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riscv-gcc-1
Commit b660eccf by Richard Sandiford Committed by Richard Sandiford
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Add a fixed_size_mode_pod class 

This patch adds a POD version of fixed_size_mode.  The only current use
is for storing the __builtin_apply and __builtin_result register modes,
which were made fixed_size_modes by the previous patch.

2018-01-03  Richard Sandiford  <richard.sandiford@linaro.org>
	    Alan Hayward  <alan.hayward@arm.com>
	    David Sherwood  <david.sherwood@arm.com>

gcc/
	* coretypes.h (fixed_size_mode): Declare.
	(fixed_size_mode_pod): New typedef.
	* builtins.h (target_builtins::x_apply_args_mode)
	(target_builtins::x_apply_result_mode): Change type to
	fixed_size_mode_pod.
	* builtins.c (apply_args_size, apply_result_size, result_vector)
	(expand_builtin_apply_args_1, expand_builtin_apply)
	(expand_builtin_return): Update accordingly.

Co-Authored-By: Alan Hayward <alan.hayward@arm.com>
Co-Authored-By: David Sherwood <david.sherwood@arm.com>

From-SVN: r256193
parent 16c78b66
Showing with 25 additions and 12 deletions
gcc/ChangeLog
2018-01-03 Richard Sandiford <richard.sandiford@linaro.org>
Alan Hayward <alan.hayward@arm.com>
David Sherwood <david.sherwood@arm.com>
* coretypes.h (fixed_size_mode): Declare.
(fixed_size_mode_pod): New typedef.
* builtins.h (target_builtins::x_apply_args_mode)
(target_builtins::x_apply_result_mode): Change type to
fixed_size_mode_pod.
* builtins.c (apply_args_size, apply_result_size, result_vector)
(expand_builtin_apply_args_1, expand_builtin_apply)
(expand_builtin_return): Update accordingly.
2018-01-03 Richard Sandiford <richard.sandiford@linaro.org>
* cse.c (hash_rtx_cb): Hash only the encoded elements.
* cselib.c (cselib_hash_rtx): Likewise.
......
gcc/builtins.c
......@@ -1364,7 +1364,6 @@ apply_args_size (void)
static int size = -1;
int align;
unsigned int regno;
machine_mode mode;
/* The values computed by this function never change. */
if (size < 0)
......@@ -1380,7 +1379,7 @@ apply_args_size (void)
for (regno = 0; regno < FIRST_PSEUDO_REGISTER; regno++)
if (FUNCTION_ARG_REGNO_P (regno))
{
mode = targetm.calls.get_raw_arg_mode (regno);
fixed_size_mode mode = targetm.calls.get_raw_arg_mode (regno);
gcc_assert (mode != VOIDmode);
......@@ -1392,7 +1391,7 @@ apply_args_size (void)
}
else
{
apply_args_mode[regno] = VOIDmode;
apply_args_mode[regno] = as_a <fixed_size_mode> (VOIDmode);
}
}
return size;
......@@ -1406,7 +1405,6 @@ apply_result_size (void)
{
static int size = -1;
int align, regno;
machine_mode mode;
/* The values computed by this function never change. */
if (size < 0)
......@@ -1416,7 +1414,7 @@ apply_result_size (void)
for (regno = 0; regno < FIRST_PSEUDO_REGISTER; regno++)
if (targetm.calls.function_value_regno_p (regno))
{
mode = targetm.calls.get_raw_result_mode (regno);
fixed_size_mode mode = targetm.calls.get_raw_result_mode (regno);
gcc_assert (mode != VOIDmode);
......@@ -1427,7 +1425,7 @@ apply_result_size (void)
apply_result_mode[regno] = mode;
}
else
apply_result_mode[regno] = VOIDmode;
apply_result_mode[regno] = as_a <fixed_size_mode> (VOIDmode);
/* Allow targets that use untyped_call and untyped_return to override
the size so that machine-specific information can be stored here. */
......@@ -1446,7 +1444,7 @@ static rtx
result_vector (int savep, rtx result)
{
int regno, size, align, nelts;
machine_mode mode;
fixed_size_mode mode;
rtx reg, mem;
rtx *savevec = XALLOCAVEC (rtx, FIRST_PSEUDO_REGISTER);
......@@ -1475,7 +1473,7 @@ expand_builtin_apply_args_1 (void)
{
rtx registers, tem;
int size, align, regno;
machine_mode mode;
fixed_size_mode mode;
rtx struct_incoming_value = targetm.calls.struct_value_rtx (cfun ? TREE_TYPE (cfun->decl) : 0, 1);
/* Create a block where the arg-pointer, structure value address,
......@@ -1579,7 +1577,7 @@ static rtx
expand_builtin_apply (rtx function, rtx arguments, rtx argsize)
{
int size, align, regno;
machine_mode mode;
fixed_size_mode mode;
rtx incoming_args, result, reg, dest, src;
rtx_call_insn *call_insn;
rtx old_stack_level = 0;
......@@ -1740,7 +1738,7 @@ static void
expand_builtin_return (rtx result)
{
int size, align, regno;
machine_mode mode;
fixed_size_mode mode;
rtx reg;
rtx_insn *call_fusage = 0;
......
gcc/builtins.h
......@@ -29,14 +29,14 @@ struct target_builtins {
the register is not used for calling a function. If the machine
has register windows, this gives only the outbound registers.
INCOMING_REGNO gives the corresponding inbound register. */
machine_mode x_apply_args_mode[FIRST_PSEUDO_REGISTER];
fixed_size_mode_pod x_apply_args_mode[FIRST_PSEUDO_REGISTER];
/* For each register that may be used for returning values, this gives
a mode used to copy the register's value. VOIDmode indicates the
register is not used for returning values. If the machine has
register windows, this gives only the outbound registers.
INCOMING_REGNO gives the corresponding inbound register. */
machine_mode x_apply_result_mode[FIRST_PSEUDO_REGISTER];
fixed_size_mode_pod x_apply_result_mode[FIRST_PSEUDO_REGISTER];
};
extern struct target_builtins default_target_builtins;
......
gcc/coretypes.h
......@@ -59,6 +59,7 @@ class scalar_mode;
class scalar_int_mode;
class scalar_float_mode;
class complex_mode;
class fixed_size_mode;
template<typename> class opt_mode;
typedef opt_mode<scalar_mode> opt_scalar_mode;
typedef opt_mode<scalar_int_mode> opt_scalar_int_mode;
......@@ -66,6 +67,7 @@ typedef opt_mode<scalar_float_mode> opt_scalar_float_mode;
template<typename> class pod_mode;
typedef pod_mode<scalar_mode> scalar_mode_pod;
typedef pod_mode<scalar_int_mode> scalar_int_mode_pod;
typedef pod_mode<fixed_size_mode> fixed_size_mode_pod;
/* Subclasses of rtx_def, using indentation to show the class
hierarchy, along with the relevant invariant.
......
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