forked from OSchip/llvm-project
218 lines
5.5 KiB
C
218 lines
5.5 KiB
C
|
// RUN: %clang_cc1 -triple x86_64-unknown-linux-gnu -fms-extensions -emit-llvm < %s | FileCheck %s
|
||
|
|
||
|
// -------------
|
||
|
// Scalar integer
|
||
|
// -------------
|
||
|
__unaligned int x;
|
||
|
void test1(void) {
|
||
|
// CHECK: {{%.*}} = load i32, i32* @x, align 1
|
||
|
// CHECK: store i32 {{%.*}}, i32* @x, align 1
|
||
|
x++;
|
||
|
}
|
||
|
|
||
|
void test2(void) {
|
||
|
// CHECK: %y = alloca i32, align 1
|
||
|
// CHECK: {{%.*}} = load i32, i32* %y, align 1
|
||
|
// CHECK: store i32 {{%.*}}, i32* %y, align 1
|
||
|
__unaligned int y;
|
||
|
y++;
|
||
|
}
|
||
|
|
||
|
void test2_1(void) {
|
||
|
// CHECK: %y = alloca i32, align 1
|
||
|
// CHECK: store i32 1, i32* %y, align 1
|
||
|
__unaligned int y = 1;
|
||
|
}
|
||
|
|
||
|
// -------------
|
||
|
// Global pointer
|
||
|
// -------------
|
||
|
int *__unaligned p1;
|
||
|
void test3(void) {
|
||
|
|
||
|
// CHECK: {{%.*}} = load i32*, i32** @p1, align 1
|
||
|
// CHECK: {{%.*}} = load i32, i32* {{%.*}}, align 4
|
||
|
// CHECK: store i32 {{%.*}}, i32* {{%.*}}, align 4
|
||
|
(*p1)++;
|
||
|
}
|
||
|
|
||
|
int __unaligned *p2;
|
||
|
void test4(void) {
|
||
|
// CHECK: {{%.*}} = load i32*, i32** @p2, align 8
|
||
|
// CHECK: {{%.*}} = load i32, i32* {{%.*}}, align 1
|
||
|
// CHECK: store i32 {{%.*}}, i32* {{%.*}}, align 1
|
||
|
(*p2)++;
|
||
|
}
|
||
|
|
||
|
int __unaligned *__unaligned p3;
|
||
|
void test5(void) {
|
||
|
// CHECK: {{%.*}} = load i32*, i32** @p3, align 1
|
||
|
// CHECK: {{%.*}} = load i32, i32* {{%.*}}, align 1
|
||
|
// CHECK: store i32 {{%.*}}, i32* {{%.*}}, align 1
|
||
|
(*p3)++;
|
||
|
}
|
||
|
|
||
|
// -------------
|
||
|
// Local pointer
|
||
|
// -------------
|
||
|
void test6(void) {
|
||
|
// CHECK: %lp1 = alloca i32*, align 1
|
||
|
// CHECK: {{%.*}} = load i32*, i32** %lp1, align 1
|
||
|
// CHECK: {{%.*}} = load i32, i32* {{%.*}}, align 4
|
||
|
// CHECK: store i32 {{%.*}}, i32* {{%.*}}, align 4
|
||
|
int *__unaligned lp1;
|
||
|
(*lp1)++;
|
||
|
}
|
||
|
|
||
|
void test7(void) {
|
||
|
// CHECK: %lp2 = alloca i32*, align 8
|
||
|
// CHECK: {{%.*}} = load i32*, i32** %lp2, align 8
|
||
|
// CHECK: {{%.*}} = load i32, i32* {{%.*}}, align 1
|
||
|
// CHECK: store i32 {{%.*}}, i32* {{%.*}}, align 1
|
||
|
int __unaligned *lp2;
|
||
|
(*lp2)++;
|
||
|
}
|
||
|
|
||
|
void test8(void) {
|
||
|
// CHECK: %lp3 = alloca i32*, align 1
|
||
|
// CHECK: {{%.*}} = load i32*, i32** %lp3, align 1
|
||
|
// CHECK: {{%.*}} = load i32, i32* {{%.*}}, align 1
|
||
|
// CHECK: store i32 {{%.*}}, i32* {{%.*}}, align 1
|
||
|
int __unaligned *__unaligned lp3;
|
||
|
(*lp3)++;
|
||
|
}
|
||
|
|
||
|
// -------------
|
||
|
// Global array
|
||
|
// -------------
|
||
|
__unaligned int a[10];
|
||
|
void test9(void) {
|
||
|
// CHECK: {{%.*}} = load i32, i32* getelementptr inbounds ([10 x i32], [10 x i32]* @a, i64 0, i64 3), align 1
|
||
|
// CHECK: store i32 {{%.*}}, i32* getelementptr inbounds ([10 x i32], [10 x i32]* @a, i64 0, i64 3), align 1
|
||
|
(a[3])++;
|
||
|
}
|
||
|
|
||
|
// -------------
|
||
|
// Local array
|
||
|
// -------------
|
||
|
void test10(void) {
|
||
|
// CHECK: %la = alloca [10 x i32], align 1
|
||
|
// CHECK: {{%.*}} = getelementptr inbounds [10 x i32], [10 x i32]* %la, i64 0, i64 3
|
||
|
// CHECK: {{%.*}} = load i32, i32* {{%.*}}, align 1
|
||
|
// CHECK: store i32 {{%.*}}, i32* {{%.*}}, align 1
|
||
|
__unaligned int la[10];
|
||
|
(la[3])++;
|
||
|
}
|
||
|
|
||
|
// --------
|
||
|
// Typedefs
|
||
|
// --------
|
||
|
|
||
|
typedef __unaligned int UnalignedInt;
|
||
|
void test13() {
|
||
|
// CHECK: %i = alloca i32, align 1
|
||
|
// CHECK: {{%.*}} = load i32, i32* %i, align 1
|
||
|
// CHECK: store i32 {{%.*}}, i32* %i, align 1
|
||
|
UnalignedInt i;
|
||
|
i++;
|
||
|
}
|
||
|
|
||
|
typedef int Aligned;
|
||
|
typedef __unaligned Aligned UnalignedInt2;
|
||
|
void test14() {
|
||
|
// CHECK: %i = alloca i32, align 1
|
||
|
// CHECK: {{%.*}} = load i32, i32* %i, align 1
|
||
|
// CHECK: store i32 {{%.*}}, i32* %i, align 1
|
||
|
UnalignedInt2 i;
|
||
|
i++;
|
||
|
}
|
||
|
|
||
|
typedef UnalignedInt UnalignedInt3;
|
||
|
void test15() {
|
||
|
// CHECK: %i = alloca i32, align 1
|
||
|
// CHECK: {{%.*}} = load i32, i32* %i, align 1
|
||
|
// CHECK: store i32 {{%.*}}, i32* %i, align 1
|
||
|
UnalignedInt3 i;
|
||
|
i++;
|
||
|
}
|
||
|
|
||
|
// -------------
|
||
|
// Decayed types
|
||
|
// -------------
|
||
|
void test16(__unaligned int c[10]) {
|
||
|
// CHECK: {{%.*}} = alloca i32*, align 8
|
||
|
// CHECK: store i32* %c, i32** {{%.*}}, align 8
|
||
|
// CHECK: {{%.*}} = load i32*, i32** {{%.*}}, align 8
|
||
|
// CHECK: {{%.*}} = getelementptr inbounds i32, i32* {{%.*}}, i64 3
|
||
|
// CHECK: {{%.*}} = load i32, i32* {{%.*}}, align 1
|
||
|
// CHECK: store i32 {{%.*}}, i32* {{%.*}}, align 1
|
||
|
c[3]++;
|
||
|
}
|
||
|
|
||
|
// -----------
|
||
|
// __alignof__
|
||
|
// -----------
|
||
|
int test17(void) {
|
||
|
// CHECK: ret i32 1
|
||
|
return __alignof__(__unaligned int);
|
||
|
}
|
||
|
|
||
|
int test18(void) {
|
||
|
// CHECK: ret i32 1
|
||
|
__unaligned int a;
|
||
|
return __alignof__(a);
|
||
|
}
|
||
|
|
||
|
int test19(void) {
|
||
|
// CHECK: ret i32 1
|
||
|
__unaligned int a[10];
|
||
|
return __alignof__(a);
|
||
|
}
|
||
|
|
||
|
// -----------
|
||
|
// structs
|
||
|
// -----------
|
||
|
typedef
|
||
|
struct S1 {
|
||
|
char c;
|
||
|
int x;
|
||
|
} S1;
|
||
|
|
||
|
__unaligned S1 s1;
|
||
|
void test20(void) {
|
||
|
// CHECK: {{%.*}} = load i32, i32* getelementptr inbounds (%struct.S1, %struct.S1* @s1, i32 0, i32 1), align 1
|
||
|
// CHECK: store i32 {{%.*}}, i32* getelementptr inbounds (%struct.S1, %struct.S1* @s1, i32 0, i32 1), align 1
|
||
|
s1.x++;
|
||
|
}
|
||
|
|
||
|
void test21(void) {
|
||
|
// CHECK: {{%.*}} = alloca %struct.S1, align 1
|
||
|
// CHECK: {{%.*}} = getelementptr inbounds %struct.S1, %struct.S1* {{%.*}}, i32 0, i32 1
|
||
|
// CHECK: {{%.*}} = load i32, i32* {{%.*}}, align 1
|
||
|
// CHECK: store i32 {{%.*}}, i32* {{%.*}}, align 1
|
||
|
__unaligned S1 s1_2;
|
||
|
s1_2.x++;
|
||
|
}
|
||
|
|
||
|
typedef
|
||
|
struct __attribute__((packed)) S2 {
|
||
|
char c;
|
||
|
int x;
|
||
|
} S2;
|
||
|
|
||
|
__unaligned S2 s2;
|
||
|
void test22(void) {
|
||
|
// CHECK: {{%.*}} = load i32, i32* getelementptr inbounds (%struct.S2, %struct.S2* @s2, i32 0, i32 1), align 1
|
||
|
// CHECK: store i32 {{%.*}}, i32* getelementptr inbounds (%struct.S2, %struct.S2* @s2, i32 0, i32 1), align 1
|
||
|
s2.x++;
|
||
|
}
|
||
|
|
||
|
void test23(void) {
|
||
|
// CHECK: {{%.*}} = alloca %struct.S2, align 1
|
||
|
// CHECK: {{%.*}} = getelementptr inbounds %struct.S2, %struct.S2* {{%.*}}, i32 0, i32 1
|
||
|
// CHECK: {{%.*}} = load i32, i32* {{%.*}}, align 1
|
||
|
// CHECK: store i32 {{%.*}}, i32* {{%.*}}, align 1
|
||
|
__unaligned S2 s2_2;
|
||
|
s2_2.x++;
|
||
|
}
|