fix a long standing wart: all the ComplexPattern's were being

passed the root of the match, even though only a few patterns
actually needed this (one in X86, several in ARM [which should
be refactored anyway], and some in CellSPU that I don't feel 
like detangling).   Instead of requiring all ComplexPatterns to
take the dead root, have targets opt into getting the root by
putting SDNPWantRoot on the ComplexPattern.

llvm-svn: 114471

1 files changed, 8 insertions, 4 deletions

diff --git a/llvm/lib/Target/CellSPU/SPUOperands.td b/llvm/lib/Target/CellSPU/SPUOperands.td
index e1a0358abc4..3c8b3c3442f 100644
--- a/llvm/lib/Target/CellSPU/SPUOperands.td
+++ b/llvm/lib/Target/CellSPU/SPUOperands.td
@@ -654,7 +654,11 @@ def memrr : Operand<iPTR> {
 // A-form   : abs     (256K LSA offset)
 // D-form(2): [r+I7]  (7-bit signed offset + reg)
 
-def dform_addr   : ComplexPattern<iPTR, 2, "SelectDFormAddr",     [], []>;
-def xform_addr   : ComplexPattern<iPTR, 2, "SelectXFormAddr",     [], []>;
-def aform_addr   : ComplexPattern<iPTR, 2, "SelectAFormAddr",     [], []>;
-def dform2_addr  : ComplexPattern<iPTR, 2, "SelectDForm2Addr",    [], []>;
+def dform_addr   : ComplexPattern<iPTR, 2, "SelectDFormAddr",
+                                  [], [SDNPWantRoot]>;
+def xform_addr   : ComplexPattern<iPTR, 2, "SelectXFormAddr",
+                                  [], [SDNPWantRoot]>;
+def aform_addr   : ComplexPattern<iPTR, 2, "SelectAFormAddr",
+                                  [], [SDNPWantRoot]>;
+def dform2_addr  : ComplexPattern<iPTR, 2, "SelectDForm2Addr",
+                                  [], [SDNPWantRoot]>;