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| author | Roman Tereshin <rtereshin@apple.com> | 2018-05-24 00:24:15 +0000 |
|---|---|---|
| committer | Roman Tereshin <rtereshin@apple.com> | 2018-05-24 00:24:15 +0000 |
| commit | a4c410d50d789f0556eed7ba996fe77846dfb962 (patch) | |
| tree | b25e6ce783992ce5df95a7203dd563a714ca4771 /llvm/lib/ExecutionEngine | |
| parent | 6cef421b3464919d18a8bdc7326b6338d64409e2 (diff) | |
| download | bcm5719-llvm-a4c410d50d789f0556eed7ba996fe77846dfb962.tar.gz bcm5719-llvm-a4c410d50d789f0556eed7ba996fe77846dfb962.zip | |
[GlobalISel][InstructionSelect] Switching over root LLTs, perf patch 10
This patch continues a series of patches started by r332907 (reapplied
as r332917).
In this commit we introduce new matching opcode for the MatchTable:
GIM_SwitchType, similar to GIM_SwitchOpcode, and use it to switch over
LLTs of def operands of root instructions on the 2nd level of the
MatchTable within GIM_SwitchOpcode's cases.
This is expected to decrease time GlobalISel spends in its
InstructionSelect pass by about 6.5% for an -O0 build as measured on
sqlite3-amalgamation (http://sqlite.org/download.html) targeting
AArch64 (cross-compile on x86).
Reviewers: qcolombet, dsanders, bogner, aemerson, javed.absar
Reviewed By: qcolombet
Subscribers: rovka, llvm-commits, kristof.beyls
Differential Revision: https://reviews.llvm.org/D44700
llvm-svn: 333146
Diffstat (limited to 'llvm/lib/ExecutionEngine')
0 files changed, 0 insertions, 0 deletions
