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i386.c (ix86_expand_int_movcc, [...]): Sign-extend CONST_INTs.

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* config/i386/i386.c (ix86_expand_int_movcc,
ix86_expand_strlensi_unroll_1): Sign-extend CONST_INTs.

From-SVN: r41454
This commit is contained in:
Alexandre Oliva 2001-04-20 09:36:34 +00:00 committed by Alexandre Oliva
parent 99ffe40fe7
commit 7471a1f03c
2 changed files with 12 additions and 3 deletions
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5
gcc/ChangeLog
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@ -1,3 +1,8 @@
2001-04-20 Alexandre Oliva <aoliva@redhat.com>
* config/i386/i386.c (ix86_expand_int_movcc,
ix86_expand_strlensi_unroll_1): Sign-extend CONST_INTs.
2001-04-20 Geoff Keating <geoffk@redhat.com>
* config/rs6000/rs6000.md (ctrsi_internal1, ctrsi_internal2,

10
gcc/config/i386/i386.c
View File

@ -6316,7 +6316,8 @@ ix86_expand_int_movcc (operands)
*
* Size 8 - 11.
*/
emit_insn (gen_andsi3 (out, out, GEN_INT (cf - ct)));
emit_insn (gen_andsi3 (out, out, GEN_INT (trunc_int_for_mode
(cf - ct, SImode))));
if (ct)
emit_insn (gen_addsi3 (out, out, GEN_INT (ct)));
}
@ -6473,7 +6474,8 @@ ix86_expand_int_movcc (operands)
ix86_compare_op1, VOIDmode, 0, 1);
emit_insn (gen_addsi3 (out, out, constm1_rtx));
emit_insn (gen_andsi3 (out, out, GEN_INT (cf-ct)));
emit_insn (gen_andsi3 (out, out, GEN_INT (trunc_int_for_mode
(cf - ct, SImode))));
if (ct != 0)
emit_insn (gen_addsi3 (out, out, GEN_INT (ct)));
if (out != operands[0])
@ -7886,7 +7888,9 @@ ix86_expand_strlensi_unroll_1 (out, align_rtx)
emit_insn (gen_addsi3 (tmpreg, scratch, GEN_INT (-0x01010101)));
emit_insn (gen_one_cmplsi2 (scratch, scratch));
emit_insn (gen_andsi3 (tmpreg, tmpreg, scratch));
emit_insn (gen_andsi3 (tmpreg, tmpreg, GEN_INT (0x80808080)));
emit_insn (gen_andsi3 (tmpreg, tmpreg,
GEN_INT (trunc_int_for_mode
(0x80808080, SImode))));
emit_cmp_and_jump_insns (tmpreg, const0_rtx, EQ, 0,
SImode, 1, 0, align_4_label);