[Mesa-dev] [PATCH 6/9] ac: add imad & fmad helpers

[Marek Olšák]

From: Marek Olšák <marek.olsak at amd.com>

---
 src/amd/common/ac_llvm_build.c | 14 ++++++++++++++
 src/amd/common/ac_llvm_build.h |  4 ++++
 2 files changed, 18 insertions(+)

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
@@ -1962,20 +1962,34 @@ LLVMValueRef ac_build_bfe(struct ac_llvm_context *ctx, LLVMValueRef input,
 		width,
 	};
 
 	return ac_build_intrinsic(ctx,
 				  is_signed ? "llvm.amdgcn.sbfe.i32" :
 					      "llvm.amdgcn.ubfe.i32",
 				  ctx->i32, args, 3,
 				  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] = {
 		LLVMConstInt(ctx->i32, simm16, false),
 	};
 	ac_build_intrinsic(ctx, "llvm.amdgcn.s.waitcnt",
 			   ctx->voidt, args, 1, 0);
 }
 
 LLVMValueRef ac_build_fract(struct ac_llvm_context *ctx, LLVMValueRef src0,
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
@@ -391,20 +391,24 @@ LLVMValueRef ac_build_cvt_pknorm_u16(struct ac_llvm_context *ctx,
 				     LLVMValueRef args[2]);
 LLVMValueRef ac_build_cvt_pk_i16(struct ac_llvm_context *ctx,
 				 LLVMValueRef args[2], unsigned bits, bool hi);
 LLVMValueRef ac_build_cvt_pk_u16(struct ac_llvm_context *ctx,
 				 LLVMValueRef args[2], unsigned bits, bool hi);
 LLVMValueRef ac_build_wqm_vote(struct ac_llvm_context *ctx, LLVMValueRef i1);
 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);
 
 LLVMValueRef ac_build_fract(struct ac_llvm_context *ctx, LLVMValueRef src0,
 			   unsigned bitsize);
 
 LLVMValueRef ac_build_isign(struct ac_llvm_context *ctx, LLVMValueRef src0,
 			    unsigned bitsize);
 
 LLVMValueRef ac_build_fsign(struct ac_llvm_context *ctx, LLVMValueRef src0,
-- 
2.17.1