fd356fa288
The gnu_vector test case yields a new FAIL on s390x:
FAIL: gdb.base/gnu_vector.exp: verify vector return value
It was introduced by commit 77ae9c1933 "gdb.base/gnu_vector.exp:
Don't test output from the inferior". That commit dropped the special
handling for GDB's inability (on some targets) to set the return value.
This change re-establishes the logic from before, converting the above
FAIL to a KFAIL (PRMS gdb/8549).
gdb/testsuite/ChangeLog:
* gdb.base/gnu_vector.exp: Re-establish handling for should_kfail
when GDB can not set the vector return value. Add more comments
for clarification.
258 lines
12 KiB
Text
258 lines
12 KiB
Text
# Copyright 2010-2016 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 this program. If not, see <http://www.gnu.org/licenses/>. */
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#
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# Contributed by Ken Werner <ken.werner@de.ibm.com>.
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#
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# Tests GDBs support for GNU vectors.
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# http://gcc.gnu.org/onlinedocs/gcc/Vector-Extensions.html
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standard_testfile .c
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# If supported by the compiler, "-mcpu=native" or "-march=native"
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# should enable the highest available vector ABI. Try both, then try
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# without a CPU option. If all variants fail, assume that the
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# compiler can not handle GNU vectors.
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proc do_compile { {opts {}} } {
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global srcdir subdir srcfile binfile
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set ccopts {debug quiet}
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foreach opt $opts {lappend ccopts "additional_flags=$opt"}
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gdb_compile "${srcdir}/${subdir}/${srcfile}" "$binfile" executable $ccopts
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}
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if { [do_compile {-mcpu=native}] != ""
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&& [do_compile {-mcpu=native -Wno-psabi}] != ""
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&& [do_compile {-march=native}] != ""
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&& [do_compile] != ""} {
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untested "compiler can't handle vector_size attribute?"
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return -1
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}
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clean_restart ${binfile}
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if { ![runto main] } {
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fail "runto main"
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return -1
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}
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# Get endianess for the scalar->vector casts
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gdb_test_multiple "show endian" "show endian" {
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-re ".* (big|little) endian.*$gdb_prompt $" {
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set endian $expect_out(1,string)
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pass "endianness: $endian"
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}
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}
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# Test printing of character vector types
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gdb_test "print c4" "\\\$$decimal = \\{1, 2, 3, 4\\}"
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gdb_test "print c4\[2\]" "\\\$$decimal = 3"
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# Test operators on integer vector types
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gdb_test "print i4a" "\\\$$decimal = \\{2, 4, 8, 16\\}"
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gdb_test "print i4b" "\\\$$decimal = \\{1, 2, 8, 4\\}"
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# Arithmetic operators
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gdb_test "print i4a + i4b" "\\\$$decimal = \\{3, 6, 16, 20\\}"
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gdb_test "print i4a - i4b" "\\\$$decimal = \\{1, 2, 0, 12\\}"
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gdb_test "print i4a * i4b" "\\\$$decimal = \\{2, 8, 64, 64\\}"
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gdb_test "print i4a / i4b" "\\\$$decimal = \\{2, 2, 1, 4\\}"
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gdb_test "print i4a % i4b" "\\\$$decimal = \\{0, 0, 0, 0\\}"
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gdb_test "print i4a++" "\\\$$decimal = \\{2, 4, 8, 16\\}"
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gdb_test "print ++i4a" "\\\$$decimal = \\{4, 6, 10, 18\\}"
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gdb_test "print i4a--" "\\\$$decimal = \\{4, 6, 10, 18\\}"
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gdb_test "print --i4a" "\\\$$decimal = \\{2, 4, 8, 16\\}"
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gdb_test "print +i4a" "\\\$$decimal = \\{2, 4, 8, 16\\}"
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gdb_test "print -i4a" "\\\$$decimal = \\{-2, -4, -8, -16\\}"
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# Bitwise operators
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gdb_test "print i4a & i4b" "\\\$$decimal = \\{0, 0, 8, 0\\}"
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gdb_test "print i4a | i4b" "\\\$$decimal = \\{3, 6, 8, 20\\}"
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gdb_test "print i4a ^ i4b" "\\\$$decimal = \\{3, 6, 0, 20\\}"
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gdb_test "print ~i4a" "\\\$$decimal = \\{-3, -5, -9, -17\\}"
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# Shift operators
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gdb_test "print i4a << i4b" "\\\$$decimal = \\{4, 16, 2048, 256\\}"
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gdb_test "print i4a >> i4b" "\\\$$decimal = \\{1, 1, 0, 1\\}"
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# Test operators on floating point vector types
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gdb_test "print f4a" "\\\$$decimal = \\{2, 4, 8, 16\\}"
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gdb_test "print f4b" "\\\$$decimal = \\{1, 2, 8, 4\\}"
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# Arithmetic operators
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gdb_test "print f4a + f4b" "\\\$$decimal = \\{3, 6, 16, 20\\}"
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gdb_test "print f4a - f4b" "\\\$$decimal = \\{1, 2, 0, 12\\}"
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gdb_test "print f4a * f4b" "\\\$$decimal = \\{2, 8, 64, 64\\}"
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gdb_test "print f4a / f4b" "\\\$$decimal = \\{2, 2, 1, 4\\}"
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gdb_test "print +f4a" "\\\$$decimal = \\{2, 4, 8, 16\\}"
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gdb_test "print -f4a" "\\\$$decimal = \\{-2, -4, -8, -16\\}"
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# When casting to vector the input type must have the same length as
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# the total length of the vector.
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gdb_test "print (char4) 0x01010101" "\\\$$decimal = \\{1, 1, 1, 1\\}"
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gdb_test "print (int2) lla" "\\\$$decimal = \\{1, 1\\}"
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if { ![string compare $endian big] } then {
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gdb_test "print (char4) ia" "\\\$$decimal = \\{0, 0, 0, 2\\}"
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} else {
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gdb_test "print (char4) ia" "\\\$$decimal = \\{2, 0, 0, 0\\}"
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}
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gdb_test "print (int2) 1" "can only cast scalar to vector of same size"
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gdb_test "print (longlong2) 2" "can only cast scalar to vector of same size"
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gdb_test "print (float2) 3" "can only cast scalar to vector of same size"
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gdb_test "print (double2) 4" "can only cast scalar to vector of same size"
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gdb_test "print (uint4) ia" "can only cast scalar to vector of same size"
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gdb_test "print (int4) -3" "can only cast scalar to vector of same size"
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gdb_test "print (float4) 4" "can only cast scalar to vector of same size"
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gdb_test "print i4b = ia" "can only cast scalar to vector of same size"
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gdb_test "print i4a = 3" "can only cast scalar to vector of same size"
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gdb_test "print f4a = fb" "can only cast scalar to vector of same size"
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gdb_test "print f4b = 2" "can only cast scalar to vector of same size"
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gdb_test "print c4 + lla" "conversion of scalar to vector involves truncation"
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gdb_test "print i4a + lla" "conversion of scalar to vector involves truncation"
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gdb_test "print lla + c4" "conversion of scalar to vector involves truncation"
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gdb_test "print lla + i4a" "conversion of scalar to vector involves truncation"
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gdb_test "print c4 + ib" "\\\$$decimal = \\{2, 3, 4, 5\\}"
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gdb_test "print i4a + ib" "\\\$$decimal = \\{3, 5, 9, 17\\}"
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gdb_test "print i4a + 1" "\\\$$decimal = \\{3, 5, 9, 17\\}"
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gdb_test "print 1 + i4a" "\\\$$decimal = \\{3, 5, 9, 17\\}"
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gdb_test "print fa - f4b" "\\\$$decimal = \\{1, 0, -6, -2\\}"
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gdb_test "print 2 - f4b" "\\\$$decimal = \\{1, 0, -6, -2\\}"
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gdb_test "print f4a * fb" "\\\$$decimal = \\{2, 4, 8, 16\\}"
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gdb_test "print f4a * 1" "\\\$$decimal = \\{2, 4, 8, 16\\}"
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gdb_test "print ia / i4b" "\\\$$decimal = \\{2, 1, 0, 0\\}"
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gdb_test "print 2 / i4b" "\\\$$decimal = \\{2, 1, 0, 0\\}"
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gdb_test "print i4a % ib" "\\\$$decimal = \\{0, 0, 0, 0\\}"
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gdb_test "print i4a % 1" "\\\$$decimal = \\{0, 0, 0, 0\\}"
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gdb_test "print ia & i4b" "\\\$$decimal = \\{0, 2, 0, 0\\}"
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gdb_test "print 2 & i4b" "\\\$$decimal = \\{0, 2, 0, 0\\}"
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gdb_test "print i4a | ib" "\\\$$decimal = \\{3, 5, 9, 17\\}"
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gdb_test "print i4a | 1" "\\\$$decimal = \\{3, 5, 9, 17\\}"
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gdb_test "print ia ^ i4b" "\\\$$decimal = \\{3, 0, 10, 6\\}"
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gdb_test "print 2 ^ i4b" "\\\$$decimal = \\{3, 0, 10, 6\\}"
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gdb_test "print i4a << ib" "\\\$$decimal = \\{4, 8, 16, 32\\}"
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gdb_test "print i4a << 1" "\\\$$decimal = \\{4, 8, 16, 32\\}"
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gdb_test "print i4a >> ib" "\\\$$decimal = \\{1, 2, 4, 8\\}"
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gdb_test "print i4a >> 1" "\\\$$decimal = \\{1, 2, 4, 8\\}"
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gdb_test "print i4a = \{2, 4, 8, 16\}" "\\\$$decimal = \\{2, 4, 8, 16\\}"
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gdb_test "print i4a <<= ib" "\\\$$decimal = \\{4, 8, 16, 32\\}"
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# Test some error scenarios
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gdb_test "print i4a + d2" "Cannot perform operation on vectors with different types"
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gdb_test "print d2 + i4a" "Cannot perform operation on vectors with different types"
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gdb_test "print f4a + ll2" "Cannot perform operation on vectors with different types"
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gdb_test "print ll2 + f4a" "Cannot perform operation on vectors with different types"
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gdb_test "print i2 + ll2" "Cannot perform operation on vectors with different types"
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gdb_test "print ll2 + i2" "Cannot perform operation on vectors with different types"
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gdb_test "print i4a + ll2" "Cannot perform operation on vectors with different types"
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gdb_test "print ll2 + i4a" "Cannot perform operation on vectors with different types"
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gdb_test "print f4a + d2" "Cannot perform operation on vectors with different types"
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gdb_test "print d2 + f4a" "Cannot perform operation on vectors with different types"
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gdb_test "print ui4 + i4a" "Cannot perform operation on vectors with different types"
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gdb_test "print i4a + ui4" "Cannot perform operation on vectors with different types"
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gdb_test "print i4a + i2" "Cannot perform operation on vectors with different types"
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gdb_test "print i2 + i4a" "Cannot perform operation on vectors with different types"
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gdb_test "print f4a + f2" "Cannot perform operation on vectors with different types"
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gdb_test "print f2 + f4a" "Cannot perform operation on vectors with different types"
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gdb_test "print (double2) f2" "Cannot convert between vector values of different sizes"
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gdb_test "print (int4) c4" "Cannot convert between vector values of different sizes"
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gdb_test "print (char4) i4a" "Cannot convert between vector values of different sizes"
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# Test ptype on vector types.
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gdb_test "ptype c4" "type = char __attribute__ \\(\\(vector_size\\(4\\)\\)\\)"
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gdb_test "ptype char4" "type = char __attribute__ \\(\\(vector_size\\(4\\)\\)\\)"
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gdb_test "ptype i4a" "type = int __attribute__ \\(\\(vector_size\\(4\\)\\)\\)"
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gdb_test "ptype int4" "type = int __attribute__ \\(\\(vector_size\\(4\\)\\)\\)"
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gdb_test "ptype f4b" "type = float __attribute__ \\(\\(vector_size\\(4\\)\\)\\)"
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gdb_test "ptype float4" "type = float __attribute__ \\(\\(vector_size\\(4\\)\\)\\)"
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gdb_test "ptype union_with_vector_1" "type = union {\r\n\[\t \]+int i;\r\n\[\t \]+char cv __attribute__ \\(\\(vector_size\\(4\\)\\)\\);\r\n}"
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gdb_test "ptype struct_with_vector_1" "type = struct {\r\n\[\t \]+int i;\r\n\[\t \]+char cv __attribute__ \\(\\(vector_size\\(4\\)\\)\\);\r\n\[\t \]+float4 f4;\r\n}"
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# Test inferior function calls with vector arguments and/or vector
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# return values.
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if { [istarget "i?86-*-*"] || [istarget "x86_64-*-*" ] } {
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# These platforms don't support infcalls with vector arguments
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# and/or vector return values, so skip the remaining tests.
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# See also PR exp/18537.
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unsupported "skip remaining vector ABI tests on this arch"
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return
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}
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gdb_test "print add_some_intvecs(i4a, i4b, 3 * i4a)" "= \\{17, 34, 72, 132\\}" \
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"call add_some_intvecs"
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gdb_test "print add_many_charvecs(c4, c4, c4, c4, c4, c4, c4, c4, c4, c4)" \
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"= \\{10, 20, 30, 40\\}" "call add_many_charvecs"
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gdb_test "print add_various_floatvecs(2, f4a, f4b)" "= \\{3, 6, 16, 20\\}" \
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"call add_various_floatvecs"
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gdb_test "print add_structvecs(i2, (struct just_int2)\{2*i2\}, (struct two_int2)\{3*i2, 4*i2\})" \
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"= \\{i = \\{10, 20\\}\\}" "call add_structvecs"
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gdb_test "print add_singlevecs((char1) \{6\}, (int1) \{12\}, (double1) \{24\})" "= \\{42\\}" \
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"call add_singlevecs"
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# Test "finish" from vector-valued function.
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gdb_breakpoint "add_some_intvecs"
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gdb_continue "add_some_intvecs"
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set test "finish shows vector return value"
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gdb_test_multiple "finish" $test {
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-re "Value returned is .* = \\{10, 20, 48, 72\\}.*$gdb_prompt $" {
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pass $test
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}
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-re "Value returned has type: .* Cannot determine contents.*$gdb_prompt $" {
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kfail "gdb/8549" $test
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}
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}
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gdb_continue "add_some_intvecs"
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gdb_test "up" ""
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gdb_test "p res" "\\{10, 20, 48, 72\\}.*"
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gdb_test "down" ""
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# Test "return" from vector-valued function.
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set test "return from vector-valued function"
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set should_kfail 0
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gdb_test_multiple "return (int4) \{4, 2, 7, 6\}" $test {
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-re "#0 .* main .*$gdb_prompt $" {
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pass $test
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}
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-re "The location .* is unknown.\r\n.* return value .* will be ignored.\r\n" {
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# This happens, e.g., on s390x unless using the vector ABI.
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set should_kfail 1
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exp_continue
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}
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-re "Make add_some_intvecs return now. .y or n. $" {
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send_gdb "y\n"
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exp_continue
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}
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}
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gdb_test "next" ""
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set test "verify vector return value"
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gdb_test_multiple "p res" $test {
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-re ".*= \\{4, 2, 7, 6\\}\r\n.*$gdb_prompt $" {
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pass $test
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}
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-re ".*= \\{.*\\}\r\n.*$gdb_prompt $" {
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if { $should_kfail } {
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# GDB had not actually set the return value, likely due to
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# PR 8549. So accept any return value and emit a KFAIL.
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kfail "gdb/8549" $test
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} else {
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fail $test
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}
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}
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}
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