[Mesa-dev] [PATCH] R600/SI: Add patterns for V_MAD(_LEGACY) instructions.

[Michel Dänzer]

From: Michel Dänzer <michel.daenzer at amd.com>


Signed-off-by: Michel Dänzer <michel.daenzer at amd.com>
---
 lib/Target/R600/SIInstructions.td |   10 ++++++++++
 1 file changed, 10 insertions(+)

diff --git a/lib/Target/R600/SIInstructions.td b/lib/Target/R600/SIInstructions.td
index 4164c55..01b61f7 100644
--- a/lib/Target/R600/SIInstructions.td
+++ b/lib/Target/R600/SIInstructions.td
@@ -1316,6 +1316,16 @@ def : Pat <
 def : POW_Common <V_LOG_F32_e32, V_EXP_F32_e32, V_MUL_F32_e32, VReg_32>;
 
 def : Pat <
+  (fadd (int_AMDGPU_mul AllReg_32:$src0, VReg_32:$src1), VReg_32:$src2),
+  (V_MAD_LEGACY_F32 AllReg_32:$src0, VReg_32:$src1, VReg_32:$src2, 0, 0, 0, 0)
+>;
+
+def : Pat <
+  (fadd (fmul AllReg_32:$src0, VReg_32:$src1), VReg_32:$src2),
+  (V_MAD_F32 AllReg_32:$src0, VReg_32:$src1, VReg_32:$src2, 0, 0, 0, 0)
+>;
+
+def : Pat <
   (int_AMDGPU_div AllReg_32:$src0, AllReg_32:$src1),
   (V_MUL_LEGACY_F32_e32 AllReg_32:$src0, (V_RCP_LEGACY_F32_e32 AllReg_32:$src1))
 >;
-- 
1.7.10.4