From fde1241ce928d38c2031c827ae0ddee5c6f5af0f Mon Sep 17 00:00:00 2001
From: Mark Rowe <mark@vector35.com>
Date: Thu, 4 Jun 2026 16:36:52 -0700
Subject: Add abs, min, and max instructions

---
 lowlevelilinstruction.cpp | 45 +++++++++++++++++++++++++++++++++++++++++++++
 1 file changed, 45 insertions(+)

(limited to 'lowlevelilinstruction.cpp')

diff --git a/lowlevelilinstruction.cpp b/lowlevelilinstruction.cpp
index 5a100080..c306e571 100644
--- a/lowlevelilinstruction.cpp
+++ b/lowlevelilinstruction.cpp
@@ -338,6 +338,11 @@ static constexpr std::array s_instructionOperandUsage = {
 	OperandUsage{LLIL_CTZ, {SourceExprLowLevelOperandUsage}},
 	OperandUsage{LLIL_RBIT, {SourceExprLowLevelOperandUsage}},
 	OperandUsage{LLIL_CLS, {SourceExprLowLevelOperandUsage}},
+	OperandUsage{LLIL_MINS, {LeftExprLowLevelOperandUsage, RightExprLowLevelOperandUsage}},
+	OperandUsage{LLIL_MAXS, {LeftExprLowLevelOperandUsage, RightExprLowLevelOperandUsage}},
+	OperandUsage{LLIL_MINU, {LeftExprLowLevelOperandUsage, RightExprLowLevelOperandUsage}},
+	OperandUsage{LLIL_MAXU, {LeftExprLowLevelOperandUsage, RightExprLowLevelOperandUsage}},
+	OperandUsage{LLIL_ABS, {SourceExprLowLevelOperandUsage}},
 };
 
 
@@ -1996,6 +2001,7 @@ void LowLevelILInstruction::VisitExprs(bn::base::function_ref<bool(const LowLeve
 	case LLIL_CTZ:
 	case LLIL_RBIT:
 	case LLIL_CLS:
+	case LLIL_ABS:
 	case LLIL_SX:
 	case LLIL_ZX:
 	case LLIL_LOW_PART:
@@ -2018,6 +2024,10 @@ void LowLevelILInstruction::VisitExprs(bn::base::function_ref<bool(const LowLeve
 	case LLIL_AND:
 	case LLIL_OR:
 	case LLIL_XOR:
+	case LLIL_MINS:
+	case LLIL_MAXS:
+	case LLIL_MINU:
+	case LLIL_MAXU:
 	case LLIL_LSL:
 	case LLIL_LSR:
 	case LLIL_ASR:
@@ -2319,6 +2329,7 @@ ExprId LowLevelILInstruction::CopyTo(
 	case LLIL_CTZ:
 	case LLIL_RBIT:
 	case LLIL_CLS:
+	case LLIL_ABS:
 	case LLIL_SX:
 	case LLIL_ZX:
 	case LLIL_LOW_PART:
@@ -2340,6 +2351,10 @@ ExprId LowLevelILInstruction::CopyTo(
 	case LLIL_AND:
 	case LLIL_OR:
 	case LLIL_XOR:
+	case LLIL_MINS:
+	case LLIL_MAXS:
+	case LLIL_MINU:
+	case LLIL_MAXU:
 	case LLIL_LSL:
 	case LLIL_LSR:
 	case LLIL_ASR:
@@ -3406,6 +3421,36 @@ ExprId LowLevelILFunction::CountLeadingSigns(size_t size, ExprId a, uint32_t fla
 }
 
 
+ExprId LowLevelILFunction::MinSigned(size_t size, ExprId left, ExprId right, uint32_t flags, const ILSourceLocation& loc)
+{
+	return AddExprWithLocation(LLIL_MINS, loc, size, flags, left, right);
+}
+
+
+ExprId LowLevelILFunction::MaxSigned(size_t size, ExprId left, ExprId right, uint32_t flags, const ILSourceLocation& loc)
+{
+	return AddExprWithLocation(LLIL_MAXS, loc, size, flags, left, right);
+}
+
+
+ExprId LowLevelILFunction::MinUnsigned(size_t size, ExprId left, ExprId right, uint32_t flags, const ILSourceLocation& loc)
+{
+	return AddExprWithLocation(LLIL_MINU, loc, size, flags, left, right);
+}
+
+
+ExprId LowLevelILFunction::MaxUnsigned(size_t size, ExprId left, ExprId right, uint32_t flags, const ILSourceLocation& loc)
+{
+	return AddExprWithLocation(LLIL_MAXU, loc, size, flags, left, right);
+}
+
+
+ExprId LowLevelILFunction::AbsoluteValue(size_t size, ExprId a, uint32_t flags, const ILSourceLocation& loc)
+{
+	return AddExprWithLocation(LLIL_ABS, loc, size, flags, a);
+}
+
+
 ExprId LowLevelILFunction::SignExtend(size_t size, ExprId a, uint32_t flags, const ILSourceLocation& loc)
 {
 	return AddExprWithLocation(LLIL_SX, loc, size, flags, a);
-- 
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