Files
clang-p2996/llvm/test/CodeGen/AMDGPU
Amaury Sechet 893a6b89ff [DAGCOmbine] Ensure that (brcond (setcc ...)) is handled in a canonical manner.
Summary:
There are transformation that change setcc into other constructs, and transform that try to reconstruct a setcc from the brcond condition. Depending on what order these transform are done, the end result differs.

Most of the time, it is preferable to get a setcc as a brcond argument (and this is why brcond try to recreate the setcc in the first place) so we ensure this is done every time by also doing it at the setcc level when the only user is a brcond.

Reviewers: spatel, hfinkel, niravd, craig.topper

Subscribers: nhaehnle, llvm-commits

Differential Revision: https://reviews.llvm.org/D41235

llvm-svn: 325892
2018-02-23 11:50:42 +00:00
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+==============================================================================+
| How to organize the lit tests                                                |
+==============================================================================+

- If you write a test for matching a single DAG opcode or intrinsic, it should
  go in a file called {opcode_name,intrinsic_name}.ll (e.g. fadd.ll)

- If you write a test that matches several DAG opcodes and checks for a single
  ISA instruction, then that test should go in a file called {ISA_name}.ll (e.g.
  bfi_int.ll

- For all other tests, use your best judgement for organizing tests and naming
  the files.

+==============================================================================+
| Naming conventions                                                           |
+==============================================================================+

- Use dash '-' and not underscore '_' to separate words in file names, unless
  the file is named after a DAG opcode or ISA instruction that has an
  underscore '_' in its name.