17da46f949f6ec63d7c7dcda5f49588261c669ffbDerek Schuff// RUN: %clang_cc1 -triple x86_64-unknown-nacl -emit-llvm -o - %s| FileCheck %s 27da46f949f6ec63d7c7dcda5f49588261c669ffbDerek Schuff#include <stdarg.h> 37da46f949f6ec63d7c7dcda5f49588261c669ffbDerek Schuff// Test for x86-64 structure representation (instead of pnacl representation), 47da46f949f6ec63d7c7dcda5f49588261c669ffbDerek Schuff// in particular for unions. Also crib a few tests from x86 Linux. 57da46f949f6ec63d7c7dcda5f49588261c669ffbDerek Schuff 67da46f949f6ec63d7c7dcda5f49588261c669ffbDerek Schuffunion PP_VarValue { 77da46f949f6ec63d7c7dcda5f49588261c669ffbDerek Schuff int as_int; 87da46f949f6ec63d7c7dcda5f49588261c669ffbDerek Schuff double as_double; 97da46f949f6ec63d7c7dcda5f49588261c669ffbDerek Schuff long long as_i64; 107da46f949f6ec63d7c7dcda5f49588261c669ffbDerek Schuff}; 117da46f949f6ec63d7c7dcda5f49588261c669ffbDerek Schuff 127da46f949f6ec63d7c7dcda5f49588261c669ffbDerek Schuffstruct PP_Var { 137da46f949f6ec63d7c7dcda5f49588261c669ffbDerek Schuff int type; 147da46f949f6ec63d7c7dcda5f49588261c669ffbDerek Schuff int padding; 157da46f949f6ec63d7c7dcda5f49588261c669ffbDerek Schuff union PP_VarValue value; 167da46f949f6ec63d7c7dcda5f49588261c669ffbDerek Schuff}; 177da46f949f6ec63d7c7dcda5f49588261c669ffbDerek Schuff 187da46f949f6ec63d7c7dcda5f49588261c669ffbDerek Schuff// CHECK: define { i64, i64 } @f0() 197da46f949f6ec63d7c7dcda5f49588261c669ffbDerek Schuffstruct PP_Var f0() { 207da46f949f6ec63d7c7dcda5f49588261c669ffbDerek Schuff struct PP_Var result = { 0, 0, 0 }; 217da46f949f6ec63d7c7dcda5f49588261c669ffbDerek Schuff return result; 227da46f949f6ec63d7c7dcda5f49588261c669ffbDerek Schuff} 237da46f949f6ec63d7c7dcda5f49588261c669ffbDerek Schuff 2493ab6bf534fb6c26563c00f28a8fc5581bb71dfdStephen Lin// CHECK-LABEL: define void @f1(i64 %p1.coerce0, i64 %p1.coerce1) 257da46f949f6ec63d7c7dcda5f49588261c669ffbDerek Schuffvoid f1(struct PP_Var p1) { while(1) {} } 267da46f949f6ec63d7c7dcda5f49588261c669ffbDerek Schuff 277da46f949f6ec63d7c7dcda5f49588261c669ffbDerek Schuff// long doubles are 64 bits on NaCl 2893ab6bf534fb6c26563c00f28a8fc5581bb71dfdStephen Lin// CHECK-LABEL: define double @f5() 297da46f949f6ec63d7c7dcda5f49588261c669ffbDerek Schufflong double f5(void) { 307da46f949f6ec63d7c7dcda5f49588261c669ffbDerek Schuff return 0; 317da46f949f6ec63d7c7dcda5f49588261c669ffbDerek Schuff} 327da46f949f6ec63d7c7dcda5f49588261c669ffbDerek Schuff 3393ab6bf534fb6c26563c00f28a8fc5581bb71dfdStephen Lin// CHECK-LABEL: define void @f6(i8 signext %a0, i16 signext %a1, i32 %a2, i64 %a3, i8* %a4) 347da46f949f6ec63d7c7dcda5f49588261c669ffbDerek Schuffvoid f6(char a0, short a1, int a2, long long a3, void *a4) { 357da46f949f6ec63d7c7dcda5f49588261c669ffbDerek Schuff} 367da46f949f6ec63d7c7dcda5f49588261c669ffbDerek Schuff 3793ab6bf534fb6c26563c00f28a8fc5581bb71dfdStephen Lin// CHECK-LABEL: define i64 @f8_1() 3893ab6bf534fb6c26563c00f28a8fc5581bb71dfdStephen Lin// CHECK-LABEL: define void @f8_2(i64 %a0.coerce) 397da46f949f6ec63d7c7dcda5f49588261c669ffbDerek Schuffunion u8 { 407da46f949f6ec63d7c7dcda5f49588261c669ffbDerek Schuff long double a; 417da46f949f6ec63d7c7dcda5f49588261c669ffbDerek Schuff int b; 427da46f949f6ec63d7c7dcda5f49588261c669ffbDerek Schuff}; 437da46f949f6ec63d7c7dcda5f49588261c669ffbDerek Schuffunion u8 f8_1() { while (1) {} } 447da46f949f6ec63d7c7dcda5f49588261c669ffbDerek Schuffvoid f8_2(union u8 a0) {} 457da46f949f6ec63d7c7dcda5f49588261c669ffbDerek Schuff 4693ab6bf534fb6c26563c00f28a8fc5581bb71dfdStephen Lin// CHECK-LABEL: define i64 @f9() 477da46f949f6ec63d7c7dcda5f49588261c669ffbDerek Schuffstruct s9 { int a; int b; int : 0; } f9(void) { while (1) {} } 487da46f949f6ec63d7c7dcda5f49588261c669ffbDerek Schuff 4993ab6bf534fb6c26563c00f28a8fc5581bb71dfdStephen Lin// CHECK-LABEL: define void @f10(i64 %a0.coerce) 507da46f949f6ec63d7c7dcda5f49588261c669ffbDerek Schuffstruct s10 { int a; int b; int : 0; }; 517da46f949f6ec63d7c7dcda5f49588261c669ffbDerek Schuffvoid f10(struct s10 a0) {} 527da46f949f6ec63d7c7dcda5f49588261c669ffbDerek Schuff 5393ab6bf534fb6c26563c00f28a8fc5581bb71dfdStephen Lin// CHECK-LABEL: define double @f11() 547da46f949f6ec63d7c7dcda5f49588261c669ffbDerek Schuffunion { long double a; float b; } f11() { while (1) {} } 557da46f949f6ec63d7c7dcda5f49588261c669ffbDerek Schuff 5693ab6bf534fb6c26563c00f28a8fc5581bb71dfdStephen Lin// CHECK-LABEL: define i32 @f12_0() 5793ab6bf534fb6c26563c00f28a8fc5581bb71dfdStephen Lin// CHECK-LABEL: define void @f12_1(i32 %a0.coerce) 587da46f949f6ec63d7c7dcda5f49588261c669ffbDerek Schuffstruct s12 { int a __attribute__((aligned(16))); }; 597da46f949f6ec63d7c7dcda5f49588261c669ffbDerek Schuffstruct s12 f12_0(void) { while (1) {} } 607da46f949f6ec63d7c7dcda5f49588261c669ffbDerek Schuffvoid f12_1(struct s12 a0) {} 617da46f949f6ec63d7c7dcda5f49588261c669ffbDerek Schuff 627da46f949f6ec63d7c7dcda5f49588261c669ffbDerek Schuff// Check that sret parameter is accounted for when checking available integer 637da46f949f6ec63d7c7dcda5f49588261c669ffbDerek Schuff// registers. 64c1ea4b96adca4767991bb0a7b21052cef4db059cBill Wendling// 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) 657da46f949f6ec63d7c7dcda5f49588261c669ffbDerek Schuff 667da46f949f6ec63d7c7dcda5f49588261c669ffbDerek Schuffstruct s13_0 { long long f0[3]; }; 677da46f949f6ec63d7c7dcda5f49588261c669ffbDerek Schuffstruct s13_1 { long long f0[2]; }; 687da46f949f6ec63d7c7dcda5f49588261c669ffbDerek Schuffstruct s13_0 f13(int a, int b, int c, int d, 697da46f949f6ec63d7c7dcda5f49588261c669ffbDerek Schuff struct s13_1 e, int f) { while (1) {} } 707da46f949f6ec63d7c7dcda5f49588261c669ffbDerek Schuff 7193ab6bf534fb6c26563c00f28a8fc5581bb71dfdStephen Lin// CHECK-LABEL: define void @f20(%struct.s20* byval align 32 %x) 727da46f949f6ec63d7c7dcda5f49588261c669ffbDerek Schuffstruct __attribute__((aligned(32))) s20 { 737da46f949f6ec63d7c7dcda5f49588261c669ffbDerek Schuff int x; 747da46f949f6ec63d7c7dcda5f49588261c669ffbDerek Schuff int y; 757da46f949f6ec63d7c7dcda5f49588261c669ffbDerek Schuff}; 767da46f949f6ec63d7c7dcda5f49588261c669ffbDerek Schuffvoid f20(struct s20 x) {} 777da46f949f6ec63d7c7dcda5f49588261c669ffbDerek Schuff 787da46f949f6ec63d7c7dcda5f49588261c669ffbDerek Schuff 797da46f949f6ec63d7c7dcda5f49588261c669ffbDerek Schuff// CHECK: declare void @func(i64) 807da46f949f6ec63d7c7dcda5f49588261c669ffbDerek Schufftypedef struct _str { 817da46f949f6ec63d7c7dcda5f49588261c669ffbDerek Schuff union { 827da46f949f6ec63d7c7dcda5f49588261c669ffbDerek Schuff long double a; 837da46f949f6ec63d7c7dcda5f49588261c669ffbDerek Schuff long c; 847da46f949f6ec63d7c7dcda5f49588261c669ffbDerek Schuff }; 857da46f949f6ec63d7c7dcda5f49588261c669ffbDerek Schuff} str; 867da46f949f6ec63d7c7dcda5f49588261c669ffbDerek Schuff 877da46f949f6ec63d7c7dcda5f49588261c669ffbDerek Schuffvoid func(str s); 887da46f949f6ec63d7c7dcda5f49588261c669ffbDerek Schuffstr ss; 897da46f949f6ec63d7c7dcda5f49588261c669ffbDerek Schuffvoid f9122143() 907da46f949f6ec63d7c7dcda5f49588261c669ffbDerek Schuff{ 917da46f949f6ec63d7c7dcda5f49588261c669ffbDerek Schuff func(ss); 927da46f949f6ec63d7c7dcda5f49588261c669ffbDerek Schuff} 93