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* simplify_rtx.c (simplify_subreg): Fix simplification of nested subregs.

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From-SVN: r42202
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Jan Hubicka 2001-05-17 18:18:26 +02:00 • committed by Jan Hubicka
parent e18748c0e5
commit 07b5314928
2 changed files with 7 additions and 2 deletions
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gcc/ChangeLog
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@ -1,3 +1,7 @@
Thu May 17 18:17:34 CEST 2001 Jan Hubicka <jh@suse.cz>
* simplify_rtx.c (simplify_subreg): Fix simplification of nested subregs.
2001-05-17 Gerald Pfeifer <pfeifer@dbai.tuwien.ac.at>
* gccbug.in (CATEGORIES): Add "bootstrap".

5
gcc/simplify-rtx.c
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@ -2332,11 +2332,12 @@ simplify_subreg (outermode, op, innermode, byte)
}
/* Recurse for futher possible simplifications. */
new = simplify_subreg (outermode, op, GET_MODE (op),
new = simplify_subreg (outermode, SUBREG_REG (op),
GET_MODE (SUBREG_REG (op)),
final_offset);
if (new)
return new;
return gen_rtx_SUBREG (outermode, op, final_offset);
return gen_rtx_SUBREG (outermode, SUBREG_REG (op), final_offset);
}
/* SUBREG of a hard register => just change the register number