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author | Richard Osborne <richard@xmos.com> | 2009-11-18 23:20:42 +0000 |
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committer | Richard Osborne <richard@xmos.com> | 2009-11-18 23:20:42 +0000 |
commit | bea7df56ce7f4a5e1c65770c33fbf6dd39afd1df (patch) | |
tree | fde0896fceae6b5fc173a389eac0ed47f8b690d5 | |
parent | 74f2ca8c4aa28cbb36c950b11416263eb6315593 (diff) | |
download | llvm-bea7df56ce7f4a5e1c65770c33fbf6dd39afd1df.tar.gz llvm-bea7df56ce7f4a5e1c65770c33fbf6dd39afd1df.tar.bz2 llvm-bea7df56ce7f4a5e1c65770c33fbf6dd39afd1df.tar.xz |
Add XCore support for indirectbr / blockaddress.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@89273 91177308-0d34-0410-b5e6-96231b3b80d8
-rw-r--r-- | lib/Target/XCore/AsmPrinter/XCoreAsmPrinter.cpp | 2 | ||||
-rw-r--r-- | lib/Target/XCore/XCoreISelLowering.cpp | 15 | ||||
-rw-r--r-- | lib/Target/XCore/XCoreISelLowering.h | 1 | ||||
-rw-r--r-- | lib/Target/XCore/XCoreInstrInfo.td | 6 | ||||
-rw-r--r-- | test/CodeGen/XCore/indirectbr.ll | 45 |
5 files changed, 68 insertions, 1 deletions
diff --git a/lib/Target/XCore/AsmPrinter/XCoreAsmPrinter.cpp b/lib/Target/XCore/AsmPrinter/XCoreAsmPrinter.cpp index d7106a0283..2a561c633b 100644 --- a/lib/Target/XCore/AsmPrinter/XCoreAsmPrinter.cpp +++ b/lib/Target/XCore/AsmPrinter/XCoreAsmPrinter.cpp @@ -333,6 +333,8 @@ void XCoreAsmPrinter::printOperand(const MachineInstr *MI, int opNum) { case MachineOperand::MO_JumpTableIndex: O << MAI->getPrivateGlobalPrefix() << "JTI" << getFunctionNumber() << '_' << MO.getIndex(); + case MachineOperand::MO_BlockAddress: + GetBlockAddressSymbol(MO.getBlockAddress())->print(O, MAI); break; default: llvm_unreachable("not implemented"); diff --git a/lib/Target/XCore/XCoreISelLowering.cpp b/lib/Target/XCore/XCoreISelLowering.cpp index 16e68fe7b2..00dcce653e 100644 --- a/lib/Target/XCore/XCoreISelLowering.cpp +++ b/lib/Target/XCore/XCoreISelLowering.cpp @@ -111,7 +111,8 @@ XCoreTargetLowering::XCoreTargetLowering(XCoreTargetMachine &XTM) setOperationAction(ISD::JumpTable, MVT::i32, Custom); setOperationAction(ISD::GlobalAddress, MVT::i32, Custom); - + setOperationAction(ISD::BlockAddress, MVT::i32 , Custom); + // Thread Local Storage setOperationAction(ISD::GlobalTLSAddress, MVT::i32, Custom); @@ -158,6 +159,7 @@ LowerOperation(SDValue Op, SelectionDAG &DAG) { { case ISD::GlobalAddress: return LowerGlobalAddress(Op, DAG); case ISD::GlobalTLSAddress: return LowerGlobalTLSAddress(Op, DAG); + case ISD::BlockAddress: return LowerBlockAddress(Op, DAG); case ISD::ConstantPool: return LowerConstantPool(Op, DAG); case ISD::JumpTable: return LowerJumpTable(Op, DAG); case ISD::LOAD: return LowerLOAD(Op, DAG); @@ -288,6 +290,17 @@ LowerGlobalTLSAddress(SDValue Op, SelectionDAG &DAG) } SDValue XCoreTargetLowering:: +LowerBlockAddress(SDValue Op, SelectionDAG &DAG) +{ + DebugLoc DL = Op.getDebugLoc(); + + BlockAddress *BA = cast<BlockAddressSDNode>(Op)->getBlockAddress(); + SDValue Result = DAG.getBlockAddress(BA, DL, /*isTarget=*/true); + + return DAG.getNode(XCoreISD::PCRelativeWrapper, DL, getPointerTy(), Result); +} + +SDValue XCoreTargetLowering:: LowerConstantPool(SDValue Op, SelectionDAG &DAG) { ConstantPoolSDNode *CP = cast<ConstantPoolSDNode>(Op); diff --git a/lib/Target/XCore/XCoreISelLowering.h b/lib/Target/XCore/XCoreISelLowering.h index 10631afb02..f86be5ea78 100644 --- a/lib/Target/XCore/XCoreISelLowering.h +++ b/lib/Target/XCore/XCoreISelLowering.h @@ -120,6 +120,7 @@ namespace llvm { SDValue LowerSTORE(SDValue Op, SelectionDAG &DAG); SDValue LowerGlobalAddress(SDValue Op, SelectionDAG &DAG); SDValue LowerGlobalTLSAddress(SDValue Op, SelectionDAG &DAG); + SDValue LowerBlockAddress(SDValue Op, SelectionDAG &DAG); SDValue LowerConstantPool(SDValue Op, SelectionDAG &DAG); SDValue LowerJumpTable(SDValue Op, SelectionDAG &DAG); SDValue LowerSELECT_CC(SDValue Op, SelectionDAG &DAG); diff --git a/lib/Target/XCore/XCoreInstrInfo.td b/lib/Target/XCore/XCoreInstrInfo.td index 4ed4ed4499..d4ae49e469 100644 --- a/lib/Target/XCore/XCoreInstrInfo.td +++ b/lib/Target/XCore/XCoreInstrInfo.td @@ -679,6 +679,12 @@ def LDAP_lu10 : _FLU10< "ldap r11, $addr", [(set R11, (pcrelwrapper tglobaladdr:$addr))]>; +let Defs = [R11], isReMaterializable = 1 in +def LDAP_lu10_ba : _FLU10<(outs), + (ins i32imm:$addr), + "ldap r11, $addr", + [(set R11, (pcrelwrapper tblockaddress:$addr))]>; + let isCall=1, // All calls clobber the the link register and the non-callee-saved registers: Defs = [R0, R1, R2, R3, R11, LR] in { diff --git a/test/CodeGen/XCore/indirectbr.ll b/test/CodeGen/XCore/indirectbr.ll new file mode 100644 index 0000000000..a8f00cc497 --- /dev/null +++ b/test/CodeGen/XCore/indirectbr.ll @@ -0,0 +1,45 @@ +; RUN: llc < %s -march=xcore | FileCheck %s + +@nextaddr = global i8* null ; <i8**> [#uses=2] +@C.0.2070 = private constant [5 x i8*] [i8* blockaddress(@foo, %L1), i8* blockaddress(@foo, %L2), i8* blockaddress(@foo, %L3), i8* blockaddress(@foo, %L4), i8* blockaddress(@foo, %L5)] ; <[5 x i8*]*> [#uses=1] + +define internal i32 @foo(i32 %i) nounwind { +; CHECK: foo: +entry: + %0 = load i8** @nextaddr, align 4 ; <i8*> [#uses=2] + %1 = icmp eq i8* %0, null ; <i1> [#uses=1] + br i1 %1, label %bb3, label %bb2 + +bb2: ; preds = %entry, %bb3 + %gotovar.4.0 = phi i8* [ %gotovar.4.0.pre, %bb3 ], [ %0, %entry ] ; <i8*> [#uses=1] +; CHECK: bau + indirectbr i8* %gotovar.4.0, [label %L5, label %L4, label %L3, label %L2, label %L1] + +bb3: ; preds = %entry + %2 = getelementptr inbounds [5 x i8*]* @C.0.2070, i32 0, i32 %i ; <i8**> [#uses=1] + %gotovar.4.0.pre = load i8** %2, align 4 ; <i8*> [#uses=1] + br label %bb2 + +L5: ; preds = %bb2 + br label %L4 + +L4: ; preds = %L5, %bb2 + %res.0 = phi i32 [ 385, %L5 ], [ 35, %bb2 ] ; <i32> [#uses=1] + br label %L3 + +L3: ; preds = %L4, %bb2 + %res.1 = phi i32 [ %res.0, %L4 ], [ 5, %bb2 ] ; <i32> [#uses=1] + br label %L2 + +L2: ; preds = %L3, %bb2 + %res.2 = phi i32 [ %res.1, %L3 ], [ 1, %bb2 ] ; <i32> [#uses=1] + %phitmp = mul i32 %res.2, 6 ; <i32> [#uses=1] + br label %L1 + +L1: ; preds = %L2, %bb2 + %res.3 = phi i32 [ %phitmp, %L2 ], [ 2, %bb2 ] ; <i32> [#uses=1] +; CHECK: ldap r11, .LBA3_foo_L5 +; CHECK: stw r11, dp[nextaddr] + store i8* blockaddress(@foo, %L5), i8** @nextaddr, align 4 + ret i32 %res.3 +} |