fallback: legalize: G_AND <8 x s8>
| Run: | explore-bc8218b282-20261015-075519 |
| Kind: | fallback |
| Category: | legalize: G_AND <8 x s8> |
| Occurrences: | 6 in 5 configs, 3 test files |
| Snippet from: | rvp-simd-64.ll @test_and_b via llvm-extract |
| Config: | -mtriple=riscv64 -mattr=+experimental-p,+m,+zbb -verify-machineinstrs |
| Local check: | reproduces at bc8218b282 |
| Compiler Explorer: | not uploaded (over --godbolt-limit or disabled) |
Snippet:
define <8 x i8> @test_and_b(<8 x i8> %a, <8 x i8> %b) {
%res = and <8 x i8> %a, %b
ret <8 x i8> %res
}
Reproduce:
llc -mtriple=riscv64 -mattr=+experimental-p,+m,+zbb -verify-machineinstrs -global-isel -global-isel-abort=2 -pass-remarks-missed=gisel.* snippet.ll -o -
llc -mtriple=riscv64 -mattr=+experimental-p,+m,+zbb -verify-machineinstrs -global-isel=0 snippet.ll -o -
Local llc output:
remark: <unknown>:0:0: unable to legalize instruction: %2:_(<8 x s8>) = G_AND %0:_, %1:_ (in function: test_and_b)
warning: Instruction selection used fallback path for test_and_b
Occurrences (6):
| Input | Function | Config |
|---|
| rvp-simd-64.ll | test_and_b | -mtriple=riscv64 -mattr=+experimental-p,+m,+zbb -verify-machineinstrs |
| rvp-simd-64.ll | test_andn_b | -mtriple=riscv64 -mattr=+experimental-p,+m,+zbb -verify-machineinstrs |
| bfloat-imm.1aa4640151.ll (mutant of bfloat-imm.ll) | bfloat_zero | -mtriple=riscv32 -mattr=+zfbfmin -verify-machineinstrs -target-abi ilp32f |
| bfloat-imm.36d2f14b5e.ll (mutant of bfloat-imm.ll) | bfloat_zero | -mtriple=riscv64 -mattr=+zfbfmin -verify-machineinstrs -target-abi lp64f |
| zbb-cmp-combine.1f6eaaa53c.ll (mutant of zbb-cmp-combine.ll) | ulo_swap1 | -mtriple=riscv64 -mattr=+zbb -O3 |
| zbb-cmp-combine.d9fd11162a.ll (mutant of zbb-cmp-combine.ll) | ulo_swap1 | -mtriple=riscv64 -mattr=+zbb,+f -target-abi=lp64f -O3 |
Generated 2026-10-15 08:05 UTC.