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Tracking Issue for amdgcn target #135024

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Tracking Issue for amdgcn target#135024

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A-LLVMArea: Code generation parts specific to LLVM. Both correctness bugs and optimization-related issues.Area: Code generation parts specific to LLVM. Both correctness bugs and optimization-related issues.C-tracking-issueCategory: An issue tracking the progress of sth. like the implementation of an RFCCategory: An issue tracking the progress of sth. like the implementation of an RFCO-amdgcnTarget: the Radeon 9001XT and suchTarget: the Radeon 9001XT and suchT-compilerRelevant to the compiler team, which will review and decide on the PR/issue.Relevant to the compiler team, which will review and decide on the PR/issue.

Description

opened

Issue body actions

This issue tracks the implementation of the amdgpu target.

MCP: Add amdgpu target compiler-team#823

Old, closed tracking issue: #51575

Current work-in-progress branch: https://github.com/Flakebi/rust/tree/amdgpu

Examples and support libraries: https://github.com/Flakebi/amdgpu-rs

Implementation

Add amdgpu target: Add amdgpu target #134740
Disable f128 in compiler-builtins: Disable f128 for amdgpu compiler-builtins#737
Cast allocas to default address space: Cast allocas to default address space #135025
Cast global vars to default address space: Cast global variables to default address space #135026
Add triple to cc crate (once target is in nightly) (not necessary anymore)
Add test compiling core and alloc
Add gpu-kernel calling convention: Add gpu-kernel calling convention #135047
Require no_mangle or export_name for gpu-kernel functions: Add checks for gpu-kernel calling conv #149991
Export <kernel>.kd kernel descriptor symbol: Export kernel descriptor for amdgpu kernels #135909
Require explicit -C target-cpu=: Target option to require explicit cpu #135030
Fix linker-plugin-lto only doing thin lto: Fix linker-plugin-lto only doing thin lto #136840
Fix requiring lto automatically: Fix requires_lto targets needing lto set in cargo #149624
Remove range-metadata amdgpu workaround: Remove range-metadata amdgpu workaround #135027
Add tests for the gpu-kernel calling convention lowering to amdgpu_kernel and the global variable addrspacecasts: Add amdgpu test for addrspacecasting global vars and the gpu-kernel calling convention #146148
Support shared memory (dynamic): Tracking Issue for NVPTX shared memory #135516 Add intrinsic for launch-sized workgroup memory on GPUs #146181
Support shared memory (static): Tracking Issue for NVPTX shared memory #135516
Inline assembly: Add inline asm support for amdgpu #149793
Allow vector types: Allow vector types for amdgpu #149994
Get kernel dispatch packet pointer: Add amdgpu_dispatch_ptr intrinsic #150607
Properly implement the gpu-kernel ABI: Properly implement the gpu-kernel ABI for amdgpu #162177
Tracking Issue for amdgpu arch intrinsics: Tracking Issue for amdgpu arch intrinsics #149988

Bugs

Debug compilation fails due to a bug in LLVM’s AMDGPUResourceUsageAnalysis. This is fixed in llvm main, so will be fixed with the update to LLVM 20
rustc may incorrectly copy convergent operations: MIR passes do not take into account if an operation is convergent #137086 Do not run jump-threading for GPUs #149637 Use convergent attribute to funcs for GPU targets #153995
Taking structs as arguments to gpu-kernel functions does not work correctly and should be forbidden: Add checks for gpu-kernel calling conv #149991
Need -Clink-arg=--no-gc-sections when using linker-plugin-lto: AMDGPUTargetStreamer generates .kd symbols, breaking LTO requirement, may be discarded by --gc-sections llvm/llvm-project#119479
MergeFunctions LLVM pass can generate invalid calls to kernels. Fixed in llvm main, so will be fixed with the next LLVM update: MergeFunctions LLVM pass can generate invalid function calls under calling convention #57356 [MergeFunc] Do not merge kernel functions llvm/llvm-project#174254

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Activity

Flakebi
added
C-tracking-issueCategory: An issue tracking the progress of sth. like the implementation of an RFC
on Jan 2, 2025
matthiaskrgr
added a commit that references this issue on Jan 2, 2025
Rollup merge of rust-lang#135027 - Flakebi:remove-range-workaround, r…
e0cc6f1
rust-timer
added a commit that references this issue on Jan 2, 2025
Unrolled build for rust-lang#135027
b2c9fc2
workingjubilee
added
T-compilerRelevant to the compiler team, which will review and decide on the PR/issue.

O-amdgcnTarget: the Radeon 9001XT and such

A-LLVMArea: Code generation parts specific to LLVM. Both correctness bugs and optimization-related issues.
on Jan 14, 2025
matthiaskrgr
added 2 commits that reference this issue on Jan 14, 2025
Rollup merge of rust-lang#135047 - Flakebi:amdgpu-kernel-cc, r=workin…
a378c7a
Rollup merge of rust-lang#135047 - Flakebi:amdgpu-kernel-cc, r=workin…
75029dc
bors
added a commit that references this issue on Jan 17, 2025
Auto merge of rust-lang#135047 - Flakebi:amdgpu-kernel-cc, r=workingj…
0c2c096
bjorn3
added a commit that references this issue on Jan 20, 2025
Auto merge of rust-lang#135047 - Flakebi:amdgpu-kernel-cc, r=workingj…
14b00fb
matthiaskrgr
added a commit that references this issue on Jan 30, 2025
Rollup merge of rust-lang#135026 - Flakebi:global-addrspace, r=saethlin
89f8abe
bors
added a commit that references this issue on Jan 30, 2025
Auto merge of rust-lang#135030 - Flakebi:require-cpu, r=workingjubilee
a730edc
rust-timer
added a commit that references this issue on Jan 31, 2025
Unrolled build for rust-lang#135026
f74cc46
jhpratt
added a commit that references this issue on Feb 1, 2025
Rollup merge of rust-lang#134740 - Flakebi:amdgpu-target, r=workingju…
9931624
matthiaskrgr
added a commit that references this issue on Feb 1, 2025
Rollup merge of rust-lang#134740 - Flakebi:amdgpu-target, r=workingju…
72c5602
57 remaining items
JonathanBrouwer
added 4 commits that reference this issue on Jun 11, 2026
Rollup merge of rust-lang#149793 - Flakebi:inline-asm, r=Amanieu
3130956
Rollup merge of rust-lang#149793 - Flakebi:inline-asm, r=Amanieu
0aea429
Rollup merge of rust-lang#149793 - Flakebi:inline-asm, r=Amanieu
2448efc
Rollup merge of rust-lang#149793 - Flakebi:inline-asm, r=Amanieu
09c0b82
jhpratt
added a commit that references this issue on Jun 12, 2026
Rollup merge of rust-lang#149793 - Flakebi:inline-asm, r=Amanieu
dde9a66
JonathanBrouwer
added 6 commits that reference this issue on Sep 17, 2026
Rollup merge of rust-lang#162177 - Flakebi:amdgpu-kernel-cc, r=bjorn3
608e2f1
Rollup merge of rust-lang#162177 - Flakebi:amdgpu-kernel-cc, r=bjorn3
246c9f2
Rollup merge of rust-lang#162177 - Flakebi:amdgpu-kernel-cc, r=bjorn3
a554888
Rollup merge of rust-lang#162177 - Flakebi:amdgpu-kernel-cc, r=bjorn3
08c837a
Rollup merge of rust-lang#162177 - Flakebi:amdgpu-kernel-cc, r=bjorn3
289d40d
Rollup merge of rust-lang#162177 - Flakebi:amdgpu-kernel-cc, r=bjorn3
076eb5d
rust-bors
added a commit that references this issue on Sep 23, 2026
Unrolled build for #162177 in rollup 163208
2eefc87
bjorn3
added a commit that references this issue on Sep 28, 2026
Rollup merge of #162177 - Flakebi:amdgpu-kernel-cc, r=bjorn3
dc07bc0
makai410
added 2 commits that reference this issue on Oct 1, 2026
Rollup merge of rust-lang#162177 - Flakebi:amdgpu-kernel-cc, r=bjorn3
febf5f6
Rollup merge of #162177 - Flakebi:amdgpu-kernel-cc, r=bjorn3
085e9c6

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A-LLVMArea: Code generation parts specific to LLVM. Both correctness bugs and optimization-related issues.Area: Code generation parts specific to LLVM. Both correctness bugs and optimization-related issues.C-tracking-issueCategory: An issue tracking the progress of sth. like the implementation of an RFCCategory: An issue tracking the progress of sth. like the implementation of an RFCO-amdgcnTarget: the Radeon 9001XT and suchTarget: the Radeon 9001XT and suchT-compilerRelevant to the compiler team, which will review and decide on the PR/issue.Relevant to the compiler team, which will review and decide on the PR/issue.

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