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#! /bin/bash
# Compare the assembly language output for all the gcc tests.
# Copyright (C) 2009-2024 Free Software Foundation, Inc.
# Contributed by Paolo Bonzini.
#
# Invoke it as "bash compare-all-tests target1 target2 ... targetN".
# Assumptions are:
#
# 1) that the base and patched compilers reside respectively in
# base-$target-build and $target-build, where $target is the commandline
# argument to compare-all-tests, and should match the variables in the
# script itself so that the correct set of options is tested. Both
# compilers should be fully built (including target libraries).
#
# 2) that the testsuite has been run on the base compiler (since it's
# just compilation testing, using RUNTESTFLAGS=--target_board=basic-sim
# usually suffices).
#
# Tests that fail to compile on the base compiler are not compared.
alpha_opts='-mlong-double-64/-mieee -mlong-double-64 -mlong-double-128/-mieee -mlong-double-128'
arm_opts='-mthumb/-march=armv5t -mthumb/-march=armv6t2 -march=armv5 -mthumb/-march=armv6t2/-mfpu=vfp/-mfloat-abi=softfp -march=armv5/-mfpu=vfp/-mfloat-abi=softfp'
cris_opts='-march=v32 -march=v1'
h8300_opts='/ -mh -mh/-mn -ms -ms/-mn -msx -msx/-mn -mint32 -mh/-mint32 -mh/-mn/-mint32 -ms/-mint32 -ms/-mn/-mint32 -msx/-mint32 -msx/-mn/-mint32'
i386_opts='-m32 -m64 -m32/-msse/-msse2/-mfpmath=sse'
m32c_opts='-mcpu=r8c -mcpu=m16c -mcpu=m32c'
m68k_opts='-m68000 -m68020 -m68020/-m68881 -m68040/-m68881 -m68060/-m68881 -mcfv4e'
mips_opts='-msoft-float/-mgp32/-mips16 -mabi=32/-mfp32/-mgp32/-mips16 -mabi=o64/-mfp64/-mgp64/-mips16 -msoft-float/-mgp32 -mfp32/-mgp32 -march=mips64r2/-mabi=32/-mfp64/-mgp32 -msoft-float/-mgp64 -msingle-float/-mfp32/-mgp64 -mfp64/-mgp64'
mn10300_opts='-mam33 -mam33-2'
pa_opts='-march=2.0 -march=1.0 -march=1.1'
ppc_opts='-m32 -m64'
s390_opts='-m31 -m31/-mzarch -m64'
sh_opts='-m3 -m3e -m4 -m4a -m4al -m4/-mieee -m1 -m1/-mno-cbranchdi -m2a -m2a/-mieee -m2e -m2e/-mieee'
sparc_opts='-mcpu=v8/-m32 -mcpu=v9/-m32 -m64'
all_targets='alpha arm avr bfin cris fr30 frv h8300 ia64 iq2000 m32c m32r m68k mcore mips mmix mn10300 pa pdp11 ppc sh sparc v850 vax xstormy16 xtensa' # e500
test_one_file ()
{
local bdir pdir opts bline pline
bdir=base-$1-gcc-build
pdir=$1-gcc-build
bline=$2
pline=${2//$bdir/$pdir}
opts=${3//\// }
echo "$pline $opts"
$bline $opts 2>/dev/null >/dev/null || return 0
diff -L "$bdir/gcc/cc1 $opts" -L "$pdir/gcc/cc1 $opts" -u \
<( $bline $opts 2>&1 ) <( $pline $opts 2>&1 ) || { echo -n . >&2; return 1; }
}
test_all_opts ()
{
eval opts=\$${1}_opts
if test -z "$opts"; then
test_one_file $1 "$2"
else
for opt in $opts; do
test_one_file $1 "$2" $opt
done
fi
}
for target in ${*-$all_targets}; do
mkdir -p $target-gcc-build/gcc/testsuite/gcc
cp -R base-$target-gcc-build/gcc/testsuite/gcc/gcc.dg-struct-layout-1 \
$target-gcc-build/gcc/testsuite/gcc/gcc.dg-struct-layout-1
# Provide targ-include files for newlib
# for newlib_path in `echo base-$target-gcc-build/*/newlib`; do
# test -d $newlib_path && ln -sf ../../$newlib_path ${newlib_path/base-}
# done
echo -n Testing $target >&2
sed '/^Executing on host: /!d
/xgcc -B/!d
/ -E /d
/ -g/d
/ -print-prog-name=/d
s/^Executing on host: //
s/ *(timeout.*//
s/ -fverbose-asm / /
s/ -frtl-abstract-sequences / /
s/ -fdump[-a-z0-9]* / /g
s/ -da / /g
s/ -\{1,2\}save-temps / /
s/ -c / -S /
/ -S /! s/ -o / -S -o /
s/ -o [^ ]*/ -frandom-seed=0 -o -/' base-$target-gcc-build/gcc/testsuite/gcc/gcc.log | while read line; do
case "$line" in
*" -m"*) test_one_file $target "$line" "" ;;
*) test_all_opts $target "$line" ;;
esac
done > compare-$target.log
echo >&2
done
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