| View Issue Details [ Jump to Notes ] | [ Issue History ] [ Print ] | ||||||||
| ID | Project | Category | View Status | Date Submitted | Last Update | ||||
|---|---|---|---|---|---|---|---|---|---|
| 0000044 | mercury | Bug | public | 2008-02-07 16:44 | 2008-02-20 14:05 | ||||
| Reporter | juliensf | ||||||||
| Assigned To | zs | ||||||||
| Priority | high | Severity | major | Reproducibility | always | ||||
| Status | resolved | Resolution | fixed | ||||||
| Product Version | |||||||||
| Target Version | Fixed in Version | ||||||||
| Summary | 0000044: compiler abort in debug grades | ||||||||
| Description | The attached program causes the compiler to abort in (decl)debug grades with the following error: Uncaught Mercury exception: Software Error: llds_out.m: Unexpected: stack var out of range Compile with: mmc --grade asm_fast.gc.tr.debug -C fzn_debug_abort.m | ||||||||
| Tags | No tags attached. | ||||||||
| Attached Files |
| ||||||||
 Relationships |
|
 Relationships |
| Notes |
|
|
zs (developer) 2008-02-07 21:27 |
There are two reasons for the abort. First, unify_gen.m wasn't checking whether a variable it was adding to a closure was of dummy type or not. (The abort is when writing out the code that constructs the closure.) I have a fix for that. Second, the code for recognizing whether a type is dummy or not recognized only two cases: builtin dummy types such as io.state, and types with one function symbol of arity zero. In this program, there is a notag wrapper around a dummy type. Since the representation of a notag type is always the same as the type it wraps, this notag type should be recognized as a dummy type too. I am still working on that. |
|
zs (developer) 2008-02-20 14:05 |
fix committed feb 12. |
| Notes |
| Issue History |
|||
| Date Modified | Username | Field | Change |
|---|---|---|---|
| 2008-02-07 16:44 | juliensf | New Issue | |
| 2008-02-07 16:44 | juliensf | File Added: fzn_debug_abort.m | |
| 2008-02-07 20:34 | zs | Status | new => assigned |
| 2008-02-07 20:34 | zs | Assigned To | => zs |
| 2008-02-07 21:27 | zs | Note Added: 0000074 | |
| 2008-02-20 14:05 | zs | Status | assigned => resolved |
| 2008-02-20 14:05 | zs | Resolution | open => fixed |
| 2008-02-20 14:05 | zs | Note Added: 0000078 | |
| Issue History |