diff options
| author | Jonas Paulsson <paulsson@linux.vnet.ibm.com> | 2018-11-28 08:08:05 +0000 |
|---|---|---|
| committer | Jonas Paulsson <paulsson@linux.vnet.ibm.com> | 2018-11-28 08:08:05 +0000 |
| commit | 011a503f25cdbfff68bc28c8ac11f7df346674ef (patch) | |
| tree | 8268f1b725707d14a70fe6ea4b402a6d76a96f21 /llvm/lib/Support/TargetParser.cpp | |
| parent | 5da8e432b9f1824e9be807e4e606f02351a5d8c3 (diff) | |
| download | bcm5719-llvm-011a503f25cdbfff68bc28c8ac11f7df346674ef.tar.gz bcm5719-llvm-011a503f25cdbfff68bc28c8ac11f7df346674ef.zip | |
[SystemZ::TTI] Improved cost values for comparison against memory.
Single instructions exist for i8 and i16 comparisons of memory against a
small immediate.
This patch makes sure that if the load in these cases has a single user (the
ICmp), it gets a 0 cost (folded), and also that the ICmp gets a cost of 1.
Review: Ulrich Weigand
https://reviews.llvm.org/D54897
llvm-svn: 347733
Diffstat (limited to 'llvm/lib/Support/TargetParser.cpp')
0 files changed, 0 insertions, 0 deletions
