[64/77] Add a scalar_mode class
Richard Sandiford
richard.sandiford@linaro.org
Thu Jul 13 09:01:00 GMT 2017
This patch adds a scalar_mode class that can hold any scalar mode,
specifically:
- scalar integers
- scalar floating-point values
- scalar fractional modes
- scalar accumulator modes
- pointer bounds modes
To start with this patch uses this type for GET_MODE_INNER.
Later patches add more uses.
2017-07-13 Richard Sandiford <richard.sandiford@linaro.org>
Alan Hayward <alan.hayward@arm.com>
David Sherwood <david.sherwood@arm.com>
gcc/
* coretypes.h (scalar_mode): New class.
* machmode.h (scalar_mode): Likewise.
(scalar_mode::includes_p): New function.
(mode_to_inner): Return a scalar_mode rather than a machine_mode.
* gdbhooks.py (build_pretty_printers): Handle scalar_mode.
* genmodes.c (get_mode_class): Handle remaining scalar modes.
* cfgexpand.c (expand_debug_expr): Use scalar_mode.
* expmed.c (store_bit_field_1): Likewise.
(extract_bit_field_1): Likewise.
* expr.c (write_complex_part): Likewise.
(read_complex_part): Likewise.
(emit_move_complex_push): Likewise.
(expand_expr_real_2): Likewise.
* function.c (assign_parm_setup_reg): Likewise.
(assign_parms_unsplit_complex): Likewise.
* optabs.c (expand_binop): Likewise.
* rtlanal.c (subreg_get_info): Likewise.
* simplify-rtx.c (simplify_immed_subreg): Likewise.
* varasm.c (output_constant_pool_2): Likewise.
Index: gcc/coretypes.h
===================================================================
--- gcc/coretypes.h 2017-07-13 09:18:28.587718194 +0100
+++ gcc/coretypes.h 2017-07-13 09:18:53.271650545 +0100
@@ -55,6 +55,7 @@ typedef const struct simple_bitmap_def *
struct rtx_def;
typedef struct rtx_def *rtx;
typedef const struct rtx_def *const_rtx;
+class scalar_mode;
class scalar_int_mode;
class scalar_float_mode;
template<typename> class opt_mode;
@@ -317,6 +318,7 @@ #define rtx_insn struct _dont_use_rtx_in
#define tree union _dont_use_tree_here_ *
#define const_tree union _dont_use_tree_here_ *
+typedef struct scalar_mode scalar_mode;
typedef struct scalar_int_mode scalar_int_mode;
typedef struct scalar_float_mode scalar_float_mode;
Index: gcc/machmode.h
===================================================================
--- gcc/machmode.h 2017-07-13 09:18:41.680558844 +0100
+++ gcc/machmode.h 2017-07-13 09:18:53.274650323 +0100
@@ -410,6 +410,47 @@ scalar_float_mode::includes_p (machine_m
return SCALAR_FLOAT_MODE_P (m);
}
+/* Represents a machine mode that is known to be scalar. */
+class scalar_mode
+{
+public:
+ typedef mode_traits<scalar_mode>::from_int from_int;
+
+ ALWAYS_INLINE scalar_mode () {}
+ ALWAYS_INLINE scalar_mode (from_int m) : m_mode (machine_mode (m)) {}
+ ALWAYS_INLINE scalar_mode (const scalar_int_mode &m) : m_mode (m) {}
+ ALWAYS_INLINE scalar_mode (const scalar_float_mode &m) : m_mode (m) {}
+ ALWAYS_INLINE scalar_mode (const scalar_int_mode_pod &m) : m_mode (m) {}
+ ALWAYS_INLINE operator machine_mode () const { return m_mode; }
+
+ static bool includes_p (machine_mode);
+
+protected:
+ machine_mode m_mode;
+};
+
+/* Return true if M represents some kind of scalar value. */
+
+inline bool
+scalar_mode::includes_p (machine_mode m)
+{
+ switch (GET_MODE_CLASS (m))
+ {
+ case MODE_INT:
+ case MODE_PARTIAL_INT:
+ case MODE_FRACT:
+ case MODE_UFRACT:
+ case MODE_ACCUM:
+ case MODE_UACCUM:
+ case MODE_FLOAT:
+ case MODE_DECIMAL_FLOAT:
+ case MODE_POINTER_BOUNDS:
+ return true;
+ default:
+ return false;
+ }
+}
+
/* Return the base GET_MODE_SIZE value for MODE. */
ALWAYS_INLINE unsigned short
@@ -441,14 +482,15 @@ mode_to_precision (machine_mode mode)
/* Return the base GET_MODE_INNER value for MODE. */
-ALWAYS_INLINE machine_mode
+ALWAYS_INLINE scalar_mode
mode_to_inner (machine_mode mode)
{
#if GCC_VERSION >= 4001
- return (machine_mode) (__builtin_constant_p (mode)
- ? mode_inner_inline (mode) : mode_inner[mode]);
+ return scalar_mode::from_int (__builtin_constant_p (mode)
+ ? mode_inner_inline (mode)
+ : mode_inner[mode]);
#else
- return (machine_mode) mode_inner[mode];
+ return scalar_mode::from_int (mode_inner[mode]);
#endif
}
Index: gcc/gdbhooks.py
===================================================================
--- gcc/gdbhooks.py 2017-07-13 09:18:28.587718194 +0100
+++ gcc/gdbhooks.py 2017-07-13 09:18:53.273650396 +0100
@@ -549,7 +549,7 @@ def build_pretty_printer():
'pod_mode', MachineModePrinter)
pp.add_printer_for_types(['scalar_int_mode_pod'],
'pod_mode', MachineModePrinter)
- for mode in 'scalar_int_mode', 'scalar_float_mode':
+ for mode in 'scalar_mode', 'scalar_int_mode', 'scalar_float_mode':
pp.add_printer_for_types([mode], mode, MachineModePrinter)
return pp
Index: gcc/genmodes.c
===================================================================
--- gcc/genmodes.c 2017-07-13 09:18:28.587718194 +0100
+++ gcc/genmodes.c 2017-07-13 09:18:53.274650323 +0100
@@ -1141,6 +1141,13 @@ get_mode_class (struct mode_data *mode)
case MODE_PARTIAL_INT:
return "scalar_int_mode";
+ case MODE_FRACT:
+ case MODE_UFRACT:
+ case MODE_ACCUM:
+ case MODE_UACCUM:
+ case MODE_POINTER_BOUNDS:
+ return "scalar_mode";
+
case MODE_FLOAT:
case MODE_DECIMAL_FLOAT:
return "scalar_float_mode";
Index: gcc/cfgexpand.c
===================================================================
--- gcc/cfgexpand.c 2017-07-13 09:18:51.574777404 +0100
+++ gcc/cfgexpand.c 2017-07-13 09:18:53.271650545 +0100
@@ -4821,7 +4821,7 @@ expand_debug_expr (tree exp)
GET_MODE_INNER (mode)));
else
{
- machine_mode imode = GET_MODE_INNER (mode);
+ scalar_mode imode = GET_MODE_INNER (mode);
rtx re, im;
if (MEM_P (op0))
Index: gcc/expmed.c
===================================================================
--- gcc/expmed.c 2017-07-13 09:18:52.815684419 +0100
+++ gcc/expmed.c 2017-07-13 09:18:53.272650471 +0100
@@ -758,16 +758,16 @@ store_bit_field_1 (rtx str_rtx, unsigned
/* Use vec_set patterns for inserting parts of vectors whenever
available. */
- if (VECTOR_MODE_P (GET_MODE (op0))
+ machine_mode outermode = GET_MODE (op0);
+ scalar_mode innermode = GET_MODE_INNER (outermode);
+ if (VECTOR_MODE_P (outermode)
&& !MEM_P (op0)
- && optab_handler (vec_set_optab, GET_MODE (op0)) != CODE_FOR_nothing
- && fieldmode == GET_MODE_INNER (GET_MODE (op0))
- && bitsize == GET_MODE_UNIT_BITSIZE (GET_MODE (op0))
- && !(bitnum % GET_MODE_UNIT_BITSIZE (GET_MODE (op0))))
+ && optab_handler (vec_set_optab, outermode) != CODE_FOR_nothing
+ && fieldmode == innermode
+ && bitsize == GET_MODE_BITSIZE (innermode)
+ && !(bitnum % GET_MODE_BITSIZE (innermode)))
{
struct expand_operand ops[3];
- machine_mode outermode = GET_MODE (op0);
- machine_mode innermode = GET_MODE_INNER (outermode);
enum insn_code icode = optab_handler (vec_set_optab, outermode);
int pos = bitnum / GET_MODE_BITSIZE (innermode);
@@ -1616,15 +1616,15 @@ extract_bit_field_1 (rtx str_rtx, unsign
/* Use vec_extract patterns for extracting parts of vectors whenever
available. */
- if (VECTOR_MODE_P (GET_MODE (op0))
+ machine_mode outermode = GET_MODE (op0);
+ scalar_mode innermode = GET_MODE_INNER (outermode);
+ if (VECTOR_MODE_P (outermode)
&& !MEM_P (op0)
- && optab_handler (vec_extract_optab, GET_MODE (op0)) != CODE_FOR_nothing
- && ((bitnum + bitsize - 1) / GET_MODE_UNIT_BITSIZE (GET_MODE (op0))
- == bitnum / GET_MODE_UNIT_BITSIZE (GET_MODE (op0))))
+ && optab_handler (vec_extract_optab, outermode) != CODE_FOR_nothing
+ && ((bitnum + bitsize - 1) / GET_MODE_BITSIZE (innermode)
+ == bitnum / GET_MODE_BITSIZE (innermode)))
{
struct expand_operand ops[3];
- machine_mode outermode = GET_MODE (op0);
- machine_mode innermode = GET_MODE_INNER (outermode);
enum insn_code icode = optab_handler (vec_extract_optab, outermode);
unsigned HOST_WIDE_INT pos = bitnum / GET_MODE_BITSIZE (innermode);
Index: gcc/expr.c
===================================================================
--- gcc/expr.c 2017-07-13 09:18:51.653771449 +0100
+++ gcc/expr.c 2017-07-13 09:18:53.273650396 +0100
@@ -3114,7 +3114,7 @@ set_storage_via_setmem (rtx object, rtx
write_complex_part (rtx cplx, rtx val, bool imag_p)
{
machine_mode cmode;
- machine_mode imode;
+ scalar_mode imode;
unsigned ibitsize;
if (GET_CODE (cplx) == CONCAT)
@@ -3175,7 +3175,8 @@ write_complex_part (rtx cplx, rtx val, b
rtx
read_complex_part (rtx cplx, bool imag_p)
{
- machine_mode cmode, imode;
+ machine_mode cmode;
+ scalar_mode imode;
unsigned ibitsize;
if (GET_CODE (cplx) == CONCAT)
@@ -3371,7 +3372,7 @@ emit_move_resolve_push (machine_mode mod
rtx_insn *
emit_move_complex_push (machine_mode mode, rtx x, rtx y)
{
- machine_mode submode = GET_MODE_INNER (mode);
+ scalar_mode submode = GET_MODE_INNER (mode);
bool imag_first;
#ifdef PUSH_ROUNDING
@@ -9328,7 +9329,7 @@ #define REDUCE_BIT_FIELD(expr) (reduce_b
GET_MODE_INNER (GET_MODE (target)), 0);
if (reg_overlap_mentioned_p (temp, op1))
{
- machine_mode imode = GET_MODE_INNER (GET_MODE (target));
+ scalar_mode imode = GET_MODE_INNER (GET_MODE (target));
temp = adjust_address_nv (target, imode,
GET_MODE_SIZE (imode));
if (reg_overlap_mentioned_p (temp, op0))
Index: gcc/function.c
===================================================================
--- gcc/function.c 2017-07-13 09:18:39.589733813 +0100
+++ gcc/function.c 2017-07-13 09:18:53.273650396 +0100
@@ -3372,8 +3372,7 @@ assign_parm_setup_reg (struct assign_par
/* Mark complex types separately. */
if (GET_CODE (parmreg) == CONCAT)
{
- machine_mode submode
- = GET_MODE_INNER (GET_MODE (parmreg));
+ scalar_mode submode = GET_MODE_INNER (GET_MODE (parmreg));
int regnor = REGNO (XEXP (parmreg, 0));
int regnoi = REGNO (XEXP (parmreg, 1));
rtx stackr = adjust_address_nv (data->stack_parm, submode, 0);
@@ -3510,7 +3509,7 @@ assign_parms_unsplit_complex (struct ass
&& targetm.calls.split_complex_arg (TREE_TYPE (parm)))
{
rtx tmp, real, imag;
- machine_mode inner = GET_MODE_INNER (DECL_MODE (parm));
+ scalar_mode inner = GET_MODE_INNER (DECL_MODE (parm));
real = DECL_RTL (fnargs[i]);
imag = DECL_RTL (fnargs[i + 1]);
Index: gcc/optabs.c
===================================================================
--- gcc/optabs.c 2017-07-13 09:18:51.661770846 +0100
+++ gcc/optabs.c 2017-07-13 09:18:53.274650323 +0100
@@ -1229,7 +1229,7 @@ expand_binop (machine_mode mode, optab b
{
/* The scalar may have been extended to be too wide. Truncate
it back to the proper size to fit in the broadcast vector. */
- machine_mode inner_mode = GET_MODE_INNER (mode);
+ scalar_mode inner_mode = GET_MODE_INNER (mode);
if (!CONST_INT_P (op1)
&& (GET_MODE_BITSIZE (as_a <scalar_int_mode> (GET_MODE (op1)))
> GET_MODE_BITSIZE (inner_mode)))
Index: gcc/rtlanal.c
===================================================================
--- gcc/rtlanal.c 2017-07-13 09:18:51.664770620 +0100
+++ gcc/rtlanal.c 2017-07-13 09:18:53.275650248 +0100
@@ -3645,7 +3645,7 @@ subreg_get_info (unsigned int xregno, ma
{
nregs_xmode = HARD_REGNO_NREGS_WITH_PADDING (xregno, xmode);
unsigned int nunits = GET_MODE_NUNITS (xmode);
- machine_mode xmode_unit = GET_MODE_INNER (xmode);
+ scalar_mode xmode_unit = GET_MODE_INNER (xmode);
gcc_assert (HARD_REGNO_NREGS_HAS_PADDING (xregno, xmode_unit));
gcc_assert (nregs_xmode
== (nunits
Index: gcc/simplify-rtx.c
===================================================================
--- gcc/simplify-rtx.c 2017-07-13 09:18:48.356023575 +0100
+++ gcc/simplify-rtx.c 2017-07-13 09:18:53.276650175 +0100
@@ -5719,7 +5719,7 @@ simplify_immed_subreg (machine_mode oute
rtx result_s = NULL;
rtvec result_v = NULL;
enum mode_class outer_class;
- machine_mode outer_submode;
+ scalar_mode outer_submode;
int max_bitsize;
/* Some ports misuse CCmode. */
Index: gcc/varasm.c
===================================================================
--- gcc/varasm.c 2017-07-13 09:18:38.669811945 +0100
+++ gcc/varasm.c 2017-07-13 09:18:53.276650175 +0100
@@ -3852,7 +3852,7 @@ output_constant_pool_2 (machine_mode mod
case MODE_VECTOR_UACCUM:
{
int i, units;
- machine_mode submode = GET_MODE_INNER (mode);
+ scalar_mode submode = GET_MODE_INNER (mode);
unsigned int subalign = MIN (align, GET_MODE_BITSIZE (submode));
gcc_assert (GET_CODE (x) == CONST_VECTOR);
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