This patch adds base 2 logarithm that returns integer result. I initially wanted to name it `!log2`,
but numbers are not permitted in the name. The documentation makes sure to clarify that it is
base 2 since it is not explicit in the operator name.
Differential Revision: https://reviews.llvm.org/D134068
This is a small addition to arithmetic operations that improves
expressiveness of the language.
Differential Revision: https://reviews.llvm.org/D58775
llvm-svn: 355187
Additionally, allow more than two operands to !con, !add, !and, !or
in the same way as is already allowed for !listconcat and !strconcat.
Change-Id: I9659411f554201b90cd8ed7c7e004d381a66fa93
Differential revision: https://reviews.llvm.org/D44112
llvm-svn: 327494
Convert the operand to int if possible, i.e. if the value is properly
initialized. (I suppose there is further room for improvement here to also
peform the shift if the uninitialized bits are shifted out.)
With this little change we can now compute the scaling factor for compressed
displacement with pure tablegen code in the X86 backend. This is useful
because both the X86-disassembler-specific part of tablegen and the assembler
need this and TD is the natural sharing place.
The patch also adds the missing documentation for the shift and add operator.
llvm-svn: 213277
In historical reason, tblgen is not strictly required to be free from memory leaks.
For now, I mark them as XFAIL, they could be fixed, though.
llvm-svn: 194353
