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authorJoern Rennecke <joern.rennecke@embecosm.com>2010-07-12 17:16:38 +0000
committerJoern Rennecke <amylaar@gcc.gnu.org>2010-07-12 18:16:38 +0100
commitea19b1ec7b2ba8000ce8cb40c0903b1d7ad52dac (patch)
treeac7e15a993d22e1e844178afcd934084e6ee7303 /gcc/genautomata.c
parente2b4f10338578f4fb49e7b47ced0c4178017b17c (diff)
downloadgcc-ea19b1ec7b2ba8000ce8cb40c0903b1d7ad52dac.tar.gz
re PR rtl-optimization/44752 (insn-automata.c: empty translation unit)
PR rtl-optimization/44752 * genautomata.c (main): Don't emit an empty file even if there is no automaton. From-SVN: r162083
Diffstat (limited to 'gcc/genautomata.c')
-rw-r--r--gcc/genautomata.c10
1 files changed, 10 insertions, 0 deletions
diff --git a/gcc/genautomata.c b/gcc/genautomata.c
index da7ec65e40c..821ec9e0c2f 100644
--- a/gcc/genautomata.c
+++ b/gcc/genautomata.c
@@ -9568,6 +9568,16 @@ main (int argc, char **argv)
write_automata ();
}
}
+ else
+ {
+ puts ("/* Generated automatically by the program `genautomata'\n"
+ " from the machine description file `md'. */\n\n"
+ "/* There is no automaton, but ISO C forbids empty\n"
+ " translation units, so include a header file with some\n"
+ " declarations, and the its pre-requisite header file. */\n"
+ "#include \"config.h\"\n"
+ "#include \"system.h\"\n");
+ }
fflush (stdout);
return (ferror (stdout) != 0 || have_error