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Symbol aliases are supported by all platforms that compiler-rt builtins
target, and we can use these instead of function redirects to avoid the
extra indirection.
This is part of the cleanup proposed in "[RFC] compiler-rt builtins
cleanup and refactoring".
Differential Revision: https://reviews.llvm.org/D60931
git-svn-id: https://llvm.org/svn/llvm-project/compiler-rt/trunk@359413 91177308-0d34-0410-b5e6-96231b3b80d8
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Use the uniform single line C++/99 style for code comments.
This is part of the cleanup proposed in "[RFC] compiler-rt builtins
cleanup and refactoring".
Differential Revision: https://reviews.llvm.org/D60352
git-svn-id: https://llvm.org/svn/llvm-project/compiler-rt/trunk@359411 91177308-0d34-0410-b5e6-96231b3b80d8
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Update formatting to use the LLVM style.
This is part of the cleanup proposed in "[RFC] compiler-rt builtins
cleanup and refactoring".
Differential Revision: https://reviews.llvm.org/D60351
git-svn-id: https://llvm.org/svn/llvm-project/compiler-rt/trunk@359410 91177308-0d34-0410-b5e6-96231b3b80d8
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to reflect the new license. These used slightly different spellings that
defeated my regular expressions.
We understand that people may be surprised that we're moving the header
entirely to discuss the new license. We checked this carefully with the
Foundation's lawyer and we believe this is the correct approach.
Essentially, all code in the project is now made available by the LLVM
project under our new license, so you will see that the license headers
include that license only. Some of our contributors have contributed
code under our old license, and accordingly, we have retained a copy of
our old license notice in the top-level files in each project and
repository.
git-svn-id: https://llvm.org/svn/llvm-project/compiler-rt/trunk@351648 91177308-0d34-0410-b5e6-96231b3b80d8
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r303188 removed all the uses of aliases for EABI functions from
compiler-rt, because some of them had mismatched calling conventions.
Obviously, we can't use aliases for functions which don't have the same
calling convention, but that's only an issue for floating-point
functions with the hardfloat ABI. In other cases, the stubs increase
size and reduce performance for no benefit.
This patch adds back the aliases, with appropriate checks to make sure
they're only used in cases where the calling convention matches.
git-svn-id: https://llvm.org/svn/llvm-project/compiler-rt/trunk@314851 91177308-0d34-0410-b5e6-96231b3b80d8
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These actually may change calling conventions. We cannot simply provide
function aliases as the aliased function may have a different calling
convention. Provide a forwarding function instead to permit the
compiler to synthesize the calling convention adjustment thunk.
Remove the `ARM_EABI_FNALIAS` macro as that is not safe to use.
Resolves PR33030!
git-svn-id: https://llvm.org/svn/llvm-project/compiler-rt/trunk@303188 91177308-0d34-0410-b5e6-96231b3b80d8
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The ARM RTABI defines these functions as __aeabi_h2f, __aeabi_f2h and
__aeabi_d2h, so we need aliases for them.
git-svn-id: https://llvm.org/svn/llvm-project/compiler-rt/trunk@249559 91177308-0d34-0410-b5e6-96231b3b80d8
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This allows us to build the builtins using MSVC. NFC.
Patch by Tee Hao Wei!
git-svn-id: https://llvm.org/svn/llvm-project/compiler-rt/trunk@249375 91177308-0d34-0410-b5e6-96231b3b80d8
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Follow-up to r237161; seems like we can't use aliases, but we
can do better than duplicating the bodies, especially when that
body, after inlining, isn't as small as it looks.
Better approaches welcome. Perhaps the best thing is just to have
an #ifndef __APPLE__ over the GNUEABI names, since they're not used
there.
git-svn-id: https://llvm.org/svn/llvm-project/compiler-rt/trunk@237323 91177308-0d34-0410-b5e6-96231b3b80d8
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Mostly uninteresting, except:
- in __extendXfYf2, when checking if the number is normal, the old
code relied on the unsignedness of src_rep_t, which is a problem
when sizeof(src_rep_t) < sizeof(int): the result gets promoted to
int, the signedness of which breaks the comparison.
I added an explicit cast; it shouldn't affect other types.
- we can't pass __fp16, so src_t and src_rep_t are the same.
- the gnu_*_ieee symbols are simply duplicated definitions, as aliases
are problematic on mach-o (where only weak aliases are supported;
that's not what we want).
Differential Revision: http://reviews.llvm.org/D9693
git-svn-id: https://llvm.org/svn/llvm-project/compiler-rt/trunk@237161 91177308-0d34-0410-b5e6-96231b3b80d8
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