| // RUN: %clang_cc1 -triple loongarch64 -target-feature +f -target-feature +d -target-abi lp64d \ |
| // RUN: -emit-llvm %s -o - | FileCheck %s |
| |
| #include <stdint.h> |
| |
| /// Ensure that fields inherited from a parent struct are treated in the same |
| /// way as fields directly in the child for the purposes of LoongArch ABI rules. |
| |
| struct parent1_int32_s { |
| int32_t i1; |
| }; |
| |
| struct child1_int32_s : parent1_int32_s { |
| int32_t i2; |
| }; |
| |
| // CHECK-LABEL: define{{.*}} i64 @_Z30int32_int32_struct_inheritance14child1_int32_s(i64 %a.coerce) |
| struct child1_int32_s int32_int32_struct_inheritance(struct child1_int32_s a) { |
| return a; |
| } |
| |
| struct parent2_int32_s { |
| int32_t i1; |
| }; |
| |
| struct child2_float_s : parent2_int32_s { |
| float f1; |
| }; |
| |
| // CHECK-LABEL: define{{.*}} { i32, float } @_Z30int32_float_struct_inheritance14child2_float_s(i32 %0, float %1) |
| struct child2_float_s int32_float_struct_inheritance(struct child2_float_s a) { |
| return a; |
| } |
| |
| struct parent3_float_s { |
| float f1; |
| }; |
| |
| struct child3_int64_s : parent3_float_s { |
| int64_t i1; |
| }; |
| |
| // CHECK-LABEL: define{{.*}} { float, i64 } @_Z30float_int64_struct_inheritance14child3_int64_s(float %0, i64 %1) |
| struct child3_int64_s float_int64_struct_inheritance(struct child3_int64_s a) { |
| return a; |
| } |
| |
| struct parent4_double_s { |
| double d1; |
| }; |
| |
| struct child4_double_s : parent4_double_s { |
| double d1; |
| }; |
| |
| // CHECK-LABEL: define{{.*}} { double, double } @_Z32double_double_struct_inheritance15child4_double_s(double %0, double %1) |
| struct child4_double_s double_double_struct_inheritance(struct child4_double_s a) { |
| return a; |
| } |
| |
| /// When virtual inheritance is used, the resulting struct isn't eligible for |
| /// passing in registers. |
| |
| struct parent5_virtual_s { |
| int32_t i1; |
| }; |
| |
| struct child5_virtual_s : virtual parent5_virtual_s { |
| float f1; |
| }; |
| |
| // CHECK-LABEL: define{{.*}} void @_ZN16child5_virtual_sC1EOS_(ptr noundef nonnull align 8 dereferenceable(12) %this, ptr noundef nonnull align 8 dereferenceable(12) %0) |
| struct child5_virtual_s int32_float_virtual_struct_inheritance(struct child5_virtual_s a) { |
| return a; |
| } |
| |
| /// Check for correct lowering in the presence of diamond inheritance. |
| |
| struct parent6_float_s { |
| float f1; |
| }; |
| |
| struct child6a_s : parent6_float_s { |
| }; |
| |
| struct child6b_s : parent6_float_s { |
| }; |
| |
| struct grandchild_6_s : child6a_s, child6b_s { |
| }; |
| |
| // CHECK-LABEL: define{{.*}} { float, float } @_Z38float_float_diamond_struct_inheritance14grandchild_6_s(float %0, float %1) |
| struct grandchild_6_s float_float_diamond_struct_inheritance(struct grandchild_6_s a) { |
| return a; |
| } |