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riscv64: Improve codegen for icmp#7203

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Merged

afonso360 merged 20 commits intobytecodealliance:mainbytecodealliance/wasmtime:mainfrom alexcrichton:rv64-icmpalexcrichton/wasmtime:rv64-icmpCopy head branch name to clipboardOct 16, 2023

+1,898-1,371

Commits

Commits on Oct 9, 2023

• riscv64: Constants are always sign-extended

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  alexcrichton

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  1f7df79

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• riscv64: Rename lower_int_compare helper

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• riscv64: Rename some float comparison helpers

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• riscv64: Remove ordered helper

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  alexcrichton

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• riscv64: Remove the Icmp pseudo-instruction

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• riscv64: Remove an unused helper

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  7a17ebb

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• riscv64: Optimize comparisons with 0

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Commits on Oct 10, 2023

• riscv64: Specialize a < $imm

  alexcrichton

  committed
  1ab35d3

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• riscv64: Optimize Equal/NotEqual against constants

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  committed
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• riscv64: Optimize LessThan with constant argument

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  committed
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• Optimize a <= $imm

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  committed
  6b1e7b9

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• riscv64: Optimize a >= $imm

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  committed
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• riscv64: Add comment for new helper

  alexcrichton

  committed
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• Use i64 in icmp optimizations

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  alexcrichton

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• Correct some sign extensions

  alexcrichton

  committed
  38e2f79

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Commits on Oct 12, 2023

• riscv64: Don't assume immediates are extended

  alexcrichton

  committed
  72a3a79

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• riscv64: Fix encoding for c.addi4spn

  

  afonso360

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  alexcrichton

  committed
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• riscv64: Remove icmp lowerings which modify constants

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  committed
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• Add regression test

  alexcrichton

  committed
  0ac34c6

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Commits on Oct 14, 2023

• riscv64: Fix handling unsigned comparisons with constants

  alexcrichton

  committed
  24cf381

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