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| author | Jay Foad <jay.foad@amd.com> | 2023-08-02 13:03:31 +0100 |
|---|---|---|
| committer | Jay Foad <jay.foad@amd.com> | 2023-08-07 15:41:40 +0100 |
| commit | 68a0a3737163d5ee4cb5e8bb10128dc589e40d9a (patch) | |
| tree | 115d1c3268873b3e535fdf49ca88fc0472adee9a /llvm/lib/FileCheck | |
| parent | 8aeb84c1b63f4c3bdc43061514dae015471a24c6 (diff) | |
| download | llvm-68a0a3737163d5ee4cb5e8bb10128dc589e40d9a.zip llvm-68a0a3737163d5ee4cb5e8bb10128dc589e40d9a.tar.gz llvm-68a0a3737163d5ee4cb5e8bb10128dc589e40d9a.tar.bz2 | |
[AggressiveAntiDepBreaker] Tweak the fix for renaming a subregister of a live register
This patch tweaks the fix in D20627 "Do not rename registers that do not
start an independent live range" to only consider Data dependencies, not
Output or Anti dependencies. An Output or Anti dependency to a superreg
does not imply that that superreg is live at the current instruction.
This enables breaking anti-dependencies in a few more cases as shown by
the lit test updates.
Differential Revision: https://reviews.llvm.org/D156879
Diffstat (limited to 'llvm/lib/FileCheck')
0 files changed, 0 insertions, 0 deletions