Compiler crashes on switch statement with hundreds of thousands of case labels

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    • Type: Bug
    • Resolution: Unresolved
    • Priority: Low
    • Code Generation Tools
    • CODEGEN-11322
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      C2000_22.6.0.LTS
      C2000_25.11.0.LTS
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      C2000_22.6.0.LTS C2000_25.11.0.LTS
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    • Rewrite the switch to use if/then statements checking the range of the input.
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      The compiler has trouble handling switch statements with a very large number of case labels. Using the GNU-like extension of case label ranges is an easy way to create a very large number of case labels, which can quickly overflow the compiler's call frame stack.
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      The compiler has trouble handling switch statements with a very large number of case labels. Using the GNU-like extension of case label ranges is an easy way to create a very large number of case labels, which can quickly overflow the compiler's call frame stack.

      The attached source file contains switch case ranges such as ...

      	case RAMLS0_BASE_ADDR ... RAMD1_LAST_ADDR:
	f1();
	break;

      Build it ...

      $ cl2000 file.c

>> Compilation failure

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            TI User
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            TI User
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              Created:
              Updated:

                Connection: Intermediate to External PROD System
                EXTSYNC-4112 - Compiler crashes on switch statemen...
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