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/uninit-2-O0.c | 52 ++++++++++++++++++++++++++++++++++++++ 1 file changed, 52 insertions(+) create mode 100644 gcc/testsuite/gcc.dg/uninit-2-O0.c (limited to 'gcc/testsuite/gcc.dg/uninit-2-O0.c') diff --git a/gcc/testsuite/gcc.dg/uninit-2-O0.c b/gcc/testsuite/gcc.dg/uninit-2-O0.c new file mode 100644 index 000000000..62a23fa6b --- /dev/null +++ b/gcc/testsuite/gcc.dg/uninit-2-O0.c @@ -0,0 +1,52 @@ +/* Spurious uninitialized variable warnings, case 2. + Taken from cpphash.c (macroexpand) */ +/* { dg-do compile } */ +/* { dg-options "-Wuninitialized" } */ + +struct definition +{ + int nargs; + int rest_args; +}; + +struct cpp_reader; + +enum cpp_token +{ + CPP_EOF, CPP_POP, CPP_COMMA, CPP_RPAREN +}; + +extern enum cpp_token macarg (struct cpp_reader *, int); + +void +macroexpand (struct cpp_reader *pfile, struct definition *defn) +{ + int nargs = defn->nargs; + + if (nargs >= 0) + { + enum cpp_token token; /* { dg-bogus "token" "uninitialized variable warning" } */ + int i, rest_args; + i = 0; + rest_args = 0; + do + { + if (rest_args) + continue; + if (i < nargs || (nargs == 0 && i == 0)) + { + /* if we are working on last arg which absorbs rest of args... */ + if (i == nargs - 1 && defn->rest_args) + rest_args = 1; + token = macarg (pfile, rest_args); + } + else + token = macarg (pfile, 0); + if (token == CPP_EOF || token == CPP_POP) + return; + + i++; + } + while (token == CPP_COMMA); + } +} -- cgit v1.2.3