From 1bc5aee63eb72b341f506ad058502cd0361f0d10 Mon Sep 17 00:00:00 2001 From: Ben Cheng Date: Tue, 25 Mar 2014 22:37:19 -0700 Subject: Initial checkin of GCC 4.9.0 from trunk (r208799). Change-Id: I48a3c08bb98542aa215912a75f03c0890e497dba --- gcc-4.9/gcc/testsuite/gcc.dg/tree-ssa/pr33172.c | 42 +++++++++++++++++++++++++ 1 file changed, 42 insertions(+) create mode 100644 gcc-4.9/gcc/testsuite/gcc.dg/tree-ssa/pr33172.c (limited to 'gcc-4.9/gcc/testsuite/gcc.dg/tree-ssa/pr33172.c') diff --git a/gcc-4.9/gcc/testsuite/gcc.dg/tree-ssa/pr33172.c b/gcc-4.9/gcc/testsuite/gcc.dg/tree-ssa/pr33172.c new file mode 100644 index 000000000..17a40d4a3 --- /dev/null +++ b/gcc-4.9/gcc/testsuite/gcc.dg/tree-ssa/pr33172.c @@ -0,0 +1,42 @@ +/* { dg-do compile } */ +/* { dg-options "-O2 -fdump-tree-optimized" } */ + +struct abc { + void (*abc_call)(void); +}; + +/* + * Use only any one of the three definitions below at a time: + * + * 1. nothing optimized away. Good. + * 2. call_func() _not_ optimized away, but struct xyz is. gcc disappoints. + * 3. both call_func() and struct xyz optimized away. Nice. + */ + +/* 1 */ +/*extern int do_register(struct abc *xyz);*/ + +/* 2 */ +static inline int do_register(struct abc *xyz) +{ + return 0; +} + +/* 3 */ +/*#define do_register(xyz) do { (void)(xyz); } while (0)*/ + +static void call_func(void) +{ +} + +static struct abc xyz = { + .abc_call = call_func, +}; + +void func(void) +{ + do_register(&xyz); +} + +/* { dg-final { scan-tree-dump-not "call_func" "optimized"} } */ +/* { dg-final { cleanup-tree-dump "optimized" } } */ -- cgit v1.2.3