Examples of the ~ 3500 DIEs that lost DW_AT_location attribute:

 <2><1c2d0>: Abbrev Number: 73 (DW_TAG_lexical_block)
    <1c2d1>   DW_AT_ranges      : 0x200 
    <1c2d5>   DW_AT_sibling     : <0x1c300>     
 <3><1c2d9>: Abbrev Number: 69 (DW_TAG_variable)
    <1c2da>   DW_AT_name        : __t   
    <1c2de>   DW_AT_decl_file   : 1     
    <1c2df>   DW_AT_decl_line   : 4549  
    <1c2e1>   DW_AT_type        : <0x1b753>     
    <1c2e5>   DW_AT_location    : 0x14fc        (location list)		<- Dropped with the patch

    00000200 080bdf29 080bdf38 
    00000200 080bdf97 080bdfcf 
    00000200 <End of list>

    000014fc 080bdf38 080bdf3e (DW_OP_breg3: 12; DW_OP_deref; DW_OP_plus_uconst: 16)
    000014fc 080bdf3e 080bdf53 (DW_OP_reg0)
    000014fc 080bdf8f 080bdf95 (DW_OP_reg0)
    000014fc <End of list>

 <6><138f043>: Abbrev Number: 38 (DW_TAG_lexical_block)
    <138f044>   DW_AT_ranges      : 0x3c0880    
 <7><138f048>: Abbrev Number: 46 (DW_TAG_variable)
    <138f049>   DW_AT_abstract_origin: <0x138e4ec>      
    <138f04d>   DW_AT_location    : 0xf60994    (location list)		<- Dropped with the patch
 <7><138f051>: Abbrev Number: 46 (DW_TAG_variable)
    <138f052>   DW_AT_abstract_origin: <0x138e4f6>      
    <138f056>   DW_AT_location    : 0xf609c1    (location list)		<- Dropped with the patch
 <7><138f05a>: Abbrev Number: 46 (DW_TAG_variable)
    <138f05b>   DW_AT_abstract_origin: <0x138e500>      
    <138f05f>   DW_AT_location    : 0xf60a00    (location list)		<- Dropped with the patch
 <7><138f063>: Abbrev Number: 46 (DW_TAG_variable)
    <138f064>   DW_AT_abstract_origin: <0x138e50a>      
    <138f068>   DW_AT_location    : 0xf60a13    (location list)		<- Dropped with the patch

    003c0880 08dfb422 08dfb433 
    003c0880 08dfb437 08dfb43f 
    003c0880 <End of list>

    00f60994 08dfb43f 08dfb454 (DW_OP_reg2)
    00f60994 08dfb454 08dfb4c1 (DW_OP_fbreg: -68)
    00f60994 08dfb516 08dfb52b (DW_OP_fbreg: -68)
    00f60994 <End of list>
    00f609c1 08dfb43f 08dfb454 (DW_OP_fbreg: 8; DW_OP_deref; DW_OP_breg2: 0; DW_OP_minus; DW_OP_stack_value)
    00f609c1 08dfb454 08dfb4c1 (DW_OP_fbreg: 8; DW_OP_deref; DW_OP_fbreg: -68; DW_OP_deref; DW_OP_minus; DW_OP_stack_value)
    00f609c1 08dfb516 08dfb52b (DW_OP_fbreg: 8; DW_OP_deref; DW_OP_fbreg: -68; DW_OP_deref; DW_OP_minus; DW_OP_stack_value)
    00f609c1 <End of list>
    00f60a00 08dfb44e 08dfb450 (DW_OP_reg0)
    00f60a00 <End of list>
    00f60a13 08dfb450 08dfb456 (DW_OP_reg0)
    00f60a13 <End of list>

 <2><61e21b>: Abbrev Number: 70 (DW_TAG_inlined_subroutine)
    <61e21c>   DW_AT_abstract_origin: <0x61d6cb>        
    <61e220>   DW_AT_entry_pc    : 0x84cd660    
    <61e224>   DW_AT_ranges      : 0x15bd68     
    <61e228>   DW_AT_call_file   : 1    
    <61e229>   DW_AT_call_line   : 181  
    <61e22a>   DW_AT_sibling     : <0x61e263>   
 <3><61e22e>: Abbrev Number: 71 (DW_TAG_formal_parameter)
    <61e22f>   DW_AT_abstract_origin: <0x61d6e1>        
    <61e233>   DW_AT_location    : 0x4c79b8     (location list)		<- Dropped with the patch
 <3><61e237>: Abbrev Number: 71 (DW_TAG_formal_parameter)
    <61e238>   DW_AT_abstract_origin: <0x61d6d8>        
    <61e23c>   DW_AT_location    : 0x4c79c0     (location list)		<- Dropped with the patch

    0015bd68 084cd660 084cd666 
    0015bd68 084cd66c 084cd66e 
    0015bd68 084cd674 084cd678 
    0015bd68 <End of list>

    004c79b8 <End of list>
    004c79c0 <End of list>

 <3><46cb4>: Abbrev Number: 82 (DW_TAG_lexical_block)
    <46cb5>   DW_AT_ranges      : 0x147f8       
    <46cb9>   DW_AT_sibling     : <0x46cf9>     
 <4><46cbd>: Abbrev Number: 79 (DW_TAG_variable)
    <46cbe>   DW_AT_name        : lt    
    <46cc1>   DW_AT_decl_file   : 1     
    <46cc2>   DW_AT_decl_line   : 8754  
    <46cc4>   DW_AT_type        : <0x2c2de>     
    <46cc8>   DW_AT_location    : 0x46f1e       (location list)		<- Dropped with the patch

    000147f8 080fc588 080fc595 
    000147f8 080fd6d6 080fd716 
    000147f8 <End of list>

    00046f1e 080fc595 080fc5ad (DW_OP_reg0)
    00046f1e 080fdb16 080fdb45 (DW_OP_breg5: 92)
    00046f1e 080ff076 080ff09d (DW_OP_breg5: 92)
    00046f1e 080ff09e 080ff0cd (DW_OP_reg0)
    00046f1e <End of list>

 <2><7f89e7>: Abbrev Number: 68 (DW_TAG_lexical_block)
    <7f89e8>   DW_AT_low_pc      : 0x85ae0cf    
    <7f89ec>   DW_AT_high_pc     : 0x85ae107    
 <3><7f89f0>: Abbrev Number: 79 (DW_TAG_variable)
    <7f89f1>   DW_AT_name        : (indirect string, offset: 0x71bba): spec_val 
    <7f89f5>   DW_AT_decl_file   : 2    
    <7f89f6>   DW_AT_decl_line   : 2281 
    <7f89f8>   DW_AT_type        : <0x7ecd76>   
    <7f89fc>   DW_AT_location    : 0x5c8b55     (location list)
 <3><7f8a00>: Abbrev Number: 79 (DW_TAG_variable)
    <7f8a01>   DW_AT_name        : (indirect string, offset: 0xd1b2f): prob_val 
    <7f8a05>   DW_AT_decl_file   : 2    
    <7f8a06>   DW_AT_decl_line   : 2281 
    <7f8a08>   DW_AT_type        : <0x7ecd76>   
    <7f8a0c>   DW_AT_location    : 0x5c8b78     (location list)		<- Dropped with the patch

    005c8b55 085ae0fd 085ae0ff (DW_OP_breg0: 0; DW_OP_breg2: 0; DW_OP_minus; DW_OP_stack_value)
    005c8b55 085ae0ff 085ae104 (DW_OP_reg0)
    005c8b55 <End of list>
    005c8b78 <End of list>

Examples of shorter location lists:

 <2><9b7f>: Abbrev Number: 56 (DW_TAG_lexical_block)
    <9b80>   DW_AT_ranges      : 0x38   
    <9b84>   DW_AT_sibling     : <0x9b98>       
 <3><9b88>: Abbrev Number: 53 (DW_TAG_variable)
    <9b89>   DW_AT_name        : __t    
    <9b8d>   DW_AT_decl_file   : 1      
    <9b8e>   DW_AT_decl_line   : 140    
    <9b8f>   DW_AT_type        : <0x9b34>       
    <9b93>   DW_AT_location    : 0x13e  (location list)

    00000038 080bcd38 080bcd48 
    00000038 080bcdf0 080bce18 
    00000038 <End of list>

    0000013e 080bcd38 080bcdd4 (DW_OP_fbreg: 0)
    0000013e 080bcdf0 080bce48 (DW_OP_fbreg: 0)
    0000013e <End of list>

change:
-    XXXXXXXX 080bcd38 080bcdd4 (DW_OP_fbreg: 0)
-    XXXXXXXX 080bcdf0 080bce48 (DW_OP_fbreg: 0)
+    XXXXXXXX 080bcd38 080bce48 (DW_OP_fbreg: 0)
     XXXXXXXX <End of list>

 <2><1c9dd>: Abbrev Number: 73 (DW_TAG_lexical_block)
    <1c9de>   DW_AT_ranges      : 0x5a8 
    <1c9e2>   DW_AT_sibling     : <0x1c9f7>     
 <3><1c9e6>: Abbrev Number: 69 (DW_TAG_variable)
    <1c9e7>   DW_AT_name        : __t   
    <1c9eb>   DW_AT_decl_file   : 1     
    <1c9ec>   DW_AT_decl_line   : 357   
    <1c9ee>   DW_AT_type        : <0x1b753>     
    <1c9f2>   DW_AT_location    : 0x2173        (location list)

    000005a8 080be8cb 080be8cf 
    000005a8 080be8d3 080be8df 
    000005a8 080bed69 080bed99 
    000005a8 <End of list>

    00002173 080be8d3 080be8ee (DW_OP_reg5)
    00002173 080bea3a 080bea4a (DW_OP_reg5)
    00002173 080bed69 080bed99 (DW_OP_reg5)
    00002173 <End of list>

change:
-    XXXXXXXX 080be8d3 080be8ee (DW_OP_reg5)
-    XXXXXXXX 080bea3a 080bea4a (DW_OP_reg5)
-    XXXXXXXX 080bed69 080bed99 (DW_OP_reg5)
+    XXXXXXXX 080be8d3 080bee8d (DW_OP_reg5)
     XXXXXXXX <End of list>

 <3><1d653>: Abbrev Number: 73 (DW_TAG_lexical_block)
    <1d654>   DW_AT_ranges      : 0xbc8 
    <1d658>   DW_AT_sibling     : <0x1d683>     
 <4><1d65c>: Abbrev Number: 69 (DW_TAG_variable)
    <1d65d>   DW_AT_name        : __t   
    <1d661>   DW_AT_decl_file   : 1     
    <1d662>   DW_AT_decl_line   : 4702  
    <1d664>   DW_AT_type        : <0x1b753>     
    <1d668>   DW_AT_location    : 0x3cb2        (location list)

    00000bc8 080c0143 080c0161 
    00000bc8 080c062e 080c0656 
    00000bc8 080c07ef 080c081f 
    00000bc8 <End of list>

    00003cb2 080c0157 080c0164 (DW_OP_reg0)
    00003cb2 080c01b7 080c020c (DW_OP_breg3: 24)
    00003cb2 080c02d8 080c02e2 (DW_OP_breg3: 24)
    00003cb2 080c04e7 080c050a (DW_OP_breg3: 24)
    00003cb2 080c050b 080c053a (DW_OP_breg3: 24)
    00003cb2 080c053b 080c0562 (DW_OP_breg3: 24)
    00003cb2 080c059b 080c05ca (DW_OP_breg3: 24)
    00003cb2 080c07ef 080c081f (DW_OP_reg0)
    00003cb2 <End of list>

change:
-    XXXXXXXX 080c0157 080c0164 (DW_OP_reg0)
-    XXXXXXXX 080c01b7 080c020c (DW_OP_breg3: 24)
-    XXXXXXXX 080c02d8 080c02e2 (DW_OP_breg3: 24)
-    XXXXXXXX 080c04e7 080c050a (DW_OP_breg3: 24)
-    XXXXXXXX 080c050b 080c053a (DW_OP_breg3: 24)
-    XXXXXXXX 080c053b 080c0562 (DW_OP_breg3: 24)
-    XXXXXXXX 080c059b 080c05ca (DW_OP_breg3: 24)
+    XXXXXXXX 080c0157 080c05ca (DW_OP_reg0)
     XXXXXXXX 080c07ef 080c081f (DW_OP_reg0)
     XXXXXXXX <End of list>