зеркало из https://github.com/microsoft/clang.git
75 строки
1.1 KiB
C
75 строки
1.1 KiB
C
// RUN: clang-cc -triple i386-unknown-unknown %s -emit-llvm -o %t -O3
|
|
// RUN: grep "ret i32" %t | count 4
|
|
// RUN: grep "ret i32 1" %t | count 4
|
|
|
|
static int f0(int n) {
|
|
struct s0 {
|
|
int a : 30;
|
|
int b : 2;
|
|
long long c : 31;
|
|
} x = { 0xdeadbeef, 0xdeadbeef, 0xdeadbeef };
|
|
|
|
x.a += n;
|
|
x.b += n;
|
|
x.c += n;
|
|
|
|
return x.a + x.b + x.c;
|
|
}
|
|
|
|
int g0(void) {
|
|
return f0(-1) + 44335655;
|
|
}
|
|
|
|
static int f1(void) {
|
|
struct s1 {
|
|
int a:13;
|
|
char b;
|
|
unsigned short c:7;
|
|
} x;
|
|
|
|
x.a = -40;
|
|
x.b = 10;
|
|
x.c = 15;
|
|
|
|
return x.a + x.b + x.c;
|
|
}
|
|
|
|
int g1(void) {
|
|
return f1() + 16;
|
|
}
|
|
|
|
static int f2(void) {
|
|
struct s2 {
|
|
short a[3];
|
|
int b : 15;
|
|
} x;
|
|
|
|
x.a[0] = x.a[1] = x.a[2] = -40;
|
|
x.b = 10;
|
|
|
|
return x.b;
|
|
}
|
|
|
|
int g2(void) {
|
|
return f2() - 9;
|
|
}
|
|
|
|
static int f3(int n) {
|
|
struct s3 {
|
|
unsigned a:16;
|
|
unsigned b:28 __attribute__ ((packed));
|
|
} x = { 0xdeadbeef, 0xdeadbeef };
|
|
struct s4 {
|
|
signed a:16;
|
|
signed b:28 __attribute__ ((packed));
|
|
} y;
|
|
y.a = -0x56789abcL;
|
|
y.b = -0x56789abcL;
|
|
return ((y.a += x.a += n) +
|
|
(y.b += x.b += n));
|
|
}
|
|
|
|
int g3(void) {
|
|
return f3(20) + 130725747;
|
|
}
|