| Issue |
129698
|
| Summary |
[LLVM] Kaleidoscope compilation fails for chapter 4
|
| Labels |
new issue
|
| Assignees |
|
| Reporter |
nots1dd
|
Upon compiling Chapter 4 of Kaleidoscope this error pops up:
```bash
untoy.cpp:646:35: error: no member named 'toPtr' in 'llvm::orc::ExecutorSymbolDef'
646 | double (*FP)() = ExprSymbol.toPtr<double (*)()>();
| ~~~~~~~~~~ ^
untoy.cpp:646:50: error: expected _expression_
646 | double (*FP)() = ExprSymbol.toPtr<double (*)()>();
| ^
untoy.cpp:646:55: error: expected _expression_
646 | double (*FP)() = ExprSymbol.toPtr<double (*)()>();
| ^
3 errors generated.
```
The main issue lies in this code snippet:
```cpp
// Search the JIT for the __anon_expr symbol.
auto ExprSymbol = ExitOnErr(TheJIT->lookup("__anon_expr"));
/* ExprSymbolDef does not have this method (API change)! */
double (*FP)() = ExprSymbol.toPtr<double (*)()>();
fprintf(stderr, "Evaluated to %f\n", FP());
```
The error persists in future chapters until Chapter 8 where the focus shifts on compiling to object code.
This seems to be the issue of the ORC's API being outdated and I already have a possible solution on how to fix this.
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