shader: Implement FSWZADD

3 files changed, 6 insertions, 0 deletions

diff --git a/src/shader_recompiler/frontend/ir/ir_emitter.cpp b/src/shader_recompiler/frontend/ir/ir_emitter.cpp
index 552472487..505fba46a 100644
--- a/src/shader_recompiler/frontend/ir/ir_emitter.cpp
+++ b/src/shader_recompiler/frontend/ir/ir_emitter.cpp
@@ -1602,4 +1602,7 @@ U32 IREmitter::ShuffleButterfly(const IR::U32& value, const IR::U32& index, cons
                                 const IR::U32& seg_mask) {
     return Inst<U32>(Opcode::ShuffleButterfly, value, index, clamp, seg_mask);
 }
+F32 IREmitter::FSwizzleAdd(const F32& a, const F32& b, const U32& swizzle, FpControl control) {
+    return Inst<F32>(Opcode::FSwizzleAdd, Flags{control}, a, b, swizzle);
+}
 } // namespace Shader::IR
diff --git a/src/shader_recompiler/frontend/ir/ir_emitter.h b/src/shader_recompiler/frontend/ir/ir_emitter.h
index 17bc32fc8..8f3325738 100644
--- a/src/shader_recompiler/frontend/ir/ir_emitter.h
+++ b/src/shader_recompiler/frontend/ir/ir_emitter.h
@@ -277,6 +277,8 @@ public:
                                   const IR::U32& seg_mask);
     [[nodiscard]] U32 ShuffleButterfly(const IR::U32& value, const IR::U32& index,
                                        const IR::U32& clamp, const IR::U32& seg_mask);
+    [[nodiscard]] F32 FSwizzleAdd(const F32& a, const F32& b, const U32& swizzle,
+                                  FpControl control = {});
 
 private:
     IR::Block::iterator insertion_point;
diff --git a/src/shader_recompiler/frontend/ir/opcodes.inc b/src/shader_recompiler/frontend/ir/opcodes.inc
index fb79e3d8d..717aa71ca 100644
--- a/src/shader_recompiler/frontend/ir/opcodes.inc
+++ b/src/shader_recompiler/frontend/ir/opcodes.inc
@@ -408,3 +408,4 @@ OPCODE(ShuffleIndex,                                        U32,            U32,
 OPCODE(ShuffleUp,                                           U32,            U32,            U32,            U32,            U32,                            )
 OPCODE(ShuffleDown,                                         U32,            U32,            U32,            U32,            U32,                            )
 OPCODE(ShuffleButterfly,                                    U32,            U32,            U32,            U32,            U32,                            )
+OPCODE(FSwizzleAdd,                                         F32,            F32,            F32,            U32,                                            )