mirror of
https://github.com/intel/llvm.git
synced 2026-01-18 07:57:36 +08:00
e974c65774
* Add cir.objsize operation to CIR dialect * Add lowering for cir.objsize operation to LLVM dialect * Add codegen for __builtin_object_size and __builtin_dynamic_object_size Note that this does not support the pass_object_size attribute yet. --------- Co-authored-by: Andy Kaylor <akaylor@nvidia.com>
109 lines
3.9 KiB
C++
109 lines
3.9 KiB
C++
// RUN: %clang_cc1 -triple x86_64-unknown-linux-gnu -fclangir -emit-cir %s -o %t.cir
|
|
// RUN: FileCheck --input-file=%t.cir %s --check-prefix=CIR
|
|
// RUN: %clang_cc1 -triple x86_64-unknown-linux-gnu -fclangir -emit-llvm %s -o %t-cir.ll
|
|
// RUN: FileCheck --input-file=%t-cir.ll %s --check-prefix=LLVM
|
|
// RUN: %clang_cc1 -triple x86_64-unknown-linux-gnu -emit-llvm %s -o %t.ll
|
|
// RUN: FileCheck --input-file=%t.ll %s --check-prefix=OGCG
|
|
|
|
// C++-specific tests for __builtin_object_size
|
|
|
|
int gi;
|
|
|
|
// CIR-LABEL: @_Z5test1v
|
|
// LLVM-LABEL: define{{.*}} void @_Z5test1v()
|
|
// OGCG-LABEL: define{{.*}} void @_Z5test1v()
|
|
void test1() {
|
|
// Guaranteeing that our cast removal logic doesn't break more interesting
|
|
// cases.
|
|
struct A { int a; };
|
|
struct B { int b; };
|
|
struct C: public A, public B {};
|
|
|
|
C c;
|
|
|
|
// CIR: cir.const #cir.int<8>
|
|
// LLVM: store i32 8
|
|
// OGCG: store i32 8
|
|
gi = __builtin_object_size(&c, 0);
|
|
// CIR: cir.const #cir.int<8>
|
|
// LLVM: store i32 8
|
|
// OGCG: store i32 8
|
|
gi = __builtin_object_size((A*)&c, 0);
|
|
// CIR: cir.const #cir.int<4>
|
|
// LLVM: store i32 4
|
|
// OGCG: store i32 4
|
|
gi = __builtin_object_size((B*)&c, 0);
|
|
|
|
// CIR: cir.const #cir.int<8>
|
|
// LLVM: store i32 8
|
|
// OGCG: store i32 8
|
|
gi = __builtin_object_size((char*)&c, 0);
|
|
// CIR: cir.const #cir.int<8>
|
|
// LLVM: store i32 8
|
|
// OGCG: store i32 8
|
|
gi = __builtin_object_size((char*)(A*)&c, 0);
|
|
// CIR: cir.const #cir.int<4>
|
|
// LLVM: store i32 4
|
|
// OGCG: store i32 4
|
|
gi = __builtin_object_size((char*)(B*)&c, 0);
|
|
}
|
|
|
|
// CIR-LABEL: @_Z5test2v()
|
|
// LLVM-LABEL: define{{.*}} void @_Z5test2v()
|
|
// OGCG-LABEL: define{{.*}} void @_Z5test2v()
|
|
void test2() {
|
|
struct A { char buf[16]; };
|
|
struct B : A {};
|
|
struct C { int i; B bs[1]; } *c;
|
|
|
|
// CIR: cir.objsize max nullunknown %{{.+}} : !cir.ptr<!void> -> !u64i
|
|
// LLVM: call i64 @llvm.objectsize.i64.p0(ptr %{{.*}}, i1 false, i1 true, i1 false)
|
|
// OGCG: call i64 @llvm.objectsize.i64.p0(ptr %{{.*}}, i1 false, i1 true, i1 false)
|
|
gi = __builtin_object_size(&c->bs[0], 0);
|
|
// CIR: cir.objsize max nullunknown %{{.+}} : !cir.ptr<!void> -> !u64i
|
|
// LLVM: call i64 @llvm.objectsize.i64.p0(ptr %{{.*}}, i1 false, i1 true, i1 false)
|
|
// OGCG: call i64 @llvm.objectsize.i64.p0(ptr %{{.*}}, i1 false, i1 true, i1 false)
|
|
gi = __builtin_object_size(&c->bs[0], 1);
|
|
// CIR: cir.objsize min nullunknown %{{.+}} : !cir.ptr<!void> -> !u64i
|
|
// LLVM: call i64 @llvm.objectsize.i64.p0(ptr %{{.*}}, i1 true, i1 true, i1 false)
|
|
// OGCG: call i64 @llvm.objectsize.i64.p0(ptr %{{.*}}, i1 true, i1 true, i1 false)
|
|
gi = __builtin_object_size(&c->bs[0], 2);
|
|
// CIR: cir.const #cir.int<16>
|
|
// LLVM: store i32 16
|
|
// OGCG: store i32 16
|
|
gi = __builtin_object_size(&c->bs[0], 3);
|
|
|
|
// NYI: DerivedToBase cast
|
|
// gi = __builtin_object_size((A*)&c->bs[0], 0);
|
|
|
|
// CIR: cir.const #cir.int<16>
|
|
// LLVM: store i32 16
|
|
// OGCG: store i32 16
|
|
gi = __builtin_object_size((A*)&c->bs[0], 1);
|
|
|
|
// NYI: DerivedToBase cast
|
|
// gi = __builtin_object_size((A*)&c->bs[0], 2);
|
|
|
|
// CIR: cir.const #cir.int<16>
|
|
// LLVM: store i32 16
|
|
// OGCG: store i32 16
|
|
gi = __builtin_object_size((A*)&c->bs[0], 3);
|
|
|
|
// CIR: cir.objsize max nullunknown %{{.+}} : !cir.ptr<!void> -> !u64i
|
|
// LLVM: call i64 @llvm.objectsize.i64.p0(ptr %{{.*}}, i1 false, i1 true, i1 false)
|
|
// OGCG: call i64 @llvm.objectsize.i64.p0(ptr %{{.*}}, i1 false, i1 true, i1 false)
|
|
gi = __builtin_object_size(&c->bs[0].buf[0], 0);
|
|
// CIR: cir.const #cir.int<16>
|
|
// LLVM: store i32 16
|
|
// OGCG: store i32 16
|
|
gi = __builtin_object_size(&c->bs[0].buf[0], 1);
|
|
// CIR: cir.objsize min nullunknown %{{.+}} : !cir.ptr<!void> -> !u64i
|
|
// LLVM: call i64 @llvm.objectsize.i64.p0(ptr %{{.*}}, i1 true, i1 true, i1 false)
|
|
// OGCG: call i64 @llvm.objectsize.i64.p0(ptr %{{.*}}, i1 true, i1 true, i1 false)
|
|
gi = __builtin_object_size(&c->bs[0].buf[0], 2);
|
|
// CIR: cir.const #cir.int<16>
|
|
// LLVM: store i32 16
|
|
// OGCG: store i32 16
|
|
gi = __builtin_object_size(&c->bs[0].buf[0], 3);
|
|
}
|