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author | Jakob Stoklund Olesen <stoklund@2pi.dk> | 2012-10-26 20:38:19 +0000 |
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committer | Jakob Stoklund Olesen <stoklund@2pi.dk> | 2012-10-26 20:38:19 +0000 |
commit | f4a5a613faa1a0eca6b884a6dfe83e8b1eb957b2 (patch) | |
tree | 0469cc4949de88c6550c45ef38c74cc7138cf035 /lib/Target/ARM/ARMBaseRegisterInfo.cpp | |
parent | b8b3f6081f8dc409e7281e1597d8d94e50e4b028 (diff) | |
download | external_llvm-f4a5a613faa1a0eca6b884a6dfe83e8b1eb957b2.zip external_llvm-f4a5a613faa1a0eca6b884a6dfe83e8b1eb957b2.tar.gz external_llvm-f4a5a613faa1a0eca6b884a6dfe83e8b1eb957b2.tar.bz2 |
Remove the canCombineSubRegIndices() target hook.
The new coalescer can already do all of this, so there is no need to
duplicate the efforts.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@166813 91177308-0d34-0410-b5e6-96231b3b80d8
Diffstat (limited to 'lib/Target/ARM/ARMBaseRegisterInfo.cpp')
-rw-r--r-- | lib/Target/ARM/ARMBaseRegisterInfo.cpp | 116 |
1 files changed, 0 insertions, 116 deletions
diff --git a/lib/Target/ARM/ARMBaseRegisterInfo.cpp b/lib/Target/ARM/ARMBaseRegisterInfo.cpp index ed17eb4..68e7ce5 100644 --- a/lib/Target/ARM/ARMBaseRegisterInfo.cpp +++ b/lib/Target/ARM/ARMBaseRegisterInfo.cpp @@ -134,122 +134,6 @@ bool ARMBaseRegisterInfo::isReservedReg(const MachineFunction &MF, return false; } -bool -ARMBaseRegisterInfo::canCombineSubRegIndices(const TargetRegisterClass *RC, - SmallVectorImpl<unsigned> &SubIndices, - unsigned &NewSubIdx) const { - - unsigned Size = RC->getSize() * 8; - if (Size < 6) - return 0; - - NewSubIdx = 0; // Whole register. - unsigned NumRegs = SubIndices.size(); - if (NumRegs == 8) { - // 8 D registers -> 1 QQQQ register. - return (Size == 512 && - SubIndices[0] == ARM::dsub_0 && - SubIndices[1] == ARM::dsub_1 && - SubIndices[2] == ARM::dsub_2 && - SubIndices[3] == ARM::dsub_3 && - SubIndices[4] == ARM::dsub_4 && - SubIndices[5] == ARM::dsub_5 && - SubIndices[6] == ARM::dsub_6 && - SubIndices[7] == ARM::dsub_7); - } else if (NumRegs == 4) { - if (SubIndices[0] == ARM::qsub_0) { - // 4 Q registers -> 1 QQQQ register. - return (Size == 512 && - SubIndices[1] == ARM::qsub_1 && - SubIndices[2] == ARM::qsub_2 && - SubIndices[3] == ARM::qsub_3); - } else if (SubIndices[0] == ARM::dsub_0) { - // 4 D registers -> 1 QQ register. - if (Size >= 256 && - SubIndices[1] == ARM::dsub_1 && - SubIndices[2] == ARM::dsub_2 && - SubIndices[3] == ARM::dsub_3) { - if (Size == 512) - NewSubIdx = ARM::qqsub_0; - return true; - } - } else if (SubIndices[0] == ARM::dsub_4) { - // 4 D registers -> 1 QQ register (2nd). - if (Size == 512 && - SubIndices[1] == ARM::dsub_5 && - SubIndices[2] == ARM::dsub_6 && - SubIndices[3] == ARM::dsub_7) { - NewSubIdx = ARM::qqsub_1; - return true; - } - } else if (SubIndices[0] == ARM::ssub_0) { - // 4 S registers -> 1 Q register. - if (Size >= 128 && - SubIndices[1] == ARM::ssub_1 && - SubIndices[2] == ARM::ssub_2 && - SubIndices[3] == ARM::ssub_3) { - if (Size >= 256) - NewSubIdx = ARM::qsub_0; - return true; - } - } - } else if (NumRegs == 2) { - if (SubIndices[0] == ARM::qsub_0) { - // 2 Q registers -> 1 QQ register. - if (Size >= 256 && SubIndices[1] == ARM::qsub_1) { - if (Size == 512) - NewSubIdx = ARM::qqsub_0; - return true; - } - } else if (SubIndices[0] == ARM::qsub_2) { - // 2 Q registers -> 1 QQ register (2nd). - if (Size == 512 && SubIndices[1] == ARM::qsub_3) { - NewSubIdx = ARM::qqsub_1; - return true; - } - } else if (SubIndices[0] == ARM::dsub_0) { - // 2 D registers -> 1 Q register. - if (Size >= 128 && SubIndices[1] == ARM::dsub_1) { - if (Size >= 256) - NewSubIdx = ARM::qsub_0; - return true; - } - } else if (SubIndices[0] == ARM::dsub_2) { - // 2 D registers -> 1 Q register (2nd). - if (Size >= 256 && SubIndices[1] == ARM::dsub_3) { - NewSubIdx = ARM::qsub_1; - return true; - } - } else if (SubIndices[0] == ARM::dsub_4) { - // 2 D registers -> 1 Q register (3rd). - if (Size == 512 && SubIndices[1] == ARM::dsub_5) { - NewSubIdx = ARM::qsub_2; - return true; - } - } else if (SubIndices[0] == ARM::dsub_6) { - // 2 D registers -> 1 Q register (3rd). - if (Size == 512 && SubIndices[1] == ARM::dsub_7) { - NewSubIdx = ARM::qsub_3; - return true; - } - } else if (SubIndices[0] == ARM::ssub_0) { - // 2 S registers -> 1 D register. - if (SubIndices[1] == ARM::ssub_1) { - if (Size >= 128) - NewSubIdx = ARM::dsub_0; - return true; - } - } else if (SubIndices[0] == ARM::ssub_2) { - // 2 S registers -> 1 D register (2nd). - if (Size >= 128 && SubIndices[1] == ARM::ssub_3) { - NewSubIdx = ARM::dsub_1; - return true; - } - } - } - return false; -} - const TargetRegisterClass* ARMBaseRegisterInfo::getLargestLegalSuperClass(const TargetRegisterClass *RC) const { |