sh4-unknown-linux-gnu failed to build during compiling libgfortran
with
/exp/ldroot/dodes/xsh-gcc-orig/./gcc/xgcc
-B/exp/ldroot/dodes/xsh-gcc-orig/./gcc/ -B/usr/local/sh4-unknown-linux-gnu/bin/
-B/usr/local/sh4-unknown-linux-gnu/lib/ -isystem
/usr/local/sh4-unknown-linux-gnu/include -isystem
/usr/local/sh4-unknown-linux-gnu/sys-include -DHAVE_CONFIG_H -I.
-I../../../ORIG/trunk/libgfortran -iquote../../../ORIG/trunk/libgfortran/io
-I../../../ORIG/trunk/libgfortran/../gcc
-I../../../ORIG/trunk/libgfortran/../gcc/config -I../.././gcc -D_GNU_SOURCE
-std=gnu99 -Wall -Wstrict-prototypes -Wmissing-prototypes
-Wold-style-definition -Wextra -Wwrite-strings -fcx-fortran-rules
-ffunction-sections -fdata-sections -mieee -ftree-vectorize -funroll-loops -g
-O2 -MT matmul_i1.lo -MD -MP -MF .deps/matmul_i1.Tpo -c
../../../ORIG/trunk/libgfortran/generated/matmul_i1.c -fPIC -DPIC -o
.libs/matmul_i1.o
../../../ORIG/trunk/libgfortran/generated/matmul_i1.c: In function 'matmul_i1':
../../../ORIG/trunk/libgfortran/generated/matmul_i1.c:374:1: internal compiler
error: Segmentation fault
It starts to fail after
r158187 | bernds | 2010-04-10 21:30:29 +0900 (Sat, 10 Apr 2010) | 7 lines
* Makefile.in (web.o): Depend on insn-config.h and $(RECOG_H).
* web.c: Include "insn-config.h" and "recog.h".
(union_match_dups): New function.
(web_main): Call it.
(union_defs): Don't try to recognize match_dups.
and that segfault happens at the line
(*fun) (use_entry + DF_REF_ID (*dupref), entry + DF_REF_ID (*ref));
of union_match_dups for a null *ref.
--
Summary: web.c/union_match_dups segfaults for a null *ref on sh-
elf
Product: gcc
Version: 4.6.0
Status: UNCONFIRMED
Keywords: ice-on-valid-code
Severity: normal
Priority: P3
Component: rtl-optimization
AssignedTo: unassigned at gcc dot gnu dot org
ReportedBy: kkojima at gcc dot gnu dot org
GCC target triplet: sh-elf
http://gcc.gnu.org/bugzilla/show_bug.cgi?id=43742
