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/vrp20.c | 28 +++++++++++++++++++++++++++ 1 file changed, 28 insertions(+) create mode 100644 gcc-4.9/gcc/testsuite/gcc.dg/tree-ssa/vrp20.c (limited to 'gcc-4.9/gcc/testsuite/gcc.dg/tree-ssa/vrp20.c') diff --git a/gcc-4.9/gcc/testsuite/gcc.dg/tree-ssa/vrp20.c b/gcc-4.9/gcc/testsuite/gcc.dg/tree-ssa/vrp20.c new file mode 100644 index 000000000..14da7df48 --- /dev/null +++ b/gcc-4.9/gcc/testsuite/gcc.dg/tree-ssa/vrp20.c @@ -0,0 +1,28 @@ +/* { dg-do compile } */ +/* { dg-options "-fwrapv -O1 -ftree-vrp -fdump-tree-vrp1" } */ + +extern void abort (); +extern void exit (int); + +int f (int a) { + if (a != 0) { + a = a > 0 ? a : -a; + if (a == 0) + return 1; + return 0; + } + return 0; +} + +int g (int b) { + if (b != 0) { + b = b > 0 ? b : -b; + if (b != 0) + return 0; + } + return 1; +} + +/* { dg-final { scan-tree-dump "Folding predicate a_. == 0 to 0" "vrp1" } } */ +/* { dg-final { scan-tree-dump "Folding predicate b_. != 0 to 1" "vrp1" } } */ +/* { dg-final { cleanup-tree-dump "vrp1" } } */ -- cgit v1.2.3