| Run: | explore-04ca53e65f-20261014-114124 |
| Kind: | fallback |
| Category: | legalize: G_FNEG s16 |
| Occurrences: | 78 in 15 configs, 2 test files |
| Snippet from: | half-bitmanip-dagcombines.ll @fneg via llvm-extract |
| Config: | -mtriple=riscv32 -target-abi ilp32 -mattr=+zfhmin -verify-machineinstrs |
| Local check: | reproduces at 04ca53e65f |
| Compiler Explorer: | not uploaded (over --godbolt-limit or disabled) |
; Function Attrs: nounwind
define half @fneg(half %a) #0 {
%1 = fneg half %a
ret half %1
}
attributes #0 = { nounwind }
llc -mtriple=riscv32 -target-abi ilp32 -mattr=+zfhmin -verify-machineinstrs -global-isel -global-isel-abort=2 -pass-remarks-missed=gisel.* snippet.ll -o - llc -mtriple=riscv32 -target-abi ilp32 -mattr=+zfhmin -verify-machineinstrs -global-isel=0 snippet.ll -o -
remark: <unknown>:0:0: unable to legalize instruction: %2:_(s16) = G_FNEG %0:_ (in function: fneg) warning: Instruction selection used fallback path for fneg
| Input | Function | Config |
|---|---|---|
| half-arith.ll | fneg_h | -mtriple=riscv32 -mattr=+zfhmin -verify-machineinstrs -target-abi ilp32f |
| half-arith.ll | fsgnjn_h | -mtriple=riscv32 -mattr=+zfhmin -verify-machineinstrs -target-abi ilp32f |
| half-arith.ll | fnmadd_h_3 | -mtriple=riscv32 -mattr=+zfhmin -verify-machineinstrs -target-abi ilp32f |
| half-arith.ll | fnmadd_nsz | -mtriple=riscv32 -mattr=+zfhmin -verify-machineinstrs -target-abi ilp32f |
| half-arith.ll | fneg_h | -mtriple=riscv32 -verify-machineinstrs |
| half-arith.ll | fsgnjn_h | -mtriple=riscv32 -verify-machineinstrs |
| half-arith.ll | fnmadd_h_3 | -mtriple=riscv32 -verify-machineinstrs |
| half-arith.ll | fnmadd_nsz | -mtriple=riscv32 -verify-machineinstrs |
| half-arith.ll | fneg_h | -mtriple=riscv64 -mattr=+zfhmin -verify-machineinstrs -target-abi lp64f |
| half-arith.ll | fsgnjn_h | -mtriple=riscv64 -mattr=+zfhmin -verify-machineinstrs -target-abi lp64f |
| half-arith.ll | fnmadd_h_3 | -mtriple=riscv64 -mattr=+zfhmin -verify-machineinstrs -target-abi lp64f |
| half-arith.ll | fnmadd_nsz | -mtriple=riscv64 -mattr=+zfhmin -verify-machineinstrs -target-abi lp64f |
| half-arith.ll | fneg_h | -mtriple=riscv64 -verify-machineinstrs |
| half-arith.ll | fsgnjn_h | -mtriple=riscv64 -verify-machineinstrs |
| half-arith.ll | fnmadd_h_3 | -mtriple=riscv64 -verify-machineinstrs |
| half-arith.ll | fnmadd_nsz | -mtriple=riscv64 -verify-machineinstrs |
| half-bitmanip-dagcombines.ll | fneg | -mtriple=riscv32 -target-abi ilp32 -mattr=+zfhmin -verify-machineinstrs |
| half-bitmanip-dagcombines.ll | fcopysign_fneg | -mtriple=riscv32 -target-abi ilp32 -mattr=+zfhmin -verify-machineinstrs |
| half-bitmanip-dagcombines.ll | fneg | -mtriple=riscv32 -target-abi ilp32 -mattr=+zhinx -verify-machineinstrs |
| half-bitmanip-dagcombines.ll | fcopysign_fneg | -mtriple=riscv32 -target-abi ilp32 -mattr=+zhinx -verify-machineinstrs |
| half-bitmanip-dagcombines.ll | fneg | -mtriple=riscv32 -target-abi ilp32 -mattr=+zhinxmin -verify-machineinstrs |
| half-bitmanip-dagcombines.ll | fcopysign_fneg | -mtriple=riscv32 -target-abi ilp32 -mattr=+zhinxmin -verify-machineinstrs |
| half-bitmanip-dagcombines.ll | fneg | -mtriple=riscv32 -verify-machineinstrs |
| half-bitmanip-dagcombines.ll | fcopysign_fneg | -mtriple=riscv32 -verify-machineinstrs |
| half-bitmanip-dagcombines.ll | fneg | -mtriple=riscv64 -target-abi lp64 -mattr=+zfhmin -verify-machineinstrs |
| half-bitmanip-dagcombines.ll | fcopysign_fneg | -mtriple=riscv64 -target-abi lp64 -mattr=+zfhmin -verify-machineinstrs |
| half-bitmanip-dagcombines.ll | fneg | -mtriple=riscv64 -target-abi lp64 -mattr=+zhinx -verify-machineinstrs |
| half-bitmanip-dagcombines.ll | fcopysign_fneg | -mtriple=riscv64 -target-abi lp64 -mattr=+zhinx -verify-machineinstrs |
| half-bitmanip-dagcombines.ll | fneg | -mtriple=riscv64 -target-abi lp64 -mattr=+zhinxmin -verify-machineinstrs |
| half-bitmanip-dagcombines.ll | fcopysign_fneg | -mtriple=riscv64 -target-abi lp64 -mattr=+zhinxmin -verify-machineinstrs |
| half-bitmanip-dagcombines.ll | fneg | -mtriple=riscv64 -target-abi lp64 -verify-machineinstrs |
| half-bitmanip-dagcombines.ll | fcopysign_fneg | -mtriple=riscv64 -target-abi lp64 -verify-machineinstrs |
| half-bitmanip-dagcombines.ll | fneg | -mtriple=riscv64 -verify-machineinstrs |
| half-bitmanip-dagcombines.ll | fcopysign_fneg | -mtriple=riscv64 -verify-machineinstrs |
| half-arith.14771ed169.ll (mutant of half-arith.ll) | fneg_h | -mtriple=riscv32 -verify-machineinstrs |
| half-arith.3977e63685.ll (mutant of half-arith.ll) | fneg_h | -mtriple=riscv32 -mattr=+zhinxmin -verify-machineinstrs -target-abi ilp32 |
| half-arith.4942e9178c.ll (mutant of half-arith.ll) | fneg_h | -mtriple=riscv64 -mattr=+zhinx -verify-machineinstrs -target-abi lp64 |
| half-arith.5b7750ee52.ll (mutant of half-arith.ll) | fneg_h | -mtriple=riscv32 -mattr=+zfhmin -verify-machineinstrs -target-abi ilp32f |
| half-arith.7264762a9f.ll (mutant of half-arith.ll) | fneg_h | -mtriple=riscv64 -verify-machineinstrs |
| half-arith.ac82549e8d.ll (mutant of half-arith.ll) | fneg_h | -mtriple=riscv64 -mattr=+zfhmin -verify-machineinstrs -target-abi lp64f |
| half-arith.f7a3079a5e.ll (mutant of half-arith.ll) | fneg_h | -mtriple=riscv32 -mattr=+zhinx -verify-machineinstrs -target-abi ilp32 |
| half-arith.f9dc99881c.ll (mutant of half-arith.ll) | fneg_h | -mtriple=riscv64 -mattr=+zhinxmin -verify-machineinstrs -target-abi lp64 |
| half-bitmanip-dagcombines.0647f92322.ll (mutant of half-bitmanip-dagcombines.ll) | fcopysign_fneg | -mtriple=riscv32 -verify-machineinstrs |
| half-bitmanip-dagcombines.0657488501.ll (mutant of half-bitmanip-dagcombines.ll) | fneg | -mtriple=riscv64 -target-abi lp64 -mattr=+zhinxmin -verify-machineinstrs |
| half-bitmanip-dagcombines.07e9bbabad.ll (mutant of half-bitmanip-dagcombines.ll) | fneg | -mtriple=riscv32 -target-abi ilp32 -mattr=+zhinxmin -verify-machineinstrs |
| half-bitmanip-dagcombines.0c09056097.ll (mutant of half-bitmanip-dagcombines.ll) | fneg | -mtriple=riscv32 -target-abi ilp32 -mattr=+zhinx -verify-machineinstrs |
| half-bitmanip-dagcombines.0f6a9f3279.ll (mutant of half-bitmanip-dagcombines.ll) | fneg | -mtriple=riscv64 -target-abi lp64 -mattr=+zfhmin -verify-machineinstrs |
| half-bitmanip-dagcombines.12eaeee45d.ll (mutant of half-bitmanip-dagcombines.ll) | fcopysign_fneg | -mtriple=riscv64 -target-abi lp64 -mattr=+zhinx -verify-machineinstrs |
| half-bitmanip-dagcombines.1e3e86b8b9.ll (mutant of half-bitmanip-dagcombines.ll) | fneg | -mtriple=riscv32 -target-abi ilp32 -mattr=+zhinxmin -verify-machineinstrs |
| half-bitmanip-dagcombines.304d3359f5.ll (mutant of half-bitmanip-dagcombines.ll) | fneg | -mtriple=riscv64 -target-abi lp64 -mattr=+zhinx -verify-machineinstrs |
Generated 2026-10-15 08:05 UTC.