[SLP][NFC]Do not check poison values for corresponding vectorized entries

alexey-bataev · alexey-bataev · commit f1d5e70a00fb · 2025-01-27T06:38:23.000-08:00
No need to check poison values if they have been vectorized and/or mark
them as vectorized, it should work only for instructions.
diff --git a/llvm/lib/Transforms/Vectorize/SLPVectorizer.cpp b/llvm/lib/Transforms/Vectorize/SLPVectorizer.cpp
@@ -3643,6 +3643,8 @@ class BoUpSLP {
     }
     if (!Last->isGather()) {
       for (Value *V : VL) {
+        if (isa<PoisonValue>(V))
+          continue;
         const TreeEntry *TE = getTreeEntry(V);
         assert((!TE || TE == Last || doesNotNeedToBeScheduled(V)) &&
                "Scalar already in tree!");

Original file line number	Diff line number	Diff line change
`@@ -3643,6 +3643,8 @@ class BoUpSLP {`
`3643`	`3643`	`}`
`3644`	`3644`	`if (!Last->isGather()) {`
`3645`	`3645`	`for (Value *V : VL) {`
	`3646`	`+ if (isa<PoisonValue>(V))`
	`3647`	`+ continue;`
`3646`	`3648`	`const TreeEntry *TE = getTreeEntry(V);`
`3647`	`3649`	`assert((!TE \|\| TE == Last \|\| doesNotNeedToBeScheduled(V)) &&`
`3648`	`3650`	`"Scalar already in tree!");`