fallback: legalize: G_LOAD <2 x s32>,p0

Run:	explore-bc8218b282-20261015-075519
Kind:	fallback
Category:	legalize: G_LOAD <2 x s32>,p0
Occurrences:	41 in 17 configs, 4 test files
Snippet from:	rvp-unaligned-load-store.ll @test_store_v2i32_align1 via llvm-extract
Config:	`-mtriple=riscv32 -mattr=+experimental-p`
Local check:	reproduces at bc8218b282
Compiler Explorer:	not uploaded (over --godbolt-limit or disabled)

Snippet:

define void @test_store_v2i32_align1(ptr %a_ptr, ptr %b_ptr) {
  %a = load <2 x i32>, ptr %a_ptr, align 8
  store <2 x i32> %a, ptr %b_ptr, align 1
  ret void
}

Reproduce:

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

Local llc output:

remark: <unknown>:0:0: unable to legalize instruction: %2:_(<2 x s32>) = G_LOAD %0:_(p0) :: (load (<2 x s32>) from %ir.a_ptr) (in function: test_store_v2i32_align1)
warning: Instruction selection used fallback path for test_store_v2i32_align1

Occurrences (41):

Input	Function	Config
rvp-unaligned-load-store.ll	test_store_v2i32_align1	`-mtriple=riscv32 -mattr=+experimental-p`
rvp-unaligned-load-store.ll	test_store_v2i32_align2	`-mtriple=riscv32 -mattr=+experimental-p`
rvp-unaligned-load-store.ll	test_store_v2i32_align4	`-mtriple=riscv32 -mattr=+experimental-p`
rvp-unaligned-load-store.ll	test_load_v2i32_align1	`-mtriple=riscv32 -mattr=+experimental-p,+unaligned-scalar-mem`
rvp-unaligned-load-store.ll	test_store_v2i32_align1	`-mtriple=riscv32 -mattr=+experimental-p,+unaligned-scalar-mem`
rvp-unaligned-load-store.ll	test_load_v2i32_align2	`-mtriple=riscv32 -mattr=+experimental-p,+unaligned-scalar-mem`
rvp-unaligned-load-store.ll	test_store_v2i32_align2	`-mtriple=riscv32 -mattr=+experimental-p,+unaligned-scalar-mem`
rvp-unaligned-load-store.ll	test_load_v2i32_align4	`-mtriple=riscv32 -mattr=+experimental-p,+unaligned-scalar-mem`
rvp-unaligned-load-store.ll	test_store_v2i32_align4	`-mtriple=riscv32 -mattr=+experimental-p,+unaligned-scalar-mem`
rvp-unaligned-load-store.ll	test_store_v2i32_align1	`-mtriple=riscv64 -mattr=+experimental-p`
rvp-unaligned-load-store.ll	test_store_v2i32_align2	`-mtriple=riscv64 -mattr=+experimental-p`
rvp-unaligned-load-store.ll	test_store_v2i32_align4	`-mtriple=riscv64 -mattr=+experimental-p`
rvp-unaligned-load-store.ll	test_load_v2i32_align1	`-mtriple=riscv64 -mattr=+experimental-p,+unaligned-scalar-mem`
rvp-unaligned-load-store.ll	test_store_v2i32_align1	`-mtriple=riscv64 -mattr=+experimental-p,+unaligned-scalar-mem`
rvp-unaligned-load-store.ll	test_load_v2i32_align2	`-mtriple=riscv64 -mattr=+experimental-p,+unaligned-scalar-mem`
rvp-unaligned-load-store.ll	test_store_v2i32_align2	`-mtriple=riscv64 -mattr=+experimental-p,+unaligned-scalar-mem`
rvp-unaligned-load-store.ll	test_load_v2i32_align4	`-mtriple=riscv64 -mattr=+experimental-p,+unaligned-scalar-mem`
rvp-unaligned-load-store.ll	test_store_v2i32_align4	`-mtriple=riscv64 -mattr=+experimental-p,+unaligned-scalar-mem`
fp-fcanonicalize.0d14b0c975.ll (mutant of fp-fcanonicalize.ll)	fcanonicalize_v2f32_nnan	`--mtriple=riscv32`
fp-fcanonicalize.3a9a889517.ll (mutant of fp-fcanonicalize.ll)	fcanonicalize_v2f32_nnan	`-mtriple=riscv64 -mattr=+zdinx -verify-machineinstrs`
fp-fcanonicalize.489bc7a4c2.ll (mutant of fp-fcanonicalize.ll)	fcanonicalize_v2f32_nnan	`--mtriple=riscv64 --mattr=+d,-zfh`
fp-fcanonicalize.50a3e79357.ll (mutant of fp-fcanonicalize.ll)	fcanonicalize_v2f32_nnan	`--mtriple=riscv32 --mattr=+d,-zfh`
fp-fcanonicalize.519ac49c7f.ll (mutant of fp-fcanonicalize.ll)	fcanonicalize_v2f32_nnan	`-mtriple=riscv32 -mattr=+zhinx -target-abi=ilp32 -verify-machineinstrs`
fp-fcanonicalize.5bf176f372.ll (mutant of fp-fcanonicalize.ll)	fcanonicalize_v2f32_nnan	`--mtriple=riscv64`
fp-fcanonicalize.63376de87e.ll (mutant of fp-fcanonicalize.ll)	fcanonicalize_v2f32_nnan	`-mtriple=riscv32 -mattr=+zfinx -verify-machineinstrs`
fp-fcanonicalize.6db34a6e44.ll (mutant of fp-fcanonicalize.ll)	fcanonicalize_v2f32_nnan	`--mtriple=riscv64 --mattr=+d,+zfh`
fp-fcanonicalize.7b17df985d.ll (mutant of fp-fcanonicalize.ll)	fcanonicalize_v2f32_nnan	`-mtriple=riscv64 -mattr=+zfinx -verify-machineinstrs`
fp-fcanonicalize.ac3b60ca5d.ll (mutant of fp-fcanonicalize.ll)	fcanonicalize_v2f32_nnan	`--mtriple=riscv32 --mattr=+d,+zfh`
fp-fcanonicalize.ef84762e32.ll (mutant of fp-fcanonicalize.ll)	fcanonicalize_v2f32_nnan	`-mtriple=riscv64 -mattr=+zhinx -verify-machineinstrs`
rvp-unaligned-load-store.0239329493.ll (mutant of rvp-unaligned-load-store.ll)	test_load_v2i32_align1	`-mtriple=riscv64 -mattr=+experimental-p,+unaligned-scalar-mem`
rvp-unaligned-load-store.10af154bd1.ll (mutant of rvp-unaligned-load-store.ll)	test_load_v2i32_align1	`-mtriple=riscv32 -mattr=+experimental-p,+unaligned-scalar-mem`
rvp-unaligned-load-store.240ca9c869.ll (mutant of rvp-unaligned-load-store.ll)	test_store_v2i32_align4	`-mtriple=riscv64 -mattr=+experimental-p`
rvp-unaligned-load-store.28e75cd729.ll (mutant of rvp-unaligned-load-store.ll)	test_store_v2i32_align2	`-mtriple=riscv64 -mattr=+experimental-p,+unaligned-scalar-mem`
rvp-unaligned-load-store.3f2bb7c5d4.ll (mutant of rvp-unaligned-load-store.ll)	test_store_v2i32_align2	`-mtriple=riscv64 -mattr=+experimental-p`
rvp-unaligned-load-store.813a076b12.ll (mutant of rvp-unaligned-load-store.ll)	test_store_v2i32_align2	`-mtriple=riscv32 -mattr=+experimental-p,+unaligned-scalar-mem`
rvp-unaligned-load-store.c3326ae641.ll (mutant of rvp-unaligned-load-store.ll)	test_store_v2i32_align4	`-mtriple=riscv32 -mattr=+experimental-p`
rvp-unaligned-load-store.e995bc881c.ll (mutant of rvp-unaligned-load-store.ll)	test_store_v2i32_align4	`-mtriple=riscv32 -mattr=+experimental-p,+unaligned-scalar-mem`
rvp-unaligned-load-store.ec0c9c9959.ll (mutant of rvp-unaligned-load-store.ll)	test_store_v2i32_align2	`-mtriple=riscv32 -mattr=+experimental-p`
rvp-unaligned-load-store.f5425ee3fb.ll (mutant of rvp-unaligned-load-store.ll)	test_store_v2i32_align4	`-mtriple=riscv64 -mattr=+experimental-p,+unaligned-scalar-mem`
rvp-widening-convert.e3ac9afd51.ll (mutant of rvp-widening-convert.ll)	test_pwcvtu_v2i16	`-mtriple=riscv64 -mattr=+experimental-p,+m,+zbb -verify-machineinstrs`
rvp-widening-shift.aa05732610.ll (mutant of rvp-widening-shift.ll)	pwslli_v2i16	`-mtriple=riscv64 -mattr=+experimental-p -verify-machineinstrs`

Generated 2026-10-15 08:05 UTC.