Blame SOURCES/gcc32-java-nan.patch
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2004-08-13 Andrew Haley <aph@redhat.com>
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* jcf-write.c (find_constant_index): Canonicalize NaN.
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--- gcc/java/jcf-write.c.jj 2002-10-16 22:36:11.000000000 +0100
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+++ gcc/java/jcf-write.c 2004-08-13 17:10:37.000000000 +0100
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@@ -828,12 +828,20 @@
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long words[2];
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if (TYPE_PRECISION (TREE_TYPE (value)) == 32)
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{
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+ if (REAL_VALUE_ISNAN (TREE_REAL_CST (value))
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+ && flag_emit_class_files)
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+ return find_constant1 (&state->cpool, CONSTANT_Float,
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+ 0x7fc00000);
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words[0] = etarsingle (TREE_REAL_CST (value)) & 0xFFFFFFFF;
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return find_constant1 (&state->cpool, CONSTANT_Float,
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(jword)words[0]);
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}
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else
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{
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+ if (REAL_VALUE_ISNAN (TREE_REAL_CST (value))
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+ && flag_emit_class_files)
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+ return find_constant2 (&state->cpool, CONSTANT_Double,
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+ 0x7ff80000, 0x00000000);
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etardouble (TREE_REAL_CST (value), words);
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return find_constant2 (&state->cpool, CONSTANT_Double,
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(jword)(words[1-FLOAT_WORDS_BIG_ENDIAN] &
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