diff options
| author | NAKAMURA Takumi <geek4civic@gmail.com> | 2014-06-25 12:41:52 +0000 |
|---|---|---|
| committer | NAKAMURA Takumi <geek4civic@gmail.com> | 2014-06-25 12:41:52 +0000 |
| commit | b720a3d15c0bcd9353237427e1da2e2fee1cb516 (patch) | |
| tree | 99c46b916e82d9c5f0be01510c8d368d331bbef6 /lib/Target/X86/X86FrameLowering.h | |
| parent | 2fc4d9923f951f331a84f7da0579ceb2cf42c472 (diff) | |
| download | llvm-b720a3d15c0bcd9353237427e1da2e2fee1cb516.tar.gz llvm-b720a3d15c0bcd9353237427e1da2e2fee1cb516.tar.bz2 llvm-b720a3d15c0bcd9353237427e1da2e2fee1cb516.tar.xz | |
Re-apply r211399, "Generate native unwind info on Win64" with a fix to ignore SEH pseudo ops in X86 JIT emitter.
--
This patch enables LLVM to emit Win64-native unwind info rather than
DWARF CFI. It handles all corner cases (I hope), including stack
realignment.
Because the unwind info is not flexible enough to describe stack frames
with a gap of unknown size in the middle, such as the one caused by
stack realignment, I modified register spilling code to place all spills
into the fixed frame slots, so that they can be accessed relative to the
frame pointer.
Patch by Vadim Chugunov!
Reviewed By: rnk
Differential Revision: http://reviews.llvm.org/D4081
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@211691 91177308-0d34-0410-b5e6-96231b3b80d8
Diffstat (limited to 'lib/Target/X86/X86FrameLowering.h')
| -rw-r--r-- | lib/Target/X86/X86FrameLowering.h | 9 |
1 files changed, 7 insertions, 2 deletions
diff --git a/lib/Target/X86/X86FrameLowering.h b/lib/Target/X86/X86FrameLowering.h index 5c43c1488d..5ad3d4dc2e 100644 --- a/lib/Target/X86/X86FrameLowering.h +++ b/lib/Target/X86/X86FrameLowering.h @@ -27,8 +27,8 @@ public: : TargetFrameLowering(StackGrowsDown, StackAl, LAO) {} void emitCalleeSavedFrameMoves(MachineBasicBlock &MBB, - MachineBasicBlock::iterator MBBI, DebugLoc DL, - unsigned FramePtr) const; + MachineBasicBlock::iterator MBBI, + DebugLoc DL) const; /// emitProlog/emitEpilog - These methods insert prolog and epilog code into /// the function. @@ -42,6 +42,11 @@ public: void processFunctionBeforeCalleeSavedScan(MachineFunction &MF, RegScavenger *RS = nullptr) const override; + bool + assignCalleeSavedSpillSlots(MachineFunction &MF, + const TargetRegisterInfo *TRI, + std::vector<CalleeSavedInfo> &CSI) const override; + bool spillCalleeSavedRegisters(MachineBasicBlock &MBB, MachineBasicBlock::iterator MI, const std::vector<CalleeSavedInfo> &CSI, |