archive/php-src
1
0
Fork 0
mirror of https://github.com/php/php-src.git synced 2025-08-15 21:48:51 +02:00
Code Issues Projects Releases Packages Wiki Activity Actions 3

Merge branch 'PHP-8.1' into PHP-8.2

Browse source 
* PHP-8.1:
  Fix GH-10271: Incorrect arithmetic calculations when using JIT
This commit is contained in:
Dmitry Stogov 2023-01-16 14:51:42 +03:00
commit 757e269b89
2 changed files with 53 additions and 0 deletions
Download patch file Download diff file Expand all files Collapse all files

6
ext/opcache/jit/zend_jit_x86.dasc
View file

@ -16178,11 +16178,17 @@ static zend_regset zend_jit_get_scratch_regset(const zend_op *opline, const zend
}
}
if ((op1_info & MAY_BE_LONG) && (op2_info & MAY_BE_DOUBLE)) {
if (opline->op1_type == IS_CONST) {
ZEND_REGSET_INCL(regset, ZREG_R0);
}
if (ssa_op->result_def != current_var) {
ZEND_REGSET_INCL(regset, ZREG_XMM0);
}
}
if ((op1_info & MAY_BE_DOUBLE) && (op2_info & MAY_BE_LONG)) {
if (opline->op2_type == IS_CONST) {
ZEND_REGSET_INCL(regset, ZREG_R0);
}
if (zend_is_commutative(opline->opcode)) {
if (ssa_op->result_def != current_var) {
ZEND_REGSET_INCL(regset, ZREG_XMM0);

47
ext/opcache/tests/jit/gh10271.phpt Normal file
View file

@ -0,0 +1,47 @@
--TEST--
GH-10271: Incorrect arithmetic calculations when using JIT
--INI--
opcache.enable=1
opcache.enable_cli=1
opcache.file_update_protection=0
opcache.jit_buffer_size=1M
opcache.jit_hot_loop=1
--FILE--
<?php
$tang['KSI']=-9.1751656444142E-5;
$tang['ETA']=8.5076090069491E-5;
$sol['X']['k']=-222.45470924306;
$sol['X']['e']=-8.1787760034414;
$sol['X'][1]=-0.020231298698539;
$sol['Y']['k']=-14.400586941152;
$sol['Y']['e']=392.95090925357;
$sol['Y'][1]=-0.035664413413272;
$sol['xc']=968;
$sol['yc']=548;
for( $p=0; $p<3; $p++ )
{
print($p.': ');
Tangential2XY($tang,$sol);
}
function Tangential2XY(array $tang, array $sol) : array
{
$x = $sol['X']['k']*$tang['KSI'] + $sol['X']['e']*$tang['ETA'] + $sol['X'][1];
$y = $sol['Y']['k']*$tang['KSI'] + $sol['Y']['e']*$tang['ETA'] + $sol['Y'][1];
printf("In;%.12f;%.12f;%.12f;%.12f;",$x,$y,$sol['xc'],$sol['yc']);
$x = $sol['xc']*($x+1);
$y = $sol['yc']*($y+1);
printf("Out;%.12f;%.12f\n",$x,$y);
if( $x<100 )
exit("Mamy to!\n");
return ['x'=>$x,'y'=>$y];
}
?>
--EXPECT--
0: In;-0.000516528926;-0.000912408759;968.000000000000;548.000000000000;Out;967.500000000004;547.500000000009
1: In;-0.000516528926;-0.000912408759;968.000000000000;548.000000000000;Out;967.500000000004;547.500000000009
2: In;-0.000516528926;-0.000912408759;968.000000000000;548.000000000000;Out;967.500000000004;547.500000000009