[EXT_EP-8981] Conditional expression containing GNU statement expression crashes compiler in C++ mode Created: 25/Jun/18 Updated: 12/Aug/24 Resolved: 18/Apr/22 |
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| Status: | Fixed |
| Project: | Embedded Software & Tools |
| Component/s: | None |
| Affects Version/s: | None |
| Fix Version/s: | None |
| Type: | Bug | Priority: | Medium |
| Reporter: | TI User | Assignee: | TI User |
| Resolution: | Fixed | Votes: | 0 |
| Remaining Estimate: | Not Specified | ||
| Time Spent: | Not Specified | ||
| Original Estimate: | Not Specified | ||
| Product: | Code Generation Tools |
| Internal ID: | CODEGEN-4942 |
| Forum URL: | https://e2e.ti.com/support/development_tools/compiler/f/343/t/702523 |
| Found In Release: | C6000_8.3.0 MSP430_20.2.0.LTS C7000_2.1.0.LTS C6000_8.1.3 C6000_8.2.3 ARM_18.12.0.LTS C2000_21.6.0.LTS PRU_2.3.0 ARM_20.2.0.LTS C2000_20.2.0.LTS C7000_1.4.0.LTS MSP430_18.12.0.LTS C2000_18.12.0.LTS |
| Fix In Release: | ARM_20.2.7.LTS C7000_2.1.2.LTS C2000_18.12.9.LTS C2000_20.2.7.LTS MSP430_21.6.1.LTS C6000_8.3.13 C7000_1.4.3.LTS MSP430_18.12.9.LTS PRU_2.3.4* ARM_18.12.9.LTS* C2000_21.6.1.LTS MSP430_20.2.7.LTS |
| Workaround: | Rewrite the code to avoid the use of GNU statement expressions. For this test case, move the function call out of the conditional clause and save its result to a temporary, then use that temporary in the conditional.
For example: bool temp = func(arg1, ..., ({gcc statement})); if (temp) { ... } |
| Release Notes: | This bug occurs when a conditional clause includes a function call, and that function call has a GCC statement as an argument.
For example: if (func(arg1, ..., ({gcc statement}))) { ... } |
| Description |
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The TI compiler accepts the GNU extension statement expressions in both C and C+. This feature allows using a statement where an expression is allowed in standard C or C, but a statement is not. If one of these statement expressions is used inside a conditional expression (such as that of an if, while, or for), the compiler will fail with an internal error when the code is compiled in C+ mode. |