1// RUN: %clang_cc1 -triple x86_64-unknown-nacl -emit-llvm -o - %s| FileCheck %s 2#include <stdarg.h> 3// Test for x86-64 structure representation (instead of pnacl representation), 4// in particular for unions. Also crib a few tests from x86 Linux. 5 6union PP_VarValue { 7 int as_int; 8 double as_double; 9 long long as_i64; 10}; 11 12struct PP_Var { 13 int type; 14 int padding; 15 union PP_VarValue value; 16}; 17 18// CHECK: define { i64, i64 } @f0() 19struct PP_Var f0() { 20 struct PP_Var result = { 0, 0, 0 }; 21 return result; 22} 23 24// CHECK-LABEL: define void @f1(i64 %p1.coerce0, i64 %p1.coerce1) 25void f1(struct PP_Var p1) { while(1) {} } 26 27// long doubles are 64 bits on NaCl 28// CHECK-LABEL: define double @f5() 29long double f5(void) { 30 return 0; 31} 32 33// CHECK-LABEL: define void @f6(i8 signext %a0, i16 signext %a1, i32 %a2, i64 %a3, i8* %a4) 34void f6(char a0, short a1, int a2, long long a3, void *a4) { 35} 36 37// CHECK-LABEL: define i64 @f8_1() 38// CHECK-LABEL: define void @f8_2(i64 %a0.coerce) 39union u8 { 40 long double a; 41 int b; 42}; 43union u8 f8_1() { while (1) {} } 44void f8_2(union u8 a0) {} 45 46// CHECK-LABEL: define i64 @f9() 47struct s9 { int a; int b; int : 0; } f9(void) { while (1) {} } 48 49// CHECK-LABEL: define void @f10(i64 %a0.coerce) 50struct s10 { int a; int b; int : 0; }; 51void f10(struct s10 a0) {} 52 53// CHECK-LABEL: define double @f11() 54union { long double a; float b; } f11() { while (1) {} } 55 56// CHECK-LABEL: define i32 @f12_0() 57// CHECK-LABEL: define void @f12_1(i32 %a0.coerce) 58struct s12 { int a __attribute__((aligned(16))); }; 59struct s12 f12_0(void) { while (1) {} } 60void f12_1(struct s12 a0) {} 61 62// Check that sret parameter is accounted for when checking available integer 63// registers. 64// CHECK: define void @f13(%struct.s13_0* noalias sret %agg.result, i32 %a, i32 %b, i32 %c, i32 %d, {{.*}}* byval align 8 %e, i32 %f) 65 66struct s13_0 { long long f0[3]; }; 67struct s13_1 { long long f0[2]; }; 68struct s13_0 f13(int a, int b, int c, int d, 69 struct s13_1 e, int f) { while (1) {} } 70 71// CHECK-LABEL: define void @f20(%struct.s20* byval align 32 %x) 72struct __attribute__((aligned(32))) s20 { 73 int x; 74 int y; 75}; 76void f20(struct s20 x) {} 77 78 79// CHECK: declare void @func(i64) 80typedef struct _str { 81 union { 82 long double a; 83 long c; 84 }; 85} str; 86 87void func(str s); 88str ss; 89void f9122143() 90{ 91 func(ss); 92} 93