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| author | Lang Hames <lhames@gmail.com> | 2013-11-29 03:07:54 +0000 |
|---|---|---|
| committer | Lang Hames <lhames@gmail.com> | 2013-11-29 03:07:54 +0000 |
| commit | 1cbca515b6804a24d778fc0cab04ea0c53900141 (patch) | |
| tree | 4373adbf32f0dd251035a76616dcfcd68b49c6a7 /include/llvm/Target/TargetLowering.h | |
| parent | 7fd70e7b0c9c12183d9a3b084e5789622d0414fa (diff) | |
| download | llvm-1cbca515b6804a24d778fc0cab04ea0c53900141.tar.gz llvm-1cbca515b6804a24d778fc0cab04ea0c53900141.tar.bz2 llvm-1cbca515b6804a24d778fc0cab04ea0c53900141.tar.xz | |
Refactor a lot of patchpoint/stackmap related code to simplify and make it
target independent.
Most of the x86 specific stackmap/patchpoint handling was necessitated by the
use of the native address-mode format for frame index operands. PEI has now
been modified to treat stackmap/patchpoint similarly to DEBUG_INFO, allowing
us to use a simple, platform independent register/offset pair for frame
indexes on stackmap/patchpoints.
Notes:
- Folding is now platform independent and automatically supported.
- Emiting patchpoints with direct memory references now just involves calling
the TargetLoweringBase::emitPatchPoint utility method from the target's
XXXTargetLowering::EmitInstrWithCustomInserter method. (See
X86TargetLowering for an example).
- No more ugly platform-specific operand parsers.
This patch shouldn't change the generated output for X86.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@195944 91177308-0d34-0410-b5e6-96231b3b80d8
Diffstat (limited to 'include/llvm/Target/TargetLowering.h')
| -rw-r--r-- | include/llvm/Target/TargetLowering.h | 4 |
1 files changed, 4 insertions, 0 deletions
diff --git a/include/llvm/Target/TargetLowering.h b/include/llvm/Target/TargetLowering.h index 5ab04f7944..6f643c3583 100644 --- a/include/llvm/Target/TargetLowering.h +++ b/include/llvm/Target/TargetLowering.h @@ -1685,6 +1685,10 @@ protected: /// Return true if the value types that can be represented by the specified /// register class are all legal. bool isLegalRC(const TargetRegisterClass *RC) const; + + /// Replace/modify any TargetFrameIndex operands with a targte-dependent + /// sequence of memory operands that is recognized by PrologEpilogInserter. + MachineBasicBlock *emitPatchPoint(MachineInstr *MI, MachineBasicBlock *MBB) const; }; /// This class defines information used to lower LLVM code to legal SelectionDAG |