ac: add imad & fmad helpers

Reviewed-by: Samuel Pitoiset <[email protected]>

2 files changed, 18 insertions, 0 deletions

diff --git a/src/amd/common/ac_llvm_build.c b/src/amd/common/ac_llvm_build.c
index c89bdf49faf..6d5bfb1a1be 100644
--- 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] = {
diff --git a/src/amd/common/ac_llvm_build.h b/src/amd/common/ac_llvm_build.h
index 84212f0d459..d11a6ebb1be 100644
--- a/src/amd/common/ac_llvm_build.h
+++ b/src/amd/common/ac_llvm_build.h
@@ -398,6 +398,10 @@ void ac_build_kill_if_false(struct ac_llvm_context *ctx, LLVMValueRef i1);
 LLVMValueRef ac_build_bfe(struct ac_llvm_context *ctx, LLVMValueRef input,
 			  LLVMValueRef offset, LLVMValueRef width,
 			  bool is_signed);
+LLVMValueRef ac_build_imad(struct ac_llvm_context *ctx, LLVMValueRef s0,
+			   LLVMValueRef s1, LLVMValueRef s2);
+LLVMValueRef ac_build_fmad(struct ac_llvm_context *ctx, LLVMValueRef s0,
+			   LLVMValueRef s1, LLVMValueRef s2);
 
 void ac_build_waitcnt(struct ac_llvm_context *ctx, unsigned simm16);