Left-to-right push of formal parameters

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1

Hi!

I am working on an LLVM backend for a language that has a runtime system
and the Application Binary Interface (ABI) defines that the formal
parameters should be pushed to stack in *left-to-right* order (in
contrast to common C calling convention). What is the "llvm-way" to
define that in my custom Calling Convention?

- --

Y.
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"I am impatient with stupidity but not with those who are proud of it."
- - Edith Sitwell

2

Hi Yiannis,

I am working on an LLVM backend for a language that has a runtime system
and the Application Binary Interface (ABI) defines that the formal
parameters should be pushed to stack in *left-to-right* order (in
contrast to common C calling convention). What is the "llvm-way" to
define that in my custom Calling Convention?

I don't know the answer to your question, but you can always cheat and have
your front-end produce LLVM IR with parameters in reverse order. For example,
if you have f(int x, double y) in the original language, generate the IR
@f(double %y, i32 %x).

Ciao, Duncan.