LATX, fix: Abort on itemp register exhaustion - #480
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ra_alloc_itemp_num() returns -1 when all integer temporary registers are in use. Passing that value into the immediate-cache lookup or IR2 operand construction can cause an out-of-bounds access or generate an invalid register operand, making the translator fail later and obscuring the actual cause. Detect exhaustion at the allocation site, report the current itemp status, and abort explicitly in release builds. Signed-off-by: Zewei Yang <yangzewei@loongson.cn>
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ra_alloc_itemp_num() returns -1 when all integer temporary registers are in use. Passing that value into the immediate-cache lookup or IR2 operand construction can cause an out-of-bounds access or generate an invalid register operand, making the translator fail later and obscuring the actual cause.
Detect exhaustion at the allocation site, report the current itemp status, and abort explicitly in release builds.