Jakub Jelinek <jj@ultra.linux.cz>
Jakub Jelinek <jj@ultra.linux.cz> * real.c (ereal_from_double): Fix for 64-bit big endian hosts. * emit-rtl.c (gen_lowpart_common): Add case for hosts where double fits in HOST_WIDE_INT and one uses union to access a long constant as double. From-SVN: r27675
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1999-06-21 Jakub Jelinek <jj@ultra.linux.cz>
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* real.c (ereal_from_double): Fix for 64-bit big endian hosts.
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* emit-rtl.c (gen_lowpart_common): Add case for hosts where double
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fits in HOST_WIDE_INT and one uses union to access a long constant
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as double.
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Mon Jun 21 17:18:25 1999 Richard Henderson <rth@cygnus.com>
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* sparc.c (sparc_override_options): Don't allow profiling for
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@ -896,6 +896,22 @@ gen_lowpart_common (mode, x)
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r = REAL_VALUE_FROM_TARGET_SINGLE (i);
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return CONST_DOUBLE_FROM_REAL_VALUE (r, mode);
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}
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else if (((HOST_FLOAT_FORMAT == TARGET_FLOAT_FORMAT
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&& HOST_BITS_PER_WIDE_INT == BITS_PER_WORD)
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|| flag_pretend_float)
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&& GET_MODE_CLASS (mode) == MODE_FLOAT
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&& GET_MODE_SIZE (mode) == UNITS_PER_WORD
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&& GET_CODE (x) == CONST_INT
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&& (sizeof (double) * HOST_BITS_PER_CHAR
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== HOST_BITS_PER_WIDE_INT))
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{
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REAL_VALUE_TYPE r;
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HOST_WIDE_INT i;
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i = INTVAL (x);
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r = REAL_VALUE_FROM_TARGET_DOUBLE (&i);
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return CONST_DOUBLE_FROM_REAL_VALUE (r, mode);
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}
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#endif
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/* Similarly, if this is converting a floating-point value into a
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@ -6400,17 +6400,19 @@ ereal_from_double (d)
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/* Convert array of HOST_WIDE_INT to equivalent array of 16-bit pieces. */
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if (REAL_WORDS_BIG_ENDIAN)
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{
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#if HOST_BITS_PER_WIDE_INT == 32
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s[0] = (unsigned EMUSHORT) (d[0] >> 16);
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s[1] = (unsigned EMUSHORT) d[0];
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#if HOST_BITS_PER_WIDE_INT == 32
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s[2] = (unsigned EMUSHORT) (d[1] >> 16);
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s[3] = (unsigned EMUSHORT) d[1];
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#else
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/* In this case the entire target double is contained in the
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first array element. The second element of the input is
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ignored. */
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s[2] = (unsigned EMUSHORT) (d[0] >> 48);
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s[3] = (unsigned EMUSHORT) (d[0] >> 32);
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s[0] = (unsigned EMUSHORT) (d[0] >> 48);
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s[1] = (unsigned EMUSHORT) (d[0] >> 32);
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s[2] = (unsigned EMUSHORT) (d[0] >> 16);
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s[3] = (unsigned EMUSHORT) d[0];
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#endif
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}
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else
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