6 changes: 4 additions & 2 deletions clang/test/CodeGen/riscv32-ilp32-ilp32f-abi.c
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// RUN: %clang_cc1 -triple riscv32 -emit-llvm %s -o - | FileCheck %s
// RUN: %clang_cc1 -triple riscv32 -target-feature +f -target-abi ilp32f -emit-llvm %s -o - \
// RUN: | FileCheck %s

// This file contains test cases that will have the same output for the ilp32
// and ilp32f ABIs.
Expand Down Expand Up @@ -35,8 +37,8 @@ int f_scalar_stack_1(int32_t a, int64_t b, int32_t c, double d, long double e,
// the presence of large return values that consume a register due to the need
// to pass a pointer.

// CHECK-LABEL: define void @f_scalar_stack_2(%struct.large* noalias sret %agg.result, i32 %a, i64 %b, i64 %c, fp128 %d, i8 zeroext %e, i8 %f, i8 %g)
struct large f_scalar_stack_2(int32_t a, int64_t b, int64_t c, long double d,
// CHECK-LABEL: define void @f_scalar_stack_2(%struct.large* noalias sret %agg.result, i32 %a, i64 %b, double %c, fp128 %d, i8 zeroext %e, i8 %f, i8 %g)
struct large f_scalar_stack_2(int32_t a, int64_t b, double c, long double d,
uint8_t e, int8_t f, uint8_t g) {
return (struct large){a, e, f, g};
}
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4 changes: 4 additions & 0 deletions clang/test/CodeGen/riscv32-ilp32-ilp32f-ilp32d-abi.c
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// RUN: %clang_cc1 -triple riscv32 -emit-llvm %s -o - | FileCheck %s
// RUN: %clang_cc1 -triple riscv32 -emit-llvm -fforce-enable-int128 %s -o - \
// RUN: | FileCheck %s -check-prefixes=CHECK,CHECK-FORCEINT128
// RUN: %clang_cc1 -triple riscv32 -target-feature +f -target-abi ilp32f -emit-llvm %s -o - \
// RUN: | FileCheck %s
// RUN: %clang_cc1 -triple riscv32 -target-feature +d -target-abi ilp32d -emit-llvm %s -o - \
// RUN: | FileCheck %s

// This file contains test cases that will have the same output for the ilp32,
// ilp32f, and ilp32d ABIs.
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282 changes: 282 additions & 0 deletions clang/test/CodeGen/riscv32-ilp32d-abi.c
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// RUN: %clang_cc1 -triple riscv32 -target-feature +d -target-abi ilp32d -emit-llvm %s -o - \
// RUN: | FileCheck %s

#include <stdint.h>

// Verify that the tracking of used GPRs and FPRs works correctly by checking
// that small integers are sign/zero extended when passed in registers.

// Doubles are passed in FPRs, so argument 'i' will be passed zero-extended
// because it will be passed in a GPR.

// CHECK: define void @f_fpr_tracking(double %a, double %b, double %c, double %d, double %e, double %f, double %g, double %h, i8 zeroext %i)
void f_fpr_tracking(double a, double b, double c, double d, double e, double f,
double g, double h, uint8_t i) {}

// Check that fp, fp+fp, and int+fp structs are lowered correctly. These will
// be passed in FPR, FPR+FPR, or GPR+FPR regs if sufficient registers are
// available the widths are <= XLEN and FLEN, and should be expanded to
// separate arguments in IR. They are passed by the same rules for returns,
// but will be lowered to simple two-element structs if necessary (as LLVM IR
// functions cannot return multiple values).

// A struct containing just one floating-point real is passed as though it
// were a standalone floating-point real.

struct double_s { double f; };

// CHECK: define void @f_double_s_arg(double)
void f_double_s_arg(struct double_s a) {}

// CHECK: define double @f_ret_double_s()
struct double_s f_ret_double_s() {
return (struct double_s){1.0};
}

// A struct containing a double and any number of zero-width bitfields is
// passed as though it were a standalone floating-point real.

struct zbf_double_s { int : 0; double f; };
struct zbf_double_zbf_s { int : 0; double f; int : 0; };

// CHECK: define void @f_zbf_double_s_arg(double)
void f_zbf_double_s_arg(struct zbf_double_s a) {}

// CHECK: define double @f_ret_zbf_double_s()
struct zbf_double_s f_ret_zbf_double_s() {
return (struct zbf_double_s){1.0};
}

// CHECK: define void @f_zbf_double_zbf_s_arg(double)
void f_zbf_double_zbf_s_arg(struct zbf_double_zbf_s a) {}

// CHECK: define double @f_ret_zbf_double_zbf_s()
struct zbf_double_zbf_s f_ret_zbf_double_zbf_s() {
return (struct zbf_double_zbf_s){1.0};
}

// Check that structs containing two floating point values (FLEN <= width) are
// expanded provided sufficient FPRs are available.

struct double_double_s { double f; double g; };
struct double_float_s { double f; float g; };

// CHECK: define void @f_double_double_s_arg(double, double)
void f_double_double_s_arg(struct double_double_s a) {}

// CHECK: define { double, double } @f_ret_double_double_s()
struct double_double_s f_ret_double_double_s() {
return (struct double_double_s){1.0, 2.0};
}

// CHECK: define void @f_double_float_s_arg(double, float)
void f_double_float_s_arg(struct double_float_s a) {}

// CHECK: define { double, float } @f_ret_double_float_s()
struct double_float_s f_ret_double_float_s() {
return (struct double_float_s){1.0, 2.0};
}

// CHECK: define void @f_double_double_s_arg_insufficient_fprs(float %a, double %b, double %c, double %d, double %e, double %f, double %g, %struct.double_double_s* %h)
void f_double_double_s_arg_insufficient_fprs(float a, double b, double c, double d,
double e, double f, double g, struct double_double_s h) {}

// Check that structs containing int+double values are expanded, provided
// sufficient FPRs and GPRs are available. The integer components are neither
// sign or zero-extended.

struct double_int8_s { double f; int8_t i; };
struct double_uint8_s { double f; uint8_t i; };
struct double_int32_s { double f; int32_t i; };
struct double_int64_s { double f; int64_t i; };
struct double_int64bf_s { double f; int64_t i : 32; };
struct double_int8_zbf_s { double f; int8_t i; int : 0; };

// CHECK: define void @f_double_int8_s_arg(double, i8)
void f_double_int8_s_arg(struct double_int8_s a) {}

// CHECK: define { double, i8 } @f_ret_double_int8_s()
struct double_int8_s f_ret_double_int8_s() {
return (struct double_int8_s){1.0, 2};
}

// CHECK: define void @f_double_uint8_s_arg(double, i8)
void f_double_uint8_s_arg(struct double_uint8_s a) {}

// CHECK: define { double, i8 } @f_ret_double_uint8_s()
struct double_uint8_s f_ret_double_uint8_s() {
return (struct double_uint8_s){1.0, 2};
}

// CHECK: define void @f_double_int32_s_arg(double, i32)
void f_double_int32_s_arg(struct double_int32_s a) {}

// CHECK: define { double, i32 } @f_ret_double_int32_s()
struct double_int32_s f_ret_double_int32_s() {
return (struct double_int32_s){1.0, 2};
}

// CHECK: define void @f_double_int64_s_arg(%struct.double_int64_s* %a)
void f_double_int64_s_arg(struct double_int64_s a) {}

// CHECK: define void @f_ret_double_int64_s(%struct.double_int64_s* noalias sret %agg.result)
struct double_int64_s f_ret_double_int64_s() {
return (struct double_int64_s){1.0, 2};
}

// CHECK: define void @f_double_int64bf_s_arg(double, i32)
void f_double_int64bf_s_arg(struct double_int64bf_s a) {}

// CHECK: define { double, i32 } @f_ret_double_int64bf_s()
struct double_int64bf_s f_ret_double_int64bf_s() {
return (struct double_int64bf_s){1.0, 2};
}

// The zero-width bitfield means the struct can't be passed according to the
// floating point calling convention.

// CHECK: define void @f_double_int8_zbf_s(double, i8)
void f_double_int8_zbf_s(struct double_int8_zbf_s a) {}

// CHECK: define { double, i8 } @f_ret_double_int8_zbf_s()
struct double_int8_zbf_s f_ret_double_int8_zbf_s() {
return (struct double_int8_zbf_s){1.0, 2};
}

// CHECK: define void @f_double_int8_s_arg_insufficient_gprs(i32 %a, i32 %b, i32 %c, i32 %d, i32 %e, i32 %f, i32 %g, i32 %h, %struct.double_int8_s* %i)
void f_double_int8_s_arg_insufficient_gprs(int a, int b, int c, int d, int e,
int f, int g, int h, struct double_int8_s i) {}

// CHECK: define void @f_struct_double_int8_insufficient_fprs(float %a, double %b, double %c, double %d, double %e, double %f, double %g, double %h, %struct.double_int8_s* %i)
void f_struct_double_int8_insufficient_fprs(float a, double b, double c, double d,
double e, double f, double g, double h, struct double_int8_s i) {}

// Complex floating-point values or structs containing a single complex
// floating-point value should be passed as if it were an fp+fp struct.

// CHECK: define void @f_doublecomplex(double %a.coerce0, double %a.coerce1)
void f_doublecomplex(double __complex__ a) {}

// CHECK: define { double, double } @f_ret_doublecomplex()
double __complex__ f_ret_doublecomplex() {
return 1.0;
}

struct doublecomplex_s { double __complex__ c; };

// CHECK: define void @f_doublecomplex_s_arg(double, double)
void f_doublecomplex_s_arg(struct doublecomplex_s a) {}

// CHECK: define { double, double } @f_ret_doublecomplex_s()
struct doublecomplex_s f_ret_doublecomplex_s() {
return (struct doublecomplex_s){1.0};
}

// Test single or two-element structs that need flattening. e.g. those
// containing nested structs, doubles in small arrays, zero-length structs etc.

struct doublearr1_s { double a[1]; };

// CHECK: define void @f_doublearr1_s_arg(double)
void f_doublearr1_s_arg(struct doublearr1_s a) {}

// CHECK: define double @f_ret_doublearr1_s()
struct doublearr1_s f_ret_doublearr1_s() {
return (struct doublearr1_s){{1.0}};
}

struct doublearr2_s { double a[2]; };

// CHECK: define void @f_doublearr2_s_arg(double, double)
void f_doublearr2_s_arg(struct doublearr2_s a) {}

// CHECK: define { double, double } @f_ret_doublearr2_s()
struct doublearr2_s f_ret_doublearr2_s() {
return (struct doublearr2_s){{1.0, 2.0}};
}

struct doublearr2_tricky1_s { struct { double f[1]; } g[2]; };

// CHECK: define void @f_doublearr2_tricky1_s_arg(double, double)
void f_doublearr2_tricky1_s_arg(struct doublearr2_tricky1_s a) {}

// CHECK: define { double, double } @f_ret_doublearr2_tricky1_s()
struct doublearr2_tricky1_s f_ret_doublearr2_tricky1_s() {
return (struct doublearr2_tricky1_s){{{{1.0}}, {{2.0}}}};
}

struct doublearr2_tricky2_s { struct {}; struct { double f[1]; } g[2]; };

// CHECK: define void @f_doublearr2_tricky2_s_arg(double, double)
void f_doublearr2_tricky2_s_arg(struct doublearr2_tricky2_s a) {}

// CHECK: define { double, double } @f_ret_doublearr2_tricky2_s()
struct doublearr2_tricky2_s f_ret_doublearr2_tricky2_s() {
return (struct doublearr2_tricky2_s){{}, {{{1.0}}, {{2.0}}}};
}

struct doublearr2_tricky3_s { union {}; struct { double f[1]; } g[2]; };

// CHECK: define void @f_doublearr2_tricky3_s_arg(double, double)
void f_doublearr2_tricky3_s_arg(struct doublearr2_tricky3_s a) {}

// CHECK: define { double, double } @f_ret_doublearr2_tricky3_s()
struct doublearr2_tricky3_s f_ret_doublearr2_tricky3_s() {
return (struct doublearr2_tricky3_s){{}, {{{1.0}}, {{2.0}}}};
}

struct doublearr2_tricky4_s { union {}; struct { struct {}; double f[1]; } g[2]; };

// CHECK: define void @f_doublearr2_tricky4_s_arg(double, double)
void f_doublearr2_tricky4_s_arg(struct doublearr2_tricky4_s a) {}

// CHECK: define { double, double } @f_ret_doublearr2_tricky4_s()
struct doublearr2_tricky4_s f_ret_doublearr2_tricky4_s() {
return (struct doublearr2_tricky4_s){{}, {{{}, {1.0}}, {{}, {2.0}}}};
}

// Test structs that should be passed according to the normal integer calling
// convention.

struct int_double_int_s { int a; double b; int c; };

// CHECK: define void @f_int_double_int_s_arg(%struct.int_double_int_s* %a)
void f_int_double_int_s_arg(struct int_double_int_s a) {}

// CHECK: define void @f_ret_int_double_int_s(%struct.int_double_int_s* noalias sret %agg.result)
struct int_double_int_s f_ret_int_double_int_s() {
return (struct int_double_int_s){1, 2.0, 3};
}

struct int64_double_s { int64_t a; double b; };

// CHECK: define void @f_int64_double_s_arg(%struct.int64_double_s* %a)
void f_int64_double_s_arg(struct int64_double_s a) {}

// CHECK: define void @f_ret_int64_double_s(%struct.int64_double_s* noalias sret %agg.result)
struct int64_double_s f_ret_int64_double_s() {
return (struct int64_double_s){1, 2.0};
}

struct char_char_double_s { char a; char b; double c; };

// CHECK-LABEL: define void @f_char_char_double_s_arg(%struct.char_char_double_s* %a)
void f_char_char_double_s_arg(struct char_char_double_s a) {}

// CHECK: define void @f_ret_char_char_double_s(%struct.char_char_double_s* noalias sret %agg.result)
struct char_char_double_s f_ret_char_char_double_s() {
return (struct char_char_double_s){1, 2, 3.0};
}

// Unions are always passed according to the integer calling convention, even
// if they can only contain a double.

union double_u { double a; };

// CHECK: define void @f_double_u_arg(i64 %a.coerce)
void f_double_u_arg(union double_u a) {}

// CHECK: define i64 @f_ret_double_u()
union double_u f_ret_double_u() {
return (union double_u){1.0};
}
45 changes: 45 additions & 0 deletions clang/test/CodeGen/riscv32-ilp32f-abi.c
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// RUN: %clang_cc1 -triple riscv32 -target-feature +f -target-abi ilp32f -emit-llvm %s -o - \
// RUN: | FileCheck %s

#include <stdint.h>

// Doubles are still passed in GPRs, so the 'e' argument will be anyext as
// GPRs are exhausted.

// CHECK: define void @f_fpr_tracking(double %a, double %b, double %c, double %d, i8 %e)
void f_fpr_tracking(double a, double b, double c, double d, int8_t e) {}

// Lowering for doubles is unnmodified, as 64 > FLEN.

struct double_s { double d; };

// CHECK: define void @f_double_s_arg(i64 %a.coerce)
void f_double_s_arg(struct double_s a) {}

// CHECK: define i64 @f_ret_double_s()
struct double_s f_ret_double_s() {
return (struct double_s){1.0};
}

struct double_double_s { double d; double e; };

// CHECK: define void @f_double_double_s_arg(%struct.double_double_s* %a)
void f_double_double_s_arg(struct double_double_s a) {}

// CHECK: define void @f_ret_double_double_s(%struct.double_double_s* noalias sret %agg.result)
struct double_double_s f_ret_double_double_s() {
return (struct double_double_s){1.0, 2.0};
}

struct double_int8_s { double d; int64_t i; };

struct int_double_s { int a; double b; };

// CHECK: define void @f_int_double_s_arg(%struct.int_double_s* %a)
void f_int_double_s_arg(struct int_double_s a) {}

// CHECK: define void @f_ret_int_double_s(%struct.int_double_s* noalias sret %agg.result)
struct int_double_s f_ret_int_double_s() {
return (struct int_double_s){1, 2.0};
}

275 changes: 275 additions & 0 deletions clang/test/CodeGen/riscv32-ilp32f-ilp32d-abi.c
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// RUN: %clang_cc1 -triple riscv32 -target-feature +f -target-abi ilp32f -emit-llvm %s -o - \
// RUN: | FileCheck %s
// RUN: %clang_cc1 -triple riscv32 -target-feature +d -target-abi ilp32d -emit-llvm %s -o - \
// RUN: | FileCheck %s

#include <stdint.h>

// Verify that the tracking of used GPRs and FPRs works correctly by checking
// that small integers are sign/zero extended when passed in registers.

// Floats are passed in FPRs, so argument 'i' will be passed zero-extended
// because it will be passed in a GPR.

// CHECK: define void @f_fpr_tracking(float %a, float %b, float %c, float %d, float %e, float %f, float %g, float %h, i8 zeroext %i)
void f_fpr_tracking(float a, float b, float c, float d, float e, float f,
float g, float h, uint8_t i) {}

// Check that fp, fp+fp, and int+fp structs are lowered correctly. These will
// be passed in FPR, FPR+FPR, or GPR+FPR regs if sufficient registers are
// available the widths are <= XLEN and FLEN, and should be expanded to
// separate arguments in IR. They are passed by the same rules for returns,
// but will be lowered to simple two-element structs if necessary (as LLVM IR
// functions cannot return multiple values).

// A struct containing just one floating-point real is passed as though it
// were a standalone floating-point real.

struct float_s { float f; };

// CHECK: define void @f_float_s_arg(float)
void f_float_s_arg(struct float_s a) {}

// CHECK: define float @f_ret_float_s()
struct float_s f_ret_float_s() {
return (struct float_s){1.0};
}

// A struct containing a float and any number of zero-width bitfields is
// passed as though it were a standalone floating-point real.

struct zbf_float_s { int : 0; float f; };
struct zbf_float_zbf_s { int : 0; float f; int : 0; };

// CHECK: define void @f_zbf_float_s_arg(float)
void f_zbf_float_s_arg(struct zbf_float_s a) {}

// CHECK: define float @f_ret_zbf_float_s()
struct zbf_float_s f_ret_zbf_float_s() {
return (struct zbf_float_s){1.0};
}

// CHECK: define void @f_zbf_float_zbf_s_arg(float)
void f_zbf_float_zbf_s_arg(struct zbf_float_zbf_s a) {}

// CHECK: define float @f_ret_zbf_float_zbf_s()
struct zbf_float_zbf_s f_ret_zbf_float_zbf_s() {
return (struct zbf_float_zbf_s){1.0};
}

// Check that structs containing two float values (FLEN <= width) are expanded
// provided sufficient FPRs are available.

struct float_float_s { float f; float g; };

// CHECK: define void @f_float_float_s_arg(float, float)
void f_float_float_s_arg(struct float_float_s a) {}

// CHECK: define { float, float } @f_ret_float_float_s()
struct float_float_s f_ret_float_float_s() {
return (struct float_float_s){1.0, 2.0};
}

// CHECK: define void @f_float_float_s_arg_insufficient_fprs(float %a, float %b, float %c, float %d, float %e, float %f, float %g, [2 x i32] %h.coerce)
void f_float_float_s_arg_insufficient_fprs(float a, float b, float c, float d,
float e, float f, float g, struct float_float_s h) {}

// Check that structs containing int+float values are expanded, provided
// sufficient FPRs and GPRs are available. The integer components are neither
// sign or zero-extended.

struct float_int8_s { float f; int8_t i; };
struct float_uint8_s { float f; uint8_t i; };
struct float_int32_s { float f; int32_t i; };
struct float_int64_s { float f; int64_t i; };
struct float_int64bf_s { float f; int64_t i : 32; };
struct float_int8_zbf_s { float f; int8_t i; int : 0; };

// CHECK: define void @f_float_int8_s_arg(float, i8)
void f_float_int8_s_arg(struct float_int8_s a) {}

// CHECK: define { float, i8 } @f_ret_float_int8_s()
struct float_int8_s f_ret_float_int8_s() {
return (struct float_int8_s){1.0, 2};
}

// CHECK: define void @f_float_uint8_s_arg(float, i8)
void f_float_uint8_s_arg(struct float_uint8_s a) {}

// CHECK: define { float, i8 } @f_ret_float_uint8_s()
struct float_uint8_s f_ret_float_uint8_s() {
return (struct float_uint8_s){1.0, 2};
}

// CHECK: define void @f_float_int32_s_arg(float, i32)
void f_float_int32_s_arg(struct float_int32_s a) {}

// CHECK: define { float, i32 } @f_ret_float_int32_s()
struct float_int32_s f_ret_float_int32_s() {
return (struct float_int32_s){1.0, 2};
}

// CHECK: define void @f_float_int64_s_arg(%struct.float_int64_s* %a)
void f_float_int64_s_arg(struct float_int64_s a) {}

// CHECK: define void @f_ret_float_int64_s(%struct.float_int64_s* noalias sret %agg.result)
struct float_int64_s f_ret_float_int64_s() {
return (struct float_int64_s){1.0, 2};
}

// CHECK: define void @f_float_int64bf_s_arg(float, i32)
void f_float_int64bf_s_arg(struct float_int64bf_s a) {}

// CHECK: define { float, i32 } @f_ret_float_int64bf_s()
struct float_int64bf_s f_ret_float_int64bf_s() {
return (struct float_int64bf_s){1.0, 2};
}

// The zero-width bitfield means the struct can't be passed according to the
// floating point calling convention.

// CHECK: define void @f_float_int8_zbf_s(float, i8)
void f_float_int8_zbf_s(struct float_int8_zbf_s a) {}

// CHECK: define { float, i8 } @f_ret_float_int8_zbf_s()
struct float_int8_zbf_s f_ret_float_int8_zbf_s() {
return (struct float_int8_zbf_s){1.0, 2};
}

// CHECK: define void @f_float_int8_s_arg_insufficient_gprs(i32 %a, i32 %b, i32 %c, i32 %d, i32 %e, i32 %f, i32 %g, i32 %h, [2 x i32] %i.coerce)
void f_float_int8_s_arg_insufficient_gprs(int a, int b, int c, int d, int e,
int f, int g, int h, struct float_int8_s i) {}

// CHECK: define void @f_struct_float_int8_insufficient_fprs(float %a, float %b, float %c, float %d, float %e, float %f, float %g, float %h, [2 x i32] %i.coerce)
void f_struct_float_int8_insufficient_fprs(float a, float b, float c, float d,
float e, float f, float g, float h, struct float_int8_s i) {}

// Complex floating-point values or structs containing a single complex
// floating-point value should be passed as if it were an fp+fp struct.

// CHECK: define void @f_floatcomplex(float %a.coerce0, float %a.coerce1)
void f_floatcomplex(float __complex__ a) {}

// CHECK: define { float, float } @f_ret_floatcomplex()
float __complex__ f_ret_floatcomplex() {
return 1.0;
}

struct floatcomplex_s { float __complex__ c; };

// CHECK: define void @f_floatcomplex_s_arg(float, float)
void f_floatcomplex_s_arg(struct floatcomplex_s a) {}

// CHECK: define { float, float } @f_ret_floatcomplex_s()
struct floatcomplex_s f_ret_floatcomplex_s() {
return (struct floatcomplex_s){1.0};
}

// Test single or two-element structs that need flattening. e.g. those
// containing nested structs, floats in small arrays, zero-length structs etc.

struct floatarr1_s { float a[1]; };

// CHECK: define void @f_floatarr1_s_arg(float)
void f_floatarr1_s_arg(struct floatarr1_s a) {}

// CHECK: define float @f_ret_floatarr1_s()
struct floatarr1_s f_ret_floatarr1_s() {
return (struct floatarr1_s){{1.0}};
}

struct floatarr2_s { float a[2]; };

// CHECK: define void @f_floatarr2_s_arg(float, float)
void f_floatarr2_s_arg(struct floatarr2_s a) {}

// CHECK: define { float, float } @f_ret_floatarr2_s()
struct floatarr2_s f_ret_floatarr2_s() {
return (struct floatarr2_s){{1.0, 2.0}};
}

struct floatarr2_tricky1_s { struct { float f[1]; } g[2]; };

// CHECK: define void @f_floatarr2_tricky1_s_arg(float, float)
void f_floatarr2_tricky1_s_arg(struct floatarr2_tricky1_s a) {}

// CHECK: define { float, float } @f_ret_floatarr2_tricky1_s()
struct floatarr2_tricky1_s f_ret_floatarr2_tricky1_s() {
return (struct floatarr2_tricky1_s){{{{1.0}}, {{2.0}}}};
}

struct floatarr2_tricky2_s { struct {}; struct { float f[1]; } g[2]; };

// CHECK: define void @f_floatarr2_tricky2_s_arg(float, float)
void f_floatarr2_tricky2_s_arg(struct floatarr2_tricky2_s a) {}

// CHECK: define { float, float } @f_ret_floatarr2_tricky2_s()
struct floatarr2_tricky2_s f_ret_floatarr2_tricky2_s() {
return (struct floatarr2_tricky2_s){{}, {{{1.0}}, {{2.0}}}};
}

struct floatarr2_tricky3_s { union {}; struct { float f[1]; } g[2]; };

// CHECK: define void @f_floatarr2_tricky3_s_arg(float, float)
void f_floatarr2_tricky3_s_arg(struct floatarr2_tricky3_s a) {}

// CHECK: define { float, float } @f_ret_floatarr2_tricky3_s()
struct floatarr2_tricky3_s f_ret_floatarr2_tricky3_s() {
return (struct floatarr2_tricky3_s){{}, {{{1.0}}, {{2.0}}}};
}

struct floatarr2_tricky4_s { union {}; struct { struct {}; float f[1]; } g[2]; };

// CHECK: define void @f_floatarr2_tricky4_s_arg(float, float)
void f_floatarr2_tricky4_s_arg(struct floatarr2_tricky4_s a) {}

// CHECK: define { float, float } @f_ret_floatarr2_tricky4_s()
struct floatarr2_tricky4_s f_ret_floatarr2_tricky4_s() {
return (struct floatarr2_tricky4_s){{}, {{{}, {1.0}}, {{}, {2.0}}}};
}

// Test structs that should be passed according to the normal integer calling
// convention.

struct int_float_int_s { int a; float b; int c; };

// CHECK: define void @f_int_float_int_s_arg(%struct.int_float_int_s* %a)
void f_int_float_int_s_arg(struct int_float_int_s a) {}

// CHECK: define void @f_ret_int_float_int_s(%struct.int_float_int_s* noalias sret %agg.result)
struct int_float_int_s f_ret_int_float_int_s() {
return (struct int_float_int_s){1, 2.0, 3};
}

struct int64_float_s { int64_t a; float b; };

// CHECK: define void @f_int64_float_s_arg(%struct.int64_float_s* %a)
void f_int64_float_s_arg(struct int64_float_s a) {}

// CHECK: define void @f_ret_int64_float_s(%struct.int64_float_s* noalias sret %agg.result)
struct int64_float_s f_ret_int64_float_s() {
return (struct int64_float_s){1, 2.0};
}

struct char_char_float_s { char a; char b; float c; };

// CHECK-LABEL: define void @f_char_char_float_s_arg([2 x i32] %a.coerce)
void f_char_char_float_s_arg(struct char_char_float_s a) {}

// CHECK: define [2 x i32] @f_ret_char_char_float_s()
struct char_char_float_s f_ret_char_char_float_s() {
return (struct char_char_float_s){1, 2, 3.0};
}

// Unions are always passed according to the integer calling convention, even
// if they can only contain a float.

union float_u { float a; };

// CHECK: define void @f_float_u_arg(i32 %a.coerce)
void f_float_u_arg(union float_u a) {}

// CHECK: define i32 @f_ret_float_u()
union float_u f_ret_float_u() {
return (union float_u){1.0};
}
2 changes: 2 additions & 0 deletions clang/test/CodeGen/riscv64-lp64-lp64f-abi.c
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// RUN: %clang_cc1 -triple riscv64 -emit-llvm %s -o - | FileCheck %s
// RUN: %clang_cc1 -triple riscv64 -target-feature +f -target-abi lp64f -emit-llvm %s -o - \
// RUN: | FileCheck %s

// This file contains test cases that will have the same output for the lp64
// and lp64f ABIs.
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4 changes: 4 additions & 0 deletions clang/test/CodeGen/riscv64-lp64-lp64f-lp64d-abi.c
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// RUN: %clang_cc1 -triple riscv64 -emit-llvm %s -o - | FileCheck %s
// RUN: %clang_cc1 -triple riscv64 -target-feature +f -target-abi lp64f -emit-llvm %s -o - \
// RUN: | FileCheck %s
// RUN: %clang_cc1 -triple riscv64 -target-feature +d -target-abi lp64d -emit-llvm %s -o - \
// RUN: | FileCheck %s

// This file contains test cases that will have the same output for the lp64,
// lp64f, and lp64d ABIs.
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272 changes: 272 additions & 0 deletions clang/test/CodeGen/riscv64-lp64d-abi.c
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// RUN: %clang_cc1 -triple riscv64 -target-feature +d -target-abi lp64d -emit-llvm %s -o - \
// RUN: | FileCheck %s

#include <stdint.h>

// Verify that the tracking of used GPRs and FPRs works correctly by checking
// that small integers are sign/zero extended when passed in registers.

// Doubles are passed in FPRs, so argument 'i' will be passed zero-extended
// because it will be passed in a GPR.

// CHECK: define void @f_fpr_tracking(double %a, double %b, double %c, double %d, double %e, double %f, double %g, double %h, i8 zeroext %i)
void f_fpr_tracking(double a, double b, double c, double d, double e, double f,
double g, double h, uint8_t i) {}

// Check that fp, fp+fp, and int+fp structs are lowered correctly. These will
// be passed in FPR, FPR+FPR, or GPR+FPR regs if sufficient registers are
// available the widths are <= XLEN and FLEN, and should be expanded to
// separate arguments in IR. They are passed by the same rules for returns,
// but will be lowered to simple two-element structs if necessary (as LLVM IR
// functions cannot return multiple values).

// A struct containing just one floating-point real is passed as though it
// were a standalone floating-point real.

struct double_s { double f; };

// CHECK: define void @f_double_s_arg(double)
void f_double_s_arg(struct double_s a) {}

// CHECK: define double @f_ret_double_s()
struct double_s f_ret_double_s() {
return (struct double_s){1.0};
}

// A struct containing a double and any number of zero-width bitfields is
// passed as though it were a standalone floating-point real.

struct zbf_double_s { int : 0; double f; };
struct zbf_double_zbf_s { int : 0; double f; int : 0; };

// CHECK: define void @f_zbf_double_s_arg(double)
void f_zbf_double_s_arg(struct zbf_double_s a) {}

// CHECK: define double @f_ret_zbf_double_s()
struct zbf_double_s f_ret_zbf_double_s() {
return (struct zbf_double_s){1.0};
}

// CHECK: define void @f_zbf_double_zbf_s_arg(double)
void f_zbf_double_zbf_s_arg(struct zbf_double_zbf_s a) {}

// CHECK: define double @f_ret_zbf_double_zbf_s()
struct zbf_double_zbf_s f_ret_zbf_double_zbf_s() {
return (struct zbf_double_zbf_s){1.0};
}

// Check that structs containing two floating point values (FLEN <= width) are
// expanded provided sufficient FPRs are available.

struct double_double_s { double f; double g; };
struct double_float_s { double f; float g; };

// CHECK: define void @f_double_double_s_arg(double, double)
void f_double_double_s_arg(struct double_double_s a) {}

// CHECK: define { double, double } @f_ret_double_double_s()
struct double_double_s f_ret_double_double_s() {
return (struct double_double_s){1.0, 2.0};
}

// CHECK: define void @f_double_float_s_arg(double, float)
void f_double_float_s_arg(struct double_float_s a) {}

// CHECK: define { double, float } @f_ret_double_float_s()
struct double_float_s f_ret_double_float_s() {
return (struct double_float_s){1.0, 2.0};
}

// CHECK: define void @f_double_double_s_arg_insufficient_fprs(float %a, double %b, double %c, double %d, double %e, double %f, double %g, [2 x i64] %h.coerce)
void f_double_double_s_arg_insufficient_fprs(float a, double b, double c, double d,
double e, double f, double g, struct double_double_s h) {}

// Check that structs containing int+double values are expanded, provided
// sufficient FPRs and GPRs are available. The integer components are neither
// sign or zero-extended.

struct double_int8_s { double f; int8_t i; };
struct double_uint8_s { double f; uint8_t i; };
struct double_int32_s { double f; int32_t i; };
struct double_int64_s { double f; int64_t i; };
struct double_int128bf_s { double f; __int128_t i : 64; };
struct double_int8_zbf_s { double f; int8_t i; int : 0; };

// CHECK: define void @f_double_int8_s_arg(double, i8)
void f_double_int8_s_arg(struct double_int8_s a) {}

// CHECK: define { double, i8 } @f_ret_double_int8_s()
struct double_int8_s f_ret_double_int8_s() {
return (struct double_int8_s){1.0, 2};
}

// CHECK: define void @f_double_uint8_s_arg(double, i8)
void f_double_uint8_s_arg(struct double_uint8_s a) {}

// CHECK: define { double, i8 } @f_ret_double_uint8_s()
struct double_uint8_s f_ret_double_uint8_s() {
return (struct double_uint8_s){1.0, 2};
}

// CHECK: define void @f_double_int32_s_arg(double, i32)
void f_double_int32_s_arg(struct double_int32_s a) {}

// CHECK: define { double, i32 } @f_ret_double_int32_s()
struct double_int32_s f_ret_double_int32_s() {
return (struct double_int32_s){1.0, 2};
}

// CHECK: define void @f_double_int64_s_arg(double, i64)
void f_double_int64_s_arg(struct double_int64_s a) {}

// CHECK: define { double, i64 } @f_ret_double_int64_s()
struct double_int64_s f_ret_double_int64_s() {
return (struct double_int64_s){1.0, 2};
}

// CHECK: define void @f_double_int128bf_s_arg(double, i64)
void f_double_int128bf_s_arg(struct double_int128bf_s a) {}

// CHECK: define { double, i64 } @f_ret_double_int128bf_s()
struct double_int128bf_s f_ret_double_int128bf_s() {
return (struct double_int128bf_s){1.0, 2};
}

// The zero-width bitfield means the struct can't be passed according to the
// floating point calling convention.

// CHECK: define void @f_double_int8_zbf_s(double, i8)
void f_double_int8_zbf_s(struct double_int8_zbf_s a) {}

// CHECK: define { double, i8 } @f_ret_double_int8_zbf_s()
struct double_int8_zbf_s f_ret_double_int8_zbf_s() {
return (struct double_int8_zbf_s){1.0, 2};
}

// CHECK: define void @f_double_int8_s_arg_insufficient_gprs(i32 signext %a, i32 signext %b, i32 signext %c, i32 signext %d, i32 signext %e, i32 signext %f, i32 signext %g, i32 signext %h, [2 x i64] %i.coerce)
void f_double_int8_s_arg_insufficient_gprs(int a, int b, int c, int d, int e,
int f, int g, int h, struct double_int8_s i) {}

// CHECK: define void @f_struct_double_int8_insufficient_fprs(float %a, double %b, double %c, double %d, double %e, double %f, double %g, double %h, [2 x i64] %i.coerce)
void f_struct_double_int8_insufficient_fprs(float a, double b, double c, double d,
double e, double f, double g, double h, struct double_int8_s i) {}

// Complex floating-point values or structs containing a single complex
// floating-point value should be passed as if it were an fp+fp struct.

// CHECK: define void @f_doublecomplex(double %a.coerce0, double %a.coerce1)
void f_doublecomplex(double __complex__ a) {}

// CHECK: define { double, double } @f_ret_doublecomplex()
double __complex__ f_ret_doublecomplex() {
return 1.0;
}

struct doublecomplex_s { double __complex__ c; };

// CHECK: define void @f_doublecomplex_s_arg(double, double)
void f_doublecomplex_s_arg(struct doublecomplex_s a) {}

// CHECK: define { double, double } @f_ret_doublecomplex_s()
struct doublecomplex_s f_ret_doublecomplex_s() {
return (struct doublecomplex_s){1.0};
}

// Test single or two-element structs that need flattening. e.g. those
// containing nested structs, doubles in small arrays, zero-length structs etc.

struct doublearr1_s { double a[1]; };

// CHECK: define void @f_doublearr1_s_arg(double)
void f_doublearr1_s_arg(struct doublearr1_s a) {}

// CHECK: define double @f_ret_doublearr1_s()
struct doublearr1_s f_ret_doublearr1_s() {
return (struct doublearr1_s){{1.0}};
}

struct doublearr2_s { double a[2]; };

// CHECK: define void @f_doublearr2_s_arg(double, double)
void f_doublearr2_s_arg(struct doublearr2_s a) {}

// CHECK: define { double, double } @f_ret_doublearr2_s()
struct doublearr2_s f_ret_doublearr2_s() {
return (struct doublearr2_s){{1.0, 2.0}};
}

struct doublearr2_tricky1_s { struct { double f[1]; } g[2]; };

// CHECK: define void @f_doublearr2_tricky1_s_arg(double, double)
void f_doublearr2_tricky1_s_arg(struct doublearr2_tricky1_s a) {}

// CHECK: define { double, double } @f_ret_doublearr2_tricky1_s()
struct doublearr2_tricky1_s f_ret_doublearr2_tricky1_s() {
return (struct doublearr2_tricky1_s){{{{1.0}}, {{2.0}}}};
}

struct doublearr2_tricky2_s { struct {}; struct { double f[1]; } g[2]; };

// CHECK: define void @f_doublearr2_tricky2_s_arg(double, double)
void f_doublearr2_tricky2_s_arg(struct doublearr2_tricky2_s a) {}

// CHECK: define { double, double } @f_ret_doublearr2_tricky2_s()
struct doublearr2_tricky2_s f_ret_doublearr2_tricky2_s() {
return (struct doublearr2_tricky2_s){{}, {{{1.0}}, {{2.0}}}};
}

struct doublearr2_tricky3_s { union {}; struct { double f[1]; } g[2]; };

// CHECK: define void @f_doublearr2_tricky3_s_arg(double, double)
void f_doublearr2_tricky3_s_arg(struct doublearr2_tricky3_s a) {}

// CHECK: define { double, double } @f_ret_doublearr2_tricky3_s()
struct doublearr2_tricky3_s f_ret_doublearr2_tricky3_s() {
return (struct doublearr2_tricky3_s){{}, {{{1.0}}, {{2.0}}}};
}

struct doublearr2_tricky4_s { union {}; struct { struct {}; double f[1]; } g[2]; };

// CHECK: define void @f_doublearr2_tricky4_s_arg(double, double)
void f_doublearr2_tricky4_s_arg(struct doublearr2_tricky4_s a) {}

// CHECK: define { double, double } @f_ret_doublearr2_tricky4_s()
struct doublearr2_tricky4_s f_ret_doublearr2_tricky4_s() {
return (struct doublearr2_tricky4_s){{}, {{{}, {1.0}}, {{}, {2.0}}}};
}

// Test structs that should be passed according to the normal integer calling
// convention.

struct int_double_int_s { int a; double b; int c; };

// CHECK: define void @f_int_double_int_s_arg(%struct.int_double_int_s* %a)
void f_int_double_int_s_arg(struct int_double_int_s a) {}

// CHECK: define void @f_ret_int_double_int_s(%struct.int_double_int_s* noalias sret %agg.result)
struct int_double_int_s f_ret_int_double_int_s() {
return (struct int_double_int_s){1, 2.0, 3};
}

struct char_char_double_s { char a; char b; double c; };

// CHECK-LABEL: define void @f_char_char_double_s_arg([2 x i64] %a.coerce)
void f_char_char_double_s_arg(struct char_char_double_s a) {}

// CHECK: define [2 x i64] @f_ret_char_char_double_s()
struct char_char_double_s f_ret_char_char_double_s() {
return (struct char_char_double_s){1, 2, 3.0};
}

// Unions are always passed according to the integer calling convention, even
// if they can only contain a double.

union double_u { double a; };

// CHECK: define void @f_double_u_arg(i64 %a.coerce)
void f_double_u_arg(union double_u a) {}

// CHECK: define i64 @f_ret_double_u()
union double_u f_ret_double_u() {
return (union double_u){1.0};
}
265 changes: 265 additions & 0 deletions clang/test/CodeGen/riscv64-lp64f-lp64d-abi.c
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// RUN: %clang_cc1 -triple riscv64 -target-feature +f -target-abi lp64f -emit-llvm %s -o - \
// RUN: | FileCheck %s
// RUN: %clang_cc1 -triple riscv64 -target-feature +d -target-abi lp64d -emit-llvm %s -o - \
// RUN: | FileCheck %s

#include <stdint.h>

// Verify that the tracking of used GPRs and FPRs works correctly by checking
// that small integers are sign/zero extended when passed in registers.

// Floats are passed in FPRs, so argument 'i' will be passed zero-extended
// because it will be passed in a GPR.

// CHECK: define void @f_fpr_tracking(float %a, float %b, float %c, float %d, float %e, float %f, float %g, float %h, i8 zeroext %i)
void f_fpr_tracking(float a, float b, float c, float d, float e, float f,
float g, float h, uint8_t i) {}

// Check that fp, fp+fp, and int+fp structs are lowered correctly. These will
// be passed in FPR, FPR+FPR, or GPR+FPR regs if sufficient registers are
// available the widths are <= XLEN and FLEN, and should be expanded to
// separate arguments in IR. They are passed by the same rules for returns,
// but will be lowered to simple two-element structs if necessary (as LLVM IR
// functions cannot return multiple values).

// A struct containing just one floating-point real is passed as though it
// were a standalone floating-point real.

struct float_s { float f; };

// CHECK: define void @f_float_s_arg(float)
void f_float_s_arg(struct float_s a) {}

// CHECK: define float @f_ret_float_s()
struct float_s f_ret_float_s() {
return (struct float_s){1.0};
}

// A struct containing a float and any number of zero-width bitfields is
// passed as though it were a standalone floating-point real.

struct zbf_float_s { int : 0; float f; };
struct zbf_float_zbf_s { int : 0; float f; int : 0; };

// CHECK: define void @f_zbf_float_s_arg(float)
void f_zbf_float_s_arg(struct zbf_float_s a) {}

// CHECK: define float @f_ret_zbf_float_s()
struct zbf_float_s f_ret_zbf_float_s() {
return (struct zbf_float_s){1.0};
}

// CHECK: define void @f_zbf_float_zbf_s_arg(float)
void f_zbf_float_zbf_s_arg(struct zbf_float_zbf_s a) {}

// CHECK: define float @f_ret_zbf_float_zbf_s()
struct zbf_float_zbf_s f_ret_zbf_float_zbf_s() {
return (struct zbf_float_zbf_s){1.0};
}

// Check that structs containing two float values (FLEN <= width) are expanded
// provided sufficient FPRs are available.

struct float_float_s { float f; float g; };

// CHECK: define void @f_float_float_s_arg(float, float)
void f_float_float_s_arg(struct float_float_s a) {}

// CHECK: define { float, float } @f_ret_float_float_s()
struct float_float_s f_ret_float_float_s() {
return (struct float_float_s){1.0, 2.0};
}

// CHECK: define void @f_float_float_s_arg_insufficient_fprs(float %a, float %b, float %c, float %d, float %e, float %f, float %g, i64 %h.coerce)
void f_float_float_s_arg_insufficient_fprs(float a, float b, float c, float d,
float e, float f, float g, struct float_float_s h) {}

// Check that structs containing int+float values are expanded, provided
// sufficient FPRs and GPRs are available. The integer components are neither
// sign or zero-extended.

struct float_int8_s { float f; int8_t i; };
struct float_uint8_s { float f; uint8_t i; };
struct float_int32_s { float f; int32_t i; };
struct float_int64_s { float f; int64_t i; };
struct float_int128bf_s { float f; __int128_t i : 64; };
struct float_int8_zbf_s { float f; int8_t i; int : 0; };

// CHECK: define void @f_float_int8_s_arg(float, i8)
void f_float_int8_s_arg(struct float_int8_s a) {}

// CHECK: define { float, i8 } @f_ret_float_int8_s()
struct float_int8_s f_ret_float_int8_s() {
return (struct float_int8_s){1.0, 2};
}

// CHECK: define void @f_float_uint8_s_arg(float, i8)
void f_float_uint8_s_arg(struct float_uint8_s a) {}

// CHECK: define { float, i8 } @f_ret_float_uint8_s()
struct float_uint8_s f_ret_float_uint8_s() {
return (struct float_uint8_s){1.0, 2};
}

// CHECK: define void @f_float_int32_s_arg(float, i32)
void f_float_int32_s_arg(struct float_int32_s a) {}

// CHECK: define { float, i32 } @f_ret_float_int32_s()
struct float_int32_s f_ret_float_int32_s() {
return (struct float_int32_s){1.0, 2};
}

// CHECK: define void @f_float_int64_s_arg(float, i64)
void f_float_int64_s_arg(struct float_int64_s a) {}

// CHECK: define { float, i64 } @f_ret_float_int64_s()
struct float_int64_s f_ret_float_int64_s() {
return (struct float_int64_s){1.0, 2};
}

// CHECK: define void @f_float_int128bf_s_arg(float, i64)
void f_float_int128bf_s_arg(struct float_int128bf_s a) {}

// CHECK: define <{ float, i64 }> @f_ret_float_int128bf_s()
struct float_int128bf_s f_ret_float_int128bf_s() {
return (struct float_int128bf_s){1.0, 2};
}

// The zero-width bitfield means the struct can't be passed according to the
// floating point calling convention.

// CHECK: define void @f_float_int8_zbf_s(float, i8)
void f_float_int8_zbf_s(struct float_int8_zbf_s a) {}

// CHECK: define { float, i8 } @f_ret_float_int8_zbf_s()
struct float_int8_zbf_s f_ret_float_int8_zbf_s() {
return (struct float_int8_zbf_s){1.0, 2};
}

// CHECK: define void @f_float_int8_s_arg_insufficient_gprs(i32 signext %a, i32 signext %b, i32 signext %c, i32 signext %d, i32 signext %e, i32 signext %f, i32 signext %g, i32 signext %h, i64 %i.coerce)
void f_float_int8_s_arg_insufficient_gprs(int a, int b, int c, int d, int e,
int f, int g, int h, struct float_int8_s i) {}

// CHECK: define void @f_struct_float_int8_insufficient_fprs(float %a, float %b, float %c, float %d, float %e, float %f, float %g, float %h, i64 %i.coerce)
void f_struct_float_int8_insufficient_fprs(float a, float b, float c, float d,
float e, float f, float g, float h, struct float_int8_s i) {}

// Complex floating-point values or structs containing a single complex
// floating-point value should be passed as if it were an fp+fp struct.

// CHECK: define void @f_floatcomplex(float %a.coerce0, float %a.coerce1)
void f_floatcomplex(float __complex__ a) {}

// CHECK: define { float, float } @f_ret_floatcomplex()
float __complex__ f_ret_floatcomplex() {
return 1.0;
}

struct floatcomplex_s { float __complex__ c; };

// CHECK: define void @f_floatcomplex_s_arg(float, float)
void f_floatcomplex_s_arg(struct floatcomplex_s a) {}

// CHECK: define { float, float } @f_ret_floatcomplex_s()
struct floatcomplex_s f_ret_floatcomplex_s() {
return (struct floatcomplex_s){1.0};
}

// Test single or two-element structs that need flattening. e.g. those
// containing nested structs, floats in small arrays, zero-length structs etc.

struct floatarr1_s { float a[1]; };

// CHECK: define void @f_floatarr1_s_arg(float)
void f_floatarr1_s_arg(struct floatarr1_s a) {}

// CHECK: define float @f_ret_floatarr1_s()
struct floatarr1_s f_ret_floatarr1_s() {
return (struct floatarr1_s){{1.0}};
}

struct floatarr2_s { float a[2]; };

// CHECK: define void @f_floatarr2_s_arg(float, float)
void f_floatarr2_s_arg(struct floatarr2_s a) {}

// CHECK: define { float, float } @f_ret_floatarr2_s()
struct floatarr2_s f_ret_floatarr2_s() {
return (struct floatarr2_s){{1.0, 2.0}};
}

struct floatarr2_tricky1_s { struct { float f[1]; } g[2]; };

// CHECK: define void @f_floatarr2_tricky1_s_arg(float, float)
void f_floatarr2_tricky1_s_arg(struct floatarr2_tricky1_s a) {}

// CHECK: define { float, float } @f_ret_floatarr2_tricky1_s()
struct floatarr2_tricky1_s f_ret_floatarr2_tricky1_s() {
return (struct floatarr2_tricky1_s){{{{1.0}}, {{2.0}}}};
}

struct floatarr2_tricky2_s { struct {}; struct { float f[1]; } g[2]; };

// CHECK: define void @f_floatarr2_tricky2_s_arg(float, float)
void f_floatarr2_tricky2_s_arg(struct floatarr2_tricky2_s a) {}

// CHECK: define { float, float } @f_ret_floatarr2_tricky2_s()
struct floatarr2_tricky2_s f_ret_floatarr2_tricky2_s() {
return (struct floatarr2_tricky2_s){{}, {{{1.0}}, {{2.0}}}};
}

struct floatarr2_tricky3_s { union {}; struct { float f[1]; } g[2]; };

// CHECK: define void @f_floatarr2_tricky3_s_arg(float, float)
void f_floatarr2_tricky3_s_arg(struct floatarr2_tricky3_s a) {}

// CHECK: define { float, float } @f_ret_floatarr2_tricky3_s()
struct floatarr2_tricky3_s f_ret_floatarr2_tricky3_s() {
return (struct floatarr2_tricky3_s){{}, {{{1.0}}, {{2.0}}}};
}

struct floatarr2_tricky4_s { union {}; struct { struct {}; float f[1]; } g[2]; };

// CHECK: define void @f_floatarr2_tricky4_s_arg(float, float)
void f_floatarr2_tricky4_s_arg(struct floatarr2_tricky4_s a) {}

// CHECK: define { float, float } @f_ret_floatarr2_tricky4_s()
struct floatarr2_tricky4_s f_ret_floatarr2_tricky4_s() {
return (struct floatarr2_tricky4_s){{}, {{{}, {1.0}}, {{}, {2.0}}}};
}

// Test structs that should be passed according to the normal integer calling
// convention.

struct int_float_int_s { int a; float b; int c; };

// CHECK: define void @f_int_float_int_s_arg([2 x i64] %a.coerce)
void f_int_float_int_s_arg(struct int_float_int_s a) {}

// CHECK: define [2 x i64] @f_ret_int_float_int_s()
struct int_float_int_s f_ret_int_float_int_s() {
return (struct int_float_int_s){1, 2.0, 3};
}

struct char_char_float_s { char a; char b; float c; };

// CHECK-LABEL: define void @f_char_char_float_s_arg(i64 %a.coerce)
void f_char_char_float_s_arg(struct char_char_float_s a) {}

// CHECK: define i64 @f_ret_char_char_float_s()
struct char_char_float_s f_ret_char_char_float_s() {
return (struct char_char_float_s){1, 2, 3.0};
}

// Unions are always passed according to the integer calling convention, even
// if they can only contain a float.

union float_u { float a; };

// CHECK: define void @f_float_u_arg(i64 %a.coerce)
void f_float_u_arg(union float_u a) {}

// CHECK: define i64 @f_ret_float_u()
union float_u f_ret_float_u() {
return (union float_u){1.0};
}
20 changes: 8 additions & 12 deletions clang/test/Driver/riscv-abi.c
View file
Original file line number Diff line number Diff line change
Expand Up @@ -9,17 +9,15 @@

// CHECK-ILP32: "-target-abi" "ilp32"

// TODO: ilp32f support.
// RUN: not %clang -target riscv32-unknown-elf %s -o %t.o -mabi=ilp32f 2>&1 \
// RUN: %clang -target riscv32-unknown-elf %s -### -o %t.o -march=rv32if -mabi=ilp32f 2>&1 \
// RUN: | FileCheck -check-prefix=CHECK-ILP32F %s

// CHECK-ILP32F: error: unknown target ABI 'ilp32f'
// CHECK-ILP32F: "-target-abi" "ilp32f"

// TODO: ilp32d support.
// RUN: not %clang -target riscv32-unknown-elf %s -o %t.o -mabi=ilp32d 2>&1 \
// RUN: %clang -target riscv32-unknown-elf %s -### -o %t.o -march=rv32ifd -mabi=ilp32d 2>&1 \
// RUN: | FileCheck -check-prefix=CHECK-ILP32D %s

// CHECK-ILP32D: error: unknown target ABI 'ilp32d'
// CHECK-ILP32D: "-target-abi" "ilp32d"

// RUN: not %clang -target riscv32-unknown-elf %s -o %t.o -mabi=lp64 2>&1 \
// RUN: | FileCheck -check-prefix=CHECK-RV32-LP64 %s
Expand All @@ -37,17 +35,15 @@

// CHECK-LP64: "-target-abi" "lp64"

// TODO: lp64f support.
// RUN: not %clang -target riscv64-unknown-elf %s -o %t.o -mabi=lp64f 2>&1 \
// RUN: %clang -target riscv64-unknown-elf %s -### -o %t.o -march=rv64f -mabi=lp64f 2>&1 \
// RUN: | FileCheck -check-prefix=CHECK-LP64F %s

// CHECK-LP64F: error: unknown target ABI 'lp64f'
// CHECK-LP64F: "-target-abi" "lp64f"

// TODO: lp64d support.
// RUN: not %clang -target riscv64-unknown-elf %s -o %t.o -mabi=lp64d 2>&1 \
// RUN: %clang -target riscv64-unknown-elf %s -### -o %t.o -march=rv64d -mabi=lp64d 2>&1 \
// RUN: | FileCheck -check-prefix=CHECK-LP64D %s

// CHECK-LP64D: error: unknown target ABI 'lp64d'
// CHECK-LP64D: "-target-abi" "lp64d"

// RUN: not %clang -target riscv64-unknown-elf %s -o %t.o -mabi=ilp32 2>&1 \
// RUN: | FileCheck -check-prefix=CHECK-RV64-ILP32 %s
Expand Down
24 changes: 24 additions & 0 deletions clang/test/Preprocessor/riscv-target-features.c
View file
Original file line number Diff line number Diff line change
Expand Up @@ -47,3 +47,27 @@
// RUN: %clang -target riscv64-unknown-linux-gnu -march=rv64ic -x c -E -dM %s \
// RUN: -o - | FileCheck --check-prefix=CHECK-C-EXT %s
// CHECK-C-EXT: __riscv_compressed 1

// RUN: %clang -target riscv32-unknown-linux-gnu -march=rv32ifd -x c -E -dM %s \
// RUN: -o - | FileCheck --check-prefix=CHECK-SOFT %s
// RUN: %clang -target riscv64-unknown-linux-gnu -march=rv64ifd -x c -E -dM %s \
// RUN: -o - | FileCheck --check-prefix=CHECK-SOFT %s
// CHECK-SOFT: __riscv_float_abi_soft 1
// CHECK-SOFT-NOT: __riscv_float_abi_single
// CHECK-SOFT-NOT: __riscv_float_abi_double

// RUN: %clang -target riscv32-unknown-linux-gnu -march=rv32ifd -mabi=ilp32f -x c -E -dM %s \
// RUN: -o - | FileCheck --check-prefix=CHECK-SINGLE %s
// RUN: %clang -target riscv64-unknown-linux-gnu -march=rv64ifd -mabi=lp64f -x c -E -dM %s \
// RUN: -o - | FileCheck --check-prefix=CHECK-SINGLE %s
// CHECK-SINGLE: __riscv_float_abi_single 1
// CHECK-SINGLE-NOT: __riscv_float_abi_soft
// CHECK-SINGLE-NOT: __riscv_float_abi_double

// RUN: %clang -target riscv32-unknown-linux-gnu -march=rv32ifd -mabi=ilp32d -x c -E -dM %s \
// RUN: -o - | FileCheck --check-prefix=CHECK-DOUBLE %s
// RUN: %clang -target riscv64-unknown-linux-gnu -march=rv64ifd -mabi=lp64d -x c -E -dM %s \
// RUN: -o - | FileCheck --check-prefix=CHECK-DOUBLE %s
// CHECK-DOUBLE: __riscv_float_abi_double 1
// CHECK-DOUBLE-NOT: __riscv_float_abi_soft
// CHECK-DOUBLE-NOT: __riscv_float_abi_single