From: lkcl <lkcl@web>
Date: Mon, 11 Apr 2022 08:47:08 +0000 (+0100)
Subject: (no commit message)
X-Git-Tag: opf_rfc_ls005_v1~2790
X-Git-Url: https://git.libre-soc.org/?a=commitdiff_plain;h=fbf08d0d2f56576cbb7d15c803e23e3a43bb5293;p=libreriscv.git

---

diff --git a/openpower/sv/svp64/appendix.mdwn b/openpower/sv/svp64/appendix.mdwn
index a94caed5e..6896b8726 100644
--- a/openpower/sv/svp64/appendix.mdwn
+++ b/openpower/sv/svp64/appendix.mdwn
@@ -851,6 +851,7 @@ achieved in DCT and FFT REMAP**
 ///
 /// all input arrays have length `vl`
 def reduce(vl, vec, pred):
+    pred = copy(pred) # must not damage preficate
     step = 1;
     while step < vl
         step *= 2;
@@ -887,7 +888,8 @@ An alternative algorithm is therefore required that does not perform MVs,
 and does not require additional state to be saved on context-switching.
 
 ```
-def reduce(  vl,  vec, pred, pred,):
+def reduce(  vl,  vec, pred ):
+    pred = copy(pred) # must not damage predicate
     j = 0
     vi = [] # array of lookup indices to skip nonpredicated
     for i, pbit in enumerate(pred):