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/g++.dg/warn/Wconversion-pr34389.C | 54 +++++++++++++++++++++++++ 1 file changed, 54 insertions(+) create mode 100644 gcc/testsuite/g++.dg/warn/Wconversion-pr34389.C (limited to 'gcc/testsuite/g++.dg/warn/Wconversion-pr34389.C') diff --git a/gcc/testsuite/g++.dg/warn/Wconversion-pr34389.C b/gcc/testsuite/g++.dg/warn/Wconversion-pr34389.C new file mode 100644 index 000000000..43df8f902 --- /dev/null +++ b/gcc/testsuite/g++.dg/warn/Wconversion-pr34389.C @@ -0,0 +1,54 @@ +/* PR 34389 */ +/* { dg-do compile } */ +/* { dg-options "-Wconversion -Wsign-conversion" } */ +/* { dg-require-effective-target int32plus } */ +short mask1(short x) +{ + short y = 0x7fff; + return x & y; /* { dg-bogus "conversion" "bogus warning" } */ +} + +short mask2(short ssx) +{ + short ssy; + short ssz; + + ssz = ((int)ssx) & 0x7fff; + ssy = ((int)ssx) | 0x7fff; + ssz = ((int)ssx) ^ 0x7fff; + return ssx & 0x7fff; +} + +short mask3(int si, unsigned int ui) +{ + short ss; + unsigned short us; + + ss = si & 0x7fff; + ss = si & 0xAAAA; /* { dg-warning "conversion" } */ + ss = ui & 0x7fff; + ss = ui & 0xAAAA; /* { dg-warning "conversion" } */ + + us = si & 0x7fff; + us = si & 0xAAAA; /* { dg-warning "conversion" } */ + us = ui & 0x7fff; + us = ui & 0xAAAA; /* 0xAAAA is zero-extended, thus it masks the + upper bits of 'ui' making it fit in 'us'. */ + + return ss; +} + +short mask4(int x, int y) +{ + return x & y; /* { dg-warning "conversion" } */ +} + +short mask5(int x) +{ + return x & -1; /* { dg-warning "conversion" } */ +} + +short mask6(short x) +{ + return x & -1; +} -- cgit v1.2.3