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| author | Adrian Prantl <aprantl@apple.com> | 2016-04-28 15:37:48 +0000 |
|---|---|---|
| committer | Adrian Prantl <aprantl@apple.com> | 2016-04-28 15:37:48 +0000 |
| commit | f393d313ece93b7ab10bbbc0776bf10e4617cfda (patch) | |
| tree | b53c3ff4fe5d2dfcdb932aebc5369a1d50b97b44 /clang/lib/Frontend/CompilerInvocation.cpp | |
| parent | bcdce3fd85dfb3942c8996430e429824667a6ed1 (diff) | |
| download | bcm5719-llvm-f393d313ece93b7ab10bbbc0776bf10e4617cfda.tar.gz bcm5719-llvm-f393d313ece93b7ab10bbbc0776bf10e4617cfda.zip | |
Debug info: Support DWARF4 bitfields via DW_AT_data_bit_offset.
The DWARF2 specification of DW_AT_bit_offset was written from the perspective of
a big-endian machine with unclear semantics for other systems. DWARF4
deprecated DW_AT_bit_offset and introduced a new attribute DW_AT_data_bit_offset
that simply counts the number of bits from the beginning of the containing
entity regardless of endianness.
After this patch LLVM emits DW_AT_bit_offset for DWARF 2 or 3 and
DW_AT_data_bit_offset when DWARF 4 or later is requested.
llvm-svn: 267895
Diffstat (limited to 'clang/lib/Frontend/CompilerInvocation.cpp')
0 files changed, 0 insertions, 0 deletions
