[binutils-gdb] Consolidate "if"s in tui_show_frame_info

[binutils-gdb] Consolidate "if"s in tui_show_frame_info

[Tom Tromey]

https://sourceware.org/git/gitweb.cgi?p=binutils-gdb.git;h=9ad7fdef7c72b2aca0398ce8e63b89e560873807

commit 9ad7fdef7c72b2aca0398ce8e63b89e560873807
Author: Tom Tromey <tom@tromey.com>
Date:   Sun Jun 23 21:00:01 2019 -0600

    Consolidate "if"s in tui_show_frame_info
    
    tui_show_frame_info has two parallel "if"s with the same condition and
    no intervening code.  The second "if" perhaps wasn't obviously
    identical, but earlier refactorings made it clearer, by pointing out
    that only source and disassembly windows can be handled here.  This
    merges the two statements.
    
    gdb/ChangeLog
    2019-07-17  Tom Tromey  <tom@tromey.com>
    
    	* tui/tui-stack.c (tui_show_frame_info): Consolidate "if"s.

Diff:
---
 gdb/ChangeLog       |  4 ++++
 gdb/tui/tui-stack.c | 62 +++++++++++++++++++++++------------------------------
 2 files changed, 31 insertions(+), 35 deletions(-)

diff --git a/gdb/ChangeLog b/gdb/ChangeLog
index f3cd6e9..54c19e0 100644
--- a/gdb/ChangeLog
+++ b/gdb/ChangeLog
@@ -1,5 +1,9 @@
 2019-07-17  Tom Tromey  <tom@tromey.com>
 
+	* tui/tui-stack.c (tui_show_frame_info): Consolidate "if"s.
+
+2019-07-17  Tom Tromey  <tom@tromey.com>
+
 	* tui/tui-winsource.c (tui_update_source_window_as_is)
 	(tui_update_source_windows_with_addr): Update.
 	* tui/tui-source.h (tui_set_source_content)
diff --git a/gdb/tui/tui-stack.c b/gdb/tui/tui-stack.c
index f761ac1..e1b996d 100644
--- a/gdb/tui/tui-stack.c
+++ b/gdb/tui/tui-stack.c
@@ -341,8 +341,6 @@ tui_show_frame_info (struct frame_info *fi)
 
   if (fi)
     {
-      int start_line;
-      CORE_ADDR low;
       struct tui_locator_window *locator = tui_locator_win_info_ptr ();
       int source_already_displayed;
       CORE_ADDR pc;
@@ -372,32 +370,15 @@ tui_show_frame_info (struct frame_info *fi)
 	return 0;
 
       tui_show_locator_content ();
-      start_line = 0;
       for (struct tui_source_window_base *win_info : tui_source_windows ())
 	{
 	  if (win_info == TUI_SRC_WIN)
 	    {
-	      start_line = (locator->line_no -
-			   (win_info->viewport_height / 2)) + 1;
+	      int start_line = (locator->line_no -
+				(win_info->viewport_height / 2)) + 1;
 	      if (start_line <= 0)
 		start_line = 1;
-	    }
-	  else
-	    {
-	      if (find_pc_partial_function (get_frame_pc (fi),
-					    NULL, &low, NULL) == 0)
-		{
-		  /* There is no symbol available for current PC.  There is no
-		     safe way how to "disassemble backwards".  */
-		  low = get_frame_pc (fi);
-		}
-	      else
-		low = tui_get_low_disassembly_address (get_frame_arch (fi),
-						       low, get_frame_pc (fi));
-	    }
 
-	  if (win_info == TUI_SRC_WIN)
-	    {
 	      struct tui_line_or_address l;
 
 	      l.loa = LOA_LINE;
@@ -415,23 +396,34 @@ tui_show_frame_info (struct frame_info *fi)
 	    }
 	  else
 	    {
-	      if (win_info == TUI_DISASM_WIN)
+	      CORE_ADDR low;
+
+	      if (find_pc_partial_function (get_frame_pc (fi),
+					    NULL, &low, NULL) == 0)
+		{
+		  /* There is no symbol available for current PC.  There is no
+		     safe way how to "disassemble backwards".  */
+		  low = get_frame_pc (fi);
+		}
+	      else
+		low = tui_get_low_disassembly_address (get_frame_arch (fi),
+						       low, get_frame_pc (fi));
+
+	      struct tui_line_or_address a;
+
+	      a.loa = LOA_ADDRESS;
+	      a.u.addr = low;
+	      if (!tui_addr_is_displayed (locator->addr,
+					  win_info, TRUE))
+		tui_update_source_window (win_info, get_frame_arch (fi),
+					  sal.symtab, a, TRUE);
+	      else
 		{
-		  struct tui_line_or_address a;
-
-		  a.loa = LOA_ADDRESS;
-		  a.u.addr = low;
-		  if (!tui_addr_is_displayed (locator->addr,
-					      win_info, TRUE))
-		    tui_update_source_window (win_info, get_frame_arch (fi),
-					      sal.symtab, a, TRUE);
-		  else
-		    {
-		      a.u.addr = locator->addr;
-		      win_info->set_is_exec_point_at (a);
-		    }
+		  a.u.addr = locator->addr;
+		  win_info->set_is_exec_point_at (a);
 		}
 	    }
+
 	  tui_update_exec_info (win_info);
 	}