[PATCH] D122635: [RISCV] Filter out instructions which contain unsafe things when outlining
Wang Pengcheng via Phabricator via llvm-commits
llvm-commits at lists.llvm.org
Mon Mar 28 22:26:00 PDT 2022
pcwang-thead created this revision.
pcwang-thead added reviewers: craig.topper, asb, lewis-revill, jrtc27, luismarques.
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Like JumpTableIndex, FrameIndex and others.
Repository:
rG LLVM Github Monorepo
https://reviews.llvm.org/D122635
Files:
llvm/lib/Target/RISCV/RISCVInstrInfo.cpp
Index: llvm/lib/Target/RISCV/RISCVInstrInfo.cpp
===================================================================
--- llvm/lib/Target/RISCV/RISCVInstrInfo.cpp
+++ llvm/lib/Target/RISCV/RISCVInstrInfo.cpp
@@ -1272,7 +1272,8 @@
// Make sure the operands don't reference something unsafe.
for (const auto &MO : MI.operands())
- if (MO.isMBB() || MO.isBlockAddress() || MO.isCPI() || MO.isJTI())
+ if (MO.isMBB() || MO.isBlockAddress() || MO.isCPI() || MO.isJTI() ||
+ MO.isCFIIndex() || MO.isFI() || MO.isTargetIndex())
return outliner::InstrType::Illegal;
// Don't allow instructions which won't be materialized to impact outlining
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