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| author | anjenner <161845516+anjenner@users.noreply.github.com> | 2025-12-09 23:13:33 +0000 |
|---|---|---|
| committer | GitHub <noreply@github.com> | 2025-12-09 23:13:33 +0000 |
| commit | 27651133e213a6a1eb4d0e47837625cee3613111 (patch) | |
| tree | dfc27f4c48aefacb3fc7e2a709f8fc92a19bd7e7 /llvm/docs | |
| parent | 0a2e56df64c936bacc746aeb94878d66ee00dec3 (diff) | |
| download | llvm-main.zip llvm-main.tar.gz llvm-main.tar.bz2 | |
These both perform conditional subtraction, returning the minuend and
zero respectively, if the difference is negative.
Diffstat (limited to 'llvm/docs')
| -rw-r--r-- | llvm/docs/AMDGPUUsage.rst | 5 | ||||
| -rw-r--r-- | llvm/docs/ReleaseNotes.md | 4 |
2 files changed, 4 insertions, 5 deletions
diff --git a/llvm/docs/AMDGPUUsage.rst b/llvm/docs/AMDGPUUsage.rst index 3e7a5df..7ecf1c1 100644 --- a/llvm/docs/AMDGPUUsage.rst +++ b/llvm/docs/AMDGPUUsage.rst @@ -1527,11 +1527,6 @@ The AMDGPU backend implements the following LLVM IR intrinsics. The iglp_opt strategy implementations are subject to change. - llvm.amdgcn.atomic.cond.sub.u32 Provides direct access to flat_atomic_cond_sub_u32, global_atomic_cond_sub_u32 - and ds_cond_sub_u32 based on address space on gfx12 targets. This - performs a subtraction only if the memory value is greater than or - equal to the data value. - llvm.amdgcn.s.barrier.signal.isfirst Provides access to the s_barrier_signal_first instruction; additionally ensures that the result value is valid even when the intrinsic is used from a wave that is not running in a workgroup. diff --git a/llvm/docs/ReleaseNotes.md b/llvm/docs/ReleaseNotes.md index 8ec46c6..1b85145 100644 --- a/llvm/docs/ReleaseNotes.md +++ b/llvm/docs/ReleaseNotes.md @@ -114,6 +114,10 @@ Changes to the AArch64 Backend Changes to the AMDGPU Backend ----------------------------- +* Removed `llvm.amdgcn.atomic.cond.sub.u32` and + `llvm.amdgcn.atomic.csub.u32` intrinsics. Users should use the + `atomicrmw` instruction with `usub_cond` and `usub_sat` instead. + Changes to the ARM Backend -------------------------- |