From 554fd8c5195424bdbcabf5de30fdc183aba391bd Mon Sep 17 00:00:00 2001 From: upstream source tree Date: Sun, 15 Mar 2015 20:14:05 -0400 Subject: obtained gcc-4.6.4.tar.bz2 from upstream website; verified gcc-4.6.4.tar.bz2.sig; imported gcc-4.6.4 source tree from verified upstream tarball. downloading a git-generated archive based on the 'upstream' tag should provide you with a source tree that is binary identical to the one extracted from the above tarball. if you have obtained the source via the command 'git clone', however, do note that line-endings of files in your working directory might differ from line-endings of the respective files in the upstream repository. --- gcc/testsuite/gcc.dg/var-expand1.c | 28 ++++++++++++++++++++++++++++ 1 file changed, 28 insertions(+) create mode 100644 gcc/testsuite/gcc.dg/var-expand1.c (limited to 'gcc/testsuite/gcc.dg/var-expand1.c') diff --git a/gcc/testsuite/gcc.dg/var-expand1.c b/gcc/testsuite/gcc.dg/var-expand1.c new file mode 100644 index 000000000..3904407c4 --- /dev/null +++ b/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[10] = { 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