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TheRock/compiler/amd-llvm/clang/test/CodeGenCXX/lvalue-bitcasts.cpp
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derek.holloway 7502bf64a4
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Flatten subprojects into a single base monorepo
2026-09-02 16:34:47 -07:00

137 lines
3.5 KiB
C++

// RUN: %clang_cc1 -triple x86_64-apple-darwin10.0.0 -emit-llvm -o - %s | FileCheck %s
struct X { int i; float f; };
struct Y { X x; };
// CHECK-LABEL: define{{.*}} void @_Z21reinterpret_cast_testRiRfR1X
void reinterpret_cast_test(int &ir, float &fr, X &xr) {
// CHECK: load ptr, ptr
// CHECK: load i32, ptr
ir = reinterpret_cast<int&>(fr);
// CHECK: load
// CHECK: load i32, ptr
ir = reinterpret_cast<int&>(xr);
// CHECK: load ptr
// CHECK: load float, ptr
fr = reinterpret_cast<float&>(ir);
// CHECK: load
// CHECK: load float, ptr
fr = reinterpret_cast<float&>(xr);
// CHECK: load ptr, ptr
// CHECK: call void @llvm.memcpy.p0.p0.i64
xr = reinterpret_cast<X&>(ir);
// CHECK: load ptr, ptr
// CHECK: call void @llvm.memcpy.p0.p0.i64
xr = reinterpret_cast<X&>(fr);
_Complex float cf;
_Complex float &cfr = cf;
// CHECK: load ptr, ptr
// CHECK: load float, ptr
// CHECK: load float, ptr
cfr = reinterpret_cast<_Complex float&>(ir);
// CHECK: load ptr, ptr
// CHECK: load float, ptr
// CHECK: load float, ptr
cfr = reinterpret_cast<_Complex float&>(fr);
// CHECK: load float, ptr
// CHECK: load float, ptr
cfr = reinterpret_cast<_Complex float&>(xr);
// CHECK: ret void
}
// CHECK-LABEL: define{{.*}} void @_Z6c_castRiRfR1X
void c_cast(int &ir, float &fr, X &xr) {
// CHECK: load ptr, ptr
// CHECK: load i32, ptr
ir = (int&)fr;
// CHECK: load
// CHECK: load i32, ptr
ir = (int&)xr;
// CHECK: load ptr
// CHECK: load float, ptr
fr = (float&)ir;
// CHECK: load
// CHECK: load float, ptr
fr = (float&)xr;
// CHECK: load ptr, ptr
// CHECK: call void @llvm.memcpy.p0.p0.i64
xr = (X&)ir;
// CHECK: load ptr, ptr
// CHECK: call void @llvm.memcpy.p0.p0.i64
xr = (X&)fr;
_Complex float cf;
_Complex float &cfr = cf;
// CHECK: load ptr, ptr
// CHECK: load float, ptr
// CHECK: load float, ptr
cfr = (_Complex float&)ir;
// CHECK: load ptr, ptr
// CHECK: load float, ptr
// CHECK: load float, ptr
cfr = (_Complex float&)fr;
// CHECK: load float, ptr
// CHECK: load float, ptr
cfr = (_Complex float&)xr;
// CHECK: ret void
}
// CHECK-LABEL: define{{.*}} void @_Z15functional_castRiRfR1X
void functional_cast(int &ir, float &fr, X &xr) {
typedef int &intref;
typedef float &floatref;
typedef X &Xref;
// CHECK: load ptr, ptr
// CHECK: load i32, ptr
ir = intref(fr);
// CHECK: load
// CHECK: load i32, ptr
ir = intref(xr);
// CHECK: load ptr
// CHECK: load float, ptr
fr = floatref(ir);
// CHECK: load
// CHECK: load float, ptr
fr = floatref(xr);
// CHECK: load ptr, ptr
// CHECK: call void @llvm.memcpy.p0.p0.i64
xr = Xref(ir);
// CHECK: load ptr, ptr
// CHECK: call void @llvm.memcpy.p0.p0.i64
xr = Xref(fr);
typedef _Complex float &complex_float_ref;
_Complex float cf;
_Complex float &cfr = cf;
// CHECK: load ptr, ptr
// CHECK: load float, ptr
// CHECK: load float, ptr
cfr = complex_float_ref(ir);
// CHECK: load ptr, ptr
// CHECK: load float, ptr
// CHECK: load float, ptr
cfr = complex_float_ref(fr);
// CHECK: load float, ptr
// CHECK: load float, ptr
cfr = complex_float_ref(xr);
// CHECK: ret void
}
namespace PR6437 {
struct in_addr {};
void copy( const struct in_addr &new_addr ) {
int addr = (int&)new_addr;
}
}
namespace PR7593 {
void foo(double &X, char *A) {
X = reinterpret_cast<double&>(A[4]);
}
}
namespace PR7344 {
void serialize_annotatable_id( void*& id )
{
unsigned long l_id = (unsigned long&)id;
}
}