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* [Bug bootstrap/67761] New: [6 Regression] Bootstrap failure on x86
@ 2015-09-29 12:10 hjl.tools at gmail dot com
2015-09-29 13:14 ` [Bug bootstrap/67761] " rguenth at gcc dot gnu.org
` (2 more replies)
0 siblings, 3 replies; 4+ messages in thread
From: hjl.tools at gmail dot com @ 2015-09-29 12:10 UTC (permalink / raw)
To: gcc-bugs
https://gcc.gnu.org/bugzilla/show_bug.cgi?id=67761
Bug ID: 67761
Summary: [6 Regression] Bootstrap failure on x86
Product: gcc
Version: 6.0
Status: UNCONFIRMED
Severity: normal
Priority: P3
Component: bootstrap
Assignee: unassigned at gcc dot gnu.org
Reporter: hjl.tools at gmail dot com
CC: ienkovich at gcc dot gnu.org
Target Milestone: ---
On Linux/x86, r228231 gave
make[6]: Leaving directory '/export/gnu/import/git/gcc-test-ia32/bld'
Comparing stages 2 and 3
warning: gcc/cc1obj-checksum.o differs
warning: gcc/cc1plus-checksum.o differs
warning: gcc/cc1-checksum.o differs
Bootstrap comparison failure!
gcc/coverage.o differs
gcc/dwarf2out.o differs
gcc/loop-iv.o differs
gcc/cp/init.o differs
gcc/tree-ssa-loop-ivcanon.o differs
gcc/predict.o differs
gcc/cfgloopmanip.o differs
gcc/tree-ssa-math-opts.o differs
gcc/function.o differs
gcc/tree-ssa-forwprop.o differs
gcc/tree-ssa-reassoc.o differs
gcc/tree-vect-loop.o differs
gcc/gimple-fold.o differs
gcc/loop-unroll.o differs
gcc/double-int.o differs
gcc/tree-ssa-alias.o differs
gcc/expr.o differs
gcc/gcov.o differs
gcc/i386-c.o differs
gcc/combine.o differs
gcc/tree-ssa-ccp.o differs
gcc/tree-chkp.o differs
gcc/fortran/trans-common.o differs
gcc/tree-vrp.o differs
gcc/var-tracking.o differs
gcc/tree-dfa.o differs
gcc/ipa-prop.o differs
gcc/gimple-ssa-strength-reduction.o differs
gcc/fold-const.o differs
gcc/dwarf2cfi.o differs
gcc/tree-ssa-sccvn.o differs
gcc/reload1.o differs
gcc/gcov-dump.o differs
gcc/mcf.o differs
gcc/tree-affine.o differs
gcc/tree-ssa-loop-niter.o differs
gcc/value-prof.o differs
libbacktrace/dwarf.o differs
libbacktrace/.libs/dwarf.o differs
libcpp/expr.o differs
libiberty/simple-object-coff.o differs
libiberty/pic/simple-object-coff.o differs
libiberty/pic/simple-object-xcoff.o differs
libiberty/simple-object-xcoff.o differs
Makefile:23262: recipe for target 'compare' failed
make[5]: *** [compare] Error 1
make[5]: Leaving directory '/export/gnu/import/git/gcc-test-ia32/bld'
Makefile:23241: recipe for target 'stage3-bubble' failed
make[4]: *** [stage3-bubble] Error 2
make[4]: Leaving directory '/export/gnu/import/git/gcc-test-ia32/bld'
Makefile:23304: recipe for target 'bootstrap' failed
make[3]: *** [bootstrap] Error 2
make[3]: Leaving directory '/export/gnu/import/git/gcc-test-ia32/bld'
14439.95user 447.65system 1:10:45elapsed 350%CPU (0avgtext+0avgdata
542356maxresident)k
144528inputs+14881128outputs (6202major+106936680minor)pagefaults 0swaps
Makefile:291: recipe for target 'bootstrap' failed
make[2]: *** [bootstrap] Error 2
when configured with
--with-arch=core2 --with-cpu=slm --prefix=/usr/6.0.0 --enable-clocale=gnu
--with-system-zlib --enable-shared --with-demangler-in-ld --enable-libmpx
i686-linux --with-fpmath=sse --enable-languages=c,c++,fortran,java,lto,objc
^ permalink raw reply [flat|nested] 4+ messages in thread
* [Bug bootstrap/67761] [6 Regression] Bootstrap failure on x86
2015-09-29 12:10 [Bug bootstrap/67761] New: [6 Regression] Bootstrap failure on x86 hjl.tools at gmail dot com
@ 2015-09-29 13:14 ` rguenth at gcc dot gnu.org
2015-09-29 15:41 ` ienkovich at gcc dot gnu.org
2015-09-30 15:16 ` ienkovich at gcc dot gnu.org
2 siblings, 0 replies; 4+ messages in thread
From: rguenth at gcc dot gnu.org @ 2015-09-29 13:14 UTC (permalink / raw)
To: gcc-bugs
https://gcc.gnu.org/bugzilla/show_bug.cgi?id=67761
Richard Biener <rguenth at gcc dot gnu.org> changed:
What |Removed |Added
----------------------------------------------------------------------------
Target| |i?86-*-*
Target Milestone|--- |6.0
^ permalink raw reply [flat|nested] 4+ messages in thread
* [Bug bootstrap/67761] [6 Regression] Bootstrap failure on x86
2015-09-29 12:10 [Bug bootstrap/67761] New: [6 Regression] Bootstrap failure on x86 hjl.tools at gmail dot com
2015-09-29 13:14 ` [Bug bootstrap/67761] " rguenth at gcc dot gnu.org
@ 2015-09-29 15:41 ` ienkovich at gcc dot gnu.org
2015-09-30 15:16 ` ienkovich at gcc dot gnu.org
2 siblings, 0 replies; 4+ messages in thread
From: ienkovich at gcc dot gnu.org @ 2015-09-29 15:41 UTC (permalink / raw)
To: gcc-bugs
https://gcc.gnu.org/bugzilla/show_bug.cgi?id=67761
Ilya Enkovich <ienkovich at gcc dot gnu.org> changed:
What |Removed |Added
----------------------------------------------------------------------------
Status|UNCONFIRMED |ASSIGNED
Last reconfirmed| |2015-09-29
Assignee|unassigned at gcc dot gnu.org |ienkovich at gcc dot gnu.org
Ever confirmed|0 |1
--- Comment #1 from Ilya Enkovich <ienkovich at gcc dot gnu.org> ---
The problem is in debug insns which are not ignored by introduced
transformation. It results in cost model affected by debug info and causes
these comparison failures. I'm testing this fix:
diff --git a/gcc/config/i386/i386.c b/gcc/config/i386/i386.c
index 6f2380f..7b3ffb0 100644
--- a/gcc/config/i386/i386.c
+++ b/gcc/config/i386/i386.c
@@ -2919,6 +2919,10 @@ scalar_chain::analyze_register_chain (bitmap candidates,
df_ref ref)
for (chain = DF_REF_CHAIN (ref); chain; chain = chain->next)
{
unsigned uid = DF_REF_INSN_UID (chain->ref);
+
+ if (!NONDEBUG_INSN_P (DF_REF_INSN (chain->ref)))
+ continue;
+
if (!DF_REF_REG_MEM_P (chain->ref))
{
if (bitmap_bit_p (insns, uid))
@@ -3279,7 +3283,7 @@ scalar_chain::convert_reg (unsigned regno)
bitmap_clear_bit (conv, DF_REF_INSN_UID (ref));
}
}
- else
+ else if (NONDEBUG_INSN_P (DF_REF_INSN (ref)))
{
replace_rtx (DF_REF_INSN (ref), reg, scopy);
df_insn_rescan (DF_REF_INSN (ref));
^ permalink raw reply [flat|nested] 4+ messages in thread
* [Bug bootstrap/67761] [6 Regression] Bootstrap failure on x86
2015-09-29 12:10 [Bug bootstrap/67761] New: [6 Regression] Bootstrap failure on x86 hjl.tools at gmail dot com
2015-09-29 13:14 ` [Bug bootstrap/67761] " rguenth at gcc dot gnu.org
2015-09-29 15:41 ` ienkovich at gcc dot gnu.org
@ 2015-09-30 15:16 ` ienkovich at gcc dot gnu.org
2 siblings, 0 replies; 4+ messages in thread
From: ienkovich at gcc dot gnu.org @ 2015-09-30 15:16 UTC (permalink / raw)
To: gcc-bugs
https://gcc.gnu.org/bugzilla/show_bug.cgi?id=67761
Ilya Enkovich <ienkovich at gcc dot gnu.org> changed:
What |Removed |Added
----------------------------------------------------------------------------
Status|ASSIGNED |RESOLVED
Resolution|--- |FIXED
--- Comment #2 from Ilya Enkovich <ienkovich at gcc dot gnu.org> ---
Fixed by r228292
^ permalink raw reply [flat|nested] 4+ messages in thread
end of thread, other threads:[~2015-09-30 15:16 UTC | newest]
Thread overview: 4+ messages (download: mbox.gz / follow: Atom feed)
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2015-09-29 12:10 [Bug bootstrap/67761] New: [6 Regression] Bootstrap failure on x86 hjl.tools at gmail dot com
2015-09-29 13:14 ` [Bug bootstrap/67761] " rguenth at gcc dot gnu.org
2015-09-29 15:41 ` ienkovich at gcc dot gnu.org
2015-09-30 15:16 ` ienkovich at gcc dot gnu.org
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