Used for questions about compiler development (but not design).
Used for questions about compiler development (but not design).
Questions tagged [compiler-development]
21 questions
17
votes
2 answers
What is the A-Normal Form?
I was reading about various intermediate forms but I cant get information about A-normal forms besides the wiki-like entries. Does anyone here know about this or has good resources about it?
unj2
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6
votes
2 answers
How do I implement forward references in a compiler?
I'm creating a compiler with Lex and YACC (actually Flex and Bison). The language allows unlimited forward references to any symbol (like C#). The problem is that it's impossible to parse the language without knowing what an identifier is.
The only…
Zifre
- 26,504
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6
votes
5 answers
Compiler Optimizations Questions
What are some of the ways a compiler eliminates repeated subexpressions recomputations? How do you keep track of the sub-expressions? And How do you identify the repeated ones?
Besides the usage of bitwise operators, what are some of the strength…
unj2
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5
votes
1 answer
Partial application in LLVM
I am trying to create a function "add" that can be applied to a single argument, and subsequently another. I can't figure out how to represent this with LLVM IR, as I don't understand how to call a function with a single value, then save the value…
altschuler
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4
votes
9 answers
How can I make my own C++ compiler understand templates, nested classes, etc. strong features of C++?
It is a university task in my group to write a compiler of C-like language. Of course I am going to implement a small part of our beloved C++.
The exact task is absolutely stupid, and the lecturer told us it need to be self-compilable (should be…
chester89
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4
votes
6 answers
Compiler that recognize different-different languages and send them to their corresponding compilers. Possible?
I was thinking whether it is possible to bridge asp.net, php and java to form a single page.
Actually i dont need any such thing as of now. It was just an idea that stiked to my mind as some features of some languages are good and some features or…
Shantanu Gupta
- 20,688
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2
votes
0 answers
Getting AST of some C code programmatically
What I'm doing?
I'm building a C code analyzer. to do some checks at the compile time. and if passed, compile it.
What do I want?
for my goal, I should lex and parse user source code. maybe in the future, I write a lexer and parser for this, but now…
Redwan
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2
votes
1 answer
C grammar generates invalid expression
I am reading a book namad A Retargetable C Compiler: Design and Implementation.
In this book, the C language grammar is specified like this:
expression:
assignment-expression { , assignment-expression }
assignment-expression:
…
kernel_panic
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1
vote
3 answers
Does Loop Fission Work in Single Cores?
When does it make sense to use Loop fission/distribution if I am compiling for a single core processor?
unj2
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1
vote
1 answer
What is Object Oriented Scanner (Lexical Analysis)?
Recently I came across the concept of Lexical Analysis called "Object Oriented Scanner", but I wasn't able to distinguish it from the normal scanning technique. What can be the extra things in object oriented scanner, please help me understanding…
Viraj
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1
vote
1 answer
Does Java compiler have a problem with method return paths detection
recently I started to do some experiments with different language compilers due to my studies in Compiler Design,
and I found a very odd thing, that happens in Java
and that is, as you may know, if we have a method with no return path, there is no…
Al Banna Techno logy
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1
vote
1 answer
Why we count a string as a single token in lexical analysis of compiler design?
I am learning about compiler design. The task of lexical analyser in compiler is to convert the code into stream of tokes. But I am confused why we consider a string as a single token . For example - printf("%d is integer", x); In this statement…
Mohd Imran
- 33
- 3
1
vote
0 answers
How to design an intermediate representation for language with a nested functions?
I am writing a compiler for language with nested functions.
I decided to use display to access local variables of outer functions from inner ones, I don't know how to represent writing of activation record to display array in intermediate…
cyberfined
- 21
- 3
1
vote
1 answer
Compiler Type Promotion of Right Hand Side expressions automatically in an Assignment Statement
Why does a compiler not type promote all evaluations of expressions in the right hand side of an assignment expression to at least the left hand sides type level?
e.g.
"double x = (88.0 - 32) * 5 / 9" converts to Celsius from Fahrenheit correctly…
wurzja
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- 1
- 12
1
vote
1 answer
Reduce number of temporary variables
I'm writing something like a compiler. The problem is following: I have a code, consisting of a sequence of assignments:
t1=a+b+c
t2=t1*d
t3=sqrt(t1+t2)
t4=t2+5
...
most of "t"-variables are temporary. I want to reduce the…
Pavel
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