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Resolve lazy slice start/end values

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Fixes #3489
This commit is contained in:
LemonBoy 2019-10-20 16:58:00 +02:00 committed by Andrew Kelley
parent 6948d7fce7
commit 771dafbaba
1 changed files with 10 additions and 5 deletions
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15
src/ir.cpp
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@ -23084,17 +23084,22 @@ static IrInstruction *ir_analyze_instruction_slice(IrAnalyze *ira, IrInstruction
zig_unreachable();
}
uint64_t start_scalar = bigint_as_u64(&casted_start->value.data.x_bigint);
ConstExprValue *start_val = ir_resolve_const(ira, casted_start, UndefBad);
if (!start_val)
return ira->codegen->invalid_instruction;
uint64_t start_scalar = bigint_as_u64(&start_val->data.x_bigint);
if (!ptr_is_undef && start_scalar > rel_end) {
ir_add_error(ira, &instruction->base, buf_sprintf("out of bounds slice"));
return ira->codegen->invalid_instruction;
}
uint64_t end_scalar;
uint64_t end_scalar = rel_end;
if (end) {
end_scalar = bigint_as_u64(&end->value.data.x_bigint);
} else {
end_scalar = rel_end;
ConstExprValue *end_val = ir_resolve_const(ira, end, UndefBad);
if (!end_val)
return ira->codegen->invalid_instruction;
end_scalar = bigint_as_u64(&end_val->data.x_bigint);
}
if (!ptr_is_undef) {
if (end_scalar > rel_end) {