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| author | Hiroshi Inoue <inouehrs@jp.ibm.com> | 2017-10-18 10:31:19 +0000 |
|---|---|---|
| committer | Hiroshi Inoue <inouehrs@jp.ibm.com> | 2017-10-18 10:31:19 +0000 |
| commit | 5388e66d3ab9985a80968fc71beb40cde170c44f (patch) | |
| tree | 9afc639f330c34248016acb642f35e7f734dd25d /llvm/unittests/Support/MemoryTest.cpp | |
| parent | 74c047eabb17b75cac6d6e9537b8e6e51e750880 (diff) | |
| download | bcm5719-llvm-5388e66d3ab9985a80968fc71beb40cde170c44f.tar.gz bcm5719-llvm-5388e66d3ab9985a80968fc71beb40cde170c44f.zip | |
[PowerPC] Use helper functions to check sign-/zero-extended value
Helper functions to identify sign- and zero-extending machine instruction is introduced in rL315888.
This patch makes PPCInstrInfo::optimizeCompareInstr use the helper functions. It simplifies the code and also makes possible more optimizations since the helper can do more analysis than the original check code; I observed about 5000 more compare instructions are eliminated while building LLVM.
Also, this patch fixes a bug in helpers on ANDIo instruction handling due to the order of checks. This bug causes a failure in an existing test case for optimizeCompareInstr.
Differential Revision: https://reviews.llvm.org/D38988
llvm-svn: 316071
Diffstat (limited to 'llvm/unittests/Support/MemoryTest.cpp')
0 files changed, 0 insertions, 0 deletions
