134 lines
2.4 KiB
C
134 lines
2.4 KiB
C
// RUN: %clang_cc1 -triple i386-unknown-unknown -emit-llvm %s -o - | FileCheck %s
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void f1() {
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// Scalars in braces.
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int a = { 1 };
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}
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void f2() {
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int a[2][2] = { { 1, 2 }, { 3, 4 } };
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int b[3][3] = { { 1, 2 }, { 3, 4 } };
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int *c[2] = { &a[1][1], &b[2][2] };
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int *d[2][2] = { {&a[1][1], &b[2][2]}, {&a[0][0], &b[1][1]} };
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int *e[3][3] = { {&a[1][1], &b[2][2]}, {&a[0][0], &b[1][1]} };
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char ext[3][3] = {".Y",".U",".V"};
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}
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typedef void (* F)(void);
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extern void foo(void);
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struct S { F f; };
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void f3() {
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struct S a[1] = { { foo } };
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}
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// Constants
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// CHECK: @g3 = constant i32 10
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// CHECK: @f4.g4 = internal constant i32 12
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const int g3 = 10;
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int f4() {
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static const int g4 = 12;
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return g4;
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}
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// PR6537
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typedef union vec3 {
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struct { double x, y, z; };
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double component[3];
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} vec3;
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vec3 f5(vec3 value) {
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return (vec3) {{
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.x = value.x
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}};
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}
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// rdar://problem/8154689
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void f6() {
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int x;
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long ids[] = { (long) &x };
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}
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// CHECK: @test7 = global{{.*}}{ i32 0, [4 x i8] c"bar\00" }
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// PR8217
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struct a7 {
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int b;
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char v[];
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};
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struct a7 test7 = { .b = 0, .v = "bar" };
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// PR279 comment #3
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char test8(int X) {
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char str[100000] = "abc"; // tail should be memset.
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return str[X];
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// CHECK: @test8(
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// CHECK: call void @llvm.memset
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// CHECK: store i8 97
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// CHECK: store i8 98
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// CHECK: store i8 99
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// CHECK-NOT: getelementptr
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// CHECK: load
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}
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void bar(void*);
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// PR279
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int test9(int X) {
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int Arr[100] = { X }; // Should use memset
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bar(Arr);
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// CHECK: @test9
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// CHECK: call void @llvm.memset
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// CHECK-NOT: store i32 0
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// CHECK: call void @bar
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}
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struct a {
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int a, b, c, d, e, f, g, h, i, j, k, *p;
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};
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struct b {
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struct a a,b,c,d,e,f,g;
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};
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int test10(int X) {
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struct b S = { .a.a = X, .d.e = X, .f.e = 0, .f.f = 0, .f.p = 0 };
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bar(&S);
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// CHECK: @test10
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// CHECK: call void @llvm.memset
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// CHECK-NOT: store i32 0
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// CHECK: call void @bar
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}
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// PR9257
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struct test11S {
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int A[10];
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};
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void test11(struct test11S *P) {
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*P = (struct test11S) { .A = { [0 ... 3] = 4 } };
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// CHECK: @test11
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// CHECK: store i32 4
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// CHECK: store i32 4
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// CHECK: store i32 4
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// CHECK: store i32 4
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// CHECK: ret void
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}
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// Verify that we can convert a recursive struct with a memory that returns
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// an instance of the struct we're converting.
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struct test12 {
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struct test12 (*p)(void);
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} test12g;
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void test13(int x) {
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struct X { int a; int b : 10; int c; };
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struct X y = {.c = x};
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// CHECK: @test13
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// CHECK: and i16 {{.*}}, -1024
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}
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