fallback: translate: extractelement <vscale x 2 x i64>

Run:explore-bc8218b282-20261015-075519
Kind:fallback
Category:translate: extractelement <vscale x 2 x i64> NEW
Occurrences:2 in 2 configs, 1 test files
Snippet from:nontemporal-scalable.29270b8c62.ll (mutant of nontemporal-scalable.ll) @test_nontemporal_P1_load_nxv2i64 via llvm-extract
Config:-mtriple=riscv64 -mattr=+zihintntl,+f,+d,+zfh,+v
Local check:reproduces at bc8218b282
Compiler Explorer:not uploaded (over --godbolt-limit or disabled)

Snippet:

@G = external global i16
@G.9 = external global i64

define <vscale x 2 x i64> @test_nontemporal_P1_load_nxv2i64(ptr %p) {
  %LGV = load i16, ptr @G, align 2
  %1 = load <vscale x 2 x i64>, ptr %p, align 16, !nontemporal !0, !riscv-nontemporal-domain !1
  %E = extractelement <vscale x 2 x i64> %1, i16 %LGV
  store i64 %E, ptr @G.9, align 4
  ret <vscale x 2 x i64> %1
}

!0 = !{i32 1}
!1 = !{i32 2}

Reproduce:

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

Local llc output:

remark: <unknown>:0:0: unable to translate instruction: extractelement: '  %E = extractelement <vscale x 2 x i64> %1, i16 %LGV' (in function: test_nontemporal_P1_load_nxv2i64)
warning: Instruction selection used fallback path for test_nontemporal_P1_load_nxv2i64

Occurrences (2):

InputFunctionConfig
nontemporal-scalable.29270b8c62.ll (mutant of nontemporal-scalable.ll)test_nontemporal_P1_load_nxv2i64-mtriple=riscv64 -mattr=+zihintntl,+f,+d,+zfh,+v
nontemporal-scalable.a37a3ad7dd.ll (mutant of nontemporal-scalable.ll)test_nontemporal_P1_load_nxv2i64-mtriple=riscv32 -mattr=+zihintntl,+f,+d,+zfh,+v

Generated 2026-10-15 08:05 UTC.