[NFC] Eagerly create segments when parsing datacount #6958
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In preparation for using IRBuilder in the binary parser, eagerly create Functions when parsing the function section so that they are already created once we parse the code section. IRBuilder will require the functions to exist when parsing calls so it can figure out what type each call should have, even when there is a call to a function whose body has not been parsed yet. NFC except that some error messages change to include the new empty functions.
The purpose of the datacount section is to pre-declare how many data segments there will be so that engines can allocate space for them and not have to back patch subsequent instructions in the code section that refer to them. Once we use IRBuilder in the binary parser, we will have to have the data segments available by the time we parse instructions that use them, so eagerly construct the data segments when parsing the datacount section.
kripken
approved these changes
Sep 19, 2024
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The purpose of the datacount section is to pre-declare how many data
segments there will be so that engines can allocate space for them
and not have to back patch subsequent instructions in the code section
that refer to them. Once we use IRBuilder in the binary parser, we will
have to have the data segments available by the time we parse
instructions that use them, so eagerly construct the data segments when
parsing the datacount section.