Create subdirectory t/opbasic. Move 5 test files there.

t/opbasic will hold files formerly held in t/op but which, unlike the vast
majority of tests in the latter directory, are ineligible to use t/test.pl as
a source of test functions.  Affected files:

arith.t
cmp.t
concat.t
magic_phase.t
qq.t

This commit does nothing more than create the new subdirectory and move the
files into it.

For: RT #115838

1 files changed, 454 insertions, 0 deletions

diff --git a/t/opbasic/arith.t b/t/opbasic/arith.t
new file mode 100644
index 0000000000..3c91971fda
--- /dev/null
+++ b/t/opbasic/arith.t
@@ -0,0 +1,454 @@
+#!./perl -w
+
+BEGIN {
+    chdir 't' if -d 't';
+    @INC = '../lib';
+}
+
+print "1..167\n";
+
+sub try ($$$) {
+   print +($_[1] ? "ok" : "not ok"), " $_[0] - $_[2]\n";
+}
+sub tryeq ($$$$) {
+  if ($_[1] == $_[2]) {
+    print "ok $_[0]";
+  } else {
+    print "not ok $_[0] # $_[1] != $_[2]";
+  }
+  print " - $_[3]\n";
+}
+sub tryeq_sloppy ($$$$) {
+  if ($_[1] == $_[2]) {
+    print "ok $_[0]";
+  } else {
+    my $error = abs (($_[1] - $_[2]) / $_[1]);
+    if ($error < 1e-9) {
+      print "ok $_[0] # $_[1] is close to $_[2], \$^O eq $^O";
+    } else {
+      print "not ok $_[0] # $_[1] != $_[2]";
+    }
+  }
+  print " - $_[3]\n";
+}
+
+my $T = 1;
+tryeq $T++,  13 %  4, 1, 'modulo: positive positive';
+tryeq $T++, -13 %  4, 3, 'modulo: negative positive';
+tryeq $T++,  13 % -4, -3, 'modulo: positive negative';
+tryeq $T++, -13 % -4, -1, 'modulo: negative negative';
+
+# Give abs() a good work-out before using it in anger
+tryeq $T++, abs(0), 0, 'abs(): 0 0';
+tryeq $T++, abs(1), 1, 'abs(): 1 1';
+tryeq $T++, abs(-1), 1, 'abs(): -1 1';
+tryeq $T++, abs(2147483647), 2147483647, 'abs(): 2**31-1: pos pos';
+tryeq $T++, abs(-2147483647), 2147483647, 'abs(): 2**31-1: neg pos';
+tryeq $T++, abs(4294967295), 4294967295, 'abs(): 2**32-1: pos pos';
+tryeq $T++, abs(-4294967295), 4294967295, 'abs(): 2**32-1: neg pos';
+tryeq $T++, abs(9223372036854775807), 9223372036854775807,
+    'abs(): 2**63-1: pos pos';
+tryeq $T++, abs(-9223372036854775807), 9223372036854775807,
+    'abs(): 2**63-1: neg pos';
+# Assume no change whatever; no slop needed
+tryeq $T++, abs(1e50), 1e50, 'abs(): 1e50: pos pos';
+# Assume only sign bit flipped
+tryeq $T++, abs(-1e50), 1e50, 'abs(): 1e50: neg pos';
+
+my $limit = 1e6;
+
+# Division (and modulo) of floating point numbers
+# seem to be rather sloppy in Cray.
+$limit = 1e8 if $^O eq 'unicos';
+
+try $T++, abs( 13e21 %  4e21 -  1e21) < $limit, 'abs() for floating point';
+try $T++, abs(-13e21 %  4e21 -  3e21) < $limit, 'abs() for floating point';
+try $T++, abs( 13e21 % -4e21 - -3e21) < $limit, 'abs() for floating point';
+try $T++, abs(-13e21 % -4e21 - -1e21) < $limit, 'abs() for floating point';
+
+tryeq $T++, 4063328477 % 65535, 27407, 'UV behaves properly: modulo';
+tryeq $T++, 4063328477 % 4063328476, 1, 'UV behaves properly: modulo';
+tryeq $T++, 4063328477 % 2031664238, 1, 'UV behaves properly: modulo';
+tryeq $T++, 2031664238 % 4063328477, 2031664238,
+    'UV behaves properly: modulo';
+
+tryeq $T++, 2147483647 + 0, 2147483647,
+    'trigger wrapping on 32 bit IVs and UVs';
+
+tryeq $T++, 2147483647 + 1, 2147483648, 'IV + IV promotes to UV';
+tryeq $T++, 2147483640 + 10, 2147483650, 'IV + IV promotes to UV';
+tryeq $T++, 2147483647 + 2147483647, 4294967294, 'IV + IV promotes to UV';
+tryeq $T++, 2147483647 + 2147483649, 4294967296, 'IV + UV promotes to NV';
+tryeq $T++, 4294967294 + 2, 4294967296, 'UV + IV promotes to NV';
+tryeq $T++, 4294967295 + 4294967295, 8589934590, 'UV + UV promotes to NV';
+
+tryeq $T++, 2147483648 + -1, 2147483647, 'UV + IV promotes to IV';
+tryeq $T++, 2147483650 + -10, 2147483640, 'UV + IV promotes to IV';
+tryeq $T++, -1 + 2147483648, 2147483647, 'IV + UV promotes to IV';
+tryeq $T++, -10 + 4294967294, 4294967284, 'IV + UV promotes to IV';
+tryeq $T++, -2147483648 + -2147483648, -4294967296, 'IV + IV promotes to NV';
+tryeq $T++, -2147483640 + -10, -2147483650, 'IV + IV promotes to NV';
+
+# Hmm. Do not forget the simple stuff
+# addition
+tryeq $T++, 1 + 1, 2, 'addition of 2 positive integers';
+tryeq $T++, 4 + -2, 2, 'addition of positive and negative integer';
+tryeq $T++, -10 + 100, 90, 'addition of negative and positive integer';
+tryeq $T++, -7 + -9, -16, 'addition of 2 negative integers';
+tryeq $T++, -63 + +2, -61, 'addition of signed negative and positive integers';
+tryeq $T++, 4 + -1, 3, 'addition of positive and negative integer';
+tryeq $T++, -1 + 1, 0, 'addition which sums to 0';
+tryeq $T++, +29 + -29, 0, 'addition which sums to 0';
+tryeq $T++, -1 + 4, 3, 'addition of signed negative and positive integers';
+tryeq $T++, +4 + -17, -13, 'addition of signed positive and negative integers';
+
+# subtraction
+tryeq $T++, 3 - 1, 2, 'subtraction of two positive integers';
+tryeq $T++, 3 - 15, -12,
+    'subtraction of two positive integers: minuend smaller';
+tryeq $T++, 3 - -7, 10, 'subtraction of positive and negative integer';
+tryeq $T++, -156 - 5, -161, 'subtraction of negative and positive integer';
+tryeq $T++, -156 - -5, -151, 'subtraction of two negative integers';
+tryeq $T++, -5 - -12, 7,
+    'subtraction of two negative integers: minuend smaller';
+tryeq $T++, -3 - -3, 0, 'subtraction of two negative integers with result of 0';
+tryeq $T++, 15 - 15, 0, 'subtraction of two positive integers with result of 0';
+tryeq $T++, 2147483647 - 0, 2147483647, 'subtraction from large integer';
+tryeq $T++, 2147483648 - 0, 2147483648, 'subtraction from large integer';
+tryeq $T++, -2147483648 - 0, -2147483648,
+    'subtraction from large negative integer';
+tryeq $T++, 0 - -2147483647, 2147483647,
+    'subtraction of large negative integer from 0';
+tryeq $T++, -1 - -2147483648, 2147483647,
+    'subtraction of large negative integer from negative integer';
+tryeq $T++, 2 - -2147483648, 2147483650,
+    'subtraction of large negative integer from positive integer';
+tryeq $T++, 4294967294 - 3, 4294967291, 'subtraction from large integer';
+tryeq $T++, -2147483648 - -1, -2147483647,
+    'subtraction from large negative integer';
+tryeq $T++, 2147483647 - -1, 2147483648, 'IV - IV promote to UV';
+tryeq $T++, 2147483647 - -2147483648, 4294967295, 'IV - IV promote to UV';
+tryeq $T++, 4294967294 - -3, 4294967297, 'UV - IV promote to NV';
+tryeq $T++, -2147483648 - +1, -2147483649, 'IV - IV promote to NV';
+tryeq $T++, 2147483648 - 2147483650, -2, 'UV - UV promote to IV';
+tryeq $T++, 2000000000 - 4000000000, -2000000000, 'IV - UV promote to IV';
+
+# No warnings should appear;
+my $a;
+$a += 1;
+tryeq $T++, $a, 1, '+= with positive';
+undef $a;
+$a += -1;
+tryeq $T++, $a, -1, '+= with negative';
+undef $a;
+$a += 4294967290;
+tryeq $T++, $a, 4294967290, '+= with positive';
+undef $a;
+$a += -4294967290;
+tryeq $T++, $a, -4294967290, '+= with negative';
+undef $a;
+$a += 4294967297;
+tryeq $T++, $a, 4294967297, '+= with positive';
+undef $a;
+$a += -4294967297;
+tryeq $T++, $a, -4294967297, '+= with negative';
+
+my $s;
+$s -= 1;
+tryeq $T++, $s, -1, '-= with positive';
+undef $s;
+$s -= -1;
+tryeq $T++, $s, +1, '-= with negative';
+undef $s;
+$s -= -4294967290;
+tryeq $T++, $s, +4294967290, '-= with negative';
+undef $s;
+$s -= 4294967290;
+tryeq $T++, $s, -4294967290, '-= with negative';
+undef $s;
+$s -= 4294967297;
+tryeq $T++, $s, -4294967297, '-= with positive';
+undef $s;
+$s -= -4294967297;
+tryeq $T++, $s, +4294967297, '-= with positive';
+
+# multiplication
+tryeq $T++, 1 * 3, 3, 'multiplication of two positive integers';
+tryeq $T++, -2 * 3, -6, 'multiplication of negative and positive integer';
+tryeq $T++, 3 * -3, -9, 'multiplication of positive and negative integer';
+tryeq $T++, -4 * -3, 12, 'multiplication of two negative integers';
+
+# check with 0xFFFF and 0xFFFF
+tryeq $T++, 65535 * 65535, 4294836225,
+    'multiplication: 0xFFFF and 0xFFFF: pos pos';
+tryeq $T++, 65535 * -65535, -4294836225,
+    'multiplication: 0xFFFF and 0xFFFF: pos neg';
+tryeq $T++, -65535 * 65535, -4294836225,
+    'multiplication: 0xFFFF and 0xFFFF: pos neg';
+tryeq $T++, -65535 * -65535, 4294836225,
+    'multiplication: 0xFFFF and 0xFFFF: neg neg';
+
+# check with 0xFFFF and 0x10001
+tryeq $T++, 65535 * 65537, 4294967295,
+    'multiplication: 0xFFFF and 0x10001: pos pos';
+tryeq $T++, 65535 * -65537, -4294967295,
+    'multiplication: 0xFFFF and 0x10001: pos neg';
+tryeq $T++, -65535 * 65537, -4294967295,
+    'multiplication: 0xFFFF and 0x10001: neg pos';
+tryeq $T++, -65535 * -65537, 4294967295,
+    'multiplication: 0xFFFF and 0x10001: neg neg';
+
+# check with 0x10001 and 0xFFFF
+tryeq $T++, 65537 * 65535, 4294967295,
+    'multiplication: 0x10001 and 0xFFFF: pos pos';
+tryeq $T++, 65537 * -65535, -4294967295,
+    'multiplication: 0x10001 and 0xFFFF: pos neg';
+tryeq $T++, -65537 * 65535, -4294967295,
+    'multiplication: 0x10001 and 0xFFFF: neg pos';
+tryeq $T++, -65537 * -65535, 4294967295,
+    'multiplication: 0x10001 and 0xFFFF: neg neg';
+
+# These should all be dones as NVs
+tryeq $T++, 65537 * 65537, 4295098369, 'multiplication: NV: pos pos';
+tryeq $T++, 65537 * -65537, -4295098369, 'multiplication: NV: pos neg';
+tryeq $T++, -65537 * 65537, -4295098369, 'multiplication: NV: neg pos';
+tryeq $T++, -65537 * -65537, 4295098369, 'multiplication: NV: neg neg';
+
+# will overflow an IV (in 32-bit)
+tryeq $T++, 46340 * 46342, 0x80001218,
+    'multiplication: overflow an IV in 32-bit: pos pos';
+tryeq $T++, 46340 * -46342, -0x80001218,
+    'multiplication: overflow an IV in 32-bit: pos neg';
+tryeq $T++, -46340 * 46342, -0x80001218,
+    'multiplication: overflow an IV in 32-bit: neg pos';
+tryeq $T++, -46340 * -46342, 0x80001218,
+    'multiplication: overflow an IV in 32-bit: neg neg';
+
+tryeq $T++, 46342 * 46340, 0x80001218,
+    'multiplication: overflow an IV in 32-bit: pos pos';
+tryeq $T++, 46342 * -46340, -0x80001218,
+    'multiplication: overflow an IV in 32-bit: pos neg';
+tryeq $T++, -46342 * 46340, -0x80001218,
+    'multiplication: overflow an IV in 32-bit: neg pos';
+tryeq $T++, -46342 * -46340, 0x80001218,
+    'multiplication: overflow an IV in 32-bit: neg neg';
+
+# will overflow a positive IV (in 32-bit)
+tryeq $T++, 65536 * 32768, 0x80000000,
+    'multiplication: overflow a positive IV in 32-bit: pos pos';
+tryeq $T++, 65536 * -32768, -0x80000000,
+    'multiplication: overflow a positive IV in 32-bit: pos neg';
+tryeq $T++, -65536 * 32768, -0x80000000,
+    'multiplication: overflow a positive IV in 32-bit: neg pos';
+tryeq $T++, -65536 * -32768, 0x80000000,
+    'multiplication: overflow a positive IV in 32-bit: neg neg';
+
+tryeq $T++, 32768 * 65536, 0x80000000,
+    'multiplication: overflow a positive IV in 32-bit: pos pos';
+tryeq $T++, 32768 * -65536, -0x80000000,
+    'multiplication: overflow a positive IV in 32-bit: pos neg';
+tryeq $T++, -32768 * 65536, -0x80000000,
+    'multiplication: overflow a positive IV in 32-bit: neg pos';
+tryeq $T++, -32768 * -65536, 0x80000000,
+    'multiplication: overflow a positive IV in 32-bit: neg neg';
+
+# 2147483647 is prime. bah.
+
+tryeq $T++, 46339 * 46341, 0x7ffea80f,
+    'multiplication: hex product: pos pos';
+tryeq $T++, 46339 * -46341, -0x7ffea80f,
+    'multiplication: hex product: pos neg';
+tryeq $T++, -46339 * 46341, -0x7ffea80f,
+    'multiplication: hex product: neg pos';
+tryeq $T++, -46339 * -46341, 0x7ffea80f,
+    'multiplication: hex product: neg neg';
+
+# leading space should be ignored
+
+tryeq $T++, 1 + " 1", 2, 'ignore leading space: addition';
+tryeq $T++, 3 + " -1", 2, 'ignore leading space: subtraction';
+tryeq $T++, 1.2, " 1.2", 'floating point and string equivalent: positive';
+tryeq $T++, -1.2, " -1.2", 'floating point and string equivalent: negative';
+
+# division
+tryeq $T++, 28/14, 2, 'division of two positive integers';
+tryeq $T++, 28/-7, -4, 'division of positive integer by negative';
+tryeq $T++, -28/4, -7, 'division of negative integer by positive';
+tryeq $T++, -28/-2, 14, 'division of negative integer by negative';
+
+tryeq $T++, 0x80000000/1, 0x80000000,
+    'division of positive hex by positive integer';
+tryeq $T++, 0x80000000/-1, -0x80000000,
+    'division of positive hex by negative integer';
+tryeq $T++, -0x80000000/1, -0x80000000,
+    'division of negative hex by negative integer';
+tryeq $T++, -0x80000000/-1, 0x80000000,
+    'division of negative hex by positive integer';
+
+# The example for sloppy divide, rigged to avoid the peephole optimiser.
+tryeq_sloppy $T++, "20." / "5.", 4, 'division of floating point without fractional part';
+
+tryeq $T++, 2.5 / 2, 1.25,
+    'division of positive floating point by positive integer';
+tryeq $T++, 3.5 / -2, -1.75,
+    'division of positive floating point by negative integer';
+tryeq $T++, -4.5 / 2, -2.25,
+    'division of negative floating point by positive integer';
+tryeq $T++, -5.5 / -2, 2.75,
+    'division of negative floating point by negative integer';
+
+# Bluuurg if your floating point can not accurately cope with powers of 2
+# [I suspect this is parsing string->float problems, not actual arith]
+tryeq_sloppy $T++, 18446744073709551616/1, 18446744073709551616,
+    'division of very large number by 1'; # Bluuurg
+tryeq_sloppy $T++, 18446744073709551616/2, 9223372036854775808,
+    'division of very large number by 2';
+tryeq_sloppy $T++, 18446744073709551616/4294967296, 4294967296,
+    'division of two very large numbers';
+tryeq_sloppy $T++, 18446744073709551616/9223372036854775808, 2,
+    'division of two very large numbers';
+
+{
+  # The peephole optimiser is wrong to think that it can substitute intops
+  # in place of regular ops, because i_multiply can overflow.
+  # Bug reported by "Sisyphus" <kalinabears@hdc.com.au>
+  my $n = 1127;
+
+  my $float = ($n % 1000) * 167772160.0;
+  tryeq_sloppy $T++, $float, 21307064320, 'integer times floating point';
+
+  # On a 32 bit machine, if the i_multiply op is used, you will probably get
+  # -167772160. It is actually undefined behaviour, so anything may happen.
+  my $int = ($n % 1000) * 167772160;
+  tryeq $T++, $int, 21307064320, 'integer times integer';
+
+  my $float2 = ($n % 1000 + 0.0) * 167772160;
+  tryeq $T++, $float2, 21307064320, 'floating point times integer';
+
+  my $int2 = ($n % 1000 + 0) * 167772160;
+  tryeq $T++, $int2, 21307064320, 'integer plus zero times integer';
+
+  # zero, but in a way that ought to be able to defeat any future optimizer:
+  my $zero = $$ - $$;
+  my $int3 = ($n % 1000 + $zero) * 167772160;
+  tryeq $T++, $int3, 21307064320, 'defeat any future optimizer';
+
+  my $t = time;
+  my $t1000 = time() * 1000;
+  try $T++, abs($t1000 -1000 * $t) <= 2000, 'absolute value';
+}
+
+{
+  # 64 bit variants
+  my $n = 1127;
+
+  my $float = ($n % 1000) * 720575940379279360.0;
+  tryeq_sloppy $T++, $float, 9.15131444281685e+19,
+    '64 bit: integer times floating point';
+
+  my $int = ($n % 1000) * 720575940379279360;
+  tryeq_sloppy $T++, $int, 9.15131444281685e+19,
+    '64 bit: integer times integer';
+
+  my $float2 = ($n % 1000 + 0.0) * 720575940379279360;
+  tryeq_sloppy $T++, $float2, 9.15131444281685e+19,
+    '64 bit: floating point times integer';
+
+  my $int2 = ($n % 1000 + 0) * 720575940379279360;
+  tryeq_sloppy $T++, $int2, 9.15131444281685e+19,
+    '64 bit: integer plus zero times integer';
+
+  # zero, but in a way that ought to be able to defeat any future optimizer:
+  my $zero = $$ - $$;
+  my $int3 = ($n % 1000 + $zero) * 720575940379279360;
+  tryeq_sloppy $T++, $int3, 9.15131444281685e+19,
+    '64 bit: defeat any future optimizer';
+}
+
+# [perl #109542] $1 and "$1" should be treated the same way
+"976562500000000" =~ /(\d+)/;
+$a = ($1 * 1024);
+$b = ("$1" * 1024);
+print "not "x($a ne $b), "ok ", $T++, qq ' - \$1 vs "\$1" * something\n';
+$a = (1024 * $1);
+$b = (1024 * "$1");
+print "not "x($a ne $b), "ok ", $T++, qq ' - something * \$1 vs "\$1"\n';
+$a = ($1 + 102400000000000);
+$b = ("$1" + 102400000000000);
+print "not "x($a ne $b), "ok ", $T++, qq ' - \$1 vs "\$1" + something\n';
+$a = (102400000000000 + $1);
+$b = (102400000000000 + "$1");
+print "not "x($a ne $b), "ok ", $T++, qq ' - something + \$1 vs "\$1"\n';
+$a = ($1 - 10240000000000000);
+$b = ("$1" - 10240000000000000);
+print "not "x($a ne $b), "ok ", $T++, qq ' - \$1 vs "\$1" - something\n';
+$a = (10240000000000000 - $1);
+$b = (10240000000000000 - "$1");
+print "not "x($a ne $b), "ok ", $T++, qq ' - something - \$1 vs "\$1"\n';
+"976562500" =~ /(\d+)/;
+$a = ($1 ** 2);
+$b = ("$1" ** 2);
+print "not "x($a ne $b), "ok ", $T++, qq ' - \$1 vs "\$1" ** something\n';
+"32" =~ /(\d+)/;
+$a = (3 ** $1);
+$b = (3 ** "$1");
+print "not "x($a ne $b), "ok ", $T++, qq ' - something ** \$1 vs "\$1"\n';
+"97656250000000000" =~ /(\d+)/;
+$a = ($1 / 10);
+$b = ("$1" / 10);
+print "not "x($a ne $b), "ok ", $T++, qq ' - \$1 vs "\$1" / something\n';
+"10" =~ /(\d+)/;
+$a = (97656250000000000 / $1);
+$b = (97656250000000000 / "$1");
+print "not "x($a ne $b), "ok ", $T++, qq ' - something / \$1 vs "\$1"\n';
+"97656250000000000" =~ /(\d+)/;
+$a = ($1 <=> 97656250000000001);
+$b = ("$1" <=> 97656250000000001);
+print "not "x($a ne $b), "ok ", $T++, qq ' - \$1 vs "\$1" <=> something\n';
+$a = (97656250000000001 <=> $1);
+$b = (97656250000000001 <=> "$1");
+print "not "x($a ne $b), "ok ", $T++, qq ' - something <=> \$1 vs "\$1"\n';
+"97656250000000001" =~ /(\d+)/;
+$a = ($1 % 97656250000000002);
+$b = ("$1" % 97656250000000002);
+print "not "x($a ne $b), "ok ", $T++, qq ' - \$1 vs "\$1" % something\n';
+$a = (97656250000000000 % $1);
+$b = (97656250000000000 % "$1");
+print "not "x($a ne $b), "ok ", $T++, qq ' - something % \$1 vs "\$1"\n';
+
+my $vms_no_ieee;
+if ($^O eq 'VMS') {
+  use vars '%Config';
+  eval {require Config; import Config};
+  $vms_no_ieee = 1 unless defined($Config{useieee});
+}
+
+if ($^O eq 'vos') {
+  print "not ok ", $T++, " # TODO VOS raises SIGFPE instead of producing infinity.\n";
+}
+elsif ($vms_no_ieee) {
+ print $T++, " # SKIP -- the IEEE infinity model is unavailable in this configuration.\n"
+}
+elsif ($^O eq 'ultrix') {
+  print "not ok ", $T++, " # TODO Ultrix enters deep nirvana instead of producing infinity.\n";
+}
+else {
+  # The computation of $v should overflow and produce "infinity"
+  # on any system whose max exponent is less than 10**1506.
+  # The exact string used to represent infinity varies by OS,
+  # so we don't test for it; all we care is that we don't die.
+  #
+  # Perl considers it to be an error if SIGFPE is raised.
+  # Chances are the interpreter will die, since it doesn't set
+  # up a handler for SIGFPE.  That's why this test is last; to
+  # minimize the number of test failures.  --PG
+
+  my $n = 5000;
+  my $v = 2;
+  while (--$n)
+  {
+    $v *= 2;
+  }
+  print "ok ", $T++, " - infinity\n";
+}
+