diff options
| author | Mark Mitchell <mark@codesourcery.com> | 2004-12-30 00:31:00 +0000 |
|---|---|---|
| committer | Mark Mitchell <mmitchel@gcc.gnu.org> | 2004-12-30 00:31:00 +0000 |
| commit | d9fa123367aeaf3cf316d4c0c3bcd8dea047dee8 (patch) | |
| tree | d04e684098be16fada657ab84d0137889a239e9b /gcc/cp/cvt.c | |
| parent | d98fd13429d8819de437e6a681aebea99e3edbfe (diff) | |
| download | gcc-d9fa123367aeaf3cf316d4c0c3bcd8dea047dee8.zip gcc-d9fa123367aeaf3cf316d4c0c3bcd8dea047dee8.tar.gz gcc-d9fa123367aeaf3cf316d4c0c3bcd8dea047dee8.tar.bz2 | |
re PR c++/19190 (warning "value computed is not used" emitted too often)
PR c++/19190
* cvt.c (convert_to_void): Do not use STRIP_NOPs.
PR c++/19190
* g++.dg/warn/Wunused-10.C: New test.
From-SVN: r92721
Diffstat (limited to 'gcc/cp/cvt.c')
| -rw-r--r-- | gcc/cp/cvt.c | 7 |
1 files changed, 5 insertions, 2 deletions
diff --git a/gcc/cp/cvt.c b/gcc/cp/cvt.c index b68cf0f..a3ec5d4 100644 --- a/gcc/cp/cvt.c +++ b/gcc/cp/cvt.c @@ -929,8 +929,11 @@ convert_to_void (tree expr, const char *implicit) turned into a call to "__builtin_memcpy", with a conversion of the return value to an appropriate type.) So, to avoid false positives, we strip - conversions. */ - STRIP_NOPS (e); + conversions. Do not use STRIP_NOPs because it will + not strip conversions to "void", as that is not a + mode-preserving conversion. */ + while (TREE_CODE (e) == NOP_EXPR) + e = TREE_OPERAND (e, 0); code = TREE_CODE (e); class = TREE_CODE_CLASS (code); |