[NativeAOT] fix debug assert on large number of virtual methods #77106
Conversation
This file contains bidirectional Unicode text that may be interpreted or compiled differently than what appears below. To review, open the file in an editor that reveals hidden Unicode characters.
Learn more about bidirectional Unicode characters
According to the ARM docs for this op code: https://developer.arm.com/documentation/ddi0596/2020-12/Base-Instructions/LDR--immediate---Load-Register--immediate--?lang=en > For the 64-bit variant: is the optional positive immediate byte offset, a multiple of 8 in the range 0 to 32760, defaulting to 0 and encoded in the "imm12" field as <pimm>/8. You can see that once the offset has been devided by 8, it will be in the range [0, 4095], which will fit in the 12 bits allocated for the offset.
ghost
added
the
community-contribution
jkotas
reviewed
Oct 17, 2022
src/coreclr/tools/Common/Compiler/DependencyAnalysis/Target_ARM64/ARM64Emitter.cs
Outdated
Show resolved
Hide resolved
Sign up for free
to subscribe to this conversation on GitHub.
Already have an account?
Sign in.
Add this suggestion to a batch that can be applied as a single commit.
This suggestion is invalid because no changes were made to the code.
Suggestions cannot be applied while the pull request is closed.
Suggestions cannot be applied while viewing a subset of changes.
Only one suggestion per line can be applied in a batch.
Add this suggestion to a batch that can be applied as a single commit.
Applying suggestions on deleted lines is not supported.
You must change the existing code in this line in order to create a valid suggestion.
Outdated suggestions cannot be applied.
This suggestion has been applied or marked resolved.
Suggestions cannot be applied from pending reviews.
Suggestions cannot be applied on multi-line comments.
Suggestions cannot be applied while the pull request is queued to merge.
Suggestion cannot be applied right now. Please check back later.
According to the ARM docs for this op code:
https://developer.arm.com/documentation/ddi0596/2020-12/Base-Instructions/LDR--immediate---Load-Register--immediate--?lang=en
I have a program that reproduces the problem. It is just a class with 1000 virtual properties and a RD.xml file to root them all. The actual program I was trying to compile when I encountered the problem was Microsoft.macos.dll. There are some classes with a large number of virtual methods in that assembly.