Propagate common metadata from VL onto instruction I.
Declared in <llvm/Analysis/VectorUtils.h>
Instruction*
propagateMetadata(
Instruction* I,
ArrayRef<Value*> VL);Specifically, let Kinds = [MD_tbaa, MD_alias_scope, MD_noalias, MD_fpmath,] MD_nontemporal, MD_access_group, MD_mmra]. For K in Kinds, we get the MDNode for K from each of the elements of VL, compute their "intersection" (i.e., the most generic metadata value that covers all of the individual values), and set I's metadata for M equal to the intersection value.
This function always sets a (possibly null) value for each K in Kinds.
I after its preservable metadata has been updated.
| Name | Description |
|---|---|
| I | Instruction that receives the intersected metadata. |
| VL | Values whose metadata is intersected and propagated. |