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Convert target-descriptions.c to new hash table

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This converts target-descriptions.c to use the new hash table.

Change-Id: I03dfc6053c9856c5578548afcfdf58abf8b7ec2c
Co-Authored-By: Tom Tromey <tom@tromey.com>
This commit is contained in:
Simon Marchi 2024-08-19 15:03:50 +00:00
parent f2f3218633
commit a0b54aa74d
1 changed files with 8 additions and 12 deletions
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20
gdb/target-descriptions.c
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@ -21,6 +21,7 @@
#include "arch-utils.h"
#include "cli/cli-cmds.h"
#include "gdbsupport/unordered_set.h"
#include "gdbtypes.h"
#include "reggroups.h"
#include "target.h"
@ -30,7 +31,6 @@
#include "osabi.h"
#include "gdbsupport/gdb_obstack.h"
#include "hashtab.h"
#include "inferior.h"
#include <algorithm>
#include "completer.h"
@ -1042,16 +1042,12 @@ tdesc_use_registers (struct gdbarch *gdbarch,
data->arch_regs = std::move (early_data->arch_regs);
/* Build up a set of all registers, so that we can assign register
numbers where needed. The hash table expands as necessary, so
the initial size is arbitrary. */
htab_up reg_hash (htab_create (37, htab_hash_pointer, htab_eq_pointer,
NULL));
numbers where needed. */
gdb::unordered_set<tdesc_reg *> reg_hash;
for (const tdesc_feature_up &feature : target_desc->features)
for (const tdesc_reg_up &reg : feature->registers)
{
void **slot = htab_find_slot (reg_hash.get (), reg.get (), INSERT);
*slot = reg.get ();
reg_hash.insert (reg.get ());
/* Add reggroup if its new. */
if (!reg->group.empty ())
if (reggroup_find (gdbarch, reg->group.c_str ()) == NULL)
@ -1064,7 +1060,7 @@ tdesc_use_registers (struct gdbarch *gdbarch,
architecture. */
for (const tdesc_arch_reg &arch_reg : data->arch_regs)
if (arch_reg.reg != NULL)
htab_remove_elt (reg_hash.get (), arch_reg.reg);
reg_hash.erase (arch_reg.reg);
/* Assign numbers to the remaining registers and add them to the
list of registers. The new numbers are always above gdbarch_num_regs.
@ -1082,7 +1078,7 @@ tdesc_use_registers (struct gdbarch *gdbarch,
{
for (const tdesc_feature_up &feature : target_desc->features)
for (const tdesc_reg_up &reg : feature->registers)
if (htab_find (reg_hash.get (), reg.get ()) != NULL)
if (reg_hash.contains (reg.get ()))
{
int regno = unk_reg_cb (gdbarch, feature.get (),
reg->name.c_str (), num_regs);
@ -1093,7 +1089,7 @@ tdesc_use_registers (struct gdbarch *gdbarch,
data->arch_regs.emplace_back (nullptr, nullptr);
data->arch_regs[regno] = tdesc_arch_reg (reg.get (), NULL);
num_regs = regno + 1;
htab_remove_elt (reg_hash.get (), reg.get ());
reg_hash.erase (reg.get ());
}
}
}
@ -1105,7 +1101,7 @@ tdesc_use_registers (struct gdbarch *gdbarch,
unnumbered registers. */
for (const tdesc_feature_up &feature : target_desc->features)
for (const tdesc_reg_up &reg : feature->registers)
if (htab_find (reg_hash.get (), reg.get ()) != NULL)
if (reg_hash.contains (reg.get ()))
{
data->arch_regs.emplace_back (reg.get (), nullptr);
num_regs++;