[PATCH] D106257: [ISD] Add disclaimer comments to AssertSext/Zext/Align opcodes about poison values
Simon Pilgrim via Phabricator via llvm-commits
llvm-commits at lists.llvm.org
Mon Jul 19 09:16:30 PDT 2021
This revision was landed with ongoing or failed builds.
This revision was automatically updated to reflect the committed changes.
Closed by commit rG8c598b77a038: [ISD] Add disclaimer comments to AssertSext/Zext/Align opcodes about poison… (authored by RKSimon).
Repository:
rG LLVM Github Monorepo
CHANGES SINCE LAST ACTION
https://reviews.llvm.org/D106257/new/
https://reviews.llvm.org/D106257
Files:
llvm/include/llvm/CodeGen/ISDOpcodes.h
Index: llvm/include/llvm/CodeGen/ISDOpcodes.h
===================================================================
--- llvm/include/llvm/CodeGen/ISDOpcodes.h
+++ llvm/include/llvm/CodeGen/ISDOpcodes.h
@@ -55,9 +55,16 @@
/// value that has already been zero or sign extended from a narrower type.
/// These nodes take two operands. The first is the node that has already
/// been extended, and the second is a value type node indicating the width
- /// of the extension
+ /// of the extension.
+ /// NOTE: In case of the source value (or any vector element value) is
+ /// poisoned the assertion will not be true for that value.
AssertSext,
AssertZext,
+
+ /// AssertAlign - These nodes record if a register contains a value that
+ /// has a known alignment and the trailing bits are known to be zero.
+ /// NOTE: In case of the source value (or any vector element value) is
+ /// poisoned the assertion will not be true for that value.
AssertAlign,
/// Various leaf nodes.
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