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rs6000.md (movdi splitter): Sign extend more efficiently.

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* rs6000.md (movdi splitter): Sign extend more efficiently.
	* rs6000.c (reg_or_arith_cint_operand): Redefine 64-bit constant
	to "long long" valid on 32-bit and 64-bit hosts.
	(logical_operand): Cast trunc_int_for_mode rturn value.
	(rs6000_emit_move): Shift macro to encapsulate variable.
	(rs6000_va_start): Use HOST_WIDE_INT_PRINT_DEC.
	(rs6000_emit_{prologue,epilogue}): EH regno is unsigned but
	plus_constant requires signed argument.

From-SVN: r42111
This commit is contained in:
David Edelsohn 2001-05-15 19:27:13 +00:00 committed by David Edelsohn
parent 48187504f8
commit 78e1b90d92
3 changed files with 32 additions and 10 deletions
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11
gcc/ChangeLog
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@ -1,3 +1,14 @@
2001-05-15 David Edelsohn <edelsohn@gnu.org>
* rs6000.md (movdi splitter): Sign extend more efficiently.
* rs6000.c (reg_or_arith_cint_operand): Redefine 64-bit constant
to "long long" valid on 32-bit and 64-bit hosts.
(logical_operand): Cast trunc_int_for_mode rturn value.
(rs6000_emit_move): Shift macro to encapsulate variable.
(rs6000_va_start): Use HOST_WIDE_INT_PRINT_DEC.
(rs6000_emit_{prologue,epilogue}): EH regno is unsigned but
plus_constant requires signed argument.
2001-05-15 Loren J. Rittle <ljrittle@acm.org>
* gthr-posix.h: Make additional pthread-* functions weak.

29
gcc/config/rs6000/rs6000.c
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@ -674,7 +674,7 @@ reg_or_arith_cint_operand (op, mode)
|| (GET_CODE (op) == CONST_INT
#if HOST_BITS_PER_WIDE_INT != 32
&& ((unsigned HOST_WIDE_INT) (INTVAL (op) + 0x80000000)
< 0x100000000u)
< (unsigned HOST_WIDE_INT) 0x100000000ll)
#endif
));
}
@ -1023,7 +1023,7 @@ logical_operand (op, mode)
return 0;
/* This must really be SImode, not MODE. */
if (opl != trunc_int_for_mode (opl, SImode))
if (opl != (unsigned HOST_WIDE_INT) trunc_int_for_mode (opl, SImode))
return 0;
return ((opl & 0xffff) == 0
@ -1795,10 +1795,10 @@ rs6000_emit_move (dest, source, mode)
/* Darwin uses a special PIC legitimizer. */
if (DEFAULT_ABI == ABI_DARWIN && flag_pic)
{
#if TARGET_MACHO
rtx temp_reg = ((reload_in_progress || reload_completed)
? operands[0] : NULL);
#if TARGET_MACHO
operands[1] =
rs6000_machopic_legitimize_pic_address (operands[1], mode,
temp_reg);
@ -2451,8 +2451,15 @@ rs6000_va_start (stdarg_p, valist, nextarg)
n_fpr = current_function_args_info.fregno - FP_ARG_MIN_REG;
if (TARGET_DEBUG_ARG)
fprintf (stderr, "va_start: words = %d, n_gpr = %d, n_fpr = %d\n",
words, n_gpr, n_fpr);
{
fputs ("va_start: words = ", stderr);
fprintf (stderr, HOST_WIDE_INT_PRINT_DEC, words);
fputs (", n_gpr = ", stderr);
fprintf (stderr, HOST_WIDE_INT_PRINT_DEC, n_gpr);
fputs (", n_fpr = ", stderr);
fprintf (stderr, HOST_WIDE_INT_PRINT_DEC, n_fpr);
putc ('\n', stderr);
}
t = build (MODIFY_EXPR, TREE_TYPE (gpr), gpr, build_int_2 (n_gpr, 0));
TREE_SIDE_EFFECTS (t) = 1;
@ -5866,7 +5873,8 @@ rs6000_emit_prologue ()
easiest way to get the frame unwind information emitted. */
if (current_function_calls_eh_return)
{
int i, regno;
unsigned int i, regno;
for (i = 0; ; ++i)
{
rtx addr, reg, mem;
@ -5877,7 +5885,8 @@ rs6000_emit_prologue ()
reg = gen_rtx_REG (reg_mode, regno);
addr = plus_constant (frame_reg_rtx,
info->ehrd_offset + sp_offset + reg_size * i);
info->ehrd_offset + sp_offset
+ reg_size * (int) i);
mem = gen_rtx_MEM (reg_mode, addr);
MEM_ALIAS_SET (mem) = rs6000_sr_alias_set;
@ -6123,7 +6132,8 @@ rs6000_emit_epilogue (sibcall)
/* Load exception handler data registers, if needed. */
if (current_function_calls_eh_return)
{
int i, regno;
unsigned int i, regno;
for (i = 0; ; ++i)
{
rtx addr, mem;
@ -6133,7 +6143,8 @@ rs6000_emit_epilogue (sibcall)
break;
addr = plus_constant (frame_reg_rtx,
info->ehrd_offset + sp_offset + reg_size * i);
info->ehrd_offset + sp_offset
+ reg_size * (int) i);
mem = gen_rtx_MEM (reg_mode, addr);
MEM_ALIAS_SET (mem) = rs6000_sr_alias_set;

2
gcc/config/rs6000/rs6000.md
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@ -8132,7 +8132,7 @@
"
{
#if HOST_BITS_PER_WIDE_INT != 32
operands[2] = GEN_INT ((INTVAL (operands[1]) << 32) >> 32);
operands[2] = GEN_INT ((INTVAL (operands[1]) ^ 0x80000000) - 0x80000000);
#endif
operands[3] = gen_lowpart_common (SImode, operands[0]);
}")