llvm-project

Commit Graph

Author	SHA1	Message	Date
Amara Emerson	854d10d10b	[AArch64][GlobalISel] Enable GlobalISel at -O0 by default Tests updated to explicitly use fast-isel at -O0 instead of implicitly. This change also allows an explicit -fast-isel option to override an implicitly enabled global-isel. Otherwise -fast-isel would have no effect at -O0. Differential Revision: https://reviews.llvm.org/D41362 llvm-svn: 321655	2018-01-02 16:30:47 +00:00
Akira Hatanaka	b74db09c97	[AArch64, fast-isel] Fall back to SelectionDAG to select tail calls. Certain functions such as objc_autoreleaseReturnValue have to be called as tail-calls even at -O0. Since normal fast-isel doesn't emit calls as tail calls, we have to fall back to SelectionDAG to select calls that are marked as tail. <rdar://problem/17991614> llvm-svn: 215600	2014-08-13 23:23:58 +00:00

Author

SHA1

Message

Date

Amara Emerson

854d10d10b

[AArch64][GlobalISel] Enable GlobalISel at -O0 by default

Tests updated to explicitly use fast-isel at -O0 instead of implicitly.

This change also allows an explicit -fast-isel option to override an
implicitly enabled global-isel. Otherwise -fast-isel would have no effect at -O0.

Differential Revision: https://reviews.llvm.org/D41362

llvm-svn: 321655

2018-01-02 16:30:47 +00:00

Akira Hatanaka

b74db09c97

[AArch64, fast-isel] Fall back to SelectionDAG to select tail calls.

Certain functions such as objc_autoreleaseReturnValue have to be called as
tail-calls even at -O0. Since normal fast-isel doesn't emit calls as tail calls,
we have to fall back to SelectionDAG to select calls that are marked as tail.

<rdar://problem/17991614>

llvm-svn: 215600

2014-08-13 23:23:58 +00:00

2 Commits