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 --- .../testsuite/gcc.dg/tree-ssa/ssa-ifcombine-9.c | 22 ++++++++++++++++++++++ 1 file changed, 22 insertions(+) create mode 100644 gcc-4.9/gcc/testsuite/gcc.dg/tree-ssa/ssa-ifcombine-9.c (limited to 'gcc-4.9/gcc/testsuite/gcc.dg/tree-ssa/ssa-ifcombine-9.c') diff --git a/gcc-4.9/gcc/testsuite/gcc.dg/tree-ssa/ssa-ifcombine-9.c b/gcc-4.9/gcc/testsuite/gcc.dg/tree-ssa/ssa-ifcombine-9.c new file mode 100644 index 000000000..cb5750227 --- /dev/null +++ b/gcc-4.9/gcc/testsuite/gcc.dg/tree-ssa/ssa-ifcombine-9.c @@ -0,0 +1,22 @@ +/* { dg-do compile } */ +/* { dg-options "-O2 -fno-trapping-math -fdump-tree-ifcombine" } */ + +void f (); +enum Sign { NEG=-1, ZERO, POS }; + +static inline enum Sign sign (double x) +{ + if (x > 0) return POS; + if (x < 0) return NEG; + return ZERO; +} +void g (double x) +{ + if (sign (x) == NEG) f(); +} + +/* The above should be optimized to x < 0 by ifcombine. + The transformation would also be legal with -ftrapping-math. */ + +/* { dg-final { scan-tree-dump "optimizing.* < " "ifcombine" } } */ +/* { dg-final { cleanup-tree-dump "ifcombine" } } */ -- cgit v1.2.3