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| author | Tim Northover <tnorthover@apple.com> | 2014-04-15 14:00:11 +0000 |
|---|---|---|
| committer | Tim Northover <tnorthover@apple.com> | 2014-04-15 14:00:11 +0000 |
| commit | 6e27b8ded54d0388a242aca4a0d648aa55f9add9 (patch) | |
| tree | 1cf2f7b8f219c743393b2ebc1bc2f4061aa295ee /llvm/lib | |
| parent | 221b583951edb9d6da21ba8caaabc247f5f622f5 (diff) | |
| download | bcm5719-llvm-6e27b8ded54d0388a242aca4a0d648aa55f9add9.tar.gz bcm5719-llvm-6e27b8ded54d0388a242aca4a0d648aa55f9add9.zip | |
AArch64/ARM64: add support for large code-model jump tables.
I've left the MachO CodeGen as it is, there's a reasonable chance it should use
the GOT like ConstPools, but I'm not certain.
llvm-svn: 206288
Diffstat (limited to 'llvm/lib')
| -rw-r--r-- | llvm/lib/Target/ARM64/ARM64ISelLowering.cpp | 11 | ||||
| -rw-r--r-- | llvm/lib/Target/ARM64/ARM64InstrInfo.td | 7 |
2 files changed, 18 insertions, 0 deletions
diff --git a/llvm/lib/Target/ARM64/ARM64ISelLowering.cpp b/llvm/lib/Target/ARM64/ARM64ISelLowering.cpp index cfb9d1e2da3..adf8abb57b5 100644 --- a/llvm/lib/Target/ARM64/ARM64ISelLowering.cpp +++ b/llvm/lib/Target/ARM64/ARM64ISelLowering.cpp @@ -3546,6 +3546,17 @@ SDValue ARM64TargetLowering::LowerJumpTable(SDValue Op, EVT PtrVT = getPointerTy(); SDLoc DL(Op); + if (getTargetMachine().getCodeModel() == CodeModel::Large && + !Subtarget->isTargetMachO()) { + const unsigned char MO_NC = ARM64II::MO_NC; + return DAG.getNode( + ARM64ISD::WrapperLarge, DL, PtrVT, + DAG.getTargetJumpTable(JT->getIndex(), PtrVT, ARM64II::MO_G3), + DAG.getTargetJumpTable(JT->getIndex(), PtrVT, ARM64II::MO_G2 | MO_NC), + DAG.getTargetJumpTable(JT->getIndex(), PtrVT, ARM64II::MO_G1 | MO_NC), + DAG.getTargetJumpTable(JT->getIndex(), PtrVT, ARM64II::MO_G0 | MO_NC)); + } + SDValue Hi = DAG.getTargetJumpTable(JT->getIndex(), PtrVT, ARM64II::MO_PAGE); SDValue Lo = DAG.getTargetJumpTable(JT->getIndex(), PtrVT, ARM64II::MO_PAGEOFF | ARM64II::MO_NC); diff --git a/llvm/lib/Target/ARM64/ARM64InstrInfo.td b/llvm/lib/Target/ARM64/ARM64InstrInfo.td index 805dbd169e2..36a94df102c 100644 --- a/llvm/lib/Target/ARM64/ARM64InstrInfo.td +++ b/llvm/lib/Target/ARM64/ARM64InstrInfo.td @@ -416,6 +416,13 @@ def : Pat<(ARM64WrapperLarge tconstpool:$g3, tconstpool:$g2, tconstpool:$g1, 16), tconstpool:$g0, 0)>; +def : Pat<(ARM64WrapperLarge tjumptable:$g3, tjumptable:$g2, + tjumptable:$g1, tjumptable:$g0), + (MOVKXi (MOVKXi (MOVKXi (MOVZXi tjumptable:$g3, 48), + tjumptable:$g2, 32), + tjumptable:$g1, 16), + tjumptable:$g0, 0)>; + //===----------------------------------------------------------------------===// // Arithmetic instructions. |
