The X86 clang/test/CodeGen/*builtins.c tests define the mm_malloc.h include
guard as a hack for avoiding its inclusion (mm_malloc.h requires a hosted
environment since it expects stdlib.h to be available - which is not the case
in these internal clang codegen tests).
This patch removes this hack and instead passes -ffreestanding to clang cc1.
Differential Revision: https://reviews.llvm.org/D24825
git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@282581 91177308-0d34-0410-b5e6-96231b3b80d8
The 3DNOW/PRFCHW cpu targets define both the PREFETCHW (set cache line modified) and PREFETCH (set cache line exclusive) instructions but only the _m_prefetchw (PREFETCHW) intrinsic is included in the header. This patch adds the missing _m_prefetch intrinsic.
I'm basing this off AMD documentation - the intel docs on the support for PREFETCHW isn't clear whether Silvermont/Broadwell properly support PREFETCH but given that the intrinsic implementation is a default __builtin_prefetch call, it is safe whatever.
Fix for PR23648
Differential Revision: http://reviews.llvm.org/D11338
git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@243305 91177308-0d34-0410-b5e6-96231b3b80d8
- Add head 'prfchwintrin.h' to define '_m_prefetchw' which is mapped to
LLVM/clang prefetch builtin
- Add option '-mprfchw' to enable PRFCHW feature and pre-define '__PRFCHW__'
macro
git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@178041 91177308-0d34-0410-b5e6-96231b3b80d8
Elad Cohen