From cc55d289494c991e7e0e456e428a110569708c2e Mon Sep 17 00:00:00 2001
From: ameerj <52414509+ameerj@users.noreply.github.com>
Date: Thu, 25 Feb 2021 00:46:40 -0500
Subject: shader: Implement SHR

---
 src/shader_recompiler/frontend/ir/ir_emitter.cpp | 4 ++++
 src/shader_recompiler/frontend/ir/ir_emitter.h   | 1 +
 src/shader_recompiler/frontend/ir/opcodes.inc    | 1 +
 3 files changed, 6 insertions(+)

(limited to 'src/shader_recompiler/frontend/ir')

diff --git a/src/shader_recompiler/frontend/ir/ir_emitter.cpp b/src/shader_recompiler/frontend/ir/ir_emitter.cpp
index 0209d5540..7c3908398 100644
--- a/src/shader_recompiler/frontend/ir/ir_emitter.cpp
+++ b/src/shader_recompiler/frontend/ir/ir_emitter.cpp
@@ -804,6 +804,10 @@ U32 IREmitter::BitFieldExtract(const U32& base, const U32& offset, const U32& co
                      count);
 }
 
+U32 IREmitter::BitReverse(const U32& value) {
+    return Inst<U32>(Opcode::BitReverse32, value);
+}
+
 U1 IREmitter::ILessThan(const U32& lhs, const U32& rhs, bool is_signed) {
     return Inst<U1>(is_signed ? Opcode::SLessThan : Opcode::ULessThan, lhs, rhs);
 }
diff --git a/src/shader_recompiler/frontend/ir/ir_emitter.h b/src/shader_recompiler/frontend/ir/ir_emitter.h
index 2c923716a..f7998e156 100644
--- a/src/shader_recompiler/frontend/ir/ir_emitter.h
+++ b/src/shader_recompiler/frontend/ir/ir_emitter.h
@@ -159,6 +159,7 @@ public:
                                      const U32& count);
     [[nodiscard]] U32 BitFieldExtract(const U32& base, const U32& offset, const U32& count,
                                       bool is_signed);
+    [[nodiscard]] U32 BitReverse(const U32& value);
 
     [[nodiscard]] U1 ILessThan(const U32& lhs, const U32& rhs, bool is_signed);
     [[nodiscard]] U1 IEqual(const U32& lhs, const U32& rhs);
diff --git a/src/shader_recompiler/frontend/ir/opcodes.inc b/src/shader_recompiler/frontend/ir/opcodes.inc
index 289e76f32..f420f1161 100644
--- a/src/shader_recompiler/frontend/ir/opcodes.inc
+++ b/src/shader_recompiler/frontend/ir/opcodes.inc
@@ -231,6 +231,7 @@ OPCODE(BitwiseXor32,                                        U32,            U32,
 OPCODE(BitFieldInsert,                                      U32,            U32,            U32,            U32,            U32,            )
 OPCODE(BitFieldSExtract,                                    U32,            U32,            U32,            U32,                            )
 OPCODE(BitFieldUExtract,                                    U32,            U32,            U32,            U32,                            )
+OPCODE(BitReverse32,                                        U32,            U32,                                                            )
 
 OPCODE(SLessThan,                                           U1,             U32,            U32,                                            )
 OPCODE(ULessThan,                                           U1,             U32,            U32,                                            )
-- 
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