[llvm] r288007 - [X86] Add SHL by 1 to the load folding tables.

[Craig Topper via llvm-commits]

Author: ctopper
Date: Sun Nov 27 15:36:54 2016
New Revision: 288007

URL: http://llvm.org/viewvc/llvm-project?rev=288007&view=rev
Log:
[X86] Add SHL by 1 to the load folding tables.

I don't think isel selects these today, favoring adding the register to itself instead. But the load folding tables shouldn't be so concerned with what isel will use and just represent the relationships.

Modified:
    llvm/trunk/lib/Target/X86/X86InstrInfo.cpp

Modified: llvm/trunk/lib/Target/X86/X86InstrInfo.cpp
URL: http://llvm.org/viewvc/llvm-project/llvm/trunk/lib/Target/X86/X86InstrInfo.cpp?rev=288007&r1=288006&r2=288007&view=diff
==============================================================================
--- llvm/trunk/lib/Target/X86/X86InstrInfo.cpp (original)
+++ llvm/trunk/lib/Target/X86/X86InstrInfo.cpp Sun Nov 27 15:36:54 2016
@@ -228,12 +228,16 @@ X86InstrInfo::X86InstrInfo(X86Subtarget
     { X86::SBB64ri32,   X86::SBB64mi32,  0 },
     { X86::SBB64ri8,    X86::SBB64mi8,   0 },
     { X86::SBB64rr,     X86::SBB64mr,    0 },
+    { X86::SHL16r1,     X86::SHL16m1,    0 },
     { X86::SHL16rCL,    X86::SHL16mCL,   0 },
     { X86::SHL16ri,     X86::SHL16mi,    0 },
+    { X86::SHL32r1,     X86::SHL32m1,    0 },
     { X86::SHL32rCL,    X86::SHL32mCL,   0 },
     { X86::SHL32ri,     X86::SHL32mi,    0 },
+    { X86::SHL64r1,     X86::SHL64m1,    0 },
     { X86::SHL64rCL,    X86::SHL64mCL,   0 },
     { X86::SHL64ri,     X86::SHL64mi,    0 },
+    { X86::SHL8r1,      X86::SHL8m1,     0 },
     { X86::SHL8rCL,     X86::SHL8mCL,    0 },
     { X86::SHL8ri,      X86::SHL8mi,     0 },
     { X86::SHLD16rrCL,  X86::SHLD16mrCL, 0 },