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| author | Nemanja Ivanovic <nemanja.i.ibm@gmail.com> | 2017-12-11 14:35:48 +0000 |
|---|---|---|
| committer | Nemanja Ivanovic <nemanja.i.ibm@gmail.com> | 2017-12-11 14:35:48 +0000 |
| commit | 6c0ae87241fcdd95aacfd89d70216fb3fb9aba07 (patch) | |
| tree | 1af8f627e653e74869d522c0df257809be372c76 /test/CodeGen/Hexagon | |
| parent | 3386088d3ed65b1d5a446bce6eab00d6dbebffc8 (diff) | |
[PowerPC] Sign-extend negative constant stores
Second part of https://reviews.llvm.org/D40348.
Revision r318436 has extended all constants feeding a store to 64 bits
to allow for CSE on the SDAG. However, negative constants were zero extended
which made the constant being loaded appear to be a positive value larger than
16 bits. This resulted in long sequences to materialize such constants
rather than simply a "load immediate". This patch just sign-extends those
updated constants so that they remain 16-bit signed immediates if they started
out that way.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@320368 91177308-0d34-0410-b5e6-96231b3b80d8
Diffstat (limited to 'test/CodeGen/Hexagon')
0 files changed, 0 insertions, 0 deletions