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/sibcall-7.c | 46 ++++++++++++++++++++++++++++++++++++++++ 1 file changed, 46 insertions(+) create mode 100644 gcc/testsuite/gcc.dg/sibcall-7.c (limited to 'gcc/testsuite/gcc.dg/sibcall-7.c') diff --git a/gcc/testsuite/gcc.dg/sibcall-7.c b/gcc/testsuite/gcc.dg/sibcall-7.c new file mode 100644 index 000000000..6d59ca339 --- /dev/null +++ b/gcc/testsuite/gcc.dg/sibcall-7.c @@ -0,0 +1,46 @@ +/* Simple check that tail recursive call optimization is also + controlled by -foptimize-sibling-calls. + + Copyright (C) 2006 Free Software Foundation Inc. + Original test by Hans-Peter Nilsson */ + +/* On IA64 the call frame is allocated on the register stack, not the + normal stack. */ + +/* { dg-do run { target { ! "ia64-*-*" } } } */ +/* { dg-options "-O2 -fno-optimize-sibling-calls" } */ + + +extern void abort (void); + +extern void recurser_void (int); +extern void track (int); + +int main (void) +{ + recurser_void (0); + return 0; +} + +void recurser_void (int n) +{ + if (n == 0 || n == 7) + track (n); + + if (n == 10) + return; + + recurser_void (n + 1); +} + +void *trackpoint; + +void track (int n) +{ + char stackpos[1]; + + if (n == 0) + trackpoint = stackpos; + else if (n != 7 || trackpoint == stackpos) + abort (); +} -- cgit v1.2.3