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re PR target/46436 (m68hc11-elf --enable-werror-always build fails)

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PR target/46436
	* config/m68hc11/m68hc11.c (m68hc11_gen_highpart): Split shift count
	to accomodate 32 bit HOST_WIDE_INT.
	(m68hc11_emit_logical): Remove unused variable insn.
	(m68hc11_check_z_replacement) <CLOBBER>: Set this_insn_uses_ix and
	this_insn_uses_iy before use.

From-SVN: r166952
This commit is contained in:
Joern Rennecke 2010-11-19 18:40:24 +00:00 committed by Joern Rennecke
parent 5386338c2c
commit e4746336dc
2 changed files with 18 additions and 9 deletions
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9
gcc/ChangeLog
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@ -1,3 +1,12 @@
2010-11-19 Joern Rennecke <amylaar@spamcop.net>
PR target/46436
* config/m68hc11/m68hc11.c (m68hc11_gen_highpart): Split shift count
to accomodate 32 bit HOST_WIDE_INT.
(m68hc11_emit_logical): Remove unused variable insn.
(m68hc11_check_z_replacement) <CLOBBER>: Set this_insn_uses_ix and
this_insn_uses_iy before use.
2010-11-19 Joseph Myers <joseph@codesourcery.com>
PR c/46547

18
gcc/config/m68hc11/m68hc11.c
View File

@ -1999,7 +1999,7 @@ m68hc11_gen_highpart (enum machine_mode mode, rtx x)
}
else if (mode == SImode)
{
return gen_int_mode (val >> 32, SImode);
return gen_int_mode ((val >> 16) >> 16, SImode);
}
}
if (mode == QImode && D_REG_P (x))
@ -2967,8 +2967,6 @@ m68hc11_emit_logical (enum machine_mode mode, enum rtx_code code, rtx *operands)
}
else if (operands[1] != 0 && operands[2] != 0)
{
rtx insn;
if (!H_REG_P (operands[0]) && operands[3])
{
emit_move_insn (operands[3], operands[1]);
@ -2976,15 +2974,13 @@ m68hc11_emit_logical (enum machine_mode mode, enum rtx_code code, rtx *operands)
operands[3],
gen_rtx_fmt_ee (code, mode,
operands[3], operands[2])));
insn = emit_move_insn (operands[0], operands[3]);
emit_move_insn (operands[0], operands[3]);
}
else
{
insn = emit_insn (gen_rtx_SET (mode,
operands[0],
gen_rtx_fmt_ee (code, mode,
operands[0],
operands[2])));
emit_insn (gen_rtx_SET (mode, operands[0],
gen_rtx_fmt_ee (code, mode,
operands[0], operands[2])));
}
}
@ -4657,6 +4653,10 @@ m68hc11_check_z_replacement (rtx insn, struct replace_info *info)
}
if (GET_CODE (body) == CLOBBER)
{
rtx dst = XEXP (body, 0);
this_insn_uses_ix = reg_mentioned_p (ix_reg, dst);
this_insn_uses_iy = reg_mentioned_p (iy_reg, dst);
/* IX and IY are used at the same time, we have to restore
the value of the scratch register before this insn. */