[PATCH] D108961: [RISCV] MC relaxation for out-of-range conditional branch.

[Hsiangkai Wang via Phabricator via llvm-commits]

HsiangKai created this revision.
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If .L1 <https://reviews.llvm.org/L1> is not within +-4KiB range,

convert

bge a0, a1, .L1 <https://reviews.llvm.org/L1>

to

blt a0, a1, 8
j   .L1 <https://reviews.llvm.org/L1>

Fix the bug reported in
https://sifive.atlassian.net/browse/TOOLCHAIN-1011.

In this patch, if the symbol is unresolved at assembly time, do not do
this relaxation.


Repository:
  rG LLVM Github Monorepo

https://reviews.llvm.org/D108961

Files:
  llvm/lib/Target/RISCV/MCTargetDesc/RISCVAsmBackend.cpp
  llvm/lib/Target/RISCV/MCTargetDesc/RISCVMCCodeEmitter.cpp
  llvm/lib/Target/RISCV/RISCVInstrInfo.cpp
  llvm/lib/Target/RISCV/RISCVInstrInfo.td
  llvm/test/MC/RISCV/fixups-diagnostics.s
  llvm/test/MC/RISCV/long-conditional-jump.s
  llvm/test/MC/RISCV/rv64-relax-all.s

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