1// RUN: %clang_cc1 -triple i386-unknown-unknown %s -emit-llvm -o - | FileCheck %s 2 3__attribute__((regparm(3))) void f1(int a, int b, int c, int d); 4// CHECK: declare void @f1(i32 inreg, i32 inreg, i32 inreg, i32) 5void g1() { 6 f1(41, 42, 43, 44); 7} 8 9struct s1 { 10 int x1; 11}; 12__attribute__((regparm(3))) void f2(int a, int b, struct s1 c, int d); 13// CHECK: declare void @f2(i32 inreg, i32 inreg, i32 inreg, i32) 14void g2() { 15 struct s1 x = {43}; 16 f2(41, 42, x, 44); 17} 18 19struct s2 { 20 int x1; 21 int x2; 22}; 23__attribute__((regparm(3))) void f3(int a, int b, struct s2 c, int d); 24// CHECK: declare void @f3(i32 inreg, i32 inreg, i32, i32, i32) 25void g3() { 26 struct s2 x = {43, 44}; 27 f3(41, 42, x, 45); 28} 29__attribute__((regparm(3))) void f4(int a, struct s2 b, int c); 30// CHECK: declare void @f4(i32 inreg, i32 inreg, i32 inreg, i32) 31void g4() { 32 struct s2 x = {42, 43}; 33 f4(41, x, 44); 34} 35 36struct s3 { 37 int x1; 38 int x2; 39 int x3; 40}; 41__attribute__((regparm(3))) void f5(int a, struct s3 b, int c); 42// CHECK: declare void @f5(i32 inreg, i32, i32, i32, i32) 43void g5() { 44 struct s3 x = {42, 43, 44}; 45 f5(41, x, 45); 46} 47__attribute__((regparm(3))) void f6(struct s3 a, int b); 48// CHECK: declare void @f6(i32 inreg, i32 inreg, i32 inreg, i32) 49void g6() { 50 struct s3 x = {41, 42, 43}; 51 f6(x, 44); 52} 53 54struct s4 { 55 int x1; 56 int x2; 57 int x3; 58 int x4; 59}; 60__attribute__((regparm(3))) void f7(struct s4 a, int b); 61// CHECK: declare void @f7(i32, i32, i32, i32, i32) 62void g7() { 63 struct s4 x = {41, 42, 43, 44}; 64 f7(x, 45); 65} 66 67__attribute__((regparm(3))) void f8(float a, int b); 68// CHECK: declare void @f8(float, i32 inreg) 69void g8(void) { 70 f8(41, 42); 71} 72 73struct s5 { 74 float x1; 75}; 76__attribute__((regparm(3))) void f9(struct s5 a, int b); 77// CHECK: declare void @f9(float, i32 inreg) 78void g9(void) { 79 struct s5 x = {41}; 80 f9(x, 42); 81} 82 83struct s6 { 84 float x1; 85 int x2; 86}; 87__attribute__((regparm(3))) void f10(struct s6 a, int b); 88// CHECK: declare void @f10(i32 inreg, i32 inreg, i32 inreg) 89void g10(void) { 90 struct s6 x = {41, 42}; 91 f10(x, 43); 92} 93 94struct s7 { 95 float x1; 96 int x2; 97 float x3; 98}; 99__attribute__((regparm(3))) void f11(struct s7 a, int b); 100// CHECK: declare void @f11(i32 inreg, i32 inreg, i32 inreg, i32) 101void g11(void) { 102 struct s7 x = {41, 42, 43}; 103 f11(x, 44); 104} 105 106struct s8 { 107 float x1; 108 float x2; 109}; 110__attribute__((regparm(3))) void f12(struct s8 a, int b); 111// CHECK: declare void @f12(i32 inreg, i32 inreg, i32 inreg) 112void g12(void) { 113 struct s8 x = {41, 42}; 114 f12(x, 43); 115} 116 117struct s9 { 118 float x1; 119 float x2; 120 float x3; 121}; 122__attribute__((regparm(3))) void f13(struct s9 a, int b); 123// CHECK: declare void @f13(i32 inreg, i32 inreg, i32 inreg, i32) 124void g13(void) { 125 struct s9 x = {41, 42, 43}; 126 f13(x, 44); 127} 128 129struct s10 { 130 double x1; 131}; 132__attribute__((regparm(3))) void f14(struct s10 a, int b, int c); 133// CHECK: declare void @f14(double, i32 inreg, i32 inreg) 134void g14(void) { 135 struct s10 x = { 41 }; 136 f14(x, 42, 43); 137} 138 139struct s11 { 140 double x1; 141 double x2; 142}; 143__attribute__((regparm(3))) void f15(struct s11 a, int b); 144// CHECK: declare void @f15(double, double, i32) 145void g15(void) { 146 struct s11 x = { 41, 42 }; 147 f15(x, 43); 148} 149 150struct s12 { 151 double x1; 152 float x2; 153}; 154__attribute__((regparm(3))) void f16(struct s12 a, int b); 155// CHECK: declare void @f16(i32 inreg, i32 inreg, i32 inreg, i32) 156void g16(void) { 157 struct s12 x = { 41, 42 }; 158 f16(x, 43); 159} 160 161__attribute__((regparm(3))) struct s12 f17(int a, int b, int c); 162// CHECK: declare void @f17(%struct.s12* inreg sret, i32 inreg, i32 inreg, i32) 163void g17(void) { 164 f17(41, 42, 43); 165} 166 167struct s13 { 168 struct inner { 169 float x; 170 } y; 171}; 172__attribute__((regparm(3))) void f18(struct s13 a, int b, int c, int d); 173// CHECK: declare void @f18(%struct.s13* byval align 4, i32 inreg, i32 inreg, i32 inreg) 174void g18(void) { 175 struct s13 x = {{41}}; 176 f18(x, 42, 43, 44); 177} 178