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Fix a optimize_size problem in the correct (and smaller) manner.

This commit is contained in:
matt 2007-04-08 10:32:42 +00:00
parent 7a03642b56
commit 2d3546bb65
1 changed files with 10 additions and 8 deletions
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18
gnu/dist/gcc4/gcc/config/vax/vax.c vendored
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@ -169,7 +169,8 @@ vax_init_libfuncs (void)
/* This is like nonimmediate_operand with a restriction on the type of MEM. */
static void
split_quadword_operands (rtx insn, rtx * operands, rtx * low, int n)
split_quadword_operands (rtx insn, enum rtx_code code, rtx * operands,
rtx * low, int n)
{
int i;
@ -187,8 +188,7 @@ split_quadword_operands (rtx insn, rtx * operands, rtx * low, int n)
}
else if (optimize_size && MEM_P (operands[i])
&& REG_P (XEXP (operands[i], 0))
&& (GET_CODE (XEXP (insn, 1)) != MINUS
|| XEXP (XEXP(insn, 1), 0) != const0_rtx)
&& (code != MINUS || operands[1] != const0_rtx)
&& find_regno_note (insn, REG_DEAD,
REGNO (XEXP (operands[i], 0))))
{
@ -1093,7 +1093,7 @@ vax_output_int_move (rtx insn ATTRIBUTE_UNUSED, rtx *operands,
hi[0] = operands[0];
hi[1] = operands[1];
split_quadword_operands(insn, hi, lo, 2);
split_quadword_operands(insn, SET, hi, lo, 2);
pattern_lo = vax_output_int_move (NULL, lo, SImode);
pattern_hi = vax_output_int_move (NULL, hi, SImode);
@ -1233,7 +1233,7 @@ vax_output_int_add (rtx insn, rtx *operands, enum machine_mode mode)
if (TARGET_QMATH && 0)
debug_rtx (insn);
split_quadword_operands (insn, operands, low, 3);
split_quadword_operands (insn, PLUS, operands, low, 3);
if (TARGET_QMATH)
{
@ -1442,7 +1442,7 @@ vax_output_int_subtract (rtx insn, rtx *operands, enum machine_mode mode)
if (TARGET_QMATH && 0)
debug_rtx (insn);
split_quadword_operands (insn, operands, low, 3);
split_quadword_operands (insn, MINUS, operands, low, 3);
if (TARGET_QMATH)
{
@ -1451,8 +1451,10 @@ vax_output_int_subtract (rtx insn, rtx *operands, enum machine_mode mode)
{
/* Negation is tricky. It's basically complement and increment.
Negate hi, then lo, and subtract the carry back. */
gcc_assert (!MEM_P (low[0])
|| GET_CODE (XEXP (low[0], 0)) != POST_INC);
if ((MEM_P (low[0]) && GET_CODE (XEXP (low[0], 0)) == POST_INC)
|| (MEM_P (operands[0])
&& GET_CODE (XEXP (operands[0], 0)) == POST_INC))
fatal_insn ("illegal operand detected", insn);
output_asm_insn ("mnegl %2,%0", operands);
output_asm_insn ("mnegl %2,%0", low);
return "sbwc $0,%0";