fallback: legalize: G_INSERT_SUBVECTOR <vscale x 2 x s32>,<4 x s32>

Run:main-04ca53e65f-20261014-105623
Kind:fallback
Category:legalize: G_INSERT_SUBVECTOR <vscale x 2 x s32>,<4 x s32>
Occurrences:44 in 7 configs, 5 test files
Snippet from:nontemporal.ll @test_nontemporal_load_v4i32 via llvm-extract
Config:-mtriple=riscv32 -mattr=+zihintntl,+f,+d,+zfh,+v
Local check:reproduces at 04ca53e65f
Compiler Explorer:not uploaded (over --godbolt-limit or disabled)

Snippet:

define <4 x i32> @test_nontemporal_load_v4i32(ptr %p) {
  %1 = load <4 x i32>, ptr %p, align 16, !nontemporal !0
  ret <4 x i32> %1
}

!0 = !{i32 1}

Reproduce:

llc -mtriple=riscv32 -mattr=+zihintntl,+f,+d,+zfh,+v -global-isel -global-isel-abort=2 -pass-remarks-missed=gisel.* snippet.ll -o -
llc -mtriple=riscv32 -mattr=+zihintntl,+f,+d,+zfh,+v -global-isel=0 snippet.ll -o -

Local llc output:

remark: <unknown>:0:0: unable to legalize instruction: %3:_(<vscale x 2 x s32>) = G_INSERT_SUBVECTOR %2:_, %1:_(<4 x s32>), 0 (in function: test_nontemporal_load_v4i32)
warning: Instruction selection used fallback path for test_nontemporal_load_v4i32

Occurrences (44):

InputFunctionConfig
nontemporal.lltest_nontemporal_load_v4i32-mtriple=riscv32 -mattr=+zihintntl,+f,+d,+zfh,+v
nontemporal.lltest_nontemporal_P1_load_v4i32-mtriple=riscv32 -mattr=+zihintntl,+f,+d,+zfh,+v
nontemporal.lltest_nontemporal_PALL_load_v4i32-mtriple=riscv32 -mattr=+zihintntl,+f,+d,+zfh,+v
nontemporal.lltest_nontemporal_S1_load_v4i32-mtriple=riscv32 -mattr=+zihintntl,+f,+d,+zfh,+v
nontemporal.lltest_nontemporal_ALL_load_v4i32-mtriple=riscv32 -mattr=+zihintntl,+f,+d,+zfh,+v
nontemporal.lltest_nontemporal_load_v4i32-mtriple=riscv64 -mattr=+zihintntl,+f,+d,+zfh,+v
nontemporal.lltest_nontemporal_P1_load_v4i32-mtriple=riscv64 -mattr=+zihintntl,+f,+d,+zfh,+v
nontemporal.lltest_nontemporal_PALL_load_v4i32-mtriple=riscv64 -mattr=+zihintntl,+f,+d,+zfh,+v
nontemporal.lltest_nontemporal_S1_load_v4i32-mtriple=riscv64 -mattr=+zihintntl,+f,+d,+zfh,+v
nontemporal.lltest_nontemporal_ALL_load_v4i32-mtriple=riscv64 -mattr=+zihintntl,+f,+d,+zfh,+v
usub_sat.llfun12-mtriple=riscv32 -mattr=+m,+v
usub_sat.llfun13-mtriple=riscv32 -mattr=+m,+v
usub_sat.llfun14-mtriple=riscv32 -mattr=+m,+v
usub_sat.llfun12-mtriple=riscv32 -mattr=+m,+zbb,+v
usub_sat.llfun13-mtriple=riscv32 -mattr=+m,+zbb,+v
usub_sat.llfun14-mtriple=riscv32 -mattr=+m,+zbb,+v
usub_sat.llfun12-mtriple=riscv64 -mattr=+m,+v
usub_sat.llfun13-mtriple=riscv64 -mattr=+m,+v
usub_sat.llfun14-mtriple=riscv64 -mattr=+m,+v
usub_sat.llfun12-mtriple=riscv64 -mattr=+m,+zbb,+v
usub_sat.llfun13-mtriple=riscv64 -mattr=+m,+zbb,+v
usub_sat.llfun14-mtriple=riscv64 -mattr=+m,+zbb,+v
zero-call-used-regs-v.llused_arg-verify-machineinstrs -mtriple=riscv64 -mattr=+v
zero-call-used-regs-v.llused_arg_fixed_x10-verify-machineinstrs -mtriple=riscv64 -mattr=+v
nontemporal.58f873fe69.ll (mutant of nontemporal.ll)test_nontemporal_S1_load_v4i32-mtriple=riscv32 -mattr=+zihintntl,+f,+d,+zfh,+v
nontemporal.6c70945ac7.ll (mutant of nontemporal.ll)test_nontemporal_S1_load_v4i32-mtriple=riscv64 -mattr=+zihintntl,+f,+d,+zfh,+v
smulh.27e2c284a2.ll (mutant of smulh.ll)smulh_v4i32-mtriple=riscv64 -mattr=+m,+v
smulh.3fd7c1d093.ll (mutant of smulh.ll)smulh_v4i32-mtriple=riscv32 -mattr=+m,+v
umulh.268f2d03b4.ll (mutant of umulh.ll)umulh_v4i32-mtriple=riscv64 -mattr=+m,+v
umulh.b69e22fbaa.ll (mutant of umulh.ll)umulh_v4i32-mtriple=riscv32 -mattr=+m,+v
usub_sat.036244acf0.ll (mutant of usub_sat.ll)fun13-mtriple=riscv32 -mattr=+m,+zbb,+v
usub_sat.039cc47a7e.ll (mutant of usub_sat.ll)fun12-mtriple=riscv32 -mattr=+m,+v
usub_sat.07dfb21f40.ll (mutant of usub_sat.ll)fun12-mtriple=riscv64 -mattr=+m,+zbb,+v
usub_sat.27151f80a5.ll (mutant of usub_sat.ll)fun13-mtriple=riscv64 -mattr=+m,+zbb,+v
usub_sat.2ddff16fea.ll (mutant of usub_sat.ll)fun12-mtriple=riscv32 -mattr=+m,+zbb,+v
usub_sat.5e7dfafd95.ll (mutant of usub_sat.ll)fun12-mtriple=riscv64 -mattr=+m,+zbb,+v
usub_sat.5f7c8916fe.ll (mutant of usub_sat.ll)fun12-mtriple=riscv32 -mattr=+m,+zbb,+v
usub_sat.6231a2448c.ll (mutant of usub_sat.ll)fun13-mtriple=riscv32 -mattr=+m,+v
usub_sat.9e48ed2169.ll (mutant of usub_sat.ll)fun12-mtriple=riscv64 -mattr=+m,+v
usub_sat.b3fbbe3edb.ll (mutant of usub_sat.ll)fun12-mtriple=riscv64 -mattr=+m,+v
usub_sat.e9429eb692.ll (mutant of usub_sat.ll)fun13-mtriple=riscv64 -mattr=+m,+v
usub_sat.f4ab8d60c5.ll (mutant of usub_sat.ll)fun12-mtriple=riscv32 -mattr=+m,+v
zero-call-used-regs-v.4c55899875.ll (mutant of zero-call-used-regs-v.ll)used_arg-verify-machineinstrs -mtriple=riscv64 -mattr=+v
zero-call-used-regs-v.b24eac88b2.ll (mutant of zero-call-used-regs-v.ll)used_arg_fixed_x10-verify-machineinstrs -mtriple=riscv64 -mattr=+v

Generated 2026-10-15 08:05 UTC.