[llvm] 9bf02a8 - [LLVM][TableGen] Tighten intrinsic properties index type (#110733)
via llvm-commits
llvm-commits at lists.llvm.org
Wed Oct 2 06:06:15 PDT 2024
Author: Rahul Joshi
Date: 2024-10-02T06:06:12-07:00
New Revision: 9bf02a8bfe16f1ed3d98f114a1d59e111fdccb3e
URL: https://github.com/llvm/llvm-project/commit/9bf02a8bfe16f1ed3d98f114a1d59e111fdccb3e
DIFF: https://github.com/llvm/llvm-project/commit/9bf02a8bfe16f1ed3d98f114a1d59e111fdccb3e.diff
LOG: [LLVM][TableGen] Tighten intrinsic properties index type (#110733)
For intrinsic properties that are applicable only to arguments, require
use of class `ArgIndex` for specifying the index. For properties that
are applicable to either arguments or return value, use `AttrIndex`.
Added:
Modified:
llvm/include/llvm/IR/Intrinsics.td
Removed:
################################################################################
diff --git a/llvm/include/llvm/IR/Intrinsics.td b/llvm/include/llvm/IR/Intrinsics.td
index 079ac61adef6e0..1e243eb27b312a 100644
--- a/llvm/include/llvm/IR/Intrinsics.td
+++ b/llvm/include/llvm/IR/Intrinsics.td
@@ -64,36 +64,42 @@ def Throws : IntrinsicProperty;
class AttrIndex<int idx> {
int Value = idx;
}
-def FuncIndex : AttrIndex<-1>;
def RetIndex : AttrIndex<0>;
class ArgIndex<int argNo> : AttrIndex<!add(argNo, 1)>;
+// Note: Properties that are applicable either to arguments or return values
+// use AttrIndex. Properties applicable only to arguments use ArgIndex. Please
+// refer to Attributes.td.
+
// NoCapture - The specified argument pointer is not captured by the intrinsic.
-class NoCapture<AttrIndex idx> : IntrinsicProperty {
+class NoCapture<ArgIndex idx> : IntrinsicProperty {
int ArgNo = idx.Value;
}
-// NoAlias - The specified argument pointer is not aliasing other "noalias" pointer
-// arguments of the intrinsic wrt. the intrinsic scope.
+// NoAlias - The return value or the specified argument pointer is not aliasing
+// other "noalias" pointer arguments of the intrinsic wrt. the intrinsic scope.
class NoAlias<AttrIndex idx> : IntrinsicProperty {
int ArgNo = idx.Value;
}
-// NoUndef - The specified argument is neither undef nor poison.
+// NoUndef - The return value or specified argument is neither undef nor poison.
class NoUndef<AttrIndex idx> : IntrinsicProperty {
int ArgNo = idx.Value;
}
-// NonNull - The specified argument is not null.
+// NonNull - The return value or specified argument is not null.
class NonNull<AttrIndex idx> : IntrinsicProperty {
int ArgNo = idx.Value;
}
+// Align - Alignment for return value or the specified argument.
class Align<AttrIndex idx, int align> : IntrinsicProperty {
int ArgNo = idx.Value;
int Align = align;
}
+// Dereferenceable -- Return value or the specified argument is dereferenceable
+// upto `bytes` bytes in size.
class Dereferenceable<AttrIndex idx, int bytes> : IntrinsicProperty {
int ArgNo = idx.Value;
int Bytes = bytes;
@@ -101,30 +107,30 @@ class Dereferenceable<AttrIndex idx, int bytes> : IntrinsicProperty {
// Returned - The specified argument is always the return value of the
// intrinsic.
-class Returned<AttrIndex idx> : IntrinsicProperty {
+class Returned<ArgIndex idx> : IntrinsicProperty {
int ArgNo = idx.Value;
}
// ImmArg - The specified argument must be an immediate.
-class ImmArg<AttrIndex idx> : IntrinsicProperty {
+class ImmArg<ArgIndex idx> : IntrinsicProperty {
int ArgNo = idx.Value;
}
// ReadOnly - The specified argument pointer is not written to through the
// pointer by the intrinsic.
-class ReadOnly<AttrIndex idx> : IntrinsicProperty {
+class ReadOnly<ArgIndex idx> : IntrinsicProperty {
int ArgNo = idx.Value;
}
// WriteOnly - The intrinsic does not read memory through the specified
// argument pointer.
-class WriteOnly<AttrIndex idx> : IntrinsicProperty {
+class WriteOnly<ArgIndex idx> : IntrinsicProperty {
int ArgNo = idx.Value;
}
// ReadNone - The specified argument pointer is not dereferenced by the
// intrinsic.
-class ReadNone<AttrIndex idx> : IntrinsicProperty {
+class ReadNone<ArgIndex idx> : IntrinsicProperty {
int ArgNo = idx.Value;
}
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