ac: add imad & fmad helpers

[mesa.git] / src / amd / common / ac_llvm_build.c

diff --git a/src/amd/common/ac_llvm_build.c b/src/amd/common/ac_llvm_build.c
index c89bdf49faf5ea6b5d982f7df0286af3b44c4147..6d5bfb1a1be9ec02bae223aff35e09e073d038ea 100644 (file)
--- a/src/amd/common/ac_llvm_build.c
+++ b/src/amd/common/ac_llvm_build.c
@@ -1969,6 +1969,20 @@ LLVMValueRef ac_build_bfe(struct ac_llvm_context *ctx, LLVMValueRef input,
                                  AC_FUNC_ATTR_READNONE);
 }
 
+LLVMValueRef ac_build_imad(struct ac_llvm_context *ctx, LLVMValueRef s0,
+                          LLVMValueRef s1, LLVMValueRef s2)
+{
+       return LLVMBuildAdd(ctx->builder,
+                           LLVMBuildMul(ctx->builder, s0, s1, ""), s2, "");
+}
+
+LLVMValueRef ac_build_fmad(struct ac_llvm_context *ctx, LLVMValueRef s0,
+                          LLVMValueRef s1, LLVMValueRef s2)
+{
+       return LLVMBuildFAdd(ctx->builder,
+                            LLVMBuildFMul(ctx->builder, s0, s1, ""), s2, "");
+}
+
 void ac_build_waitcnt(struct ac_llvm_context *ctx, unsigned simm16)
 {
        LLVMValueRef args[1] = {