[Mesa-dev] [PATCH 7/9] swr/rast: Add VPOPCNT

[George Kyriazis]

Supports popcnt on vector masks (e.g. <8 x i1>)
---
 src/gallium/drivers/swr/rasterizer/jitter/builder_misc.cpp | 8 ++++++++
 src/gallium/drivers/swr/rasterizer/jitter/builder_misc.h   | 1 +
 2 files changed, 9 insertions(+)

diff --git a/src/gallium/drivers/swr/rasterizer/jitter/builder_misc.cpp b/src/gallium/drivers/swr/rasterizer/jitter/builder_misc.cpp
index 0738d02..0148d8e 100644
--- a/src/gallium/drivers/swr/rasterizer/jitter/builder_misc.cpp
+++ b/src/gallium/drivers/swr/rasterizer/jitter/builder_misc.cpp
@@ -836,6 +836,14 @@ namespace SwrJit
     }
 
     //////////////////////////////////////////////////////////////////////////
+    /// @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 50d7a1e..5195678 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(); }
-- 
2.7.4