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| author | Geoff Berry <gberry@codeaurora.org> | 2018-05-14 17:31:18 +0000 |
|---|---|---|
| committer | Geoff Berry <gberry@codeaurora.org> | 2018-05-14 17:31:18 +0000 |
| commit | 64a2ea41eaca32a6ba66db6b699ca33b2eee095b (patch) | |
| tree | f2ea82ffd78bf8ded706e71f90883b1b255eaa0e /clang/lib/Basic | |
| parent | 4135de2e93e19879492cd8a79a0c5371e1979cd6 (diff) | |
| download | bcm5719-llvm-64a2ea41eaca32a6ba66db6b699ca33b2eee095b.tar.gz bcm5719-llvm-64a2ea41eaca32a6ba66db6b699ca33b2eee095b.zip | |
[BranchFolding] Allow hoisting to block with a single conditional branch.
Summary:
The BranchFolding pass is currently missing opportunities to hoist
common code if the hoisted-to block contains a single conditional branch
that has register uses. This occurs somewhat frequently on AArch64 with
CBZ/TBZ opcodes.
This change also eliminates some code differences when debug info is
present since the presence of e.g. DBG_VALUE instructions in the
hoisted-to block can enable hoisting that wouldn't have occurred without
them.
Reviewers: MatzeB, rnk, kparzysz, twoh, aprantl, javed.absar
Subscribers: kristof.beyls, JDevlieghere, mcrosier, llvm-commits
Differential Revision: https://reviews.llvm.org/D46324
llvm-svn: 332265
Diffstat (limited to 'clang/lib/Basic')
0 files changed, 0 insertions, 0 deletions
