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jeremybenn |
# Copyright 2005, 2006, 2007 Free Software Foundation, Inc.
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# This program is free software; you can redistribute it and/or modify
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# it under the terms of the GNU General Public License as published by
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# the Free Software Foundation; either version 3 of the License, or
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# (at your option) any later version.
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#
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# This program is distributed in the hope that it will be useful,
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# but WITHOUT ANY WARRANTY; without even the implied warranty of
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# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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# GNU General Public License for more details.
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#
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# You should have received a copy of the GNU General Public License
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# along with GCC; see the file COPYING3. If not see
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# .
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# DejaGnu test driver around Mike Cowlishaw's testsuite for decimal
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# decimal arithmetic ("decTest"). See:
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# .
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#
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# Contributed by Ben Elliston .
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set TORTURE_OPTIONS [list {} -O1 -O2 -O3 -Os -msoft-float]
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proc target-specific-flags {} {
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set result "-frounding-math "
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return $result
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}
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# Load support procs (borrow these from c-torture).
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load_lib c-torture.exp
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load_lib target-supports.exp
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# Skip these tests for targets that don't support this extension.
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if { ![check_effective_target_dfp] } {
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return
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}
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# The list format is [coefficient, max-exponent, min-exponent].
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set properties(_Decimal32) [list 7 96 -95]
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set properties(_Decimal64) [list 16 384 -383]
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set properties(_Decimal128) [list 34 6144 -6143]
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# Operations implemented by the compiler.
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set operators(add) {+}
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set operators(compare) {==}
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set operators(divide) {/}
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set operators(multiply) {*}
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set operators(subtract) {-}
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set operators(minus) {-}
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set operators(plus) {+}
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set operators(apply) {}
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# Operations imlemented by the library.
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set libfuncs(abs) fabsl
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set libfuncs(squareroot) sqrtl
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set libfuncs(max) fmaxl
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set libfuncs(min) fminl
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set libfuncs(quantize) quantize
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set libfuncs(samequantum) samequantum
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set libfuncs(power) powl
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set libfuncs(toSci) unknown
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set libfuncs(tosci) unknown
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set libfuncs(toEng) unknown
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set libfuncs(toeng) unknown
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set libfuncs(divideint) unknown
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set libfuncs(rescale) unknown
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set libfuncs(remainder) unknown
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set libfuncs(remaindernear) unknown
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set libfuncs(normalize) unknown
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set libfuncs(tointegral) unknown
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set libfuncs(trim) unknown
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# Run all of the tests listed in TESTCASES by invoking df-run-test on
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# each. Skip tests that not included by the user invoking runtest
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# with the foo.exp=test.c syntax.
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proc dfp-run-tests { testcases } {
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global runtests
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foreach test $testcases {
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# If we're only testing specific files and this isn't one of
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# them, skip it.
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if ![runtest_file_p $runtests $test] continue
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dfp-run-test $test
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}
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}
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# Run a single test case named by TESTCASE.
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# Called for each test by dfp-run-tests.
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proc dfp-run-test { testcase } {
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set fd [open $testcase r]
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while {[gets $fd line] != -1} {
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switch -regexp -- $line {
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{^[ \t]*--.*$} {
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# Ignore comments.
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}
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{^[ \t]*$} {
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# Ignore blank lines.
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}
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{^[ \t]*[^:]*:[^:]*} {
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regsub -- {[ \t]*--.*$} $line {} line
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process-directive $line
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}
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default {
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process-test-case $testcase $line
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}
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}
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}
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close $fd
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}
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# Return the appropriate constant from for MODE.
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proc c-rounding-mode { mode } {
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switch [string tolower $mode] {
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"floor" { return 0 } # FE_DEC_DOWNWARD
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"half_even" { return 1 } # FE_DEC_TONEARESTFROMZERO
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"half_up" { return 2 } # FE_DEC_TONEAREST
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"down" { return 3 } # FE_DEC_TOWARDZERO
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"ceiling" { return 4 } # FE_DEC_UPWARD
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}
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error "unsupported rounding mode ($mode)"
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}
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# Return a string of C code that forms the preamble to perform the
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# test named ID.
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proc c-test-preamble { id } {
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append result "/* Machine generated test case for $id */\n"
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append result "\n"
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append result "\#include \n"
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append result "\#include \n"
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append result "\#include \n"
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append result "\n"
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append result "int main ()\n"
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append result "\{"
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return $result
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}
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# Return a string of C code that forms the postable to the test named ID.
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proc c-test-postamble { id } {
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return "\}"
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}
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# Generate a C unary expression that applies OPERATION to OP.
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proc c-unary-expression {operation op} {
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global operators
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global libfuncs
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if [catch {set result "$operators($operation) $op"}] {
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# If operation isn't in the operators or libfuncs arrays,
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# we'll throw an error. That's what we want.
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# FIXME: append d32, etc. here.
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set result "$libfuncs($operation) ($op)"
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}
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return $result
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}
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# Generate a C binary expression that applies OPERATION to OP1 and OP2.
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proc c-binary-expression {operation op1 op2} {
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global operators
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global libfuncs
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if [catch {set result "$op1 $operators($operation) $op2"}] {
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# If operation isn't in the operators or libfuncs arrays,
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# we'll throw an error. That's what we want.
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set result "$libfuncs($operation) ($op1, $op2)"
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}
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return $result
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}
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# Return the most appropriate C type (_Decimal32, etc) for this test.
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proc c-decimal-type { } {
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global directives
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if [catch {set precision $directives(precision)}] {
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set precision "_Decimal128"
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}
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if { $precision == 7 } {
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set result "_Decimal32"
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} elseif {$precision == 16} {
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set result "_Decimal64"
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} elseif {$precision == 34} {
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set result "_Decimal128"
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} else {
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error "Unsupported precision"
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}
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return $result
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}
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# Return the size of the most appropriate C type, in bytes.
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proc c-sizeof-decimal-type { } {
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switch [c-decimal-type] {
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"_Decimal32" { return 4 }
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"_Decimal64" { return 8 }
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"_Decimal128" { return 16 }
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}
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error "Unsupported precision"
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}
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# Return the right literal suffix for CTYPE.
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proc c-type-suffix { ctype } {
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switch $ctype {
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"_Decimal32" { return "df" }
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"_Decimal64" { return "dd" }
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"_Decimal128" { return "dl" }
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"float" { return "f" }
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"long double" { return "l" }
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}
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return ""
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}
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proc nan-p { operand } {
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if {[string match "NaN*" $operand] || [string match "-NaN*" $operand]} {
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return 1
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} else {
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return 0
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}
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}
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proc infinity-p { operand } {
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if {[string match "Inf*" $operand] || [string match "-Inf*" $operand]} {
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return 1
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} else {
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return 0
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}
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}
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proc isnan-builtin-name { } {
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set bits [expr [c-sizeof-decimal-type] * 8]
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return "__builtin_isnand$bits"
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}
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proc isinf-builtin-name { } {
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set bits [expr [c-sizeof-decimal-type] * 8]
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return "__builtin_isinfd$bits"
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}
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# Return a string that declares a C union containing the decimal type
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# and an unsigned char array of the right size.
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proc c-union-decl { } {
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append result " union {\n"
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append result " [c-decimal-type] d;\n"
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append result " unsigned char bytes\[[c-sizeof-decimal-type]\];\n"
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append result " } u;"
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return $result
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}
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proc transform-hex-constant {value} {
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regsub \# $value {} value
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regsub -all (\.\.) $value {0x\1, } bytes
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return [list $bytes]
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}
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| 260 |
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# Create a C program file (named using ID) containing a test for a
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# binary OPERATION on OP1 and OP2 that expects RESULT and CONDITIONS.
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proc make-c-test {testcase id operation result conditions op1 {op2 "NONE"}} {
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global directives
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set filename ${id}.c
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set outfd [open $filename w]
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puts $outfd [c-test-preamble $id]
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puts $outfd [c-union-decl]
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if {[string compare $result ?] != 0} {
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if {[string index $result 0] == "\#"} {
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puts $outfd " static unsigned char compare\[[c-sizeof-decimal-type]\] = [transform-hex-constant $result];"
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}
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| 274 |
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}
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| 275 |
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if {[string compare $op2 NONE] == 0} {
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if {[string index $op1 0] == "\#"} {
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| 277 |
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puts $outfd " static unsigned char fill\[[c-sizeof-decimal-type]\] = [transform-hex-constant $op1];"
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| 278 |
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}
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| 279 |
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}
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| 280 |
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| 281 |
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puts $outfd ""
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| 282 |
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puts $outfd " /* FIXME: Set rounding mode with fesetround() once in libc. */"
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| 283 |
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puts $outfd " __dfp_set_round ([c-rounding-mode $directives(rounding)]);"
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| 284 |
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puts $outfd ""
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| 285 |
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| 286 |
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# Build the expression to be tested.
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| 287 |
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if {[string compare $op2 NONE] == 0} {
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| 288 |
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if {[string index $op1 0] == "\#"} {
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| 289 |
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puts $outfd " memcpy (u.bytes, fill, [c-sizeof-decimal-type]);"
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| 290 |
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} else {
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| 291 |
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puts $outfd " u.d = [c-unary-expression $operation [c-operand $op1]];"
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| 292 |
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}
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| 293 |
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} else {
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| 294 |
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puts $outfd " u.d = [c-binary-expression $operation [c-operand $op1] [c-operand $op2]];"
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| 295 |
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}
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| 296 |
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| 297 |
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# Test the result.
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| 298 |
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if {[string compare $result ?] != 0} {
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| 299 |
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# Not an undefined result ..
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| 300 |
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if {[string index $result 0] == "\#"} {
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| 301 |
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# Handle hex comparisons.
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| 302 |
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puts $outfd " return memcmp (u.bytes, compare, [c-sizeof-decimal-type]);"
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| 303 |
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} elseif {[nan-p $result]} {
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| 304 |
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puts $outfd " return ![isnan-builtin-name] (u.d);"
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| 305 |
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} elseif {[infinity-p $result]} {
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| 306 |
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puts $outfd " return ![isinf-builtin-name] (u.d);"
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| 307 |
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} else {
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| 308 |
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# Ordinary values.
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| 309 |
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puts $outfd " return !(u.d == [c-operand $result]);"
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| 310 |
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}
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| 311 |
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} else {
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| 312 |
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puts $outfd " return 0;"
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| 313 |
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}
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| 314 |
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| 315 |
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puts $outfd [c-test-postamble $id]
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| 316 |
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close $outfd
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| 317 |
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return $filename
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| 318 |
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}
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| 319 |
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| 320 |
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# Is the test supported for this target?
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| 321 |
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| 322 |
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proc supported-p { id op } {
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| 323 |
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global directives
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| 324 |
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global libfuncs
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| 325 |
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| 326 |
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# Ops that are unsupported. Many of these tests fail because they
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| 327 |
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# do not tolerate the C front-end rounding the value of floating
|
| 328 |
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# point literals to suit the type of the constant. Otherwise, by
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| 329 |
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# treating the `apply' operator like C assignment, some of them do
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| 330 |
|
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# pass.
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| 331 |
|
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switch -- $op {
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| 332 |
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apply { return 0 }
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| 333 |
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}
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| 334 |
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| 335 |
|
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# Ditto for the following miscellaneous tests.
|
| 336 |
|
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switch $id {
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| 337 |
|
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addx1130 { return 0 }
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| 338 |
|
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addx1131 { return 0 }
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| 339 |
|
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addx1132 { return 0 }
|
| 340 |
|
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addx1133 { return 0 }
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| 341 |
|
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addx1134 { return 0 }
|
| 342 |
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addx1135 { return 0 }
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| 343 |
|
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addx1136 { return 0 }
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| 344 |
|
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addx1138 { return 0 }
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| 345 |
|
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addx1139 { return 0 }
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| 346 |
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addx1140 { return 0 }
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| 347 |
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addx1141 { return 0 }
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| 348 |
|
|
addx1142 { return 0 }
|
| 349 |
|
|
addx1151 { return 0 }
|
| 350 |
|
|
addx1152 { return 0 }
|
| 351 |
|
|
addx1153 { return 0 }
|
| 352 |
|
|
addx1154 { return 0 }
|
| 353 |
|
|
addx1160 { return 0 }
|
| 354 |
|
|
addx690 { return 0 }
|
| 355 |
|
|
mulx263 { return 0 }
|
| 356 |
|
|
subx947 { return 0 }
|
| 357 |
|
|
}
|
| 358 |
|
|
|
| 359 |
|
|
if [info exist libfuncs($op)] {
|
| 360 |
|
|
# No library support for now.
|
| 361 |
|
|
return 0
|
| 362 |
|
|
}
|
| 363 |
|
|
if [catch {c-rounding-mode $directives(rounding)}] {
|
| 364 |
|
|
# Unsupported rounding mode.
|
| 365 |
|
|
return 0
|
| 366 |
|
|
}
|
| 367 |
|
|
if [catch {c-decimal-type}] {
|
| 368 |
|
|
# Unsupported precision.
|
| 369 |
|
|
return 0
|
| 370 |
|
|
}
|
| 371 |
|
|
return 1
|
| 372 |
|
|
}
|
| 373 |
|
|
|
| 374 |
|
|
# Break LINE into a list of tokens. Be sensitive to quoting.
|
| 375 |
|
|
# There has to be a better way to do this :-|
|
| 376 |
|
|
|
| 377 |
|
|
proc tokenize { line } {
|
| 378 |
|
|
set quoting 0
|
| 379 |
|
|
set tokens [list]
|
| 380 |
|
|
|
| 381 |
|
|
foreach char [split $line {}] {
|
| 382 |
|
|
if {!$quoting} {
|
| 383 |
|
|
if { [info exists token] && $char == " " } {
|
| 384 |
|
|
if {[string compare "$token" "--"] == 0} {
|
| 385 |
|
|
# Only comments remain.
|
| 386 |
|
|
return $tokens
|
| 387 |
|
|
}
|
| 388 |
|
|
lappend tokens $token
|
| 389 |
|
|
unset token
|
| 390 |
|
|
} else {
|
| 391 |
|
|
if {![info exists token] && $char == "'" } {
|
| 392 |
|
|
set quoting 1
|
| 393 |
|
|
} else {
|
| 394 |
|
|
if { $char != " " } {
|
| 395 |
|
|
append token $char
|
| 396 |
|
|
}
|
| 397 |
|
|
}
|
| 398 |
|
|
}
|
| 399 |
|
|
} else {
|
| 400 |
|
|
# Quoting.
|
| 401 |
|
|
if { $char == "'" } {
|
| 402 |
|
|
set quoting 0
|
| 403 |
|
|
if [info exists token] {
|
| 404 |
|
|
lappend tokens $token
|
| 405 |
|
|
unset token
|
| 406 |
|
|
} else {
|
| 407 |
|
|
lappend tokens {}
|
| 408 |
|
|
}
|
| 409 |
|
|
} else {
|
| 410 |
|
|
append token $char
|
| 411 |
|
|
}
|
| 412 |
|
|
}
|
| 413 |
|
|
}
|
| 414 |
|
|
# Flush any residual token.
|
| 415 |
|
|
if {[info exists token] && [string compare $token "--"]} {
|
| 416 |
|
|
lappend tokens $token
|
| 417 |
|
|
}
|
| 418 |
|
|
return $tokens
|
| 419 |
|
|
}
|
| 420 |
|
|
|
| 421 |
|
|
# Process a directive in LINE.
|
| 422 |
|
|
|
| 423 |
|
|
proc process-directive { line } {
|
| 424 |
|
|
global directives
|
| 425 |
|
|
set keyword [string tolower [string trim [lindex [split $line :] 0]]]
|
| 426 |
|
|
set value [string tolower [string trim [lindex [split $line :] 1]]]
|
| 427 |
|
|
set directives($keyword) $value
|
| 428 |
|
|
}
|
| 429 |
|
|
|
| 430 |
|
|
# Produce a C99-valid floating point literal.
|
| 431 |
|
|
|
| 432 |
|
|
proc c-operand {operand} {
|
| 433 |
|
|
set bits [expr 8 * [c-sizeof-decimal-type]]
|
| 434 |
|
|
|
| 435 |
|
|
switch -glob -- $operand {
|
| 436 |
|
|
"Inf*" { return "__builtin_infd${bits} ()" }
|
| 437 |
|
|
"-Inf*" { return "- __builtin_infd${bits} ()" }
|
| 438 |
|
|
"NaN*" { return "__builtin_nand${bits} (\"\")" }
|
| 439 |
|
|
"-NaN*" { return "- __builtin_nand${bits} (\"\")" }
|
| 440 |
|
|
"sNaN*" { return "__builtin_nand${bits} (\"\")" }
|
| 441 |
|
|
"-sNaN*" { return "- __builtin_nand${bits} (\"\")" }
|
| 442 |
|
|
}
|
| 443 |
|
|
|
| 444 |
|
|
if {[string first . $operand] < 0 && \
|
| 445 |
|
|
[string first E $operand] < 0 && \
|
| 446 |
|
|
[string first e $operand] < 0} {
|
| 447 |
|
|
append operand .
|
| 448 |
|
|
}
|
| 449 |
|
|
set suffix [c-type-suffix [c-decimal-type]]
|
| 450 |
|
|
return [append operand $suffix]
|
| 451 |
|
|
}
|
| 452 |
|
|
|
| 453 |
|
|
# Process an arithmetic test in LINE from TESTCASE.
|
| 454 |
|
|
|
| 455 |
|
|
proc process-test-case { testcase line } {
|
| 456 |
|
|
set testfile [file tail $testcase]
|
| 457 |
|
|
|
| 458 |
|
|
# Compress multiple spaces down to one.
|
| 459 |
|
|
regsub -all { *} $line { } line
|
| 460 |
|
|
|
| 461 |
|
|
set args [tokenize $line]
|
| 462 |
|
|
if {[llength $args] < 5} {
|
| 463 |
|
|
error "Skipping invalid test: $line"
|
| 464 |
|
|
return
|
| 465 |
|
|
}
|
| 466 |
|
|
|
| 467 |
|
|
set id [string trim [lindex $args 0]]
|
| 468 |
|
|
set operation [string trim [lindex $args 1]]
|
| 469 |
|
|
set operand1 [string trim [lindex $args 2]]
|
| 470 |
|
|
|
| 471 |
|
|
if { [string compare [lindex $args 3] -> ] == 0 } {
|
| 472 |
|
|
# Unary operation.
|
| 473 |
|
|
set operand2 NONE
|
| 474 |
|
|
set result_index 4
|
| 475 |
|
|
set cond_index 5
|
| 476 |
|
|
} else {
|
| 477 |
|
|
# Binary operation.
|
| 478 |
|
|
set operand2 [string trim [lindex $args 3]]
|
| 479 |
|
|
if { [string compare [lindex $args 4] -> ] != 0 } {
|
| 480 |
|
|
warning "Skipping invalid test: $line"
|
| 481 |
|
|
return
|
| 482 |
|
|
}
|
| 483 |
|
|
set result_index 5
|
| 484 |
|
|
set cond_index 6
|
| 485 |
|
|
}
|
| 486 |
|
|
|
| 487 |
|
|
set result [string trim [lindex $args $result_index]]
|
| 488 |
|
|
set conditions [list]
|
| 489 |
|
|
for { set i $cond_index } { $i < [llength $args] } { incr i } {
|
| 490 |
|
|
lappend conditions [string tolower [lindex $args $i]]
|
| 491 |
|
|
}
|
| 492 |
|
|
|
| 493 |
|
|
# If this test is unsupported, say so.
|
| 494 |
|
|
if ![supported-p $id $operation] {
|
| 495 |
|
|
unsupported "$testfile ($id)"
|
| 496 |
|
|
return
|
| 497 |
|
|
}
|
| 498 |
|
|
|
| 499 |
|
|
if {[string compare $operand1 \#] == 0 || \
|
| 500 |
|
|
[string compare $operand2 \#] == 0} {
|
| 501 |
|
|
unsupported "$testfile ($id), null reference"
|
| 502 |
|
|
return
|
| 503 |
|
|
}
|
| 504 |
|
|
|
| 505 |
|
|
# Construct a C program and then compile/execute it on the target.
|
| 506 |
|
|
# Grab some stuff from the c-torture.exp test driver for this.
|
| 507 |
|
|
|
| 508 |
|
|
set cprog [make-c-test $testfile $id $operation $result $conditions $operand1 $operand2]
|
| 509 |
|
|
c-torture-execute $cprog [target-specific-flags]
|
| 510 |
|
|
}
|
| 511 |
|
|
|
| 512 |
|
|
### Script mainline:
|
| 513 |
|
|
|
| 514 |
|
|
if [catch {set testdir $env(DECTEST)}] {
|
| 515 |
|
|
# If $DECTEST is unset, skip this test driver altogether.
|
| 516 |
|
|
return
|
| 517 |
|
|
}
|
| 518 |
|
|
|
| 519 |
|
|
note "Using tests in $testdir"
|
| 520 |
|
|
dfp-run-tests [lsort [glob -nocomplain $testdir/*.decTest]]
|
| 521 |
|
|
unset testdir
|
