diff options
Diffstat (limited to 'clang/test/CodeGen/tentative-decls.c')
-rw-r--r-- | clang/test/CodeGen/tentative-decls.c | 38 |
1 files changed, 38 insertions, 0 deletions
diff --git a/clang/test/CodeGen/tentative-decls.c b/clang/test/CodeGen/tentative-decls.c new file mode 100644 index 0000000..d88c346 --- /dev/null +++ b/clang/test/CodeGen/tentative-decls.c @@ -0,0 +1,38 @@ +// RUN: %clang_cc1 -emit-llvm -o %t %s + +// RUN: grep '@r = common global \[1 x .*\] zeroinitializer' %t + +int r[]; +int (*a)[] = &r; + +struct s0; +struct s0 x; +// RUN: grep '@x = common global .struct.s0 zeroinitializer' %t + +struct s0 y; +// RUN: grep '@y = common global .struct.s0 zeroinitializer' %t +struct s0 *f0() { + return &y; +} + +struct s0 { + int x; +}; + +// RUN: grep '@b = common global \[1 x .*\] zeroinitializer' %t +int b[]; +int *f1() { + return b; +} + +// Check that the most recent tentative definition wins. +// RUN: grep '@c = common global \[4 x .*\] zeroinitializer' %t +int c[]; +int c[4]; + +// Check that we emit static tentative definitions +// RUN: grep '@c5 = internal global \[1 x .*\] zeroinitializer' %t +static int c5[]; +static int func() { return c5[0]; } +int callfunc() { return func(); } + |