diff options
author | Ben Cheng <bccheng@google.com> | 2014-03-25 22:37:19 -0700 |
---|---|---|
committer | Ben Cheng <bccheng@google.com> | 2014-03-25 22:37:19 -0700 |
commit | 1bc5aee63eb72b341f506ad058502cd0361f0d10 (patch) | |
tree | c607e8252f3405424ff15bc2d00aa38dadbb2518 /gcc-4.9/gcc/testsuite/gcc.dg/tree-ssa/pr20701.c | |
parent | 283a0bf58fcf333c58a2a92c3ebbc41fb9eb1fdb (diff) | |
download | toolchain_gcc-1bc5aee63eb72b341f506ad058502cd0361f0d10.tar.gz toolchain_gcc-1bc5aee63eb72b341f506ad058502cd0361f0d10.tar.bz2 toolchain_gcc-1bc5aee63eb72b341f506ad058502cd0361f0d10.zip |
Initial checkin of GCC 4.9.0 from trunk (r208799).
Change-Id: I48a3c08bb98542aa215912a75f03c0890e497dba
Diffstat (limited to 'gcc-4.9/gcc/testsuite/gcc.dg/tree-ssa/pr20701.c')
-rw-r--r-- | gcc-4.9/gcc/testsuite/gcc.dg/tree-ssa/pr20701.c | 41 |
1 files changed, 41 insertions, 0 deletions
diff --git a/gcc-4.9/gcc/testsuite/gcc.dg/tree-ssa/pr20701.c b/gcc-4.9/gcc/testsuite/gcc.dg/tree-ssa/pr20701.c new file mode 100644 index 000000000..3ddf48e6f --- /dev/null +++ b/gcc-4.9/gcc/testsuite/gcc.dg/tree-ssa/pr20701.c @@ -0,0 +1,41 @@ +/* { dg-do compile } */ +/* { dg-options "-O2 -fdump-tree-vrp1 -fno-early-inlining" } */ + +typedef struct { + int code; +} *rtx; + +static inline void *zero () +{ + return 0; +} +static inline int three () +{ + return 3; +} + +int +can_combine_p (rtx insn, rtx elt) +{ + rtx set; + + set = zero (); + if (insn->code == three ()) + set = insn; + else + { + set = elt; + if (set == zero ()) + return 0; + } + + if (set == zero ()) + return 1; + + return 0; +} + +/* Target with fno-delete-null-pointer-checks should not fold checks */ +/* { dg-final { scan-tree-dump-times "Folding predicate.*to 0" 1 "vrp1" { target { ! keeps_null_pointer_checks } } } } */ +/* { dg-final { scan-tree-dump-times "Folding predicate.*to 0" 0 "vrp1" { target { keeps_null_pointer_checks } } } } */ +/* { dg-final { cleanup-tree-dump "vrp1" } } */ |