fallback: translate: uitofp i32

Run:	explore-bc8218b282-20261015-075519
Kind:	fallback
Category:	translate: uitofp i32
Occurrences:	24 in 6 configs, 1 test files
Snippet from:	bfloat-convert.ll @fcvt_bf16_wu via llvm-extract
Config:	`-mtriple=riscv32 -mattr=+d -verify-machineinstrs -target-abi ilp32d`
Local check:	reproduces at bc8218b282
Compiler Explorer:	not uploaded (over --godbolt-limit or disabled)

Snippet:

; Function Attrs: nounwind
define bfloat @fcvt_bf16_wu(i32 %a) #0 {
  %1 = uitofp i32 %a to bfloat
  ret bfloat %1
}

attributes #0 = { nounwind }

Reproduce:

llc -mtriple=riscv32 -mattr=+d -verify-machineinstrs -target-abi ilp32d -global-isel -global-isel-abort=2 -pass-remarks-missed=gisel.* snippet.ll -o -
llc -mtriple=riscv32 -mattr=+d -verify-machineinstrs -target-abi ilp32d -global-isel=0 snippet.ll -o -

Local llc output:

remark: <unknown>:0:0: unable to translate instruction: uitofp: '  %1 = uitofp i32 %a to bfloat' (in function: fcvt_bf16_wu)
warning: Instruction selection used fallback path for fcvt_bf16_wu

Occurrences (24):

Input	Function	Config
bfloat-convert.ll	fcvt_bf16_wu	`-mtriple=riscv32 -mattr=+d -verify-machineinstrs -target-abi ilp32d`
bfloat-convert.ll	fcvt_bf16_wu_load	`-mtriple=riscv32 -mattr=+d -verify-machineinstrs -target-abi ilp32d`
bfloat-convert.ll	fcvt_bf16_wu_demanded_bits	`-mtriple=riscv32 -mattr=+d -verify-machineinstrs -target-abi ilp32d`
bfloat-convert.ll	fcvt_bf16_wu	`-mtriple=riscv32 -mattr=+d,+zfbfmin -verify-machineinstrs -target-abi ilp32d`
bfloat-convert.ll	fcvt_bf16_wu_load	`-mtriple=riscv32 -mattr=+d,+zfbfmin -verify-machineinstrs -target-abi ilp32d`
bfloat-convert.ll	fcvt_bf16_wu_demanded_bits	`-mtriple=riscv32 -mattr=+d,+zfbfmin -verify-machineinstrs -target-abi ilp32d`
bfloat-convert.ll	fcvt_bf16_wu	`-mtriple=riscv32 -mattr=+zfbfmin -verify-machineinstrs -target-abi ilp32f`
bfloat-convert.ll	fcvt_bf16_wu_load	`-mtriple=riscv32 -mattr=+zfbfmin -verify-machineinstrs -target-abi ilp32f`
bfloat-convert.ll	fcvt_bf16_wu_demanded_bits	`-mtriple=riscv32 -mattr=+zfbfmin -verify-machineinstrs -target-abi ilp32f`
bfloat-convert.ll	fcvt_bf16_wu	`-mtriple=riscv64 -mattr=+d -verify-machineinstrs -target-abi lp64d`
bfloat-convert.ll	fcvt_bf16_wu_load	`-mtriple=riscv64 -mattr=+d -verify-machineinstrs -target-abi lp64d`
bfloat-convert.ll	fcvt_bf16_wu_demanded_bits	`-mtriple=riscv64 -mattr=+d -verify-machineinstrs -target-abi lp64d`
bfloat-convert.ll	fcvt_bf16_wu	`-mtriple=riscv64 -mattr=+d,+zfbfmin -verify-machineinstrs -target-abi lp64d`
bfloat-convert.ll	fcvt_bf16_wu_load	`-mtriple=riscv64 -mattr=+d,+zfbfmin -verify-machineinstrs -target-abi lp64d`
bfloat-convert.ll	fcvt_bf16_wu_demanded_bits	`-mtriple=riscv64 -mattr=+d,+zfbfmin -verify-machineinstrs -target-abi lp64d`
bfloat-convert.ll	fcvt_bf16_wu	`-mtriple=riscv64 -mattr=+zfbfmin -verify-machineinstrs -target-abi lp64f`
bfloat-convert.ll	fcvt_bf16_wu_load	`-mtriple=riscv64 -mattr=+zfbfmin -verify-machineinstrs -target-abi lp64f`
bfloat-convert.ll	fcvt_bf16_wu_demanded_bits	`-mtriple=riscv64 -mattr=+zfbfmin -verify-machineinstrs -target-abi lp64f`
bfloat-convert.10e9157779.ll (mutant of bfloat-convert.ll)	fcvt_bf16_wu_demanded_bits	`-mtriple=riscv32 -mattr=+d -verify-machineinstrs -target-abi ilp32d`
bfloat-convert.1883f0d578.ll (mutant of bfloat-convert.ll)	fcvt_bf16_wu_demanded_bits	`-mtriple=riscv64 -mattr=+d -verify-machineinstrs -target-abi lp64d`
bfloat-convert.22bf2ba46c.ll (mutant of bfloat-convert.ll)	fcvt_bf16_wu_demanded_bits	`-mtriple=riscv64 -mattr=+d,+zfbfmin -verify-machineinstrs -target-abi lp64d`
bfloat-convert.91b2f75fd2.ll (mutant of bfloat-convert.ll)	fcvt_bf16_wu_demanded_bits	`-mtriple=riscv64 -mattr=+zfbfmin -verify-machineinstrs -target-abi lp64f`
bfloat-convert.cc6704e58f.ll (mutant of bfloat-convert.ll)	fcvt_bf16_wu_demanded_bits	`-mtriple=riscv32 -mattr=+zfbfmin -verify-machineinstrs -target-abi ilp32f`
bfloat-convert.ec66f29e8d.ll (mutant of bfloat-convert.ll)	fcvt_bf16_wu_demanded_bits	`-mtriple=riscv32 -mattr=+d,+zfbfmin -verify-machineinstrs -target-abi ilp32d`

Generated 2026-10-15 08:05 UTC.