[llvm-branch-commits] [llvm-branch] r165966 - /llvm/branches/R600/lib/Target/AMDGPU/R600Instructions.td

[Tom Stellard]

Author: tstellar
Date: Mon Oct 15 15:53:39 2012
New Revision: 165966

URL: http://llvm.org/viewvc/llvm-project?rev=165966&view=rev
Log:
R600: add a pattern for fsqrt

Patch by: Vincent Lejeune

Reviewed-by: Tom Stellard <thomas.stellard at amd.com>

Modified:
    llvm/branches/R600/lib/Target/AMDGPU/R600Instructions.td

Modified: llvm/branches/R600/lib/Target/AMDGPU/R600Instructions.td
URL: http://llvm.org/viewvc/llvm-project/llvm/branches/R600/lib/Target/AMDGPU/R600Instructions.td?rev=165966&r1=165965&r2=165966&view=diff
==============================================================================
--- llvm/branches/R600/lib/Target/AMDGPU/R600Instructions.td (original)
+++ llvm/branches/R600/lib/Target/AMDGPU/R600Instructions.td Mon Oct 15 15:53:39 2012
@@ -1038,6 +1038,9 @@
   def : Pat<(fp_to_uint R600_Reg32:$src),
     (FLT_TO_UINT_eg (TRUNC R600_Reg32:$src))>;
 
+  def : Pat<(fsqrt R600_Reg32:$src),
+    (MUL R600_Reg32:$src, (RECIPSQRT_CLAMPED_eg R600_Reg32:$src))>;
+
 //===----------------------------------------------------------------------===//
 // Memory read/write instructions
 //===----------------------------------------------------------------------===//