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-rw-r--r--src/gallium/drivers/llvmpipe/lp_bld_swizzle.c19
-rw-r--r--src/gallium/drivers/llvmpipe/lp_bld_swizzle.h6
2 files changed, 25 insertions, 0 deletions
diff --git a/src/gallium/drivers/llvmpipe/lp_bld_swizzle.c b/src/gallium/drivers/llvmpipe/lp_bld_swizzle.c
index 3402d4f5d94..5204a851d61 100644
--- a/src/gallium/drivers/llvmpipe/lp_bld_swizzle.c
+++ b/src/gallium/drivers/llvmpipe/lp_bld_swizzle.c
@@ -35,6 +35,25 @@
LLVMValueRef
+lp_build_broadcast(LLVMBuilderRef builder,
+ LLVMTypeRef vec_type,
+ LLVMValueRef scalar)
+{
+ const unsigned n = LLVMGetVectorSize(vec_type);
+ LLVMValueRef res;
+ unsigned i;
+
+ res = LLVMGetUndef(vec_type);
+ for(i = 0; i < n; ++i) {
+ LLVMValueRef index = LLVMConstInt(LLVMInt32Type(), i, 0);
+ res = LLVMBuildInsertElement(builder, res, scalar, index, "");
+ }
+
+ return res;
+}
+
+
+LLVMValueRef
lp_build_broadcast_scalar(struct lp_build_context *bld,
LLVMValueRef scalar)
{
diff --git a/src/gallium/drivers/llvmpipe/lp_bld_swizzle.h b/src/gallium/drivers/llvmpipe/lp_bld_swizzle.h
index ceaaabf9ecf..7a4aa883824 100644
--- a/src/gallium/drivers/llvmpipe/lp_bld_swizzle.h
+++ b/src/gallium/drivers/llvmpipe/lp_bld_swizzle.h
@@ -45,6 +45,12 @@ struct lp_build_context;
LLVMValueRef
+lp_build_broadcast(LLVMBuilderRef builder,
+ LLVMTypeRef vec_type,
+ LLVMValueRef scalar);
+
+
+LLVMValueRef
lp_build_broadcast_scalar(struct lp_build_context *bld,
LLVMValueRef scalar);