95 lines
3.0 KiB
C
95 lines
3.0 KiB
C
|
// RUN: %clang_cc1 %s -triple x86_64-apple-macosx10.7.2 -emit-llvm -o - | FileCheck %s
|
||
|
|
|
||
|
|
struct X { int x[6]; };
|
||
|
|
struct Y { char x[13]; struct X y; } __attribute((packed));
|
||
|
|
struct Y g;
|
||
|
|
void f(struct X);
|
||
|
|
struct X foo(void);
|
||
|
|
|
||
|
|
// <rdar://problem/10463337>
|
||
|
|
struct X test1() {
|
||
|
|
// CHECK: @test1
|
||
|
|
// CHECK: call void @llvm.memcpy.p0i8.p0i8.i64(i8* {{.*}}, i8* align 1 bitcast (%struct.X* getelementptr inbounds (%struct.Y, %struct.Y* @g, i32 0, i32 1) to i8*), i64 24, i1 false)
|
||
|
|
return g.y;
|
||
|
|
}
|
||
|
|
struct X test2() {
|
||
|
|
// CHECK: @test2
|
||
|
|
// CHECK: call void @llvm.memcpy.p0i8.p0i8.i64(i8* {{.*}}, i8* align 1 bitcast (%struct.X* getelementptr inbounds (%struct.Y, %struct.Y* @g, i32 0, i32 1) to i8*), i64 24, i1 false)
|
||
|
|
struct X a = g.y;
|
||
|
|
return a;
|
||
|
|
}
|
||
|
|
|
||
|
|
void test3(struct X a) {
|
||
|
|
// CHECK: @test3
|
||
|
|
// CHECK: call void @llvm.memcpy.p0i8.p0i8.i64(i8* align 1 bitcast (%struct.X* getelementptr inbounds (%struct.Y, %struct.Y* @g, i32 0, i32 1) to i8*), i8* {{.*}}, i64 24, i1 false)
|
||
|
|
g.y = a;
|
||
|
|
}
|
||
|
|
|
||
|
|
// <rdar://problem/10530444>
|
||
|
|
void test4() {
|
||
|
|
// CHECK: @test4
|
||
|
|
// CHECK: call void @llvm.memcpy.p0i8.p0i8.i64(i8* {{.*}}, i8* align 1 bitcast (%struct.X* getelementptr inbounds (%struct.Y, %struct.Y* @g, i32 0, i32 1) to i8*), i64 24, i1 false)
|
||
|
|
f(g.y);
|
||
|
|
}
|
||
|
|
|
||
|
|
// PR12395
|
||
|
|
int test5() {
|
||
|
|
// CHECK: @test5
|
||
|
|
// CHECK: load i32, i32* getelementptr inbounds (%struct.Y, %struct.Y* @g, i32 0, i32 1, i32 0, i64 0), align 1
|
||
|
|
return g.y.x[0];
|
||
|
|
}
|
||
|
|
|
||
|
|
// <rdar://problem/11220251>
|
||
|
|
void test6() {
|
||
|
|
// CHECK: @test6
|
||
|
|
// CHECK: call void @llvm.memcpy.p0i8.p0i8.i64(i8* align 1 bitcast (%struct.X* getelementptr inbounds (%struct.Y, %struct.Y* @g, i32 0, i32 1) to i8*), i8* align 4 %{{.*}}, i64 24, i1 false)
|
||
|
|
g.y = foo();
|
||
|
|
}
|
||
|
|
|
||
|
|
|
||
|
|
struct XBitfield {
|
||
|
|
unsigned b1 : 10;
|
||
|
|
unsigned b2 : 12;
|
||
|
|
unsigned b3 : 10;
|
||
|
|
};
|
||
|
|
struct YBitfield {
|
||
|
|
char x;
|
||
|
|
struct XBitfield y;
|
||
|
|
} __attribute((packed));
|
||
|
|
struct YBitfield gbitfield;
|
||
|
|
|
||
|
|
unsigned test7() {
|
||
|
|
// CHECK: @test7
|
||
|
|
// CHECK: load i32, i32* getelementptr inbounds (%struct.YBitfield, %struct.YBitfield* @gbitfield, i32 0, i32 1, i32 0), align 1
|
||
|
|
return gbitfield.y.b2;
|
||
|
|
}
|
||
|
|
|
||
|
|
void test8(unsigned x) {
|
||
|
|
// CHECK: @test8
|
||
|
|
// CHECK: load i32, i32* getelementptr inbounds (%struct.YBitfield, %struct.YBitfield* @gbitfield, i32 0, i32 1, i32 0), align 1
|
||
|
|
// CHECK: store i32 {{.*}}, i32* getelementptr inbounds (%struct.YBitfield, %struct.YBitfield* @gbitfield, i32 0, i32 1, i32 0), align 1
|
||
|
|
gbitfield.y.b2 = x;
|
||
|
|
}
|
||
|
|
|
||
|
|
struct TBitfield
|
||
|
|
{
|
||
|
|
long a;
|
||
|
|
char b;
|
||
|
|
unsigned c:15;
|
||
|
|
};
|
||
|
|
struct TBitfield tbitfield;
|
||
|
|
|
||
|
|
unsigned test9() {
|
||
|
|
// CHECK: @test9
|
||
|
|
// CHECK: load i16, i16* getelementptr inbounds (%struct.TBitfield, %struct.TBitfield* @tbitfield, i32 0, i32 2), align 1
|
||
|
|
return tbitfield.c;
|
||
|
|
}
|
||
|
|
|
||
|
|
void test10(unsigned x) {
|
||
|
|
// CHECK: @test10
|
||
|
|
// CHECK: load i16, i16* getelementptr inbounds (%struct.TBitfield, %struct.TBitfield* @tbitfield, i32 0, i32 2), align 1
|
||
|
|
// CHECK: store i16 {{.*}}, i16* getelementptr inbounds (%struct.TBitfield, %struct.TBitfield* @tbitfield, i32 0, i32 2), align 1
|
||
|
|
tbitfield.c = x;
|
||
|
|
}
|
||
|
|
|