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pa.c (emit_move_sequence): Always convert scratch_reg to the proper mode before using it. 

* pa.c (emit_move_sequence): Always convert scratch_reg to the
        proper mode before using it.

From-SVN: r28331
This commit is contained in:
Jeffrey A Law 1999-07-29 06:21:12 +00:00 committed by Jeff Law
parent be44d23e64
commit 1b8ad134da
2 changed files with 46 additions and 4 deletions
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3
gcc/ChangeLog
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@ -5,6 +5,9 @@ Wed Jul 28 12:50:48 1999 Geoff Keating <geoffk@cygnus.com>
Wed Jul 28 13:18:35 1999 Jeffrey A Law (law@cygnus.com)
* pa.c (emit_move_sequence): Always convert scratch_reg to the
proper mode before using it.
* pa.md (adddi3, subdi3): Turn into a define_expand/define_insn
pair.

47
gcc/config/pa/pa.c
View File

@ -1100,7 +1100,11 @@ hppa_address_cost (X)
Return 1 if we have written out everything that needs to be done to
do the move. Otherwise, return 0 and the caller will emit the move
normally. */
normally.
Note SCRATCH_REG may not be in the proper mode depending on how it
will be used. This routine is resposible for creating a new copy
of SCRATCH_REG in the proper mode. */
int
emit_move_sequence (operands, mode, scratch_reg)
@ -1161,6 +1165,9 @@ emit_move_sequence (operands, mode, scratch_reg)
if (GET_CODE (operand1) == SUBREG)
operand1 = XEXP (operand1, 0);
/* SCRATCH_REG will hold an address and maybe the actual data. We want
it in WORD_MODE regardless of what mode it was originally given
to us. */
scratch_reg = gen_rtx_REG (word_mode, REGNO (scratch_reg));
/* D might not fit in 14 bits either; for such cases load D into
@ -1190,7 +1197,11 @@ emit_move_sequence (operands, mode, scratch_reg)
if (GET_CODE (operand0) == SUBREG)
operand0 = XEXP (operand0, 0);
/* SCRATCH_REG will hold an address and maybe the actual data. We want
it in WORD_MODE regardless of what mode it was originally given
to us. */
scratch_reg = gen_rtx_REG (word_mode, REGNO (scratch_reg));
/* D might not fit in 14 bits either; for such cases load D into
scratch reg. */
if (!memory_address_p (Pmode, XEXP (operand0, 0)))
@ -1224,6 +1235,11 @@ emit_move_sequence (operands, mode, scratch_reg)
{
rtx xoperands[2];
/* SCRATCH_REG will hold an address and maybe the actual data. We want
it in WORD_MODE regardless of what mode it was originally given
to us. */
scratch_reg = gen_rtx_REG (word_mode, REGNO (scratch_reg));
/* Force the constant into memory and put the address of the
memory location into scratch_reg. */
xoperands[0] = scratch_reg;
@ -1244,6 +1260,11 @@ emit_move_sequence (operands, mode, scratch_reg)
&& FP_REG_CLASS_P (REGNO_REG_CLASS (REGNO (operand1)))))
&& scratch_reg)
{
/* SCRATCH_REG will hold an address and maybe the actual data. We want
it in WORD_MODE regardless of what mode it was originally given
to us. */
scratch_reg = gen_rtx_REG (word_mode, REGNO (scratch_reg));
/* D might not fit in 14 bits either; for such cases load D into
scratch reg. */
if (GET_CODE (operand1) == MEM
@ -1336,7 +1357,13 @@ emit_move_sequence (operands, mode, scratch_reg)
/* Figure out what (if any) scratch register to use. */
if (reload_in_progress || reload_completed)
scratch_reg = scratch_reg ? scratch_reg : operand0;
{
scratch_reg = scratch_reg ? scratch_reg : operand0;
/* SCRATCH_REG will hold an address and maybe the actual
data. We want it in WORD_MODE regardless of what mode it
was originally given to us. */
scratch_reg = gen_rtx_REG (word_mode, REGNO (scratch_reg));
}
else if (flag_pic)
scratch_reg = gen_reg_rtx (Pmode);
@ -1388,7 +1415,13 @@ emit_move_sequence (operands, mode, scratch_reg)
rtx temp;
if (reload_in_progress || reload_completed)
temp = scratch_reg ? scratch_reg : operand0;
{
temp = scratch_reg ? scratch_reg : operand0;
/* TEMP will hold an address and maybe the actual
data. We want it in WORD_MODE regardless of what mode it
was originally given to us. */
temp = gen_rtx_REG (word_mode, REGNO (temp));
}
else
temp = gen_reg_rtx (Pmode);
@ -1421,7 +1454,13 @@ emit_move_sequence (operands, mode, scratch_reg)
rtx temp, set;
if (reload_in_progress || reload_completed)
temp = scratch_reg ? scratch_reg : operand0;
{
temp = scratch_reg ? scratch_reg : operand0;
/* TEMP will hold an address and maybe the actual
data. We want it in WORD_MODE regardless of what mode it
was originally given to us. */
temp = gen_rtx_REG (word_mode, REGNO (temp));
}
else
temp = gen_reg_rtx (mode);