Remove (somewhat confusing) Imp<> helper, use let Defs = [], Uses = [] instead.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@41863 91177308-0d34-0410-b5e6-96231b3b80d8
diff --git a/lib/Target/PowerPC/PPCInstr64Bit.td b/lib/Target/PowerPC/PPCInstr64Bit.td
index f55ce6c..9d728cf 100644
--- a/lib/Target/PowerPC/PPCInstr64Bit.td
+++ b/lib/Target/PowerPC/PPCInstr64Bit.td
@@ -130,11 +130,11 @@
              PPC970_DGroup_First, PPC970_Unit_FXU;
 }
 
+let Defs = [X1], Uses = [X1] in
 def DYNALLOC8 : Pseudo<(outs G8RC:$result), (ins G8RC:$negsize, memri:$fpsi),
                        "${:comment} DYNALLOC8 $result, $negsize, $fpsi",
                        [(set G8RC:$result,
-                             (PPCdynalloc G8RC:$negsize, iaddr:$fpsi))]>,
-                        Imp<[X1],[X1]>;
+                             (PPCdynalloc G8RC:$negsize, iaddr:$fpsi))]>;
 
 def MTLR8  : XFXForm_7_ext<31, 467, 8, (outs), (ins G8RC:$rS),
                            "mtlr $rS", SprMTSPR>,
diff --git a/lib/Target/PowerPC/PPCInstrInfo.td b/lib/Target/PowerPC/PPCInstrInfo.td
index 9813c96..1591148 100644
--- a/lib/Target/PowerPC/PPCInstrInfo.td
+++ b/lib/Target/PowerPC/PPCInstrInfo.td
@@ -297,22 +297,24 @@
 // Pseudo-instructions:
 
 let hasCtrlDep = 1 in {
+let Defs = [R1], Uses = [R1] in {
 def ADJCALLSTACKDOWN : Pseudo<(outs), (ins u16imm:$amt),
                               "${:comment} ADJCALLSTACKDOWN",
-                              [(callseq_start imm:$amt)]>, Imp<[R1],[R1]>;
+                              [(callseq_start imm:$amt)]>;
 def ADJCALLSTACKUP   : Pseudo<(outs), (ins u16imm:$amt),
                               "${:comment} ADJCALLSTACKUP",
-                              [(callseq_end imm:$amt)]>, Imp<[R1],[R1]>;
+                              [(callseq_end imm:$amt)]>;
+}
 
 def UPDATE_VRSAVE    : Pseudo<(outs GPRC:$rD), (ins GPRC:$rS),
                               "UPDATE_VRSAVE $rD, $rS", []>;
 }
 
+let Defs = [R1], Uses = [R1] in
 def DYNALLOC : Pseudo<(outs GPRC:$result), (ins GPRC:$negsize, memri:$fpsi),
                        "${:comment} DYNALLOC $result, $negsize, $fpsi",
                        [(set GPRC:$result,
-                             (PPCdynalloc GPRC:$negsize, iaddr:$fpsi))]>,
-                        Imp<[R1],[R1]>;
+                             (PPCdynalloc GPRC:$negsize, iaddr:$fpsi))]>;
                          
 def IMPLICIT_DEF_GPRC: Pseudo<(outs GPRC:$rD), (ins),
                               "${:comment}IMPLICIT_DEF_GPRC $rD",