[all-commits] [llvm/llvm-project] b53866: [LoongArch] Modify expanding code sequence for Pse...

[ZhaoQi via All-commits]

  Branch: refs/heads/main
  Home:   https://github.com/llvm/llvm-project
  Commit: b53866fec80d8676705409140b8ed2147ec44fad
      https://github.com/llvm/llvm-project/commit/b53866fec80d8676705409140b8ed2147ec44fad
  Author: ZhaoQi <zhaoqi01 at loongson.cn>
  Date:   2024-12-30 (Mon, 30 Dec 2024)

  Changed paths:
    M llvm/lib/Target/LoongArch/LoongArchExpandPseudoInsts.cpp
    M llvm/lib/Target/LoongArch/LoongArchISelLowering.cpp
    M llvm/lib/Target/LoongArch/LoongArchInstrInfo.cpp
    M llvm/lib/Target/LoongArch/LoongArchMCInstLower.cpp
    M llvm/lib/Target/LoongArch/MCTargetDesc/LoongArchBaseInfo.h
    M llvm/test/CodeGen/LoongArch/machinelicm-address-pseudos.ll
    M llvm/test/CodeGen/LoongArch/mir-target-flags.ll
    M llvm/test/CodeGen/LoongArch/tls-models.ll

  Log Message:
  -----------
  [LoongArch] Modify expanding code sequence for PseudoLA_TLS_LE (#119696)

Before this commit, PseudoLA_TLS_LE for normal/medium code model expand
normally to:
```
  lu12i.w $rd, %le_hi20(sym)
  ori $rd, $rd, %le_lo12(sym)
```

This commit changes the result to:
```
  lu12i.w $rd, %le_hi20_r(sym)
  add.w/d $rd, $rd, $tp, %le_add_r(sym)
  addi.w/d $rd, $rd, %le_lo12_r(sym)
```

This aims to be optimized by linker relaxation in the future.

This commit makes no change to PseudoLA_TLS_LE in large code model.



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