libvpx: Pull from upstream

source/libvpx/build/make/ads2gas.pl

 #!/usr/bin/perl
 ##
 ##  Copyright (c) 2010 The WebM project authors. All Rights Reserved.
 ##
 ##  Use of this source code is governed by a BSD-style license
 ##  that can be found in the LICENSE file in the root of the source
 ##  tree. An additional intellectual property rights grant can be found
 ##  in the file PATENTS.  All contributing project authors may
 ##  be found in the AUTHORS file in the root of the source tree.
 ##
@@ skipping 43 matching lines @@
     # Convert :NOT: to ~
     s/:NOT:/ ~ /g;
 
     # Convert :SHL: to <<
     s/:SHL:/ << /g;
 
     # Convert :SHR: to >>
     s/:SHR:/ >> /g;
 
     # Convert ELSE to .else
-    s/ELSE/.else/g;
+    s/\bELSE\b/.else/g;
 
     # Convert ENDIF to .endif
-    s/ENDIF/.endif/g;
+    s/\bENDIF\b/.endif/g;
 
     # Convert ELSEIF to .elseif
-    s/ELSEIF/.elseif/g;
+    s/\bELSEIF\b/.elseif/g;
 
     # Convert LTORG to .ltorg
-    s/LTORG/.ltorg/g;
+    s/\bLTORG\b/.ltorg/g;
 
     # Convert endfunc to nothing.
-    s/endfunc//ig;
+    s/\bendfunc\b//ig;
 
     # Convert FUNCTION to nothing.
-    s/FUNCTION//g;
-    s/function//g;
+    s/\bFUNCTION\b//g;
+    s/\bfunction\b//g;
 
-    s/ENTRY//g;
-    s/MSARMASM/0/g;
+    s/\bENTRY\b//g;
+    s/\bMSARMASM\b/0/g;
     s/^\s+end\s+$//g;
 
     # Convert IF :DEF:to .if
     # gcc doesn't have the ability to do a conditional
     # if defined variable that is set by IF :DEF: on
     # armasm, so convert it to a normal .if and then
     # make sure to define a value elesewhere
     if (s/\bIF :DEF:\b/.if /g)
     {
         s/=/==/g;
@@ skipping 53 matching lines @@
 #   s/^(\w+)/$1:/ if !/EQU/;
     # put the colon at the end of the line in the macro
     s/^([a-zA-Z_0-9\$]+)/$1:/ if !/EQU/;
 
     # ALIGN directive
     s/\bALIGN\b/.balign/g;
 
     # ARM code
     s/\sARM/.arm/g;
 
+    # push/pop
+    s/(push\s+)(r\d+)/stmdb sp\!, \{$2\}/g;
+    s/(pop\s+)(r\d+)/ldmia sp\!, \{$2\}/g;
+
     # NEON code
     s/(vld1.\d+\s+)(q\d+)/$1\{$2\}/g;
     s/(vtbl.\d+\s+[^,]+),([^,]+)/$1,\{$2\}/g;
 
     # eabi_attributes numerical equivalents can be found in the
     # "ARM IHI 0045C" document.
 
     # REQUIRE8 Stack is required to be 8-byte aligned
     s/\sREQUIRE8/.eabi_attribute 24, 1 \@Tag_ABI_align_needed/g;
 
@@ skipping 15 matching lines @@
         my $proc;
         s/\bENDP\b/@ $&/;
         $proc = pop(@proc_stack);
         $_ = "\t.size $proc, .-$proc".$_ if ($proc);
     }
 
     # EQU directive
     s/(\S+\s+)EQU(\s+\S+)/.equ $1, $2/;
 
     # Begin macro definition
-    if (/MACRO/) {
+    if (/\bMACRO\b/) {
         $_ = <STDIN>;
         s/^/.macro/;
         s/\$//g;                # remove formal param reference
         s/;/@/g;                # change comment characters
     }
 
     # For macros, use \ to reference formal params
     s/\$/\\/g;                  # End macro definition
-    s/MEND/.endm/;              # No need to tell it where to stop assembling
+    s/\bMEND\b/.endm/;              # No need to tell it where to stop assembling
     next if /^\s*END\s*$/;
     print;
     print "$comment_sub$comment\n" if defined $comment;
 }
 
 # Mark that this object doesn't need an executable stack.
 printf ("\t.section\t.note.GNU-stack,\"\",\%\%progbits\n");