[clang] [clang][Interp] Enhance CodePtr (PR #101787)
Timm Baeder via cfe-commits
cfe-commits at lists.llvm.org
Fri Aug 2 21:17:50 PDT 2024
https://github.com/tbaederr created https://github.com/llvm/llvm-project/pull/101787
Add more relational operators.
>From 02ba0cd327c91d65ac6d4ee7699a590cea6a92ec Mon Sep 17 00:00:00 2001
From: =?UTF-8?q?Timm=20B=C3=A4der?= <tbaeder at redhat.com>
Date: Fri, 2 Aug 2024 17:45:19 +0200
Subject: [PATCH] [clang][Interp] Enhance CodePtr
Add more relational operators.
---
clang/lib/AST/Interp/Source.h | 13 +++++++++----
1 file changed, 9 insertions(+), 4 deletions(-)
diff --git a/clang/lib/AST/Interp/Source.h b/clang/lib/AST/Interp/Source.h
index c28b488ff554d..88b5ec7740df5 100644
--- a/clang/lib/AST/Interp/Source.h
+++ b/clang/lib/AST/Interp/Source.h
@@ -29,7 +29,7 @@ class Function;
/// Pointer into the code segment.
class CodePtr final {
public:
- CodePtr() : Ptr(nullptr) {}
+ CodePtr() = default;
CodePtr &operator+=(int32_t Offset) {
Ptr += Offset;
@@ -45,11 +45,16 @@ class CodePtr final {
assert(Ptr != nullptr && "Invalid code pointer");
return CodePtr(Ptr - RHS);
}
+ CodePtr operator+(ssize_t RHS) const {
+ assert(Ptr != nullptr && "Invalid code pointer");
+ return CodePtr(Ptr + RHS);
+ }
bool operator!=(const CodePtr &RHS) const { return Ptr != RHS.Ptr; }
const std::byte *operator*() const { return Ptr; }
-
- operator bool() const { return Ptr; }
+ explicit operator bool() const { return Ptr; }
+ bool operator<=(const CodePtr &RHS) const { return Ptr <= RHS.Ptr; }
+ bool operator>=(const CodePtr &RHS) const { return Ptr >= RHS.Ptr; }
/// Reads data and advances the pointer.
template <typename T> std::enable_if_t<!std::is_pointer<T>::value, T> read() {
@@ -65,7 +70,7 @@ class CodePtr final {
/// Constructor used by Function to generate pointers.
CodePtr(const std::byte *Ptr) : Ptr(Ptr) {}
/// Pointer into the code owned by a function.
- const std::byte *Ptr;
+ const std::byte *Ptr = nullptr;
};
/// Describes the statement/declaration an opcode was generated from.
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