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sh.md (divsi_inv_m3): Handle zero dividend specially.

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* config/sh/sh.md (divsi_inv_m3): Handle zero dividend
	specially.

From-SVN: r130357
This commit is contained in:
Kaz Kojima 2007-11-22 21:15:19 +00:00
parent 6c01f02b2c
commit cd9a21ca0b
2 changed files with 11 additions and 0 deletions
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5
gcc/ChangeLog
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@ -1,3 +1,8 @@
2007-11-22 Kaz Kojima <kkojima@gcc.gnu.org>
* config/sh/sh.md (divsi_inv_m3): Handle zero dividend
specially.
2007-11-22 Uros Bizjak <ubizjak@gmail.com>
* config/i386/i386.h (TARGET_CPU_CPP_BUILTINS): Change checking

6
gcc/config/sh/sh.md
View file

@ -2471,6 +2471,12 @@ norm32: r25
rtx scratch1 = operands[8];
rtx scratch2 = operands[9];
if (satisfies_constraint_N (dividend))
{
emit_move_insn (result, dividend);
DONE;
}
emit_insn (gen_mulsidi3_media (scratch0, inv1, dividend));
emit_insn (gen_mulsidi3_media (scratch1, inv2, dividend));
emit_insn (gen_ashrdi3_media (scratch2, scratch0, GEN_INT (63)));