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author | Dan Gohman <gohman@apple.com> | 2009-09-25 20:36:54 +0000 |
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committer | Dan Gohman <gohman@apple.com> | 2009-09-25 20:36:54 +0000 |
commit | c76909abfec876c6b751d693ebd3df07df686aa0 (patch) | |
tree | bc66c4b4bc5955aa33a7c6fb19c0163ef070b08a /lib/Target/X86/X86InstrBuilder.h | |
parent | 602b0c8c17f458d2c80f2deb3c8e554d516ee316 (diff) | |
download | llvm-c76909abfec876c6b751d693ebd3df07df686aa0.tar.gz llvm-c76909abfec876c6b751d693ebd3df07df686aa0.tar.bz2 llvm-c76909abfec876c6b751d693ebd3df07df686aa0.tar.xz |
Improve MachineMemOperand handling.
- Allocate MachineMemOperands and MachineMemOperand lists in MachineFunctions.
This eliminates MachineInstr's std::list member and allows the data to be
created by isel and live for the remainder of codegen, avoiding a lot of
copying and unnecessary translation. This also shrinks MemSDNode.
- Delete MemOperandSDNode. Introduce MachineSDNode which has dedicated
fields for MachineMemOperands.
- Change MemSDNode to have a MachineMemOperand member instead of its own
fields with the same information. This introduces some redundancy, but
it's more consistent with what MachineInstr will eventually want.
- Ignore alignment when searching for redundant loads for CSE, but remember
the greatest alignment.
Target-specific code which previously used MemOperandSDNodes with generic
SDNodes now use MemIntrinsicSDNodes, with opcodes in a designated range
so that the SelectionDAG framework knows that MachineMemOperand information
is available.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@82794 91177308-0d34-0410-b5e6-96231b3b80d8
Diffstat (limited to 'lib/Target/X86/X86InstrBuilder.h')
-rw-r--r-- | lib/Target/X86/X86InstrBuilder.h | 11 |
1 files changed, 6 insertions, 5 deletions
diff --git a/lib/Target/X86/X86InstrBuilder.h b/lib/Target/X86/X86InstrBuilder.h index 6aae2e8ab3..c475b56d12 100644 --- a/lib/Target/X86/X86InstrBuilder.h +++ b/lib/Target/X86/X86InstrBuilder.h @@ -26,6 +26,7 @@ #include "llvm/CodeGen/MachineFrameInfo.h" #include "llvm/CodeGen/MachineInstrBuilder.h" +#include "llvm/CodeGen/MachineMemOperand.h" #include "llvm/CodeGen/PseudoSourceValue.h" namespace llvm { @@ -142,11 +143,11 @@ addFrameReference(const MachineInstrBuilder &MIB, int FI, int Offset = 0) { Flags |= MachineMemOperand::MOLoad; if (TID.mayStore()) Flags |= MachineMemOperand::MOStore; - MachineMemOperand MMO(PseudoSourceValue::getFixedStack(FI), - Flags, - Offset, - MFI.getObjectSize(FI), - MFI.getObjectAlignment(FI)); + MachineMemOperand *MMO = + MF.getMachineMemOperand(PseudoSourceValue::getFixedStack(FI), + Flags, Offset, + MFI.getObjectSize(FI), + MFI.getObjectAlignment(FI)); return addOffset(MIB.addFrameIndex(FI), Offset) .addMemOperand(MMO); } |