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From: "danglin at gcc dot gnu.org" <gcc-bugzilla@gcc.gnu.org>
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Subject: [Bug target/60752] New: [4.9 Regression] build/genautomata runs out of memory and is killed
Date: Thu, 03 Apr 2014 21:16:00 -0000
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X-Bugzilla-Version: 4.9.0
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http://gcc.gnu.org/bugzilla/show_bug.cgi?id=60752

            Bug ID: 60752
           Summary: [4.9 Regression] build/genautomata runs out of memory
                    and is killed
           Product: gcc
           Version: 4.9.0
            Status: UNCONFIRMED
          Severity: normal
          Priority: P3
         Component: target
          Assignee: unassigned at gcc dot gnu.org
          Reporter: danglin at gcc dot gnu.org
              Host: armv5tejl-unknown-linux-gnueabi
            Target: armv5tejl-unknown-linux-gnueabi
             Build: armv5tejl-unknown-linux-gnueabi

In stage1:]

g++ -c   -g -DIN_GCC    -fno-exceptions -fno-rtti -fasynchronous-unwind-tables
-
W -Wall -Wno-narrowing -Wwrite-strings -Wcast-qual -Wno-format
-Wmissing-format-
attribute -pedantic -Wno-long-long -Wno-variadic-macros -Wno-overlength-strings
  -DHAVE_CONFIG_H -DGENERATOR_FILE -I. -Ibuild -I../../gcc/gcc
-I../../gcc/gcc/b
uild -I../../gcc/gcc/../include  -I../../gcc/gcc/../libcpp/include -isystem
/hom
e/dave/opt/gnu/include \
                -o build/genautomata.o ../../gcc/gcc/genautomata.c
g++   -g -DIN_GCC    -fno-exceptions -fno-rtti -fasynchronous-unwind-tables -W
-Wall -Wno-narrowing -Wwrite-strings -Wcast-qual -Wno-format
-Wmissing-format-attribute -pedantic -Wno-long-long -Wno-variadic-macros
-Wno-overlength-strings   -DHAVE_CONFIG_H -DGENERATOR_FILE -static-libstdc++
-static-libgcc  -o build/genautomata \
            build/genautomata.o build/rtl.o build/read-rtl.o build/ggc-none.o
build/vec.o build/min-insn-modes.o build/gensupport.o build/print-rtl.o
build/read-md.o build/errors.o
../build-armv5tejl-unknown-linux-gnueabi/libiberty/libiberty.a -lm
build/genautomata ../../gcc/gcc/config/arm/arm.md \
          insn-conditions.md > tmp-automata.c
/bin/sh: line 1: 15093 Killed                  build/genautomata
../../gcc/gcc/config/arm/arm.md insn-conditions.md > tmp-automata.c
make[3]: *** [s-automata] Error 137

This occurs on a system with 512MB of memory (RD-6251-A).

Regression was introduced by following change:

2014-03-28  Kyrylo Tkachov  <kyrylo.tkachov@arm.com>

        * config/arm/aarch-common.c (aarch_crypto_can_dual_issue): New.
        * config/arm/aarch-common-protos.h (aarch_crypto_can_dual_issue):
        Declare extern.
        * config/arm/cortex-a53.md: Add reservations and bypass for crypto
        instructions as well as AdvancedSIMD loads.