fallback: legalize: G_EXTRACT_VECTOR_ELT s16,<2 x s16>,s32
| Run: | main-bc8218b282-20261015-074651 |
| Kind: | fallback |
| Category: | legalize: G_EXTRACT_VECTOR_ELT s16,<2 x s16>,s32 |
| Occurrences: | 4 in 1 configs, 1 test files |
| Snippet from: | rvp-srl-bitcast-bv.ll @srl_bitcast_buildvector_extract_last via llvm-extract |
| Config: | -mtriple=riscv32 -mattr=+experimental-p,+m,+zbb |
| Local check: | reproduces at bc8218b282 |
| Compiler Explorer: | not uploaded (over --godbolt-limit or disabled) |
Snippet:
define i16 @srl_bitcast_buildvector_extract_last(<2 x i16> %v, ptr %p) {
%div = sdiv <2 x i16> splat (i16 1), %v
store <2 x i16> %div, ptr %p, align 4
%e = extractelement <2 x i16> %div, i64 1
ret i16 %e
}
Reproduce:
llc -mtriple=riscv32 -mattr=+experimental-p,+m,+zbb -global-isel -global-isel-abort=2 -pass-remarks-missed=gisel.* snippet.ll -o -
llc -mtriple=riscv32 -mattr=+experimental-p,+m,+zbb -global-isel=0 snippet.ll -o -
Local llc output:
remark: <unknown>:0:0: unable to legalize instruction: %5:_(s16) = G_EXTRACT_VECTOR_ELT %4:_(<2 x s16>), %6:_(s32) (in function: srl_bitcast_buildvector_extract_last)
warning: Instruction selection used fallback path for srl_bitcast_buildvector_extract_last
Occurrences (4):
| Input | Function | Config |
|---|
| rvp-srl-bitcast-bv.ll | srl_bitcast_buildvector_extract_last | -mtriple=riscv32 -mattr=+experimental-p,+m,+zbb |
| rvp-srl-bitcast-bv.0ae02b1744.ll (mutant of rvp-srl-bitcast-bv.ll) | srl_bitcast_buildvector_extract_last | -mtriple=riscv32 -mattr=+experimental-p,+m,+zbb |
| rvp-srl-bitcast-bv.4be56fbbfb.ll (mutant of rvp-srl-bitcast-bv.ll) | srl_bitcast_buildvector_extract_last | -mtriple=riscv32 -mattr=+experimental-p,+m,+zbb |
| rvp-srl-bitcast-bv.9babed44e2.ll (mutant of rvp-srl-bitcast-bv.ll) | srl_bitcast_buildvector_extract_last | -mtriple=riscv32 -mattr=+experimental-p,+m,+zbb |
Generated 2026-10-15 08:05 UTC.