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From: Zoran Zaric <zoran.zaric@amd.com>
To: <gdb-patches@sourceware.org>
Subject: [PATCH v3 10/17] Inline get_reg_value method of dwarf_expr_context
Date: Fri, 28 May 2021 16:46:41 +0100	[thread overview]
Message-ID: <20210528154648.60881-11-zoran.zaric@amd.com> (raw)
In-Reply-To: <20210528154648.60881-1-zoran.zaric@amd.com>

From: Zoran Zaric <Zoran.Zaric@amd.com>

The get_reg_value method is a small function that is only called once,
so it can be inlined to simplify the dwarf_expr_context class.

gdb/ChangeLog:

	* dwarf2/expr.c (dwarf_expr_context::get_reg_value): Remove
	method.
	(dwarf_expr_context::execute_stack_op): Inline get_reg_value
	method.
	* dwarf2/expr.h (dwarf_expr_context::get_reg_value): Remove
	method.
---
 gdb/dwarf2/expr.c | 24 +++++++-----------------
 gdb/dwarf2/expr.h |  6 ------
 2 files changed, 7 insertions(+), 23 deletions(-)

diff --git a/gdb/dwarf2/expr.c b/gdb/dwarf2/expr.c
index 303b2b5ba14..1a068741894 100644
--- a/gdb/dwarf2/expr.c
+++ b/gdb/dwarf2/expr.c
@@ -176,19 +176,6 @@ dwarf_expr_context::fetch (int n)
 
 /* See expr.h.  */
 
-struct value *
-dwarf_expr_context::get_reg_value (struct type *type, int reg)
-{
-  ensure_have_frame (this->frame, "DW_OP_regval_type");
-
-  struct gdbarch *gdbarch = get_frame_arch (this->frame);
-  int regnum = dwarf_reg_to_regnum_or_error (gdbarch, reg);
-
-  return value_from_register (type, regnum, this->frame);
-}
-
-/* See expr.h.  */
-
 void
 dwarf_expr_context::get_frame_base (const gdb_byte **start,
 				    size_t * length)
@@ -1544,14 +1531,17 @@ dwarf_expr_context::execute_stack_op (const gdb_byte *op_ptr,
 	case DW_OP_regval_type:
 	case DW_OP_GNU_regval_type:
 	  {
-	    struct type *type;
-
 	    op_ptr = safe_read_uleb128 (op_ptr, op_end, &reg);
 	    op_ptr = safe_read_uleb128 (op_ptr, op_end, &uoffset);
 	    cu_offset type_die_cu_off = (cu_offset) uoffset;
 
-	    type = get_base_type (type_die_cu_off);
-	    result_val = this->get_reg_value (type, reg);
+	    ensure_have_frame (this->frame, "DW_OP_regval_type");
+
+	    struct type *type = get_base_type (type_die_cu_off);
+	    int regnum
+	      = dwarf_reg_to_regnum_or_error (get_frame_arch (this->frame),
+					      reg);
+	    result_val = value_from_register (type, regnum, this->frame);
 	  }
 	  break;
 
diff --git a/gdb/dwarf2/expr.h b/gdb/dwarf2/expr.h
index 72cf14abcfc..aa80d1f31cb 100644
--- a/gdb/dwarf2/expr.h
+++ b/gdb/dwarf2/expr.h
@@ -211,12 +211,6 @@ struct dwarf_expr_context
   void execute_stack_op (const gdb_byte *op_ptr, const gdb_byte *op_end);
   void pop ();
 
-  /* Return a value of type TYPE, stored in register number REGNUM
-     in a current context.
-
-     REGNUM is a DWARF register number.  */
-  struct value *get_reg_value (struct type *type, int regnum);
-
   /* Return the location expression for the frame base attribute, in
      START and LENGTH.  The result must be live until the current
      expression evaluation is complete.  */
-- 
2.17.1


  parent reply	other threads:[~2021-05-28 15:47 UTC|newest]

Thread overview: 36+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2021-05-28 15:46 [PATCH v3 00/17] DWARF expression evaluator design cleanup Zoran Zaric
2021-05-28 15:46 ` [PATCH v3 01/17] Replace the symbol needs evaluator with a parser Zoran Zaric
2021-06-07 21:48   ` Simon Marchi
2021-06-11 17:22     ` Zaric, Zoran (Zare)
2021-05-28 15:46 ` [PATCH v3 02/17] Cleanup of the dwarf_expr_context constructor Zoran Zaric
2021-05-28 15:46 ` [PATCH v3 03/17] Move frame context info to dwarf_expr_context Zoran Zaric
2021-06-09  0:45   ` Simon Marchi
2021-06-11 17:16     ` Zaric, Zoran (Zare)
2021-05-28 15:46 ` [PATCH v3 04/17] Remove get_frame_cfa from dwarf_expr_context Zoran Zaric
2021-05-28 15:46 ` [PATCH v3 05/17] Move compilation unit info to dwarf_expr_context Zoran Zaric
2021-06-09  0:50   ` Simon Marchi
2021-06-11 17:19     ` Zaric, Zoran (Zare)
2021-05-28 15:46 ` [PATCH v3 06/17] Move dwarf_call " Zoran Zaric
2021-05-28 15:46 ` [PATCH v3 07/17] Move get_object_address " Zoran Zaric
2021-05-28 15:46 ` [PATCH v3 08/17] Move read_mem " Zoran Zaric
2021-05-28 15:46 ` [PATCH v3 09/17] Move push_dwarf_reg_entry_value to expr.c Zoran Zaric
2021-05-28 15:46 ` Zoran Zaric [this message]
2021-05-28 15:46 ` [PATCH v3 11/17] Remove empty frame and full evaluators Zoran Zaric
2021-05-28 15:46 ` [PATCH v3 12/17] Merge evaluate_for_locexpr_baton evaluator Zoran Zaric
2021-05-28 15:46 ` [PATCH v3 13/17] Move piece_closure and its support to expr.c Zoran Zaric
2021-05-28 15:46 ` [PATCH v3 14/17] Make value_copy also copy the stack data member Zoran Zaric
2021-05-28 15:46 ` [PATCH v3 15/17] Make DWARF evaluator return a single struct value Zoran Zaric
2021-08-11 17:00   ` Tom Tromey
2021-08-12 18:03     ` Tom Tromey
2021-08-13  9:57       ` Zoran Zaric
2021-08-13 16:59         ` Tom Tromey
2021-08-13 17:57           ` Zoran Zaric
2021-08-16 15:37             ` Tom Tromey
2021-08-16 16:05               ` Zoran Zaric
2021-08-16 17:32                 ` Tom Tromey
2021-05-28 15:46 ` [PATCH v3 16/17] Simplify dwarf_expr_context class interface Zoran Zaric
2021-06-09  1:01   ` Simon Marchi
2021-06-11 17:20     ` Zaric, Zoran (Zare)
2021-05-28 15:46 ` [PATCH v3 17/17] Add as_lval argument to expression evaluator Zoran Zaric
2021-06-09  1:04 ` [PATCH v3 00/17] DWARF expression evaluator design cleanup Simon Marchi
2021-08-05 16:38   ` Zaric, Zoran (Zare)

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