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[/] [openrisc/] [trunk/] [gnu-old/] [binutils-2.18.50/] [gas/] [testsuite/] [gas/] [sh/] [arch/] [arch.exp] - Blame information for rev 38

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# Copyright (C) 2004, 2005, 2007
2
# Free Software Foundation, Inc.
3
 
4
# This program is free software; you can redistribute it and/or modify
5
# it under the terms of the GNU General Public License as published by
6
# the Free Software Foundation; either version 3 of the License, or
7
# (at your option) any later version.
8
#
9
# This program is distributed in the hope that it will be useful,
10
# but WITHOUT ANY WARRANTY; without even the implied warranty of
11
# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
12
# GNU General Public License for more details.
13
#
14
# You should have received a copy of the GNU General Public License
15
# along with this program; if not, write to the Free Software
16
# Foundation, Inc., 51 Franklin Street - Fifth Floor, Boston, MA 02110-1301, USA.
17
 
18
# Please email any bugs, comments, and/or additions to this file to:
19
# binutils@sources.redhat.com
20
 
21
# This scripts tests all available SH architectures with all the assembler
22
# options related to the architecture. It ensures that those combinations
23
# which should not work do not work, and that those that should work
24
# produce the correct output architecture.
25
#
26
# It looks for files in the same directory as this file named sh*.s .
27
# Each file must contain all the instructions available within
28
# that architecture. The architecture name is inferred from the file name.
29
#
30
# The sh*.s files should NOT be hand edited. Whenever the script is run
31
# (e.g. with 'make check') it creates a set of new (usually identical) files
32
# in the /gas/testsuite directory. These are compared against the
33
# old ones in the testsuite. When the expected results change (or new
34
# architectures are added) these new files can be used to replace the old
35
# ones with no modification required.
36
#
37
# The script generates the architecture/option permutations automatically,
38
# but it reads the expected results from the file arch_expected.txt (also
39
# found in the same directory as this script).
40
#
41
# The arch_expected.txt file should NOT be hand edited. Whenever the script
42
# is run (e.g. with 'make check') it creates a new (usually identical) file
43
# named arch_results.txt in the /gas/testsuite directory. When the
44
# expected results change (or new architectures are added) this new file
45
# can be used to replace arch_expected.txt with no modification required.
46
 
47
if {[istarget sh*-*-*]} then {
48
 
49
 
50
# This procedure extracts the architecture name from the objdump output.
51
# If there is no architecture name (or objdump output changes significantly)
52
# then the behaviour is undefined, but it will most likely return junk.
53
 
54
proc get_sh_arch { ofile } {
55
    global comp_output
56
 
57
    objdump "-f $ofile"
58
    send_log $comp_output
59
 
60
    set comp_output [string replace $comp_output 0 \
61
            [expr [string first "architecture:" $comp_output] + 13] ""]
62
 
63
    return [string range $comp_output 0 [expr [string first "," $comp_output] - 1]]
64
}
65
 
66
 
67
# This procedure runs two tests:
68
#   Test 1: Check the assembler can assemble the given file with
69
#           given options.
70
#   Test 2: Check that the resultant architecture is as expected.
71
# It also writes an entry to the arch_results.txt file.
72
 
73
proc test_arch { file opt arch resultfile } {
74
    global comp_output
75
 
76
    set name [file tail $file]
77
    set rootname [file rootname $name]
78
 
79
    if [string equal $opt "default-options"] then {
80
        gas_run $name "-o ${rootname}-#${opt}#.o" ""
81
    } else {
82
        gas_run $name "$opt -o ${rootname}-#${opt}#.o" ""
83
    }
84
 
85
    if [want_no_output "$rootname file should assemble with $opt"] then {
86
        set result [get_sh_arch "${rootname}-#${opt}#.o"]
87
        puts $resultfile [format "%-20s %-25s %s" $file $opt $result]
88
 
89
        if {$result == $arch} then {
90
            pass "$rootname file with $opt should assemble to arch $arch"
91
            file delete "${rootname}-#${opt}#.o"
92
        } else {
93
            send_log $comp_output
94
            fail "$rootname file with $opt should assemble to arch $arch"
95
        }
96
    } else {
97
        puts $resultfile [format "%-20s %-25s ERROR" $file $opt]
98
        untested "$rootname file with $opt should assemble to arch $arch"
99
    }
100
 
101
}
102
 
103
 
104
# This procedure tests that a file that is not suposed to assemble
105
# with a given option does, in fact, not assemble.
106
# It also writes an entry to the arch_results.txt file.
107
 
108
proc test_arch_error { file opt resultfile} {
109
    global comp_output
110
 
111
    set name [file tail $file]
112
    set rootname [file rootname $name]
113
 
114
    if [string equal $opt "default-options"] then {
115
        gas_run $name "-o ${rootname}-#${opt}#.o" ""
116
    } else {
117
        gas_run $name "$opt -o ${rootname}-#${opt}#.o" ""
118
    }
119
 
120
    if [string match "" $comp_output] then {
121
        fail "$rootname file with $opt should not assemble"
122
        puts $resultfile [format "%-20s %-25s [get_sh_arch ${rootname}-#${opt}#.o]" $file $opt]
123
    } else {
124
        pass "$rootname file with $opt should not assemble"
125
        puts $resultfile [format "%-20s %-25s ERROR" $file $opt]
126
    }
127
}
128
 
129
# These tests are not suitable for sh-coff because
130
# coff does not store the architecture information.
131
 
132
if [istarget sh*-*-elf] then {
133
    global subdir srcdir
134
 
135
    # Find all the architectures and generate the
136
    # list of options we will test.
137
 
138
    set filelist [lsort -ascii [glob "$srcdir/$subdir/sh*.s"]]
139
    set optlist {"default-options" "-dsp" "-isa=any" "-isa=dsp" "-isa=fp"}
140
    foreach file $filelist {
141
        set arch [file rootname [file tail $file]]
142
        lappend optlist "-isa=$arch" "-isa=${arch}-up"
143
    }
144
 
145
    # Initialise the results file
146
 
147
    set outfile [open "arch_results.txt" w 0666]
148
    puts $outfile "# Generated file. DO NOT EDIT"
149
    puts $outfile "#"
150
    puts $outfile "# This file is generated by gas/testsuite/gas/sh/arch/arch.exp ."
151
    puts $outfile "# It contains the expected results of the tests."
152
    puts $outfile "# If the tests are failing because the expected results"
153
    puts $outfile "# have changed then run 'make check' and copy the new file"
154
    puts $outfile "# from /gas/testsuite/arch_results.txt"
155
    puts $outfile "# to   /gas/testsuite/gas/sh/arch/arch_expected.txt ."
156
    puts $outfile "# Make sure the new expected results are ALL correct."
157
    puts $outfile "#"
158
    puts $outfile [format "# %-18s %-25s %s" "FILE" "OPTION" "OUTPUT"]
159
    puts $outfile [format "# %-18s %-25s %s" "----" "------" "------"]
160
 
161
    # Open the expected results file and skip the header
162
 
163
    set infile [open "$srcdir/$subdir/arch_expected.txt" r]
164
    while {[gets $infile line] >= 0 && [string match {\#*} $line]} {send_log "reading '$line'\n"}
165
 
166
    foreach file $filelist {
167
        foreach opt $optlist {
168
            set name [file tail $file]
169
            set rootname [file rootname $name]
170
 
171
            # Decode the expected result from the file
172
 
173
            scan $line "%s %s %s" exfile exopt exarch
174
            send_log "exfile = '$exfile', exopt = '$exopt', exarch = '$exarch'\n"
175
            send_log "  name = '$name',   opt = '$opt'\n"
176
 
177
            if {[string equal $exfile $name] && [string equal $exopt $opt]} then {
178
                # The expected result file makes sense and
179
                # appears up-to-date (the file and options match)
180
 
181
                if {[string equal $exarch "ERROR"]} then {
182
                    test_arch_error $name $opt $outfile
183
                } else {
184
                    test_arch $name $opt $exarch $outfile
185
                }
186
            } else {
187
                # The expected result file isn't right somehow
188
                # so just try any old test. This will cause
189
                # many failures, but will generate the results file.
190
 
191
                test_arch $name $opt $rootname $outfile
192
            }
193
 
194
            # Read the next line from the expected result file.
195
            # This is at the end because the process of skipping
196
            # the header reads the first real line
197
 
198
            if [gets $infile line] then {
199
                send_log "reading '$line'\n"
200
            }
201
        }
202
    }
203
 
204
    close $infile
205
    close $outfile
206
}
207
 
208
 
209
#########################################################################
210
# Generate one sh*.s file for each architecture defined in sh-opc.h
211
# This will contain all the instructions valid on that platform
212
#
213
# This code produces pass or fail reports for each instruction
214
# in order to ensure that problems are visible to the developer,
215
# rather than just warnings hidden in the log file.
216
 
217
# These variables will contains the architecture
218
# and instruction data extracted from sh-opc.h
219
array set arches {}
220
set archcount 0
221
array set insns {}
222
set insncount 0
223
 
224
# Pull the architecture inheritance macros out of sh-opc.h
225
# Pull all the insns out of the sh-opc.h file.
226
send_log "Reading sh-opc.h\n"
227
send_log "--------------------------------------------------------\n"
228
spawn -noecho cat "$srcdir/../../opcodes/sh-opc.h"   ;# -open doesn't seem to be reliable
229
expect {
230
    -re {#define\s+arch_([^ ]*)_up\s*\(([^)]*)\)} {
231
        set arches($archcount) [string map {_ -} $expect_out(1,string)]
232
        set arches($archcount,descendents) [string map {_ -} $expect_out(2,string)]
233
        incr archcount
234
        pass "Architecture arch_$expect_out(1,string) read OK"
235
        exp_continue
236
    }
237
    # Match all 32 bit opcodes
238
    -re {(?x)           # enable expanded regexp syntax
239
         ^/\*           # open C comment at start of input
240
         (?:\s*\S+){2}  #   2 binary words (for 32 bit opcodes)
241
     \s+ ([^*]+?)       #   instruction mnemonics (must not leave comment)
242
     \s* \*/            # close C comment
243
     \s* \{             # open brace of data initialiser
244
         (?:[^\}]+\}){2}#   2 brace pairs (operands and nibbles)
245
     \s* ,              #   comma
246
     \s* arch_(\S+)_up  #   architecture name
247
     \s* \|             #   literal or
248
     \s* arch_op32      #   32 bit opcode indicator
249
     \s* \}             # close brace of data initialiser
250
        } {
251
            set insns(insn,$insncount) $expect_out(1,string)
252
            set insns(arch,$insncount) [string map {_ -} $expect_out(2,string)]
253
            set insns(context,$insncount) $expect_out(0,string)
254
            incr insncount
255
            pass "Instruction '$expect_out(1,string)' read OK"
256
            exp_continue
257
        }
258
    # Special case: Match the repeat pseudo op
259
    -re {(?x)           # enable expanded regexp syntax
260
         ^/\*           # open C comment at start of input
261
     \s* repeat         #   repeat does not have a bit pattern
262
     \s+ start\s+end    #   don't read fake operands as such (replaced below)
263
     \s+ ([^*]+?)       #   instruction operand
264
     \s* \*/            # close C comment
265
     \s* \{             # open brace of data initialiser
266
         (?:[^\}]+\}){2}#   2 brace pairs (operands and nibbles)
267
     \s* ,              #   comma
268
     \s* arch_(\S+)_up  #   architecture name
269
     \s* \}             # close brace of data initialiser
270
        } {
271
            set insns(insn,$insncount) "repeat 10 20 $expect_out(1,string)"
272
            set insns(arch,$insncount) [string map {_ -} $expect_out(2,string)]
273
            set insns(context,$insncount) $expect_out(0,string)
274
            incr insncount
275
            pass "Instruction '$expect_out(1,string)' read OK"
276
            exp_continue
277
        }
278
    # Match all 16 bit opcodes
279
    -re {(?x)           # enable expanded regexp syntax
280
         ^/\*           # open C comment at start of input
281
     \s* \S+            #   1 binary word (for 16 bit opcodes)
282
     \s+ ([^*]+?)       #   instruction mnemonics (must not leave comment)
283
     \s* \*/            # close C comment
284
     \s* \{             # open brace of data initialiser
285
         (?:[^\}]+\}){2}#   2 brace pairs (operands and nibbles)
286
     \s* ,              #   comma
287
     \s* arch_(\S+)_up  #   architecture name
288
     \s* \}             # close brace of data initialiser
289
        } {
290
            set insns(insn,$insncount) $expect_out(1,string)
291
            set insns(arch,$insncount) [string map {_ -} $expect_out(2,string)]
292
            set insns(context,$insncount) $expect_out(0,string)
293
            incr insncount
294
            pass "Instruction '$expect_out(1,string)' read OK"
295
            exp_continue
296
        }
297
    # Match all remaining possible instructions (error detection)
298
    -re {(?x)           # enable expanded regexp syntax
299
         ^/\*           # open C comment at start of input
300
         (?:[^*]*(?:\*[^/])?)+ # match contents of comment allowing *
301
         \*/            # close C comment
302
     \s* \{             # open brace of data initialiser
303
         (?:[^\}]+\}){2}#   2 brace pairs (operands and nibbles)
304
     \s* ,              #   comma
305
         [^\}]*
306
         arch           #   look for 'arch' anywhere before closing brace
307
         [^\}]*
308
         \}             # close brace of data initialiser
309
        } {
310
            fail "Found something that looks like an instruction but cannot be decoded:\n\t$expect_out(0,string)"
311
            exp_continue
312
        }
313
    # No match so move to next (possible) comment
314
    -re {^.+?((?=/\*)|(?=\#\s*define))} exp_continue
315
}
316
send_log "--------------------------------------------------------\n"
317
 
318
if {$archcount == 0} then {
319
    fail "Unable to read any architectures from sh-opc.h"
320
} else {
321
    pass "Read architecture data from sh-opc.h"
322
}
323
if {$insncount == 0} then {
324
    fail "Unable to read any instructions from sh-opc.h"
325
} else {
326
    pass "Read instruction data from sh-opc.h"
327
}
328
 
329
# Munge the insns such that they will assemble
330
# Each instruction in sh-opc.h has an example format
331
# with placeholders for the parameters. These placeholders
332
# need to be replaced with real registers and constants
333
# as appropriate in order to assemble correctly.
334
for {set i 0} {$i < $insncount} {incr i} {
335
    set out $insns(insn,$i)
336
    if {[regexp {AY_.{3,4}_N} $insns(context,$i)] == 1} then {
337
        regsub -nocase {} $out {r6} out
338
    } else {
339
        regsub -nocase {} $out {r4} out
340
    }
341
    regsub -nocase {} $out {r5} out
342
    if {[regexp {IMM0_20BY8} $insns(context,$i)] == 1} then {
343
        regsub -nocase {} $out {1024} out
344
    } else {
345
        regsub -nocase {} $out {4} out
346
    }
347
    regsub -nocase {} $out {.+8} out
348
    regsub -nocase {} $out {2048} out
349
    regsub -nocase {} $out {8} out
350
    regsub -nocase {Rn_BANK} $out {r1_bank} out
351
    regsub -nocase {Rm_BANK} $out {r2_bank} out
352
    regsub -nocase {} $out {fr1} out
353
    regsub -nocase {} $out {fr2} out
354
    regsub -nocase {} $out {dr2} out
355
    regsub -nocase {} $out {dr4} out
356
    regsub -nocase {} $out {fv0} out
357
    regsub -nocase {} $out {fv4} out
358
    regsub -nocase {} $out {xd2} out
359
    regsub -nocase {} $out {xd4} out
360
    regsub -nocase (XMTRX_M4) $out {xmtrx} out
361
    regsub -nocase () $out {x1} out
362
    regsub -nocase () $out {y0} out
363
    regsub -nocase () $out {a1} out
364
    regsub -nocase () $out {m0} out
365
    regsub -nocase () $out {r1} out
366
    regsub -nocase () $out {r3} out
367
    regsub -nocase () $out {y1} out
368
    regsub -nocase () $out {y1} out
369
    regsub -nocase () $out {a0} out
370
    regsub -nocase () $out {a0} out
371
    regsub (Se) $out {x0} out
372
    regsub (Sf) $out {y0} out
373
    regsub (Dg) $out {m0} out
374
    # Put in a dct in order to differentiate between
375
    # conditional and non-conditional pabs and prnd
376
    # i.e. between sh-dsp and sh4al-dsp
377
    if {[regexp {PPIC} $insns(context,$i)] == 1} then {
378
        set out "dct $out"
379
    }
380
    # Make sure the proper alignments are ok.
381
    if [regexp {i8p4} $insns(context,$i)] {
382
      set out ".align 2\n\t$out"
383
    }
384
 
385
    # Write back the results.
386
    set insns(insn,$i) $out
387
    set insns(context,$i) [string map {\n " " \r " "} $insns(context,$i)]
388
}
389
 
390
# Initialise the data structure for the inheritance
391
array set archtree {}
392
for {set a 0} {$a < $archcount} {incr a} {
393
    set archtree($arches($a)) {}
394
}
395
 
396
# For each architecture, extract its immediate parents
397
for {set a 0} {$a < $archcount} {incr a} {
398
    set s $arches($a,descendents)
399
    regsub -all {[\s|]+} $s { } s
400
    foreach word [split $s { }] {
401
        # Word should be one of arch-..., | (or), or arch-...-up
402
        # We only want the -up information
403
        # Note that the _ -> - translation was done above
404
        if {[regexp {^arch-(.*)-up$} $word match arch] == 1} then {
405
            # $arch is the descendent of $arches($a),
406
            # so $arches($a) is the parent of $arch
407
            lappend archtree($arch) $arches($a)
408
        }
409
    }
410
}
411
 
412
# Propagate the inhertances through the list
413
# Iterate to ensure all inheritances are found (necessary?)
414
set changesmade 1
415
while {$changesmade == 1} {
416
    set changesmade 0
417
    foreach a [array names archtree] {
418
        foreach b [array names archtree] {
419
            # If arch 'a' is a parent of arch 'b' then b inherits from a
420
            if {[lsearch -exact $archtree($b) $a] != -1} then {
421
                # Only add each arch if it is not already present
422
                foreach arch $archtree($a) {
423
                    if {[lsearch -exact $archtree($b) $arch] == -1} then {
424
                        lappend archtree($b) $arch
425
                        set changesmade 1
426
                    }
427
                }
428
            }
429
        }
430
    }
431
}
432
 
433
# Generate the assembler file for each architecture
434
# Also count up how many instructions should be valid for each architecture
435
array set insns_valid {}
436
for {set arch 0} {$arch < $archcount} {incr arch} {
437
    set insns_valid($arches($arch)) 0
438
    set fd [open $arches($arch).s w 0666]
439
    puts $fd "! Generated file. DO NOT EDIT.\n!"
440
    puts $fd "! This file was generated by gas/testsuite/gas/sh/arch/arch.exp ."
441
    puts $fd "! This file should contain every instruction valid on"
442
    puts $fd "! architecture $arches($arch) but no more."
443
    puts $fd "! If the tests are failing because the expected results"
444
    puts $fd "! have changed then run 'make check' and copy the new file"
445
    puts $fd "! from /gas/testsuite/$arches($arch).s"
446
    puts $fd "! to   /gas/testsuite/gas/sh/arch/$arches($arch).s ."
447
    puts $fd "! Make sure there are no unexpected or missing instructions."
448
    puts $fd "\n\t.section .text"
449
    puts $fd "[string map {- _} $arches($arch)]:"
450
    puts $fd "! Instructions introduced into $arches($arch)"
451
    for {set i 0} {$i < $insncount} {incr i} {
452
        if [string equal $arches($arch) $insns(arch,$i)] then {
453
            puts $fd [format "\t%-25s ;!%s" $insns(insn,$i) $insns(context,$i)]
454
            incr insns_valid($arches($arch))
455
        }
456
    }
457
    puts $fd "\n! Instructions inherited from ancestors: [lsort -increasing $archtree($arches($arch))]"
458
    for {set i 0} {$i < $insncount} {incr i} {
459
        if {[string equal $arches($arch) $insns(arch,$i)] != 1 && [lsearch -exact $archtree($arches($arch)) $insns(arch,$i)] != -1} then {
460
            puts $fd [format "\t%-25s ;!%s" $insns(insn,$i) $insns(context,$i)]
461
            incr insns_valid($arches($arch))
462
        }
463
    }
464
    close $fd
465
}
466
 
467
 
468
###################################################################
469
# Compare the newly created sh*.s files with the existing
470
# ones in the testsuite
471
 
472
for {set arch 0} {$arch < $archcount} {incr arch} {
473
    send_log "diff $srcdir/$subdir/$arches($arch).s $arches($arch).s\n"
474
    catch "exec diff $srcdir/$subdir/$arches($arch).s $arches($arch).s" diff_output
475
    if {[string equal $diff_output ""] == 0} then {
476
        send_log $diff_output
477
        fail "Check $arches($arch) architecture has not changed"
478
    } else {
479
        pass "Check $arches($arch) architecture has not changed"
480
    }
481
}
482
 
483
 
484
###################################################################
485
# Generate an assembler file with every instruction
486
# Then use it to test how many failures there are for
487
# each architecture. If this does not match the predicted value
488
# then the assembler accepts too many instructions for a given
489
# architecture.
490
 
491
 
492
set fd [open "all_insns.s" w 0666]
493
for {set i 0} {$i < $insncount} {incr i} {
494
    puts $fd [format "\t%-25s ;!%s" $insns(insn,$i) $insns(context,$i)]
495
}
496
close $fd
497
 
498
# Assemble the all_insns.s file for each isa and count how many failures there are
499
foreach arch [array names insns_valid] {
500
    set errormessages 0
501
    set expected [expr $insncount - $insns_valid($arch)]
502
 
503
    # The -Z option ensures that all error messages are output,
504
    # even those from later phases of assembly (such as offset range errors)
505
    send_log "$AS -Z -isa=$arch all_insns.s -o /dev/null\n"
506
    spawn $AS -Z -isa=$arch all_insns.s -o /dev/null
507
    expect Error: {incr errormessages; exp_continue}
508
 
509
    if {$errormessages == $expected} then {
510
        pass "$expected insns should not assemble on $arch"
511
    } else {
512
        if {([istarget sh*-*-coff] || [istarget sh*-hms]) && [string match {*dsp} $arch]} {
513
            xfail "$expected insns should not assemble on $arch ($errormessages did not)"
514
        } else {
515
            fail "$expected insns should not assemble on $arch ($errormessages did not)"
516
        }
517
    }
518
}
519
 
520
 
521
} ;# istarget sh*-*-*

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