From ca25d25d4c5131491a50b1a94e63e9b2d3c34ed4 Mon Sep 17 00:00:00 2001
From: Richard-Qin-X <richard.qin.001@gmail.com>
Date: Sun, 16 Aug 2026 16:13:12 +0800
Subject: [RISCV][GlobalISel] Select comparisons against zero

---
 backend/utils/TableGen/Common/CodeGenTarget.h | 25 +++++++++++++++++++++++++
 1 file changed, 25 insertions(+)

(limited to 'backend/utils/TableGen/Common/CodeGenTarget.h')

diff --git a/backend/utils/TableGen/Common/CodeGenTarget.h b/backend/utils/TableGen/Common/CodeGenTarget.h
index 929d3e7..bee814f 100644
--- a/backend/utils/TableGen/Common/CodeGenTarget.h
+++ b/backend/utils/TableGen/Common/CodeGenTarget.h
@@ -189,17 +189,42 @@ struct NormalizedSelectionOperandClassPredicate final {
   std::uint32_t RegClass = 0;
 };
 
+struct NormalizedSelectionIntegerPredicate final {
+  std::uint32_t OperandIndex = 0;
+  std::uint32_t Predicate = 0;
+};
+
+struct NormalizedSelectionOperandDefConstantPredicate final {
+  std::uint32_t OperandIndex = 0;
+  std::int64_t Value = 0;
+};
+
+struct NormalizedSelectionOperandRenderer final {
+  enum class Kind : std::uint8_t {
+    Operand,
+    PhysicalRegister,
+  };
+
+  Kind SourceKind = Kind::Operand;
+  std::uint32_t Value = 0;
+  std::uint16_t Flags = 0;
+};
+
 struct NormalizedSelectionRule final {
   std::string Symbol;
   std::uint32_t Priority = 0;
   std::uint32_t Specificity = 0;
   std::uint32_t MatchOpcode = 0;
   std::optional<NormalizedSelectionTypePredicate> ResultType;
+  std::optional<NormalizedSelectionIntegerPredicate> IntegerPredicate;
   std::vector<NormalizedSelectionOperandTypePredicate> OperandTypes;
   std::vector<NormalizedSelectionOperandBankPredicate> OperandBanks;
   std::vector<NormalizedSelectionOperandClassPredicate> OperandClasses;
+  std::vector<NormalizedSelectionOperandDefConstantPredicate> OperandDefConstants;
   std::uint32_t ResultOpcode = 0;
+  std::optional<std::vector<NormalizedSelectionOperandRenderer>> OperandRenderers;
   std::vector<std::int64_t> AppendedImmediates;
+  std::vector<std::uint32_t> EraseOperandDefinitions;
 };
 
 struct NormalizedTargetModel final {
-- 
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