Hello Thomas,

Displaying infix expressions would be useful but I wonder if it is worth
the effort? That said, if you want to give it a go, I would be supportive
:-)

Regards

Paul


On Sun, 26 Jul 2026 at 17:16, Thomas Koenig <[email protected]> wrote:

> Hello world,
>
> having recently had the occasion to look at -fdump-fortran-original
> dumps, I found them to be quite hard to read, the same goes for
> "call debug(expr)" in the debugger. A line like
>
> ASSIGN reallocation_bug:y((+ block@1:__var_2_do 1_8)) (+
> reallocation_bug:y((+ block@1:__var_2_do 1_8)) (* reallocation_bug:a((+
> block@1:__var_2_do 1_8) , (+ block@1:__var_1_do 1_8))
> reallocation_bug:x((+ block@1:__var_1_do 1_8))))
>
> takes quite some counting of parentheses to decipher.
>
> I see two possibilities there. One would be to write a script that
> takes the output from -fdump-fortran-original and rewrites it
> in infix notation (at least the code sections). This would be
> possible, but would be unstable because we do not guarantee the
> output format, and would not help with the debugger output.
>
> The other possibility would be to write additional functions
> in dump-parse-tree.cc which transfer things into infix
> notation, to be output with a separate flag, and to also
> (optionally) use that for debugging, at least for code.
> The output need not be compilable, but it should be
> readable by a human.
>
> I also would not mind having a + b + c being displayed
> as (a + b) + c (and namespace names could also be dropped).
>
> So, the line above would then read something like
>
> y(__var_2_do + 1_8) = y(__var_2_do + 1_8) + (a(__var_2_do + 1,
> __var_1_do + 1) * b(__var_a_do + 1))
>
> which I think is easier.
>
> What do you think, would this be useful?
>
> Best regards
>
>         Thomas
>
>
>
>
>

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