66 lines · cpp
1// RUN: %clang_cc1 -triple x86_64-apple-darwin -emit-llvm -o - %s | FileCheck %s2// RUN: %clang_cc1 -triple x86_64-apple-darwin -emit-llvm -o - %s -fexperimental-new-constant-interpreter | FileCheck %s3 4// C++-specific tests for __builtin_object_size5 6int gi;7 8// CHECK-LABEL: define{{.*}} void @_Z5test1v()9void test1() {10 // Guaranteeing that our cast removal logic doesn't break more interesting11 // cases.12 struct A { int a; };13 struct B { int b; };14 struct C: public A, public B {};15 16 C c;17 18 // CHECK: store i32 819 gi = __builtin_object_size(&c, 0);20 // CHECK: store i32 821 gi = __builtin_object_size((A*)&c, 0);22 // CHECK: store i32 423 gi = __builtin_object_size((B*)&c, 0);24 25 // CHECK: store i32 826 gi = __builtin_object_size((char*)&c, 0);27 // CHECK: store i32 828 gi = __builtin_object_size((char*)(A*)&c, 0);29 // CHECK: store i32 430 gi = __builtin_object_size((char*)(B*)&c, 0);31}32 33// CHECK-LABEL: define{{.*}} void @_Z5test2v()34void test2() {35 struct A { char buf[16]; };36 struct B : A {};37 struct C { int i; B bs[1]; } *c;38 39 // CHECK: call i64 @llvm.objectsize.i64.p0(ptr %{{.*}}, i1 false, i1 true, i1 false)40 gi = __builtin_object_size(&c->bs[0], 0);41 // CHECK: call i64 @llvm.objectsize.i64.p0(ptr %{{.*}}, i1 false, i1 true, i1 false)42 gi = __builtin_object_size(&c->bs[0], 1);43 // CHECK: call i64 @llvm.objectsize.i64.p0(ptr %{{.*}}, i1 true, i1 true, i1 false)44 gi = __builtin_object_size(&c->bs[0], 2);45 // CHECK: store i32 1646 gi = __builtin_object_size(&c->bs[0], 3);47 48 // CHECK: call i64 @llvm.objectsize.i64.p0(ptr %{{.*}}, i1 false, i1 true, i1 false)49 gi = __builtin_object_size((A*)&c->bs[0], 0);50 // CHECK: store i32 1651 gi = __builtin_object_size((A*)&c->bs[0], 1);52 // CHECK: call i64 @llvm.objectsize.i64.p0(ptr %{{.*}}, i1 true, i1 true, i1 false)53 gi = __builtin_object_size((A*)&c->bs[0], 2);54 // CHECK: store i32 1655 gi = __builtin_object_size((A*)&c->bs[0], 3);56 57 // CHECK: call i64 @llvm.objectsize.i64.p0(ptr %{{.*}}, i1 false, i1 true, i1 false)58 gi = __builtin_object_size(&c->bs[0].buf[0], 0);59 // CHECK: store i32 1660 gi = __builtin_object_size(&c->bs[0].buf[0], 1);61 // CHECK: call i64 @llvm.objectsize.i64.p0(ptr %{{.*}}, i1 true, i1 true, i1 false)62 gi = __builtin_object_size(&c->bs[0].buf[0], 2);63 // CHECK: store i32 1664 gi = __builtin_object_size(&c->bs[0].buf[0], 3);65}66