[Beignet] [PATCH 1/2] GBE: Fix kernel argument size for vector3

[Ruiling Song]

per OpenCL Spec 1.2, see 6.1.5 Alignment of Types.
For 3-component vector data types, the size of the data type
is 4 * sizeof(component).

Signed-off-by: Ruiling Song <ruiling.song at intel.com>
---
 backend/src/llvm/llvm_gen_backend.cpp |    2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/backend/src/llvm/llvm_gen_backend.cpp b/backend/src/llvm/llvm_gen_backend.cpp
index bb2c1dd..b1b9382 100644
--- a/backend/src/llvm/llvm_gen_backend.cpp
+++ b/backend/src/llvm/llvm_gen_backend.cpp
@@ -1399,7 +1399,7 @@ namespace gbe
           const uint32_t elemSize = getTypeByteSize(unit, elemType);
           const uint32_t elemNum = vectorType->getNumElements();
           //vector's elemType always scalar type
-          ctx.input(argName, ir::FunctionArgument::VALUE, reg, llvmInfo, elemNum*elemSize, getAlignmentByte(unit, type), 0);
+          ctx.input(argName, ir::FunctionArgument::VALUE, reg, llvmInfo, getTypeByteSize(unit, type), getAlignmentByte(unit, type), 0);
 
           ir::Function& fn = ctx.getFunction();
           for(uint32_t i=1; i < elemNum; i++) {
-- 
1.7.10.4