// RUN: %clang_cc1 -triple riscv32 -emit-llvm %s -o - \
// RUN:   | FileCheck -check-prefixes=ILP32,ILP32-ILP32F,ILP32-ILP32F-ILP32D %s
// RUN: %clang_cc1 -triple riscv32 -target-feature +f -target-abi ilp32f -emit-llvm %s -o - \
// RUN:   | FileCheck -check-prefixes=ILP32F,ILP32-ILP32F,ILP32F-ILP32D,ILP32-ILP32F-ILP32D %s
// RUN: %clang_cc1 -triple riscv32 -target-feature +f -target-feature +d -target-abi ilp32d -emit-llvm %s -o - \
// RUN:   | FileCheck -check-prefixes=ILP32D,ILP32F-ILP32D,ILP32-ILP32F-ILP32D %s

// RUN: %clang_cc1 -triple riscv64 -emit-llvm %s -o - \
// RUN:   | FileCheck -check-prefixes=LP64,LP64-LP64F,LP64-LP64F-LP64D %s
// RUN: %clang_cc1 -triple riscv64 -target-feature +f -target-abi lp64f -emit-llvm %s -o - \
// RUN:   | FileCheck -check-prefixes=LP64F,LP64-LP64F,LP64F-LP64D,LP64-LP64F-LP64D %s
// RUN: %clang_cc1 -triple riscv64 -target-feature +f -target-feature +d -target-abi lp64d -emit-llvm %s -o - \
// RUN:   | FileCheck -check-prefixes=LP64D,LP64F-LP64D,LP64-LP64F-LP64D %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 RISC-V ABI rules.

struct parent1_int32_s {
  int32_t i1;
};

struct child1_int32_s : parent1_int32_s {
  int32_t i2;
};

// ILP32-ILP32F-ILP32D-LABEL: define{{.*}} [2 x i32] @_Z30int32_int32_struct_inheritance14child1_int32_s([2 x i32] %a.coerce)
// LP64-LP64F-LP64D-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;
};

// ILP32: define{{.*}} [2 x i32] @_Z30int32_float_struct_inheritance14child2_float_s([2 x i32] %a.coerce)
// ILP32F-ILP32D: define{{.*}} { i32, float } @_Z30int32_float_struct_inheritance14child2_float_s(i32 %0, float %1)
// LP64: define{{.*}} i64 @_Z30int32_float_struct_inheritance14child2_float_s(i64 %a.coerce)
// LP64F-LP64D: 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;
};

// ILP32-ILP32F-ILP32D-LABEL: define{{.*}} void @_Z30float_int64_struct_inheritance14child3_int64_s(ptr noalias sret(%struct.child3_int64_s)
// LP64-LABEL: define{{.*}} [2 x i64] @_Z30float_int64_struct_inheritance14child3_int64_s([2 x i64] %a.coerce)
// LP64F-LP64D-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;
};

// ILP32-ILP32F-LABEL: define{{.*}} void @_Z32double_double_struct_inheritance15child4_double_s(ptr noalias sret(%struct.child4_double_s)
// ILP32D-LABEL: define{{.*}} { double, double } @_Z32double_double_struct_inheritance15child4_double_s(double %0, double %1)
// LP64-LP64F-LABEL: define{{.*}} [2 x i64] @_Z32double_double_struct_inheritance15child4_double_s([2 x i64] %a.coerce)
// LP64D-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;
};

// ILP32-ILP32F-ILP32D-LABEL: define{{.*}} void @_ZN16child5_virtual_sC1EOS_(ptr noundef nonnull align 4 dereferenceable(8) %this, ptr noundef nonnull align 4 dereferenceable(8) %0)
// LP64-LP64F-LP64D-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 {
};

// ILP32: define{{.*}} [2 x i32] @_Z38float_float_diamond_struct_inheritance14grandchild_6_s([2 x i32] %a.coerce)
// ILP32F-ILP64D: define{{.*}} { float, float } @_Z38float_float_diamond_struct_inheritance14grandchild_6_s(float %0, float %1)
// LP64: define{{.*}} i64 @_Z38float_float_diamond_struct_inheritance14grandchild_6_s(i64 %a.coerce)
// LP64F-LP64D: 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;
}

// NOTE: These prefixes are unused. Do not add tests below this line:
// ILP32F: {{.*}}
// LP64F: {{.*}}