[EXT_EP-11231] Compiler emits the wrong constant when the input to __delay_cycles exceeds INT32_MAX Created: 07/Jul/23 Updated: 10/Jul/23 |
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| Status: | New |
| Project: | Embedded Software & Tools |
| Component/s: | None |
| Affects Version/s: | None |
| Fix Version/s: | None |
| Type: | Bug | Priority: | Low |
| Reporter: | TI User | Assignee: | TI User |
| Resolution: | Unresolved | Votes: | 0 |
| Remaining Estimate: | Not Specified | ||
| Time Spent: | Not Specified | ||
| Original Estimate: | Not Specified | ||
| Product: | Code Generation Tools |
| Internal ID: | CODEGEN-11257 |
| Forum URL: | https://e2e.ti.com/support/tools/code-composer-studio-group/ccs/f/81/t/1245850 |
| Found In Release: | PRU_2.3.3 |
| Affected Platform/Device: | default |
| Description |
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The problem only occurs when building on Linux. The attached file.c contains these lines ... const uint32_t MAX_CYCLES_WITHOUT_ERROR = INT32_MAX;
void main(void)
{
__delay_cycles(MAX_CYCLES_WITHOUT_ERROR);
__delay_cycles(MAX_CYCLES_WITHOUT_ERROR+22);
}
Build it ... $ clpru -s file.c
"file.asm", WARNING! at line 76: [W0001] Constant value out of range, will be
truncated to 32 bits
LDI32 r0, 9223372035781033993
No Assembly Errors, 1 Assembly Warning
This line is associated with the second call to __delay_cycles. When built on Windows, the compiler emits this instead ... LDI32 r0, 1073741833 |