mirror of
https://github.com/carbon-language/carbon-lang.git
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Jon Ross-PerkinsandGeoff Romer
a24816a1f4
Note I'm mostly trying to capture [the docs](https://docs.google.com/document/d/1RRYMm42osyqhI2LyjrjockYCutQ5dOf8Abu50kTrkX0/edit?resourcekey=0-kHyqOESbOHmzZphUbtLrTw&tab=t.0) as they exist today, not fixing issues with the docs. I think the doc itself hasn't changed much lately (i.e., for months). Trying to organize it a little better though, particularly so that it shows up reasonably when looking in github or the website. --------- Co-authored-by: Geoff Romer <gromer@google.com>
26 lines
671 B
Markdown
26 lines
671 B
Markdown
# Lower
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<!--
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Part of the Carbon Language project, under the Apache License v2.0 with LLVM
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Exceptions. See /LICENSE for license information.
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SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception
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-->
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<!-- toc -->
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## Table of contents
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- [Overview](#overview)
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<!-- tocstop -->
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## Overview
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Lowering takes the SemIR and produces LLVM IR. At present, this is done in a
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single pass, although it's possible we may need to do a second pass so that we
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can first generate type information for function arguments.
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Lowering is done per `SemIR::InstBlock`. This minimizes changes to the
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`IRBuilder` insertion point, something that is both expensive and potentially
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fragile.
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