fallback: legalize: G_EXTRACT_VECTOR_ELT s32,<8 x s32>,s64

Snippet:

@G.2 = external global i32

define void @test_masked_store_success_invert_mask_v8i32(<8 x i32> %x, ptr %ptr, <8 x i1> %mask) {
  %load = load <8 x i32>, ptr %ptr, align 32
  %sel = select <8 x i1> %mask, <8 x i32> %load, <8 x i32> %x
  %E = extractelement <8 x i32> %x, i1 true
  store <8 x i32> %sel, ptr %ptr, align 32
  store i32 %E, ptr @G.2, align 4
  ret void
}

Reproduce:

llc -mtriple=riscv64-- -mattr=+m,+v,+f -global-isel -global-isel-abort=2 -pass-remarks-missed=gisel.* snippet.ll -o -
llc -mtriple=riscv64-- -mattr=+m,+v,+f -global-isel=0 snippet.ll -o -

Local llc output:

remark: <unknown>:0:0: unable to legalize instruction: %7:_(s32) = G_EXTRACT_VECTOR_ELT %0:_(<8 x s32>), %8:_(s64) (in function: test_masked_store_success_invert_mask_v8i32)
warning: Instruction selection used fallback path for test_masked_store_success_invert_mask_v8i32

Occurrences (1):

Generated 2026-10-15 08:05 UTC.