| // RUN: %clang_cc1 -triple x86_64-unknown-nacl -emit-llvm -o - %s| FileCheck %s |
| #include <stdarg.h> |
| // Test for x86-64 structure representation (instead of pnacl representation), |
| // in particular for unions. Also crib a few tests from x86 Linux. |
| |
| union PP_VarValue { |
| int as_int; |
| double as_double; |
| long long as_i64; |
| }; |
| |
| struct PP_Var { |
| int type; |
| int padding; |
| union PP_VarValue value; |
| }; |
| |
| // CHECK: define { i64, i64 } @f0() |
| struct PP_Var f0() { |
| struct PP_Var result = { 0, 0, 0 }; |
| return result; |
| } |
| |
| // CHECK-LABEL: define void @f1(i64 %p1.coerce0, i64 %p1.coerce1) |
| void f1(struct PP_Var p1) { while(1) {} } |
| |
| // long doubles are 64 bits on NaCl |
| // CHECK-LABEL: define double @f5() |
| long double f5(void) { |
| return 0; |
| } |
| |
| // CHECK-LABEL: define void @f6(i8 signext %a0, i16 signext %a1, i32 %a2, i64 %a3, i8* %a4) |
| void f6(char a0, short a1, int a2, long long a3, void *a4) { |
| } |
| |
| // CHECK-LABEL: define i64 @f8_1() |
| // CHECK-LABEL: define void @f8_2(i64 %a0.coerce) |
| union u8 { |
| long double a; |
| int b; |
| }; |
| union u8 f8_1() { while (1) {} } |
| void f8_2(union u8 a0) {} |
| |
| // CHECK-LABEL: define i64 @f9() |
| struct s9 { int a; int b; int : 0; } f9(void) { while (1) {} } |
| |
| // CHECK-LABEL: define void @f10(i64 %a0.coerce) |
| struct s10 { int a; int b; int : 0; }; |
| void f10(struct s10 a0) {} |
| |
| // CHECK-LABEL: define double @f11() |
| union { long double a; float b; } f11() { while (1) {} } |
| |
| // CHECK-LABEL: define i32 @f12_0() |
| // CHECK-LABEL: define void @f12_1(i32 %a0.coerce) |
| struct s12 { int a __attribute__((aligned(16))); }; |
| struct s12 f12_0(void) { while (1) {} } |
| void f12_1(struct s12 a0) {} |
| |
| // Check that sret parameter is accounted for when checking available integer |
| // registers. |
| // 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) |
| |
| struct s13_0 { long long f0[3]; }; |
| struct s13_1 { long long f0[2]; }; |
| struct s13_0 f13(int a, int b, int c, int d, |
| struct s13_1 e, int f) { while (1) {} } |
| |
| // CHECK-LABEL: define void @f20(%struct.s20* byval(%struct.s20) align 32 %x) |
| struct __attribute__((aligned(32))) s20 { |
| int x; |
| int y; |
| }; |
| void f20(struct s20 x) {} |
| |
| |
| // CHECK: declare void @func(i64) |
| typedef struct _str { |
| union { |
| long double a; |
| long c; |
| }; |
| } str; |
| |
| void func(str s); |
| str ss; |
| void f9122143() |
| { |
| func(ss); |
| } |