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Current implementations of single precision and double precision floating point operations operate on bits of the integer type of same size. The code made use of magic masks which were listed as literal integer values. This is not possible in the case of long double type as the mantissa of quad-precision long double type used on non-x86 architectures is wider that the widest integer type for which we can list literal values. So, in this patch, to avoid using magic masks specified with literal values, we use packed bit-field struct types and let the compiler generate the masks. This new scheme allows us to implement long double flavors of the various floating point operations. To keep the size of the patch small, only the implementations of fabs and trunc have been switched to the new scheme. In following patches, all exisiting implementations will be switched to the new scheme. Reviewers: asteinhauser Differential Revision: https://reviews.llvm.org/D82036 |
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| AOR_v20.02 | ||
| benchmarks | ||
| cmake/modules | ||
| config | ||
| docs | ||
| fuzzing | ||
| include | ||
| lib | ||
| loader | ||
| spec | ||
| src | ||
| test | ||
| utils | ||
| CMakeLists.txt | ||
| LICENSE.txt | ||
| README.txt | ||
LLVM libc ========= This directory and its subdirectories contain source code for llvm-libc, a retargetable implementation of the C standard library. LLVM is open source software. You may freely distribute it under the terms of the license agreement found in LICENSE.txt.