fallback: legalize: G_FCANONICALIZE <2 x s16>

Run:main-04ca53e65f-20261014-113325
Kind:fallback
Category:legalize: G_FCANONICALIZE <2 x s16>
Occurrences:33 in 11 configs, 1 test files
Snippet from:fp-fcanonicalize.ll @fcanonicalize_v2f16 via llvm-extract
Config:--mtriple=riscv32
Local check:reproduces at 04ca53e65f
Compiler Explorer:not uploaded (over --godbolt-limit or disabled)

Snippet:

define <2 x half> @fcanonicalize_v2f16(<2 x half> %x) {
  %z = call <2 x half> @llvm.canonicalize.v2f16(<2 x half> %x)
  ret <2 x half> %z
}

; Function Attrs: nocallback nocreateundeforpoison nofree nosync nounwind speculatable willreturn memory(none)
declare <2 x half> @llvm.canonicalize.v2f16(<2 x half>) #0

attributes #0 = { nocallback nocreateundeforpoison nofree nosync nounwind speculatable willreturn memory(none) }

Reproduce:

llc --mtriple=riscv32 -global-isel -global-isel-abort=2 -pass-remarks-missed=gisel.* snippet.ll -o -
llc --mtriple=riscv32 -global-isel=0 snippet.ll -o -

Local llc output:

remark: <unknown>:0:0: unable to legalize instruction: %4:_(<2 x s16>) = G_FCANONICALIZE %0:_ (in function: fcanonicalize_v2f16)
warning: Instruction selection used fallback path for fcanonicalize_v2f16

Occurrences (33):

InputFunctionConfig
fp-fcanonicalize.llfcanonicalize_v2f16--mtriple=riscv32
fp-fcanonicalize.llfcanonicalize_v2f16_nnan--mtriple=riscv32
fp-fcanonicalize.llfcanonicalize_v2f16--mtriple=riscv32 --mattr=+d,+zfh
fp-fcanonicalize.llfcanonicalize_v2f16_nnan--mtriple=riscv32 --mattr=+d,+zfh
fp-fcanonicalize.llfcanonicalize_v2f16--mtriple=riscv32 --mattr=+d,-zfh
fp-fcanonicalize.llfcanonicalize_v2f16_nnan--mtriple=riscv32 --mattr=+d,-zfh
fp-fcanonicalize.llfcanonicalize_v2f16--mtriple=riscv64
fp-fcanonicalize.llfcanonicalize_v2f16_nnan--mtriple=riscv64
fp-fcanonicalize.llfcanonicalize_v2f16--mtriple=riscv64 --mattr=+d,+zfh
fp-fcanonicalize.llfcanonicalize_v2f16_nnan--mtriple=riscv64 --mattr=+d,+zfh
fp-fcanonicalize.llfcanonicalize_v2f16--mtriple=riscv64 --mattr=+d,-zfh
fp-fcanonicalize.llfcanonicalize_v2f16_nnan--mtriple=riscv64 --mattr=+d,-zfh
fp-fcanonicalize.llfcanonicalize_v2f16-mtriple=riscv32 -mattr=+zfinx -verify-machineinstrs
fp-fcanonicalize.llfcanonicalize_v2f16_nnan-mtriple=riscv32 -mattr=+zfinx -verify-machineinstrs
fp-fcanonicalize.llfcanonicalize_v2f16-mtriple=riscv32 -mattr=+zhinx -target-abi=ilp32 -verify-machineinstrs
fp-fcanonicalize.llfcanonicalize_v2f16_nnan-mtriple=riscv32 -mattr=+zhinx -target-abi=ilp32 -verify-machineinstrs
fp-fcanonicalize.llfcanonicalize_v2f16-mtriple=riscv64 -mattr=+zdinx -verify-machineinstrs
fp-fcanonicalize.llfcanonicalize_v2f16_nnan-mtriple=riscv64 -mattr=+zdinx -verify-machineinstrs
fp-fcanonicalize.llfcanonicalize_v2f16-mtriple=riscv64 -mattr=+zfinx -verify-machineinstrs
fp-fcanonicalize.llfcanonicalize_v2f16_nnan-mtriple=riscv64 -mattr=+zfinx -verify-machineinstrs
fp-fcanonicalize.llfcanonicalize_v2f16-mtriple=riscv64 -mattr=+zhinx -verify-machineinstrs
fp-fcanonicalize.llfcanonicalize_v2f16_nnan-mtriple=riscv64 -mattr=+zhinx -verify-machineinstrs
fp-fcanonicalize.0470f3d1a9.ll (mutant of fp-fcanonicalize.ll)fcanonicalize_v2f16_nnan-mtriple=riscv64 -mattr=+zdinx -verify-machineinstrs
fp-fcanonicalize.3bbff38863.ll (mutant of fp-fcanonicalize.ll)fcanonicalize_v2f16_nnan--mtriple=riscv64
fp-fcanonicalize.3f7a2207b1.ll (mutant of fp-fcanonicalize.ll)fcanonicalize_v2f16_nnan--mtriple=riscv32
fp-fcanonicalize.9db169a918.ll (mutant of fp-fcanonicalize.ll)fcanonicalize_v2f16_nnan--mtriple=riscv64 --mattr=+d,-zfh
fp-fcanonicalize.a3e5a66152.ll (mutant of fp-fcanonicalize.ll)fcanonicalize_v2f16_nnan-mtriple=riscv64 -mattr=+zhinx -verify-machineinstrs
fp-fcanonicalize.b441bb540d.ll (mutant of fp-fcanonicalize.ll)fcanonicalize_v2f16_nnan-mtriple=riscv32 -mattr=+zfinx -verify-machineinstrs
fp-fcanonicalize.b6b80cba43.ll (mutant of fp-fcanonicalize.ll)fcanonicalize_v2f16_nnan-mtriple=riscv64 -mattr=+zfinx -verify-machineinstrs
fp-fcanonicalize.c419381d9f.ll (mutant of fp-fcanonicalize.ll)fcanonicalize_v2f16_nnan--mtriple=riscv32 --mattr=+d,+zfh
fp-fcanonicalize.d5cb959035.ll (mutant of fp-fcanonicalize.ll)fcanonicalize_v2f16_nnan--mtriple=riscv64 --mattr=+d,+zfh
fp-fcanonicalize.edd614aeca.ll (mutant of fp-fcanonicalize.ll)fcanonicalize_v2f16_nnan--mtriple=riscv32 --mattr=+d,-zfh
fp-fcanonicalize.f55a44ef4e.ll (mutant of fp-fcanonicalize.ll)fcanonicalize_v2f16_nnan-mtriple=riscv32 -mattr=+zhinx -target-abi=ilp32 -verify-machineinstrs

Generated 2026-10-15 08:05 UTC.