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| author | George Rimar <grimar@accesssoftek.com> | 2017-05-15 11:45:28 +0000 |
|---|---|---|
| committer | George Rimar <grimar@accesssoftek.com> | 2017-05-15 11:45:28 +0000 |
| commit | 958b01aa691e031c674c974bf6aa5af3dc9d5be2 (patch) | |
| tree | 8d3c3aa845165e7de45840dd25bcc92f3ac03fa0 /llvm/test/CodeGen/ARM/hints.ll | |
| parent | c5490e5a295bff69e24845d540d7fe8622a72a38 (diff) | |
| download | bcm5719-llvm-958b01aa691e031c674c974bf6aa5af3dc9d5be2.tar.gz bcm5719-llvm-958b01aa691e031c674c974bf6aa5af3dc9d5be2.zip | |
[DWARF] - Speedup handling of relocations in DWARFContextInMemory.
I am working on a speedup of building .gdb_index in LLD and
noticed that relocations that are proccessed in DWARFContextInMemory often uses
the same symbol in a row. This patch introduces caching to reduce the relocations
proccessing time.
For benchmark,
I took debug LLC binary objects configured with -ggnu-pubnames and linked it using LLD.
Link time without --gdb-index is about 4,45s.
Link time with --gdb-index: a) Without patch: 19,16s b) With patch: 15,52s
That means time spent on --gdb-index in this configuration is
19,16s - 4,45s = 14,71s (without patch) vs 15,52s - 4,45s = 11,07s (with patch).
Differential revision: https://reviews.llvm.org/D31136
llvm-svn: 303051
Diffstat (limited to 'llvm/test/CodeGen/ARM/hints.ll')
0 files changed, 0 insertions, 0 deletions
