C language standard defined library functions `iszero`, `issignaling`
and `issubnormal`, which did not have counterparts among clang builtin
functions. This change adds new functions:
__builtin_iszero
__builtin_issubnormal
__builtin_issignaling
They provide builtin implementation for the missing standard functions.
Pull request: https://github.com/llvm/llvm-project/pull/69041
Instead of (ab)using incomplete array types for this, add a 'Dummy' bit
to Descriptor. We need to be able to differentiate between the two when
adding an offset.
Make sure we pass the expected bitwidth around when casting to
IntAP/IntAPS.
This makes it easier to test the `IntegralAP` code for different bit
widths than 128.
This also re-reverts the commit implementing __builtin_strlen.
I was unable to reproduce the msan issue with an msan-enabled build (for
infrastructure reasons), but I think fixing the target-dependent int
sizes in the implementation of __builtin_fpclassify should work.
For some builtins, we need to do quite a bit of type checking ourselves,
so pass the call expression along. This way we can inspect arguments,
expected return value, etc.
Differential Revision: https://reviews.llvm.org/D155545
The previous version was using llvm::reverse(CallExpr::arguments()),
which causes problems when clang is compiled with GCC.
Differential Revision: https://reviews.llvm.org/D155369
When calling functions in the checkingPotentialConstantExpression mode,
we cannot have arguments (including This + RVO pointers) for the
toplevel callee, but the functions called from within can work just
fine, or at least we succeed in pushing their arguments on the stack, so
we must also succeed in removing them again.
Differential Revision: https://reviews.llvm.org/D150358
Make our Function class keep a list of parameter offsets so we can
simply get a parameter by index when evaluating builtin functions.
Differential Revision: https://reviews.llvm.org/D149816
Just ignore it.
As part of this, move the Ret and RetVoid implementation to Interp.h, so
they can be shared with InterpBuiltin.cpp.
Differential Revision: https://reviews.llvm.org/D141193
