[llvm] 381405f - [NFC][TableGen] Emit more readable builtin string table (#105445)
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Thu Aug 22 19:17:03 PDT 2024
Author: Rahul Joshi
Date: 2024-08-22T19:16:59-07:00
New Revision: 381405fafe9d48d29c777e7680902d0943834859
URL: https://github.com/llvm/llvm-project/commit/381405fafe9d48d29c777e7680902d0943834859
DIFF: https://github.com/llvm/llvm-project/commit/381405fafe9d48d29c777e7680902d0943834859.diff
LOG: [NFC][TableGen] Emit more readable builtin string table (#105445)
- Add `EmitStringLiteralDef` to StringToOffsetTable class to emit more
readable string table.
- Use that in `EmitIntrinsicToBuiltinMap`.
Added:
Modified:
llvm/include/llvm/TableGen/StringToOffsetTable.h
llvm/utils/TableGen/IntrinsicEmitter.cpp
Removed:
################################################################################
diff --git a/llvm/include/llvm/TableGen/StringToOffsetTable.h b/llvm/include/llvm/TableGen/StringToOffsetTable.h
index 7fb9d02d77c704..f2a20f06ae007f 100644
--- a/llvm/include/llvm/TableGen/StringToOffsetTable.h
+++ b/llvm/include/llvm/TableGen/StringToOffsetTable.h
@@ -12,6 +12,7 @@
#include "llvm/ADT/SmallString.h"
#include "llvm/ADT/StringExtras.h"
#include "llvm/ADT/StringMap.h"
+#include "llvm/Support/FormatVariadic.h"
#include "llvm/Support/raw_ostream.h"
#include <cctype>
#include <optional>
@@ -52,6 +53,31 @@ class StringToOffsetTable {
return II->second;
}
+ // Emit the string using string literal concatenation, for better readability
+ // and searchability.
+ void EmitStringLiteralDef(raw_ostream &OS, const Twine &Decl,
+ const Twine &Indent = " ") const {
+ OS << formatv(R"(
+#ifdef __GNUC__
+#pragma GCC diagnostic push
+#pragma GCC diagnostic ignored "-Woverlength-strings"
+#endif
+{0}{1} = )",
+ Indent, Decl);
+
+ for (StringRef Str : split(AggregateString, '\0')) {
+ OS << "\n" << Indent << " \"";
+ OS.write_escaped(Str);
+ OS << "\\0\"";
+ }
+ OS << R"(;
+#ifdef __GNUC__
+#pragma GCC diagnostic pop
+#endif
+)";
+ }
+
+ // Emit the string as one single string.
void EmitString(raw_ostream &O) {
// Escape the string.
SmallString<256> Str;
diff --git a/llvm/utils/TableGen/IntrinsicEmitter.cpp b/llvm/utils/TableGen/IntrinsicEmitter.cpp
index 5d972157828784..8e536c99f627f5 100644
--- a/llvm/utils/TableGen/IntrinsicEmitter.cpp
+++ b/llvm/utils/TableGen/IntrinsicEmitter.cpp
@@ -669,9 +669,7 @@ Intrinsic::getIntrinsicFor{1}Builtin(StringRef TargetPrefix,
}
if (!Table.empty()) {
- OS << " static constexpr char BuiltinNames[] = {\n";
- Table.EmitCharArray(OS);
- OS << " };\n\n";
+ Table.EmitStringLiteralDef(OS, "static constexpr char BuiltinNames[]");
OS << R"(
struct BuiltinEntry {
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