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/compare5.c | 41 +++++++++++++++++++++++++++++++++++++++++ 1 file changed, 41 insertions(+) create mode 100644 gcc/testsuite/gcc.dg/compare5.c (limited to 'gcc/testsuite/gcc.dg/compare5.c') diff --git a/gcc/testsuite/gcc.dg/compare5.c b/gcc/testsuite/gcc.dg/compare5.c new file mode 100644 index 000000000..f19c575ef --- /dev/null +++ b/gcc/testsuite/gcc.dg/compare5.c @@ -0,0 +1,41 @@ +/* Test for a bogus warning on comparison between signed and unsigned. + Origin: Kaveh R. Ghazi 8/21/2001. */ + +/* { dg-do compile } */ +/* { dg-options "-Wsign-compare" } */ + +extern void bar(void); + +int foo(int x, int y, unsigned u) +{ + /* A *_DIV_EXPR is non-negative if both operands are. */ + + if (u < ((x=-22)/33)) /* { dg-warning "signed and unsigned" "DIV_EXPR" } */ + return x; + + if (u < ((x=22)/33)) + return x; + + if (u < ((x=22)/(y=33))) + return x; + + if (u < (((x&0x10000)?128:64) / ((y&0x10000)?8:4))) + return x; + + + /* A *_MOD_EXPR is non-negative if the first operand is. */ + + if (u < ((x=-22)%33)) /* { dg-warning "signed and unsigned" "MOD_EXPR" } */ + return x; + + if (u < ((x=22)%-33)) + return x; + + if (u < ((x==y)%-33)) + return x; + + if (u < (((x=22)/33)%-33)) + return x; + + return 0; +} -- cgit v1.2.3