1 // RUN: %clang_cc1 -std=c++11 -triple x86_64-unknown-nacl -emit-llvm -o - %s | FileCheck %s 2 // RUN: %clang_cc1 -std=c++11 -triple=x86_64-unknown-linux-gnux32 -emit-llvm -o - %s | FileCheck %s 3 4 struct test_struct {}; 5 typedef int test_struct::* test_struct_mdp; 6 typedef int (test_struct::*test_struct_mfp)(); 7 8 // CHECK-LABEL: define i32 @{{.*}}f_mdp{{.*}}(i32 %a) 9 test_struct_mdp f_mdp(test_struct_mdp a) { return a; } 10 11 // CHECK-LABEL: define {{.*}} @{{.*}}f_mfp{{.*}}(i64 %a.coerce) 12 test_struct_mfp f_mfp(test_struct_mfp a) { return a; } 13 14 // A struct with <= 12 bytes before a member data pointer should still 15 // be allowed in registers, since the member data pointer is only 4 bytes. 16 // CHECK-LABEL: define void @{{.*}}f_struct_with_mdp{{.*}}(i64 %a.coerce0, i64 %a.coerce1) 17 struct struct_with_mdp { char *a; char *b; char *c; test_struct_mdp d; }; 18 void f_struct_with_mdp(struct_with_mdp a) { (void)a; } 19 20 struct struct_with_mdp_too_much { 21 char *a; char *b; char *c; char *d; test_struct_mdp e; 22 }; 23 // CHECK-LABEL: define void @{{.*}}f_struct_with_mdp_too_much{{.*}}({{.*}} byval {{.*}} %a) 24 void f_struct_with_mdp_too_much(struct_with_mdp_too_much a) { 25 (void)a; 26 } 27 28 // A struct with <= 8 bytes before a member function pointer should still 29 // be allowed in registers, since the member function pointer is only 8 bytes. 30 // CHECK-LABEL: define void @{{.*}}f_struct_with_mfp_0{{.*}}(i64 %a.coerce0, i32 %a.coerce1) 31 struct struct_with_mfp_0 { char *a; test_struct_mfp b; }; 32 void f_struct_with_mfp_0(struct_with_mfp_0 a) { (void)a; } 33 34 // CHECK-LABEL: define void @{{.*}}f_struct_with_mfp_1{{.*}}(i64 %a.coerce0, i64 %a.coerce1) 35 struct struct_with_mfp_1 { char *a; char *b; test_struct_mfp c; }; 36 void f_struct_with_mfp_1(struct_with_mfp_1 a) { (void)a; } 37 38 // CHECK-LABEL: define void @{{.*}}f_struct_with_mfp_too_much{{.*}}({{.*}} byval {{.*}} %a, i32 %x) 39 struct struct_with_mfp_too_much { 40 char *a; char *b; char *c; test_struct_mfp d; 41 }; 42 void f_struct_with_mfp_too_much(struct_with_mfp_too_much a, int x) { 43 (void)a; 44 } 45 46 /* Struct containing an empty struct */ 47 typedef struct { int* a; test_struct x; double *b; } struct_with_empty; 48 49 // CHECK-LABEL: define void @{{.*}}f_pass_struct_with_empty{{.*}}(i64 %x{{.*}}, double* %x 50 void f_pass_struct_with_empty(struct_with_empty x) { 51 (void) x; 52 } 53 54 // CHECK-LABEL: define { i64, double* } @{{.*}}f_return_struct_with_empty 55 struct_with_empty f_return_struct_with_empty() { 56 return {0, {}, 0}; 57 } 58
