Displaying 3 results from an estimated 3 matches for "pqcc".
Did you mean:
pcc
2013 Feb 22
1
[LLVMdev] testing instruction selection
...i representation for DAGS.
It should be possible to start the compiler from the DAGS as opposed to
LLVM assembler bitcode.
It should also be possible to compile a C file or LLVM assembler bitcode
file and save off the DAGS ascii file.
Believe it or not, they had this over 30 years ago with the PQCC
(Production Quality Compiler Compiler ) project at Carnegie Mellon.
Intermetrics where I worked had a commercial version of this and later
Tartan Laboratories.
http://en.wikipedia.org/wiki/PQCC
Any phase of the compiler had an ascii representation that could be
parsed into binary stuctures and...
2013 Feb 22
2
[LLVMdev] testing instruction selection
It's kind of troubling that you can't create test cases that start with
DAG as opposed to bitcode .ll.
It's very tedious sometimes to go through and make sure that you have
really tested all your patterns and sometimes the compiler changes and
it stops generating those patterns but may resume generating them later.
So if you make a change at a time when it's not generating
2013 Feb 22
0
[LLVMdev] testing instruction selection
Do you have any suggestions about how to address this?
-- Sean Silva