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predicates.md (easy_fp_constant): Discount decimal float modes.

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* config/rs6000/predicates.md (easy_fp_constant): Discount decimal
	float modes.
	* config/rs6000/rs6000.c (rs6000_scalar_mode_supported_p): New.
	(TARGET_SCALAR_MODE_SUPPORTED_P): Define.
	(USE_FP_FOR_ARG): Reject decimal float modes.
	(function_arg_advance): Likewise.
	(output_toc): Handle emitting TDmode, DDmode and SDmode constants.
	(rs6000_handle_altivec_attribute): Do not permit decimal floating
	point types in AltiVec vectors.
	(rs6000_function_value): Use GP_ARG_RETURN for decimal floats.
	(rs6000_libcall_value): Likewise.

From-SVN: r109533
This commit is contained in:
Ben Elliston 2006-01-10 05:46:45 +00:00 committed by Ben Elliston
parent eb73ef9135
commit 00b79d543d
3 changed files with 76 additions and 10 deletions
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27
gcc/ChangeLog
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@ -1,3 +1,24 @@
2006-01-10 Ben Elliston <bje@au.ibm.com>
* config/rs6000/predicates.md (easy_fp_constant): Discount decimal
float modes.
* config/rs6000/rs6000.c (rs6000_scalar_mode_supported_p): New.
(TARGET_SCALAR_MODE_SUPPORTED_P): Define.
(USE_FP_FOR_ARG): Reject decimal float modes.
(function_arg_advance): Likewise.
(output_toc): Handle emitting TDmode, DDmode and SDmode constants.
(rs6000_handle_altivec_attribute): Do not permit decimal floating
point types in AltiVec vectors.
(rs6000_function_value): Use GP_ARG_RETURN for decimal floats.
(rs6000_libcall_value): Likewise.
2006-01-10 Ben Elliston <bje@au.ibm.com>
* expr.c (emit_move_change_mode): Always adjust addresses, not
just during reload. Copy replacements only during reload.
(emit_move_insn_1): Move MODE_DECIMAL_FLOAT modes by invoking
emit_move_via_integer.
2006-01-09 Bob Wilson <bob.wilson@acm.org>
* config/xtensa/ieee754-df.S: New file.
@ -35,6 +56,12 @@
* config/i386/sse.md (*vec_extractv2di_1_sse2): New.
(*vec_extractv2di_1_sse): New.
2006-01-09 Ben Elliston <bje@au.ibm.com>
* doc/tm.texi (Data Output): Add REAL_VALUE_TO_TARGET_DECIMAL32,
REAL_VALUE_TO_TARGET_DECIMAL64 and REAL_VALUE_TO_TARGET_DECIMAL64
macros.
2006-01-09 Ben Elliston <bje@au.ibm.com>
* config/rs6000/rs6000.h (GO_IF_LEGITIMATE_ADDRESS): Typo fix.

5
gcc/config/rs6000/predicates.md
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@ -1,5 +1,5 @@
;; Predicate definitions for POWER and PowerPC.
;; Copyright (C) 2005 Free Software Foundation, Inc.
;; Copyright (C) 2005, 2006 Free Software Foundation, Inc.
;;
;; This file is part of GCC.
;;
@ -195,6 +195,9 @@
&& mode != DImode)
return 1;
if (DECIMAL_FLOAT_MODE_P (mode))
return 0;
/* If we are using V.4 style PIC, consider all constants to be hard. */
if (flag_pic && DEFAULT_ABI == ABI_V4)
return 0;

54
gcc/config/rs6000/rs6000.c
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@ -1,6 +1,7 @@
/* Subroutines used for code generation on IBM RS/6000.
Copyright (C) 1991, 1993, 1994, 1995, 1996, 1997, 1998, 1999,
2000, 2001, 2002, 2003, 2004, 2005 Free Software Foundation, Inc.
2000, 2001, 2002, 2003, 2004, 2005, 2006 Free Software Foundation,
Inc.
Contributed by Richard Kenner (kenner@vlsi1.ultra.nyu.edu)
This file is part of GCC.
@ -742,6 +743,7 @@ static void rs6000_darwin_file_start (void);
static tree rs6000_build_builtin_va_list (void);
static tree rs6000_gimplify_va_arg (tree, tree, tree *, tree *);
static bool rs6000_must_pass_in_stack (enum machine_mode, tree);
static bool rs6000_scalar_mode_supported_p (enum machine_mode);
static bool rs6000_vector_mode_supported_p (enum machine_mode);
static int get_vec_cmp_insn (enum rtx_code, enum machine_mode,
enum machine_mode);
@ -981,6 +983,9 @@ static const char alt_reg_names[][8] =
#undef TARGET_EH_RETURN_FILTER_MODE
#define TARGET_EH_RETURN_FILTER_MODE rs6000_eh_return_filter_mode
#undef TARGET_SCALAR_MODE_SUPPORTED_P
#define TARGET_SCALAR_MODE_SUPPORTED_P rs6000_scalar_mode_supported_p
#undef TARGET_VECTOR_MODE_SUPPORTED_P
#define TARGET_VECTOR_MODE_SUPPORTED_P rs6000_vector_mode_supported_p
@ -4140,6 +4145,7 @@ rs6000_emit_move (rtx dest, rtx source, enum machine_mode mode)
/* Nonzero if we can use a floating-point register to pass this arg. */
#define USE_FP_FOR_ARG_P(CUM,MODE,TYPE) \
(SCALAR_FLOAT_MODE_P (MODE) \
&& !DECIMAL_FLOAT_MODE_P (MODE) \
&& (CUM)->fregno <= FP_ARG_MAX_REG \
&& TARGET_HARD_FLOAT && TARGET_FPRS)
@ -4664,6 +4670,7 @@ function_arg_advance (CUMULATIVE_ARGS *cum, enum machine_mode mode,
cum->words = align_words + n_words;
if (SCALAR_FLOAT_MODE_P (mode)
&& !DECIMAL_FLOAT_MODE_P (mode)
&& TARGET_HARD_FLOAT && TARGET_FPRS)
cum->fregno += (GET_MODE_SIZE (mode) + 7) >> 3;
@ -15746,13 +15753,17 @@ output_toc (FILE *file, rtx x, int labelno, enum machine_mode mode)
/* Handle FP constants specially. Note that if we have a minimal
TOC, things we put here aren't actually in the TOC, so we can allow
FP constants. */
if (GET_CODE (x) == CONST_DOUBLE && GET_MODE (x) == TFmode)
if (GET_CODE (x) == CONST_DOUBLE &&
(GET_MODE (x) == TFmode || GET_MODE (x) == TDmode))
{
REAL_VALUE_TYPE rv;
long k[4];
REAL_VALUE_FROM_CONST_DOUBLE (rv, x);
REAL_VALUE_TO_TARGET_LONG_DOUBLE (rv, k);
if (DECIMAL_FLOAT_MODE_P (GET_MODE (x)))
REAL_VALUE_TO_TARGET_DECIMAL128 (rv, k);
else
REAL_VALUE_TO_TARGET_LONG_DOUBLE (rv, k);
if (TARGET_64BIT)
{
@ -15781,13 +15792,18 @@ output_toc (FILE *file, rtx x, int labelno, enum machine_mode mode)
return;
}
}
else if (GET_CODE (x) == CONST_DOUBLE && GET_MODE (x) == DFmode)
else if (GET_CODE (x) == CONST_DOUBLE &&
(GET_MODE (x) == DFmode || GET_MODE (x) == DDmode))
{
REAL_VALUE_TYPE rv;
long k[2];
REAL_VALUE_FROM_CONST_DOUBLE (rv, x);
REAL_VALUE_TO_TARGET_DOUBLE (rv, k);
if (DECIMAL_FLOAT_MODE_P (GET_MODE (x)))
REAL_VALUE_TO_TARGET_DECIMAL64 (rv, k);
else
REAL_VALUE_TO_TARGET_DOUBLE (rv, k);
if (TARGET_64BIT)
{
@ -15812,13 +15828,17 @@ output_toc (FILE *file, rtx x, int labelno, enum machine_mode mode)
return;
}
}
else if (GET_CODE (x) == CONST_DOUBLE && GET_MODE (x) == SFmode)
else if (GET_CODE (x) == CONST_DOUBLE &&
(GET_MODE (x) == SFmode || GET_MODE (x) == SDmode))
{
REAL_VALUE_TYPE rv;
long l;
REAL_VALUE_FROM_CONST_DOUBLE (rv, x);
REAL_VALUE_TO_TARGET_SINGLE (rv, l);
if (DECIMAL_FLOAT_MODE_P (GET_MODE (x)))
REAL_VALUE_TO_TARGET_DECIMAL32 (rv, l);
else
REAL_VALUE_TO_TARGET_SINGLE (rv, l);
if (TARGET_64BIT)
{
@ -17299,6 +17319,8 @@ rs6000_handle_altivec_attribute (tree *node,
error ("use of boolean types in AltiVec types is invalid");
else if (TREE_CODE (type) == COMPLEX_TYPE)
error ("use of %<complex%> in AltiVec types is invalid");
else if (DECIMAL_FLOAT_MODE_P (mode))
error ("use of decimal floating point types in AltiVec types is invalid");
switch (altivec_type)
{
@ -19010,7 +19032,9 @@ rs6000_function_value (tree valtype, tree func ATTRIBUTE_UNUSED)
else
mode = TYPE_MODE (valtype);
if (SCALAR_FLOAT_TYPE_P (valtype) && TARGET_HARD_FLOAT && TARGET_FPRS)
if (DECIMAL_FLOAT_MODE_P (mode))
regno = GP_ARG_RETURN;
else if (SCALAR_FLOAT_TYPE_P (valtype) && TARGET_HARD_FLOAT && TARGET_FPRS)
regno = FP_ARG_RETURN;
else if (TREE_CODE (valtype) == COMPLEX_TYPE
&& targetm.calls.split_complex_arg)
@ -19049,7 +19073,9 @@ rs6000_libcall_value (enum machine_mode mode)
GEN_INT (4))));
}
if (SCALAR_FLOAT_MODE_P (mode)
if (DECIMAL_FLOAT_MODE_P (mode))
regno = GP_ARG_RETURN;
else if (SCALAR_FLOAT_MODE_P (mode)
&& TARGET_HARD_FLOAT && TARGET_FPRS)
regno = FP_ARG_RETURN;
else if (ALTIVEC_VECTOR_MODE (mode)
@ -19177,6 +19203,16 @@ rs6000_eh_return_filter_mode (void)
return TARGET_32BIT ? SImode : word_mode;
}
/* Target hook for scalar_mode_supported_p. */
static bool
rs6000_scalar_mode_supported_p (enum machine_mode mode)
{
if (DECIMAL_FLOAT_MODE_P (mode))
return true;
else
return default_scalar_mode_supported_p (mode);
}
/* Target hook for vector_mode_supported_p. */
static bool
rs6000_vector_mode_supported_p (enum machine_mode mode)