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From: "pinskia at gcc dot gnu.org" <gcc-bugzilla@gcc.gnu.org>
To: gcc-bugs@gcc.gnu.org
Subject: [Bug debug/112582] Inconsistent Variable Values: Discrepancy between
 Source-Level and Instruction-Level Debugging
Date: Fri, 17 Nov 2023 06:45:13 +0000
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https://gcc.gnu.org/bugzilla/show_bug.cgi?id=3D112582

Andrew Pinski <pinskia at gcc dot gnu.org> changed:

           What    |Removed                     |Added
----------------------------------------------------------------------------
         Resolution|---                         |INVALID
             Status|UNCONFIRMED                 |RESOLVED

--- Comment #1 from Andrew Pinski <pinskia at gcc dot gnu.org> ---
        .cfi_def_cfa_offset 32
        .loc 1 27 5 view .LVU27
        movl    $-5, %eax
        .loc 1 28 5 view .LVU28
        movl    $-10, %edx
        .loc 1 29 3 view .LVU29 // point where after `si`'s is located
        leaq    14(%rsp), %rsi
        leaq    12(%rsp), %rdi
        .loc 1 27 5 view .LVU30
        movw    %ax, 12(%rsp)
        .loc 1 28 3 is_stmt 1 view .LVU31
        .loc 1 28 5 is_stmt 0 view .LVU32
        movw    %dx, 14(%rsp)
        .loc 1 29 3 is_stmt 1 view .LVU33 // point where step is=20
        call    foo
...
       .ascii "x\0"    # DW_AT_name
                        # DW_AT_decl_file (1, /app/example.c)
                        # DW_AT_decl_line (0x1a)
        .byte   0x16  # DW_AT_decl_column
        .long   0x9e  # DW_AT_type
        .uleb128 0x2    # DW_AT_location
        .byte   0x91  # DW_OP_fbreg
        .sleb128 -20
        .uleb128 0x3    # (DIE (0x78) DW_TAG_variable)
        .ascii "y\0"    # DW_AT_name
                        # DW_AT_decl_file (1, /app/example.c)
                        # DW_AT_decl_line (0x1a)
        .byte   0x19  # DW_AT_decl_column
        .long   0x9e  # DW_AT_type
        .uleb128 0x2    # DW_AT_location
        .byte   0x91  # DW_OP_fbreg
        .sleb128 -18

Not a bug.=