fallback: legalize: G_FMINIMUM s128

Run:explore-bc8218b282-20261015-075519
Kind:fallback
Category:legalize: G_FMINIMUM s128
Occurrences:2 in 2 configs, 1 test files
Snippet from:fp128.ll @fminimum via llvm-extract
Config:-mtriple=riscv32 -verify-machineinstrs
Local check:reproduces at bc8218b282
Compiler Explorer:not uploaded (over --godbolt-limit or disabled)

Snippet:

define fp128 @fminimum(fp128 %x, fp128 %y) {
  %a = call fp128 @llvm.minimum.f128(fp128 %x, fp128 %y)
  ret fp128 %a
}

; Function Attrs: nocallback nocreateundeforpoison nofree nosync nounwind speculatable willreturn memory(none)
declare fp128 @llvm.minimum.f128(fp128, fp128) #0

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

Reproduce:

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

Local llc output:

remark: <unknown>:0:0: unable to legalize instruction: %5:_(s128) = G_FMINIMUM %0:_, %1:_ (in function: fminimum)
warning: Instruction selection used fallback path for fminimum

Occurrences (2):

InputFunctionConfig
fp128.llfminimum-mtriple=riscv32 -verify-machineinstrs
fp128.llfminimum-mtriple=riscv64 -verify-machineinstrs

Generated 2026-10-15 08:05 UTC.