This patch fixes builtins' CMakeLists.txt and their VFP tests to check
the standard macro defined in the ACLE for VFP support. It also enables
the tests to be built and run for single-precision-only targets while
builtins were built with double-precision support.
Differential revision: https://reviews.llvm.org/D92497
Summary:
If a platform removes some builtin implementations (e.g. via the
Darwin-excludes mechanism) then this can lead to test failures because
the test expects an implementation to be available.
To solve this lit features are added for each configuration based
on which sources are included in the builtin library. The features
are of the form `librt_has_<name>` where `<name>` is the name of the
source file with the file extension removed. This handles C and
assembly sources.
With the lit features in place it is possible to make certain tests
require them.
Example:
```
REQUIRES: librt_has_comparedf2
```
All top-level tests in `test/builtins/Unit` (i.e. not under
`arm`, `ppc`, and `riscv`) have been annotated with the appropriate
`REQUIRES: librt_has_*` statement.
rdar://problem/55520987
Reviewers: beanz, steven_wu, arphaman, dexonsmith, phosek, thakis
Subscribers: mgorny, #sanitizers, llvm-commits
Tags: #llvm, #sanitizers
Differential Revision: https://reviews.llvm.org/D68064
llvm-svn: 375150
Zhuojia Shen