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The Version was used only to determine the size of an operand of DW_OP_call_ref. The size was 4 for all versions apart from 2, but the DW_OP_call_ref operation was introduced only in DWARF3. Thus, the code may be simplified and using of Version may be eliminated. Differential Revision: https://reviews.llvm.org/D73264
43 lines
1.7 KiB
ArmAsm
43 lines
1.7 KiB
ArmAsm
# RUN: llvm-mc -triple x86_64-pc-linux %s -filetype=obj | \
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# RUN: llvm-dwarfdump - | \
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# RUN: FileCheck %s
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# This checks that the operand of DW_OP_call_ref is always parsed corresponding
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# to the DWARF format of CU. Our code used to have an exception for verson == 2,
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# where it treated the operand like it had the size of address, but since
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# DW_OP_call_ref was introduced only in DWARF3, the code could be simplified.
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# CHECK: DW_TAG_variable
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# CHECK-NEXT: DW_AT_location (DW_OP_call_ref 0x11223344)
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.section .debug_abbrev,"",@progbits
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.byte 1 # Abbreviation Code
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.byte 17 # DW_TAG_compile_unit
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.byte 1 # DW_CHILDREN_yes
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.byte 0 # EOM(1)
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.byte 0 # EOM(2)
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.byte 5 # Abbreviation Code
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.byte 52 # DW_TAG_variable
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.byte 0 # DW_CHILDREN_no
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.byte 2 # DW_AT_location
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.byte 10 # DW_FORM_block1
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.byte 0 # EOM(1)
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.byte 0 # EOM(2)
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.byte 0 # EOM(3)
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.section .debug_info,"",@progbits
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.long .Lcu_end-.Lcu_start # Length of Unit
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.Lcu_start:
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.short 2 # DWARF version number
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.long .debug_abbrev # Offset Into Abbrev. Section
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.byte 8 # Address Size (in bytes)
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.byte 1 # Abbrev [1] DW_TAG_compile_unit
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.byte 5 # Abbrev [5] DW_TAG_variable
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.byte .Lloc_end-.Lloc_begin # DW_AT_location
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.Lloc_begin:
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.byte 154 # DW_OP_call_ref
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.long 0x11223344 # Offset
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.Lloc_end:
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.byte 0 # End Of Children Mark
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.Lcu_end:
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