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(parent: e03a56d) | patch
[SystemZ] Use CLC and IPM to implement memcmp
authorRichard Sandiford <rsandifo@linux.vnet.ibm.com>
Mon, 12 Aug 2013 10:28:10 +0000 (10:28 +0000)
committerRichard Sandiford <rsandifo@linux.vnet.ibm.com>
Mon, 12 Aug 2013 10:28:10 +0000 (10:28 +0000)
commitac168b8bc8773a083a10902f64e4ae57a925aee4
treef01bc6788d39669344e52a5304fbe7859ebc8702tree | snapshot
parente03a56d62fc623e2f72d623b816f91b293d5904bcommit | diff
[SystemZ] Use CLC and IPM to implement memcmp

For now this is restricted to fixed-length comparisons with a length
in the range [1, 256], as for memcpy() and MVC.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@188163 91177308-0d34-0410-b5e6-96231b3b80d8
12 files changed:
include/llvm/Target/TargetSelectionDAGInfo.h diff | blob | history
lib/CodeGen/SelectionDAG/SelectionDAGBuilder.cpp diff | blob | history
lib/Target/SystemZ/README.txt diff | blob | history
lib/Target/SystemZ/SystemZISelLowering.cpp diff | blob | history
lib/Target/SystemZ/SystemZISelLowering.h diff | blob | history
lib/Target/SystemZ/SystemZInstrInfo.cpp diff | blob | history
lib/Target/SystemZ/SystemZInstrInfo.h diff | blob | history
lib/Target/SystemZ/SystemZInstrInfo.td diff | blob | history
lib/Target/SystemZ/SystemZOperators.td diff | blob | history
lib/Target/SystemZ/SystemZSelectionDAGInfo.cpp diff | blob | history
lib/Target/SystemZ/SystemZSelectionDAGInfo.h diff | blob | history
test/CodeGen/SystemZ/memcmp-01.ll [new file with mode: 0644] blob
C/C++ LLVM-based compilers that forbids OOTA behaviors