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* alpha.c (alpha_emit_set_const_1): Also try c + small constant.

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From-SVN: r32304
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Richard Henderson 2000-03-02 22:20:53 -08:00 committed by Richard Henderson
parent c1b5b92ce8
commit e68c380c8f
2 changed files with 12 additions and 0 deletions
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4
gcc/ChangeLog
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@ -1,3 +1,7 @@
2000-03-02 Richard Henderson <rth@cygnus.com>
* alpha.c (alpha_emit_set_const_1): Also try c + small constant.
2000-03-02 Mark Mitchell <mark@codesourcery.com>
* tree.h (TYPE_ALIGN_UNIT): New macro.

8
gcc/config/alpha/alpha.c
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@ -1400,6 +1400,14 @@ alpha_emit_set_const_1 (target, mode, c, n)
target, 0, OPTAB_WIDEN);
}
/* Next, see if, minus some low bits, we've an easy load of high bits. */
new = ((c & 0xffff) ^ 0x8000) - 0x8000;
if (new != 0
&& (temp = alpha_emit_set_const (subtarget, mode, c - new, n - 1)) != 0)
return expand_binop (mode, add_optab, temp, GEN_INT (new),
target, 0, OPTAB_WIDEN);
return 0;
}