llvm-project/clang/test/CodeGen/tentative-decls.c

39 lines
871 B
C

// RUN: %clang_cc1 -emit-llvm -w -o - %s | FileCheck %s
// CHECK-DAG: @r = {{(dso_local )?}}global [1 x {{.*}}] zeroinitializer
int r[];
int (*a)[] = &r;
struct s0;
struct s0 x;
// CHECK-DAG: @x = {{(dso_local )?}}global %struct.s0 zeroinitializer
struct s0 y;
// CHECK-DAG: @y = {{(dso_local )?}}global %struct.s0 zeroinitializer
struct s0 *f0(void) {
return &y;
}
struct s0 {
int x;
};
// CHECK-DAG: @b = {{(dso_local )?}}global [1 x {{.*}}] zeroinitializer
int b[];
int *f1(void) {
return b;
}
// Check that the most recent tentative definition wins.
// CHECK-DAG: @c = {{(dso_local )?}}global [4 x {{.*}}] zeroinitializer
int c[];
int c[4];
// Check that we emit static tentative definitions
// CHECK-DAG: @c5 = internal global [1 x {{.*}}] zeroinitializer
static int c5[];
static int func(void) { return c5[0]; }
int callfunc(void) { return func(); }