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Redundant (?) test in ix86_expand_{setcc,int_movcc}
- To: gcc-patches at gcc dot gnu dot org
- Subject: Redundant (?) test in ix86_expand_{setcc,int_movcc}
- From: Alexandre Oliva <oliva at lsd dot ic dot unicamp dot br>
- Date: 08 Jan 2000 18:36:44 -0200
Does it really make sense to repeat the test if it fails?
Index: gcc/ChangeLog
from Alexandre Oliva <oliva@lsd.ic.unicamp.br>
* config/i386/i386.c (ix86_expand_setcc, ix86_expand_int_movcc):
Remove redundant test.
Index: gcc/config/i386/i386.c
===================================================================
RCS file: /cvs/gcc/egcs/gcc/config/i386/i386.c,v
retrieving revision 1.118
diff -u -p -r1.118 i386.c
--- gcc/config/i386/i386.c 2000/01/04 14:44:03 1.118
+++ gcc/config/i386/i386.c 2000/01/08 20:33:10
@@ -4345,8 +4345,7 @@ ix86_expand_setcc (code, unordered, dest
if (GET_MODE (dest) == QImode)
type = 2;
- else if (reg_overlap_mentioned_p (dest, ix86_compare_op0)
- || reg_overlap_mentioned_p (dest, ix86_compare_op0))
+ else if (reg_overlap_mentioned_p (dest, ix86_compare_op0))
type = 1;
if (type == 0)
@@ -4445,8 +4444,7 @@ ix86_expand_int_movcc (operands)
}
diff = ct - cf;
- if (reg_overlap_mentioned_p (out, ix86_compare_op0)
- || reg_overlap_mentioned_p (out, ix86_compare_op0))
+ if (reg_overlap_mentioned_p (out, ix86_compare_op0))
tmp = gen_reg_rtx (SImode);
emit_insn (compare_seq);
--
Alexandre Oliva http://www.ic.unicamp.br/~oliva IC-Unicamp, Bra[sz]il
oliva@{lsd.ic.unicamp.br,guarana.{org,com}} aoliva@{acm,computer}.org
oliva@{gnu.org,kaffe.org,{egcs,sourceware}.cygnus.com,samba.org}
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