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jcf-write.c (find_constant_index): Canonicalize NaNs when generating bytecode.

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2004-08-16  Andrew Haley  <aph@redhat.com>

        * jcf-write.c (find_constant_index): Canonicalize NaNs when
        generating bytecode.

From-SVN: r86053
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Andrew Haley 2004-08-16 13:03:51 +00:00 committed by Andrew Haley
parent f699e45414
commit a20f4d83c8
2 changed files with 18 additions and 0 deletions
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5
gcc/java/ChangeLog
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@ -1,3 +1,8 @@
2004-08-16 Andrew Haley <aph@redhat.com>
* jcf-write.c (find_constant_index): Canonicalize NaNs when
generating bytecode.
2004-08-16 Elliot Lee <sopwith@redhat.com>
PR java/9677

13
gcc/java/jcf-write.c
View File

@ -798,6 +798,19 @@ find_constant_index (tree value, struct jcf_partial *state)
{
long words[2];
/* IEEE NaN can have many values, but the Java VM spec defines a
canonical NaN. */
if (flag_emit_class_files
&& REAL_VALUE_ISNAN (TREE_REAL_CST (value)))
{
if (TYPE_PRECISION (TREE_TYPE (value)) == 32)
return find_constant1 (&state->cpool, CONSTANT_Float,
0x7fc00000);
else
return find_constant2 (&state->cpool, CONSTANT_Double,
0x7ff80000, 0x00000000);
}
real_to_target (words, &TREE_REAL_CST (value),
TYPE_MODE (TREE_TYPE (value)));
words[0] &= 0xffffffff;