[llvm] [LangRef][VP] Clarify 'ff' mnemonic in vp.load.ff: 'first-fault' (PR #160649)

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llvmbot wrote:


<!--LLVM PR SUMMARY COMMENT-->

@llvm/pr-subscribers-llvm-ir

Author: Shih-Po Hung (arcbbb)

<details>
<summary>Changes</summary>

The LangRef for llvm.vp.load.ff.* stated that 'ff' stands for 'fault-first or fault-only-first.' This patch corrects this to 'first-fault or fault-only-first.' to match established terminology.

- ARM SVE uses "first-fault" [1]
- RISC-V V uses "fault-only-first" [2]

[1] https://arxiv.org/abs/1803.06185
[2] https://github.com/riscvarchive/riscv-v-spec/blob/master/v-spec.adoc

---
Full diff: https://github.com/llvm/llvm-project/pull/160649.diff


1 Files Affected:

- (modified) llvm/docs/LangRef.rst (+1-1) 


``````````diff
diff --git a/llvm/docs/LangRef.rst b/llvm/docs/LangRef.rst
index e6713c827d6ab..bd47606762bf1 100644
--- a/llvm/docs/LangRef.rst
+++ b/llvm/docs/LangRef.rst
@@ -24468,7 +24468,7 @@ Overview:
 
 The '``llvm.vp.load.ff.*``' intrinsic is similar to
 '``llvm.vp.load.*``', but will not trap if there are not ``evl`` readable
-lanes at the pointer. '``ff``' stands for fault-first or fault-only-first.
+lanes at the pointer. '``ff``' stands for first-fault or fault-only-first.
 
 Arguments:
 """"""""""

``````````

</details>


https://github.com/llvm/llvm-project/pull/160649