fallback: legalize: G_LOAD <2 x s64>,p0

Run:	explore-04ca53e65f-20261014-114124
Kind:	fallback
Category:	legalize: G_LOAD <2 x s64>,p0
Occurrences:	38 in 11 configs, 6 test files
Snippet from:	nontemporal.ll @test_nontemporal_load_v2i64 via llvm-extract
Config:	`-mtriple=riscv32 -mattr=+zihintntl,+f,+d,+zfh`
Local check:	reproduces at 04ca53e65f
Compiler Explorer:	not uploaded (over --godbolt-limit or disabled)

Snippet:

define <2 x i64> @test_nontemporal_load_v2i64(ptr %p) {
  %1 = load <2 x i64>, ptr %p, align 16, !nontemporal !0
  ret <2 x i64> %1
}

!0 = !{i32 1}

Reproduce:

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

Local llc output:

remark: <unknown>:0:0: unable to legalize instruction: %2:_(<2 x s64>) = G_LOAD %0:_(p0) :: (non-temporal "riscv-nontemporal-domain-bit-0" "riscv-nontemporal-domain-bit-1" load (<2 x s64>) from %ir.p) (in function: test_nontemporal_load_v2i64)
warning: Instruction selection used fallback path for test_nontemporal_load_v2i64

Occurrences (38):

Input	Function	Config
nontemporal.ll	test_nontemporal_load_v2i64	`-mtriple=riscv32 -mattr=+zihintntl,+f,+d,+zfh`
nontemporal.ll	test_nontemporal_store_v2i64	`-mtriple=riscv32 -mattr=+zihintntl,+f,+d,+zfh`
nontemporal.ll	test_nontemporal_P1_load_v2i64	`-mtriple=riscv32 -mattr=+zihintntl,+f,+d,+zfh`
nontemporal.ll	test_nontemporal_P1_store_v2i64	`-mtriple=riscv32 -mattr=+zihintntl,+f,+d,+zfh`
nontemporal.ll	test_nontemporal_PALL_load_v2i64	`-mtriple=riscv32 -mattr=+zihintntl,+f,+d,+zfh`
nontemporal.ll	test_nontemporal_PALL_store_v2i64	`-mtriple=riscv32 -mattr=+zihintntl,+f,+d,+zfh`
nontemporal.ll	test_nontemporal_S1_load_v2i64	`-mtriple=riscv32 -mattr=+zihintntl,+f,+d,+zfh`
nontemporal.ll	test_nontemporal_S1_store_v2i64	`-mtriple=riscv32 -mattr=+zihintntl,+f,+d,+zfh`
nontemporal.ll	test_nontemporal_ALL_load_v2i64	`-mtriple=riscv32 -mattr=+zihintntl,+f,+d,+zfh`
nontemporal.ll	test_nontemporal_ALL_store_v2i64	`-mtriple=riscv32 -mattr=+zihintntl,+f,+d,+zfh`
nontemporal.ll	test_nontemporal_load_v2i64	`-mtriple=riscv32 -mattr=+zihintntl,+f,+d,+zfh,+c`
nontemporal.ll	test_nontemporal_store_v2i64	`-mtriple=riscv32 -mattr=+zihintntl,+f,+d,+zfh,+c`
nontemporal.ll	test_nontemporal_P1_load_v2i64	`-mtriple=riscv32 -mattr=+zihintntl,+f,+d,+zfh,+c`
nontemporal.ll	test_nontemporal_P1_store_v2i64	`-mtriple=riscv32 -mattr=+zihintntl,+f,+d,+zfh,+c`
nontemporal.ll	test_nontemporal_PALL_load_v2i64	`-mtriple=riscv32 -mattr=+zihintntl,+f,+d,+zfh,+c`
nontemporal.ll	test_nontemporal_PALL_store_v2i64	`-mtriple=riscv32 -mattr=+zihintntl,+f,+d,+zfh,+c`
nontemporal.ll	test_nontemporal_S1_load_v2i64	`-mtriple=riscv32 -mattr=+zihintntl,+f,+d,+zfh,+c`
nontemporal.ll	test_nontemporal_S1_store_v2i64	`-mtriple=riscv32 -mattr=+zihintntl,+f,+d,+zfh,+c`
nontemporal.ll	test_nontemporal_ALL_load_v2i64	`-mtriple=riscv32 -mattr=+zihintntl,+f,+d,+zfh,+c`
nontemporal.ll	test_nontemporal_ALL_store_v2i64	`-mtriple=riscv32 -mattr=+zihintntl,+f,+d,+zfh,+c`
nontemporal.ll	test_nontemporal_load_v2i64	`-mtriple=riscv64 -mattr=+zihintntl,+f,+d,+zfh`
nontemporal.ll	test_nontemporal_P1_load_v2i64	`-mtriple=riscv64 -mattr=+zihintntl,+f,+d,+zfh`
nontemporal.ll	test_nontemporal_PALL_load_v2i64	`-mtriple=riscv64 -mattr=+zihintntl,+f,+d,+zfh`
nontemporal.ll	test_nontemporal_S1_load_v2i64	`-mtriple=riscv64 -mattr=+zihintntl,+f,+d,+zfh`
nontemporal.ll	test_nontemporal_ALL_load_v2i64	`-mtriple=riscv64 -mattr=+zihintntl,+f,+d,+zfh`
nontemporal.ll	test_nontemporal_load_v2i64	`-mtriple=riscv64 -mattr=+zihintntl,+f,+d,+zfh,+c`
nontemporal.ll	test_nontemporal_P1_load_v2i64	`-mtriple=riscv64 -mattr=+zihintntl,+f,+d,+zfh,+c`
nontemporal.ll	test_nontemporal_PALL_load_v2i64	`-mtriple=riscv64 -mattr=+zihintntl,+f,+d,+zfh,+c`
nontemporal.ll	test_nontemporal_S1_load_v2i64	`-mtriple=riscv64 -mattr=+zihintntl,+f,+d,+zfh,+c`
nontemporal.ll	test_nontemporal_ALL_load_v2i64	`-mtriple=riscv64 -mattr=+zihintntl,+f,+d,+zfh,+c`
machine-outliner-and-machine-copy-propagation.e3e3fc7402.ll (mutant of machine-outliner-and-machine-copy-propagation.ll)	main	`-mtriple=riscv64 -riscv-enable-copy-propagation -enable-machine-outliner -verify-machineinstrs`
pr228084.06f668a091.ll (mutant of pr228084.ll)	f	`-mtriple=riscv64 -verify-machineinstrs`
spacemitx60-stack-reorder.8ce0dfecb0.ll (mutant of spacemitx60-stack-reorder.ll)	test_stack_sort	`-mtriple=riscv64 -mcpu=spacemit-x60 -verify-machineinstrs`
spacemitx60-stack-reorder.a5c177523d.ll (mutant of spacemitx60-stack-reorder.ll)	test_stack_sort	`-mtriple=riscv64 -verify-machineinstrs`
stack-protector-target.b3cbe01682.ll (mutant of stack-protector-target.ll)	func	`-mtriple=riscv64-openbsd`
stack-protector-target.c81012b7a8.ll (mutant of stack-protector-target.ll)	func	`-mtriple=riscv64-linux`
xqcilsm-memset.5edfb50735.ll (mutant of xqcilsm-memset.ll)	test6c_s	`-mtriple=riscv32 -verify-machineinstrs -mattr=+xqcilsm`
xqcilsm-memset.a050e2819a.ll (mutant of xqcilsm-memset.ll)	test6c_s	`-mtriple=riscv32 -verify-machineinstrs`

Generated 2026-10-15 08:05 UTC.