// CHECK-NEXT: [[EXN2:%.*]] = bitcast [[DSTAR]] [[EXN]] to i8*
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// CHECK-NEXT: call void @llvm.memcpy.p0i8.p0i8.i64(i8* [[EXN2]], i8* bitcast ([[DSTAR]] @d1 to i8*), i64 8, i32 8, i1 false)
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// CHECK-NEXT: store i1 false, i1* [[FREEVAR]]
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// CHECK-NEXT: call void @__cxa_throw(i8* [[EXNOBJ]], i8* bitcast (%0* @_ZTI7test1_D to i8*), i8* null) noreturn
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// CHECK-NEXT: unreachable
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struct test2_D {
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test2_D(const test2_D&o);
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test2_D();
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virtual void bar() { }
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int i; int j;
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} d2;
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void test2() {
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throw d2;
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}
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// CHECK: define void @_Z5test2v()
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// CHECK: [[FREEVAR:%.*]] = alloca i1
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// CHECK-NEXT: [[EXNOBJVAR:%.*]] = alloca i8*
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// CHECK-NEXT: store i1 false, i1* [[FREEVAR]]
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// CHECK-NEXT: [[EXNOBJ:%.*]] = call i8* @__cxa_allocate_exception(i64 16)
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// CHECK-NEXT: store i8* [[EXNOBJ]], i8** [[EXNOBJVAR]]
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// CHECK-NEXT: store i1 true, i1* [[FREEVAR]]
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// CHECK-NEXT: [[EXN:%.*]] = bitcast i8* [[EXNOBJ]] to [[DSTAR:%[^*]*\*]]
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// CHECK-NEXT: invoke void @_ZN7test2_DC1ERKS_([[DSTAR]] [[EXN]], [[DSTAR]] @d2)
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// CHECK-NEXT: to label %[[CONT:.*]] unwind label %{{.*}}
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// : [[CONT]]: (can't check this in Release-Asserts builds)
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// CHECK: store i1 false, i1* [[FREEVAR]]
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// CHECK-NEXT: call void @__cxa_throw(i8* [[EXNOBJ]], i8* bitcast (%{{.*}}* @_ZTI7test2_D to i8*), i8* null) noreturn
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// CHECK-NEXT: unreachable
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struct test3_D {
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test3_D() { }
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test3_D(volatile test3_D&o);
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virtual void bar();
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};
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void test3() {
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throw (volatile test3_D *)0;
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}
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// CHECK: define void @_Z5test3v()
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// CHECK: [[FREEVAR:%.*]] = alloca i1
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// CHECK-NEXT: [[EXNOBJVAR:%.*]] = alloca i8*
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// CHECK-NEXT: store i1 false, i1* [[FREEVAR]]
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// CHECK-NEXT: [[EXNOBJ:%.*]] = call i8* @__cxa_allocate_exception(i64 8)
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// CHECK-NEXT: store i8* [[EXNOBJ]], i8** [[EXNOBJVAR]]
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// CHECK-NEXT: store i1 true, i1* [[FREEVAR]]
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// CHECK-NEXT: [[EXN:%.*]] = bitcast i8* [[EXNOBJ]] to [[DSS:%[^*]*\*]]*
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// CHECK-NEXT: store [[DSS]] null, [[DSS]]* [[EXN]]
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// CHECK-NEXT: store i1 false, i1* [[FREEVAR]]
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// CHECK-NEXT: call void @__cxa_throw(i8* [[EXNOBJ]], i8* bitcast (%1* @_ZTIPV7test3_D to i8*), i8* null) noreturn
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// CHECK-NEXT: unreachable
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void test4() {
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throw;
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}
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// CHECK: define void @_Z5test4v()
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// CHECK: call void @__cxa_rethrow() noreturn
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// CHECK-NEXT: unreachable
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// rdar://problem/7696549
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namespace test5 {
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struct A {
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A();
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A(const A&);
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~A();
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};
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void test() {
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try { throw A(); } catch (A &x) {}
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}
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// CHECK: define void @_ZN5test54testEv()
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// CHECK: [[EXNOBJ:%.*]] = call i8* @__cxa_allocate_exception(i64 1)
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// CHECK: [[EXNCAST:%.*]] = bitcast i8* [[EXNOBJ]] to [[A:%[^*]*]]*
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// CHECK-NEXT: invoke void @_ZN5test51AC1Ev([[A]]* [[EXNCAST]])
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// CHECK: invoke void @__cxa_throw(i8* [[EXNOBJ]], i8* bitcast ({{%.*}}* @_ZTIN5test51AE to i8*), i8* bitcast (void ([[A]]*)* @_ZN5test51AD1Ev to i8*)) noreturn
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// CHECK-NEXT: to label {{%.*}} unwind label %[[HANDLER:[^ ]*]]
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// : [[HANDLER]]: (can't check this in Release-Asserts builds)
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// CHECK: {{%.*}} = call i32 @llvm.eh.typeid.for(i8* bitcast ({{%.*}}* @_ZTIN5test51AE to i8*))
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}
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