generate address of constant pool entries

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@22298 91177308-0d34-0410-b5e6-96231b3b80d8

diff --git a/lib/Target/Alpha/AlphaISelPattern.cpp b/lib/Target/Alpha/AlphaISelPattern.cpp
index bdd7c5d095bf071aabdadaabae0d2be47703f8de..6d2cfc63f1c9063fa2bbe6d31099b1f82fcadcc3 100644 (file)
--- a/lib/Target/Alpha/AlphaISelPattern.cpp
+++ b/lib/Target/Alpha/AlphaISelPattern.cpp
@@ -1520,11 +1520,15 @@ unsigned AlphaISel::SelectExpr(SDOperand N) {
     BuildMI(BB, Alpha::BIS, 2, Result).addReg(Alpha::R30).addReg(Alpha::R30);
     return Result;
 
-//   case ISD::ConstantPool:
-//     Tmp1 = cast<ConstantPoolSDNode>(N)->getIndex();
-//     AlphaLowering.restoreGP(BB);
-//     BuildMI(BB, Alpha::LDQ_SYM, 1, Result).addConstantPoolIndex(Tmp1);
-//     return Result;
+  case ISD::ConstantPool:
+    Tmp1 = cast<ConstantPoolSDNode>(N)->getIndex();
+    AlphaLowering.restoreGP(BB);
+    Tmp2 = MakeReg(MVT::i64);
+    BuildMI(BB, Alpha::LDAHr, 2, Tmp2).addConstantPoolIndex(Tmp1)
+      .addReg(Alpha::R29);
+    BuildMI(BB, Alpha::LDAr, 2, Result).addConstantPoolIndex(Tmp1)
+      .addReg(Tmp2);
+    return Result;
 
   case ISD::FrameIndex:
     BuildMI(BB, Alpha::LDA, 2, Result)

diff --git a/lib/Target/Alpha/AlphaInstrInfo.td b/lib/Target/Alpha/AlphaInstrInfo.td
index 16474996dbdd2d5a1d7ae502a03d3f8ae223972e..d660bada06cefce349f2d5e785f631d945cc1608 100644 (file)
--- a/lib/Target/Alpha/AlphaInstrInfo.td
+++ b/lib/Target/Alpha/AlphaInstrInfo.td
@@ -369,6 +369,7 @@ def LDSr : MForm<0x22, (ops FPRC:$RA, s16imm:$DISP, GPRC:$RB), "lds $RA,$DISP($R
 def LDTr : MForm<0x23, (ops FPRC:$RA, s16imm:$DISP, GPRC:$RB), "ldt $RA,$DISP($RB) !gprellow">; //Load T_floating
 
 //Load address, rellocated form
+def LDAr : MForm<0x08, (ops GPRC:$RA, s16imm:$DISP, GPRC:$RB), "lda $RA,$DISP($RB) !gprellow">;  //Load address
 def LDAHr : MForm<0x08, (ops GPRC:$RA, s16imm:$DISP, GPRC:$RB), "ldah $RA,$DISP($RB) !gprelhigh">;  //Load address high