[binutils-gdb] Remove redundant assignment from dwarf2_find_containing_comp_unit

[Tom Tromey <tromey at sourceware dot org>]

https://sourceware.org/git/gitweb.cgi?p=binutils-gdb.git;h=82cb27ff6b4e1ae811e72a02dddc3db4c9ff97b8

commit 82cb27ff6b4e1ae811e72a02dddc3db4c9ff97b8
Author: Tom Tromey <tromey@adacore.com>
Date:   Mon Mar 11 10:22:17 2019 -0600

    Remove redundant assignment from dwarf2_find_containing_comp_unit
    
    dwarf2_find_containing_comp_unit has two assignments to "this_cu" in
    quick succession, both of which are just:
    
      this_cu = dwarf2_per_objfile->all_comp_units[low];
    
    ... with no intervening assignments.
    
    This patch removes the second assignment.  I'm checking this in as
    obvious.  Tested on x86-64 Fedora 29.
    
    gdb/ChangeLog
    2019-03-11  Tom Tromey  <tromey@adacore.com>
    
    	* dwarf2read.c (dwarf2_find_containing_comp_unit): Remove
    	redundant assignment to "this_cu".

Diff:
---
 gdb/ChangeLog    | 5 +++++
 gdb/dwarf2read.c | 1 -
 2 files changed, 5 insertions(+), 1 deletion(-)

diff --git a/gdb/ChangeLog b/gdb/ChangeLog
index 63b8095..ee9fabe 100644
--- a/gdb/ChangeLog
+++ b/gdb/ChangeLog
@@ -1,3 +1,8 @@
+2019-03-11  Tom Tromey  <tromey@adacore.com>
+
+	* dwarf2read.c (dwarf2_find_containing_comp_unit): Remove
+	redundant assignment to "this_cu".
+
 2019-03-08  Simon Marchi  <simon.marchi@efficios.com>
 
 	* gdbtypes.c (rank_one_type): Remove unnecessary cases from switch.
diff --git a/gdb/dwarf2read.c b/gdb/dwarf2read.c
index 0c59dcd..7c07a10 100644
--- a/gdb/dwarf2read.c
+++ b/gdb/dwarf2read.c
@@ -25157,7 +25157,6 @@ dwarf2_find_containing_comp_unit (sect_offset sect_off,
     }
   else
     {
-      this_cu = dwarf2_per_objfile->all_comp_units[low];
       if (low == dwarf2_per_objfile->all_comp_units.size () - 1
 	  && sect_off >= this_cu->sect_off + this_cu->length)
 	error (_("invalid dwarf2 offset %s"), sect_offset_str (sect_off));