fallback: legalize: G_SREM <2 x s16>

Run:	explore-04ca53e65f-20261014-114124
Kind:	fallback
Category:	legalize: G_SREM <2 x s16> NEW
Occurrences:	1 in 1 configs, 1 test files
Snippet from:	rvp-simd-32.211a00a3e4.ll (mutant of rvp-simd-32.ll) @test_orn_h via llvm-extract
Config:	`-mtriple=riscv32 -mattr=+experimental-p,+m,+zbb -verify-machineinstrs`
Local check:	reproduces at 04ca53e65f
Compiler Explorer:	not uploaded (over --godbolt-limit or disabled)

Snippet:

define <2 x i16> @test_orn_h(<2 x i16> %a, <2 x i16> %b) {
  %not = xor <2 x i16> %b, splat (i16 -1)
  %B = srem <2 x i16> %not, %b
  ret <2 x i16> %B
}

Reproduce:

llc -mtriple=riscv32 -mattr=+experimental-p,+m,+zbb -verify-machineinstrs -global-isel -global-isel-abort=2 -pass-remarks-missed=gisel.* snippet.ll -o -
llc -mtriple=riscv32 -mattr=+experimental-p,+m,+zbb -verify-machineinstrs -global-isel=0 snippet.ll -o -

Local llc output:

remark: <unknown>:0:0: unable to legalize instruction: %5:_(<2 x s16>) = G_SREM %4:_, %1:_ (in function: test_orn_h)
warning: Instruction selection used fallback path for test_orn_h

Occurrences (1):

Input	Function	Config
rvp-simd-32.211a00a3e4.ll (mutant of rvp-simd-32.ll)	test_orn_h	`-mtriple=riscv32 -mattr=+experimental-p,+m,+zbb -verify-machineinstrs`

Generated 2026-10-15 08:05 UTC.