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| author | Rainer Orth <ro@CeBiTec.Uni-Bielefeld.DE> | 2021-03-03 16:01:50 +0100 |
|---|---|---|
| committer | Rainer Orth <ro@CeBiTec.Uni-Bielefeld.DE> | 2021-03-03 16:01:50 +0100 |
| commit | fa6092d2cdc654d4b2e018929c0dbe13fbd4ea69 (patch) | |
| tree | 2cd7205c352943f7307b0c12ffbf027e35290e74 /gcc | |
| parent | 1dabbfb0f4a9fbdc77e1ea4db7302586f00895e1 (diff) | |
| download | gcc-fa6092d2cdc654d4b2e018929c0dbe13fbd4ea69.zip gcc-fa6092d2cdc654d4b2e018929c0dbe13fbd4ea69.tar.gz gcc-fa6092d2cdc654d4b2e018929c0dbe13fbd4ea69.tar.bz2 | |
sparcv9: Disable -Wuninitialized warnings breaking bootstrap [PR92002]
sparcv9 bootstrap has been broken for 1 1/2 years now by spurious
-Wuninitialized warnings:
In function ‘wide_int wi::max_value(unsigned int, signop)’,
inlined from ‘wide_int wi::max_value(unsigned int, signop)’ at /vol/gcc/src/hg/master/local/gcc/wide-int.cc:330:1:
/vol/gcc/src/hg/master/local/gcc/wide-int.cc:335:31: error: ‘<anonymous>.generic_wide_int<wide_int_storage>::<anonymous>.wide_int_storage::val[1]’ may be used uninitialized [-Werror=maybe-uninitialized]
335 | return shwi (-1, precision);
| ^
[...]
In function ‘wide_int get_nonzero_bits(const_tree)’,
inlined from ‘wide_int get_nonzero_bits(const_tree)’ at /vol/gcc/src/hg/master/local/gcc/tree-ssanames.c:531:1:
/vol/gcc/src/hg/master/local/gcc/tree-ssanames.c:544:67: error: ‘<anonymous>.generic_wide_int<wide_int_storage>::<anonymous>.wide_int_storage::val[1]’ may be used uninitialized [-Werror=maybe-uninitialized]
544 | | (HOST_WIDE_INT) pi->misalign, precision);
| ^
[...]
Before we ship yet another release with this issue, I suggest to at
least include a workaround of demoting them to warnings.
Tested on sparcv9-sun-solaris2.11.
2021-03-03 Rainer Orth <ro@CeBiTec.Uni-Bielefeld.DE>
gcc:
PR bootstrap/92002
* config/sparc/t-sparc (tree-ssanames.o-warn): Don't error for
-Wuninitialized, -Wmaybe-uninitialized.
(wide-int.o-warn): Likewise.
Diffstat (limited to 'gcc')
| -rw-r--r-- | gcc/config/sparc/t-sparc | 4 |
1 files changed, 4 insertions, 0 deletions
diff --git a/gcc/config/sparc/t-sparc b/gcc/config/sparc/t-sparc index de99ce7..64906e9 100644 --- a/gcc/config/sparc/t-sparc +++ b/gcc/config/sparc/t-sparc @@ -27,3 +27,7 @@ sparc-c.o: $(srcdir)/config/sparc/sparc-c.c sparc-d.o: $(srcdir)/config/sparc/sparc-d.c $(COMPILE) $< $(POSTCOMPILE) + +# Hack around PR bootstrap/92002. +tree-ssanames.o-warn += -Wno-error=uninitialized -Wno-error=maybe-uninitialized +wide-int.o-warn += -Wno-error=uninitialized -Wno-error=maybe-uninitialized |