[all-commits] [llvm/llvm-project] 698c6b: [WebAssembly] Support single-floating-point immedi...

[Dan Gohman via All-commits]

  Branch: refs/heads/main
  Home:   https://github.com/llvm/llvm-project
  Commit: 698c6b0a099b902722d9e89234e0205ac240c13e
      https://github.com/llvm/llvm-project/commit/698c6b0a099b902722d9e89234e0205ac240c13e
  Author: Dan Gohman <dev at sunfishcode.online>
  Date:   2021-02-04 (Thu, 04 Feb 2021)

  Changed paths:
    M llvm/include/llvm/MC/MCInst.h
    M llvm/include/llvm/MC/MCInstBuilder.h
    M llvm/lib/MC/MCInst.cpp
    M llvm/lib/Target/AArch64/MCTargetDesc/AArch64InstPrinter.cpp
    M llvm/lib/Target/AMDGPU/MCTargetDesc/AMDGPUInstPrinter.cpp
    M llvm/lib/Target/AMDGPU/MCTargetDesc/SIMCCodeEmitter.cpp
    M llvm/lib/Target/ARM/ARMMCInstLower.cpp
    M llvm/lib/Target/ARM/MCTargetDesc/ARMMCCodeEmitter.cpp
    M llvm/lib/Target/AVR/MCTargetDesc/AVRMCCodeEmitter.cpp
    M llvm/lib/Target/Mips/MCTargetDesc/MipsMCCodeEmitter.cpp
    M llvm/lib/Target/WebAssembly/AsmParser/WebAssemblyAsmParser.cpp
    M llvm/lib/Target/WebAssembly/Disassembler/WebAssemblyDisassembler.cpp
    M llvm/lib/Target/WebAssembly/MCTargetDesc/WebAssemblyInstPrinter.cpp
    M llvm/lib/Target/WebAssembly/MCTargetDesc/WebAssemblyMCCodeEmitter.cpp
    M llvm/lib/Target/WebAssembly/WebAssemblyInstrInfo.td
    M llvm/lib/Target/WebAssembly/WebAssemblyMCInstLower.cpp
    M llvm/test/CodeGen/WebAssembly/immediates.ll
    A llvm/test/CodeGen/WebAssembly/snan_literal.ll
    M llvm/tools/llvm-exegesis/lib/BenchmarkResult.cpp
    M llvm/tools/llvm-exegesis/lib/MCInstrDescView.cpp
    M llvm/unittests/tools/llvm-exegesis/X86/BenchmarkResultTest.cpp

  Log Message:
  -----------
  [WebAssembly] Support single-floating-point immediate value

As mentioned in TODO comment, casting double to float causes NaNs to change bits.
To avoid the change, this patch adds support for single-floating-point immediate value on MachineCode.

Patch by Yuta Saito.

Differential Revision: https://reviews.llvm.org/D77384