Displaying 2 results from an estimated 2 matches for "disable_call_synthesi".
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disable_call_synthesis
2019 Apr 30
3
[RFC][clang/llvm] Allow efficient implementation of libc's memory functions in C/C++
Thx for the feedback David.
So we're heading toward a broader
> __attribute__((disable_call_synthesis))
David what do you think about the additional version that restrict the
effect to a few named functions?
> e.g. __attribute__((disable_call_synthesis("memset", "memcpy", "sqrt")))
A warning should be issued if the arguments are not part of
RuntimeLibcalls.def....
2019 Apr 26
2
[RFC][clang/llvm] Allow efficient implementation of libc's memory functions in C/C++
...hes: an *attribute to prevent the compiler from
synthesizing calls* or a *set of builtins* to communicate the intent more
precisely to the compiler.
1. A function/module attribute to disable synthesis of calls
1.1 A specific attribute to disable the synthesis of a single call
__attribute__((disable_call_synthesis("memcpy")))
Question: Is it possible to specify the attribute several times on a
function to disable many calls?
1.2 A specific attribute to disable synthesis of all libc calls
__attribute__((disable_libc_call_synthesis))
With this one we are losing precision and we may inline too m...