[AArch64] Add native CPU detection for Microsoft Azure Cobalt 100. #77793
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
This patch extends the -mcpu/mtune=native support to handle the Microsoft Azure Cobalt 100 CPU as a Neoverse N2. We expect users to use -mcpu=neoverse-n2 when targeting this CPU and all the architecture and codegen decisions to be identical. The only difference is that the Microsoft Azure Cobalt 100 has a different Implementer ID in the /proc/cpuinfo entry that needs to be detected in getHostCPUNameForARM appropriately.
davemgreen
approved these changes
Jan 14, 2024
justinfargnoli
pushed a commit
to justinfargnoli/llvm-project
that referenced
this pull request
Jan 28, 2024
…lvm#77793) This patch extends the -mcpu/mtune=native support to handle the Microsoft Azure Cobalt 100 CPU as a Neoverse N2. We expect users to use -mcpu=neoverse-n2 when targeting this CPU and all the architecture and codegen decisions to be identical. The only difference is that the Microsoft Azure Cobalt 100 has a different Implementer ID in the /proc/cpuinfo entry that needs to be detected in getHostCPUNameForARM appropriately.
Sign up for free
to join this conversation on GitHub.
Already have an account?
Sign in to comment
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Outdated suggestions cannot be applied.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.
This patch extends the -mcpu/mtune=native support to handle the Microsoft Azure Cobalt 100 CPU as a Neoverse N2. We expect users to use -mcpu=neoverse-n2 when targeting this CPU and all the architecture and codegen decisions to be identical.
The only difference is that the Microsoft Azure Cobalt 100 has a different Implementer ID in the /proc/cpuinfo entry that needs to be detected in getHostCPUNameForARM appropriately.