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| author | Sanjoy Das <sanjoy@playingwithpointers.com> | 2015-06-15 18:44:08 +0000 |
|---|---|---|
| committer | Sanjoy Das <sanjoy@playingwithpointers.com> | 2015-06-15 18:44:08 +0000 |
| commit | c63244daa19971760aed20a40d938ff592ad3574 (patch) | |
| tree | de4416d659f970f83bb3a4c8330bac7a7932b9c8 /llvm/utils/TableGen/CodeGenTarget.cpp | |
| parent | 2d869b230b482c6a7972d8cd4948ef2b96e389d8 (diff) | |
| download | llvm-c63244daa19971760aed20a40d938ff592ad3574.zip llvm-c63244daa19971760aed20a40d938ff592ad3574.tar.gz llvm-c63244daa19971760aed20a40d938ff592ad3574.tar.bz2 | |
[CodeGen] Introduce a FAULTING_LOAD_OP pseudo-op.
Summary:
This instruction encodes a loading operation that may fault, and a label
to branch to if the load page-faults. The locations of potentially
faulting loads and their "handler" destinations are recorded in a
FaultMap section, meant to be consumed by LLVM's clients.
Nothing generates FAULTING_LOAD_OP instructions yet, but they will be
used in a future change.
The documentation (FaultMaps.rst) needs improvement and I will update
this diff with a more expanded version shortly.
Depends on D10196
Reviewers: rnk, reames, AndyAyers, ab, atrick, pgavlin
Reviewed By: atrick, pgavlin
Subscribers: llvm-commits
Differential Revision: http://reviews.llvm.org/D10197
llvm-svn: 239740
Diffstat (limited to 'llvm/utils/TableGen/CodeGenTarget.cpp')
| -rw-r--r-- | llvm/utils/TableGen/CodeGenTarget.cpp | 2 |
1 files changed, 1 insertions, 1 deletions
diff --git a/llvm/utils/TableGen/CodeGenTarget.cpp b/llvm/utils/TableGen/CodeGenTarget.cpp index e79a809..47d68fc 100644 --- a/llvm/utils/TableGen/CodeGenTarget.cpp +++ b/llvm/utils/TableGen/CodeGenTarget.cpp @@ -297,7 +297,7 @@ void CodeGenTarget::ComputeInstrsByEnum() const { "IMPLICIT_DEF", "SUBREG_TO_REG", "COPY_TO_REGCLASS", "DBG_VALUE", "REG_SEQUENCE", "COPY", "BUNDLE", "LIFETIME_START", "LIFETIME_END", "STACKMAP", "PATCHPOINT", "LOAD_STACK_GUARD", - "STATEPOINT", "FRAME_ALLOC", + "STATEPOINT", "FRAME_ALLOC", "FAULTING_LOAD_OP", nullptr}; const auto &Insts = getInstructions(); for (const char *const *p = FixedInstrs; *p; ++p) { |