Thumb1 had two patterns for the same load-from-constant-pool instruction.
Canonicalize on tLDRpci and remove tLDRcp.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@121920 91177308-0d34-0410-b5e6-96231b3b80d8
diff --git a/lib/Target/ARM/ARMConstantIslandPass.cpp b/lib/Target/ARM/ARMConstantIslandPass.cpp
index 8066cb7..126078a 100644
--- a/lib/Target/ARM/ARMConstantIslandPass.cpp
+++ b/lib/Target/ARM/ARMConstantIslandPass.cpp
@@ -615,7 +615,6 @@
break;
case ARM::tLDRpci:
- case ARM::tLDRcp:
Bits = 8;
Scale = 4; // +(offset_8*4)
break;
diff --git a/lib/Target/ARM/ARMISelDAGToDAG.cpp b/lib/Target/ARM/ARMISelDAGToDAG.cpp
index 3e4d72b..991814e 100644
--- a/lib/Target/ARM/ARMISelDAGToDAG.cpp
+++ b/lib/Target/ARM/ARMISelDAGToDAG.cpp
@@ -2187,7 +2187,7 @@
SDValue Pred = getAL(CurDAG);
SDValue PredReg = CurDAG->getRegister(0, MVT::i32);
SDValue Ops[] = { CPIdx, Pred, PredReg, CurDAG->getEntryNode() };
- ResNode = CurDAG->getMachineNode(ARM::tLDRcp, dl, MVT::i32, MVT::Other,
+ ResNode = CurDAG->getMachineNode(ARM::tLDRpci, dl, MVT::i32, MVT::Other,
Ops, 4);
} else {
SDValue Ops[] = {
diff --git a/lib/Target/ARM/ARMInstrThumb.td b/lib/Target/ARM/ARMInstrThumb.td
index 58c2034..2e8b46e 100644
--- a/lib/Target/ARM/ARMInstrThumb.td
+++ b/lib/Target/ARM/ARMInstrThumb.td
@@ -710,19 +710,6 @@
let Inst{7-0} = addr;
}
-// Special LDR for loads from non-pc-relative constpools.
-let canFoldAsLoad = 1, mayLoad = 1, neverHasSideEffects = 1,
- isReMaterializable = 1 in
-def tLDRcp : T1pIs<(outs tGPR:$Rt), (ins i32imm:$addr), IIC_iLoad_i,
- "ldr", "\t$Rt, $addr", []>,
- T1LdStSP<{1,?,?}> {
- // A6.2 & A8.6.57 T2
- bits<3> Rt;
- bits<8> addr;
- let Inst{10-8} = Rt;
- let Inst{7-0} = addr;
-}
-
// A8.6.194 & A8.6.192
defm tSTR : thumb_st_rr_ri_enc<0b000, 0b0110, t_addrmode_rrs4,
t_addrmode_is4, AddrModeT1_4,
diff --git a/lib/Target/ARM/Thumb1RegisterInfo.cpp b/lib/Target/ARM/Thumb1RegisterInfo.cpp
index 41a9cf3..4e77bd8 100644
--- a/lib/Target/ARM/Thumb1RegisterInfo.cpp
+++ b/lib/Target/ARM/Thumb1RegisterInfo.cpp
@@ -63,7 +63,7 @@
Type::getInt32Ty(MBB.getParent()->getFunction()->getContext()), Val);
unsigned Idx = ConstantPool->getConstantPoolIndex(C, 4);
- BuildMI(MBB, MBBI, dl, TII.get(ARM::tLDRcp))
+ BuildMI(MBB, MBBI, dl, TII.get(ARM::tLDRpci))
.addReg(DestReg, getDefRegState(true), SubIdx)
.addConstantPoolIndex(Idx).addImm(Pred).addReg(PredReg);
}