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/var-expand1.c | 28 ++++++++++++++++++++++++++++ 1 file changed, 28 insertions(+) create mode 100644 gcc-4.9/gcc/testsuite/gcc.dg/var-expand1.c (limited to 'gcc-4.9/gcc/testsuite/gcc.dg/var-expand1.c') diff --git a/gcc-4.9/gcc/testsuite/gcc.dg/var-expand1.c b/gcc-4.9/gcc/testsuite/gcc.dg/var-expand1.c new file mode 100644 index 000000000..a784ea1a0 --- /dev/null +++ b/gcc-4.9/gcc/testsuite/gcc.dg/var-expand1.c @@ -0,0 +1,28 @@ +/* { dg-do compile } */ +/* We don't (and don't want to) perform this optimisation on soft-float + targets, where each addition is a library call. */ +/* { dg-require-effective-target hard_float } */ +/* { dg-options "-O2 -funroll-loops --fast-math -fvariable-expansion-in-unroller -fdump-rtl-loop2_unroll" } */ + +extern void abort (void); + +float array[30] = { 1,2,3,4,5,6,7,8,9,10 }; + +int foo (int n) +{ + unsigned i; + float accum = 1.0; + + for (i = 0; i < n; i++) + accum += array[i]; + + return accum; +} + +int main (void) +{ + return foo (10); +} + +/* { dg-final { scan-rtl-dump "Expanding Accumulator" "loop2_unroll" } } */ +/* { dg-final { cleanup-rtl-dump "loop*" } } */ -- cgit v1.2.3