https://gcc.gnu.org/bugzilla/show_bug.cgi?id=69996
Bug ID: 69996
Summary: [6 Regression] 186.crafty in SPEC CPU 2006 failed to
build
Product: gcc
Version: 6.0
Status: UNCONFIRMED
Severity: normal
Priority: P3
Component: middle-end
Assignee: unassigned at gcc dot gnu.org
Reporter: hjl.tools at gmail dot com
CC: law at gcc dot gnu.org
Target Milestone: ---
On x86, r233754 caused that 186.crafty in SPEC CPU 2006 failed to build:
gcc -O3 -funroll-loops -ffast-math -fwhole-program -flto=jobserver
-fuse-linker-plugin -DSPEC_CPU2000_LP64 searchr.o search.o repeat.o next.o
nextr.o history.o nexte.o quiesce.o evaluate.o movgen.o make.o unmake.o
lookup.o store.o attacks.o swap.o boolean.o draw.o utility.o valid.o drawn.o
edit.o enprise.o init.o input.o interupt.o iterate.o main.o option.o output.o
phase.o ponder.o preeval.o root.o setboard.o time.o validate.o -lm -o crafty
option.c: In function 'Option':
option.c:2772:7: warning: implicit declaration of function 'gets'
[-Wimplicit-function-declaration]
gets(buffer);
^~~~
make[4]: warning: jobserver unavailable: using -j1. Add '+' to parent make
rule.
main.c: In function 'main':
main.c:1881:5: error: loop verification on loop tree that needs fixup
int main(int argc, char **argv)
^
main.c:1881:5: internal compiler error: in verify_loop_structure, at
cfgloop.c:1639
0x64c97f verify_loop_structure()
../../src-trunk/gcc/cfgloop.c:1639
0xad8b0e checking_verify_loop_structure
../../src-trunk/gcc/cfgloop.h:324
0xad8b0e execute
../../src-trunk/gcc/tree-loop-distribution.c:1818
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make[4]: *** [/tmp/ccmCWG8m.ltrans4.ltrans.o] Error 1
lto-wrapper: fatal error: make returned 2 exit status
compilation terminated.
/usr/local/bin/ld: error: lto-wrapper failed
collect2: error: ld returned 1 exit status
specmake[3]: *** [crafty] Error 1
