From: George Kyriazis <george.kyriazis@intel.com>
Date: Fri, 2 Mar 2018 06:54:38 +0000 (-0600)
Subject: swr/rast: Add VPOPCNT
X-Git-Url: https://git.libre-soc.org/?a=commitdiff_plain;h=e0a4a258297b12cb5c6ee4bb57d4372ecf85367e;p=mesa.git

swr/rast: Add VPOPCNT

Supports popcnt on vector masks (e.g. <8 x i1>)

Reviewed-by: Bruce Cherniak <bruce.cherniak@intel.com>
---

diff --git a/src/gallium/drivers/swr/rasterizer/jitter/builder_misc.cpp b/src/gallium/drivers/swr/rasterizer/jitter/builder_misc.cpp
index 0738d023321..0148d8eb8ac 100644
--- a/src/gallium/drivers/swr/rasterizer/jitter/builder_misc.cpp
+++ b/src/gallium/drivers/swr/rasterizer/jitter/builder_misc.cpp
@@ -835,6 +835,14 @@ namespace SwrJit
         return CALL(pCtPop, std::initializer_list<Value*>{a});
     }
 
+    //////////////////////////////////////////////////////////////////////////
+    /// @brief pop count on vector mask (e.g. <8 x i1>)
+    Value* Builder::VPOPCNT(Value* a)
+    {
+        Value* b = BITCAST(VMASK(a), mSimdFP32Ty);
+        return POPCNT(VMOVMSKPS(b));
+    }
+
     //////////////////////////////////////////////////////////////////////////
     /// @brief C functions called by LLVM IR
     //////////////////////////////////////////////////////////////////////////
diff --git a/src/gallium/drivers/swr/rasterizer/jitter/builder_misc.h b/src/gallium/drivers/swr/rasterizer/jitter/builder_misc.h
index 50d7a1e71fa..5195678b4c4 100644
--- a/src/gallium/drivers/swr/rasterizer/jitter/builder_misc.h
+++ b/src/gallium/drivers/swr/rasterizer/jitter/builder_misc.h
@@ -148,6 +148,7 @@ CallInst *PRINT(const std::string &printStr);
 CallInst *PRINT(const std::string &printStr,const std::initializer_list<Value*> &printArgs);
 
 Value* POPCNT(Value* a);
+Value* VPOPCNT(Value* a);
 
 Value* DEBUGTRAP();
 Value* INT3() { return DEBUGTRAP(); }