shader: Implement FLO

2 files changed, 13 insertions, 3 deletions

diff --git a/src/shader_recompiler/backend/spirv/emit_spirv.h b/src/shader_recompiler/backend/spirv/emit_spirv.h
index 4d00b235d..5446d6ab6 100644
--- a/src/shader_recompiler/backend/spirv/emit_spirv.h
+++ b/src/shader_recompiler/backend/spirv/emit_spirv.h
@@ -229,7 +229,9 @@ Id EmitBitFieldSExtract(EmitContext& ctx, Id base, Id offset, Id count);
 Id EmitBitFieldUExtract(EmitContext& ctx, Id base, Id offset, Id count);
 Id EmitBitReverse32(EmitContext& ctx, Id value);
 Id EmitBitCount32(EmitContext& ctx, Id value);
-Id EmitBitwiseNot32(EmitContext& ctx, Id a);
+Id EmitBitwiseNot32(EmitContext& ctx, Id value);
+Id EmitFindSMsb32(EmitContext& ctx, Id value);
+Id EmitFindUMsb32(EmitContext& ctx, Id value);
 Id EmitSMin32(EmitContext& ctx, Id a, Id b);
 Id EmitUMin32(EmitContext& ctx, Id a, Id b);
 Id EmitSMax32(EmitContext& ctx, Id a, Id b);
diff --git a/src/shader_recompiler/backend/spirv/emit_spirv_integer.cpp b/src/shader_recompiler/backend/spirv/emit_spirv_integer.cpp
index 5bdd943a4..162fb6a91 100644
--- a/src/shader_recompiler/backend/spirv/emit_spirv_integer.cpp
+++ b/src/shader_recompiler/backend/spirv/emit_spirv_integer.cpp
@@ -110,8 +110,16 @@ Id EmitBitCount32(EmitContext& ctx, Id value) {
     return ctx.OpBitCount(ctx.U32[1], value);
 }
 
-Id EmitBitwiseNot32(EmitContext& ctx, Id a) {
-    return ctx.OpNot(ctx.U32[1], a);
+Id EmitBitwiseNot32(EmitContext& ctx, Id value) {
+    return ctx.OpNot(ctx.U32[1], value);
+}
+
+Id EmitFindSMsb32(EmitContext& ctx, Id value) {
+    return ctx.OpFindSMsb(ctx.U32[1], value);
+}
+
+Id EmitFindUMsb32(EmitContext& ctx, Id value) {
+    return ctx.OpFindUMsb(ctx.U32[1], value);
 }
 
 Id EmitSMin32(EmitContext& ctx, Id a, Id b) {