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* optabs.c (widen_operand): Properly handle CONST_INT for NO_EXTEND.

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From-SVN: r50011
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Richard Kenner 2002-02-24 21:43:52 +00:00 • committed by Richard Kenner
parent 506d4ef6a1
commit 8041889f44
2 changed files with 11 additions and 4 deletions
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gcc/ChangeLog
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@ -1,3 +1,7 @@
Sun Feb 24 16:38:56 2002 Richard Kenner <kenner@vlsi1.ultra.nyu.edu>
* optabs.c (widen_operand): Properly handle CONST_INT for NO_EXTEND.
2002-02-24 Neil Booth <neil@daikokuya.demon.co.uk>
* cpplex.c (cpp_interpret_charconst): Get signedness or

11
gcc/optabs.c
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@ -186,11 +186,14 @@ widen_operand (op, mode, oldmode, unsignedp, no_extend)
{
rtx result;
/* If we must extend do so. If OP is either a constant or a SUBREG
for a promoted object, also extend since it will be more efficient to
do so. */
/* If we don't have to extend and this is a constant, return it. */
if (no_extend && GET_MODE (op) == VOIDmode)
return op;
/* If we must extend do so. If OP is a SUBREG for a promoted object, also
extend since it will be more efficient to do so unless the signedness of
a promoted object differs from our extension. */
if (! no_extend
|| GET_MODE (op) == VOIDmode
|| (GET_CODE (op) == SUBREG && SUBREG_PROMOTED_VAR_P (op)
&& SUBREG_PROMOTED_UNSIGNED_P (op) == unsignedp))
return convert_modes (mode, oldmode, op, unsignedp);