Comments (3)
This is done, with #29 getting it mostly right and #32 fixing one remaining issue.
from llvm.
What exactly is an inline stack probe and why is it needed?
from llvm.
On Windows, applications must carefully grow the stack. See this writeup for more details.
For the most part stack growth occurs gradually in small chunks as the call stack deepens, and so no extra code is required. However for large stack frames and/or large allocas, the compiler must ensure that the newly required pages of the stack are probed in the right order before they're used. __chkstk is a helper routine in the CRT that can do this probing.
Jitted code can't take advantage of __chkstk and so we are implementing similar logic here as inline code sequences.
from llvm.
Related Issues (20)
- Gc.relocate insertion for WinEH
- Use machine verifier to vet our low-level expansions
- Don't cause flag spill in gc transition end/pause expansion
- Upstream SelectionDAGBuilder::lowerInvokable Invoke parameter
- llvm-link issues when combining BC files. HOT 3
- which backend does llvm support?
- supporting flags in clang-cl HOT 3
- This repo is missing important files HOT 1
- attach as fork to llvm/llvm-project
- Finish implementation of inline stack probes for x64 CoreCLR (prolog case) HOT 2
- Replace the crude CSR spilling for GC transitions with something more sophisticated. HOT 1
- Reader: Zero-extend the result of ICmp and FCmp from i1 to i32 instead of sign-extending it. HOT 1
- Fix issue with cross-section relative symbol relocation HOT 1
- Create high level LLVM nop or coreclr intrinsic for debug info
- Add Call-site Size information to __llvm.stackmaps HOT 1
- Implement StackMap v2 HOT 2
- GC: looks like we need to set more fields in CoreCLR GC Strategy
- Extend alloca: Specify address space for allocation HOT 2
- Avoid Microsoft C++ Warning C4319 in SmallBitVector.h HOT 1
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from llvm.