fallback: legalize: G_FMINIMUM s64

Snippet:

; Function Attrs: nounwind
define double @fminimum_f64(double %a, double %b) #0 {
  %1 = call double @llvm.minimum.f64(double %a, double %b)
  ret double %1
}

; Function Attrs: nocallback nocreateundeforpoison nofree nosync nounwind speculatable willreturn memory(none)
declare double @llvm.minimum.f64(double, double) #1

attributes #0 = { nounwind }
attributes #1 = { nocallback nocreateundeforpoison nofree nosync nounwind speculatable willreturn memory(none) }

Reproduce:

llc -mtriple=riscv32 -mattr=+d -verify-machineinstrs -target-abi=ilp32d -global-isel -global-isel-abort=2 -pass-remarks-missed=gisel.* snippet.ll -o -
llc -mtriple=riscv32 -mattr=+d -verify-machineinstrs -target-abi=ilp32d -global-isel=0 snippet.ll -o -

Local llc output:

remark: <unknown>:0:0: unable to legalize instruction: %2:_(s64) = G_FMINIMUM %0:_, %1:_ (in function: fminimum_f64)
warning: Instruction selection used fallback path for fminimum_f64

Occurrences (36):

Generated 2026-10-15 08:05 UTC.