| Run: | explore-04ca53e65f-20261014-114124 |
| Kind: | fallback |
| Category: | legalize: G_FABS s16 |
| Occurrences: | 24 in 13 configs, 2 test files |
| Snippet from: | half-bitmanip-dagcombines.ll @fabs 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 @fabs(half %a) #0 {
%1 = call half @llvm.fabs.f16(half %a)
ret half %1
}
; Function Attrs: nocallback nocreateundeforpoison nofree nosync nounwind speculatable willreturn memory(none)
declare half @llvm.fabs.f16(half) #1
attributes #0 = { nounwind }
attributes #1 = { nocallback nocreateundeforpoison nofree nosync nounwind speculatable willreturn memory(none) }
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_FABS %0:_ (in function: fabs) warning: Instruction selection used fallback path for fabs
| Input | Function | Config |
|---|---|---|
| half-bitmanip-dagcombines.ll | fabs | -mtriple=riscv32 -target-abi ilp32 -mattr=+zfhmin -verify-machineinstrs |
| half-bitmanip-dagcombines.ll | fabs | -mtriple=riscv32 -target-abi ilp32 -mattr=+zhinx -verify-machineinstrs |
| half-bitmanip-dagcombines.ll | fabs | -mtriple=riscv32 -target-abi ilp32 -mattr=+zhinxmin -verify-machineinstrs |
| half-bitmanip-dagcombines.ll | fabs | -mtriple=riscv32 -verify-machineinstrs |
| half-bitmanip-dagcombines.ll | fabs | -mtriple=riscv64 -target-abi lp64 -mattr=+zfhmin -verify-machineinstrs |
| half-bitmanip-dagcombines.ll | fabs | -mtriple=riscv64 -target-abi lp64 -mattr=+zhinx -verify-machineinstrs |
| half-bitmanip-dagcombines.ll | fabs | -mtriple=riscv64 -target-abi lp64 -mattr=+zhinxmin -verify-machineinstrs |
| half-bitmanip-dagcombines.ll | fabs | -mtriple=riscv64 -target-abi lp64 -verify-machineinstrs |
| half-bitmanip-dagcombines.ll | fabs | -mtriple=riscv64 -verify-machineinstrs |
| half-intrinsics.ll | fabs_f16 | -mtriple=riscv32 -mattr=+d -mattr=+zfhmin -verify-machineinstrs -target-abi ilp32d |
| half-intrinsics.ll | fabs_f16 | -mtriple=riscv32 -mattr=+zfhmin -verify-machineinstrs -target-abi ilp32f |
| half-intrinsics.ll | fabs_f16 | -mtriple=riscv32 -verify-machineinstrs |
| half-intrinsics.ll | fabs_f16 | -mtriple=riscv64 -mattr=+d -mattr=+zfhmin -verify-machineinstrs -target-abi lp64d |
| half-intrinsics.ll | fabs_f16 | -mtriple=riscv64 -mattr=+zfhmin -verify-machineinstrs -target-abi lp64f |
| half-intrinsics.ll | fabs_f16 | -mtriple=riscv64 -verify-machineinstrs |
| half-bitmanip-dagcombines.284d5ee81e.ll (mutant of half-bitmanip-dagcombines.ll) | fabs | -mtriple=riscv32 -verify-machineinstrs |
| half-bitmanip-dagcombines.53fd5bd75d.ll (mutant of half-bitmanip-dagcombines.ll) | fabs | -mtriple=riscv32 -target-abi ilp32 -mattr=+zfhmin -verify-machineinstrs |
| half-bitmanip-dagcombines.6833d9876d.ll (mutant of half-bitmanip-dagcombines.ll) | fabs | -mtriple=riscv32 -target-abi ilp32 -mattr=+zhinx -verify-machineinstrs |
| half-bitmanip-dagcombines.6cfe7595d6.ll (mutant of half-bitmanip-dagcombines.ll) | fabs | -mtriple=riscv32 -target-abi ilp32 -mattr=+zhinxmin -verify-machineinstrs |
| half-bitmanip-dagcombines.86cdd0cdde.ll (mutant of half-bitmanip-dagcombines.ll) | fabs | -mtriple=riscv64 -verify-machineinstrs |
| half-bitmanip-dagcombines.9efc00f189.ll (mutant of half-bitmanip-dagcombines.ll) | fabs | -mtriple=riscv64 -target-abi lp64 -mattr=+zfhmin -verify-machineinstrs |
| half-bitmanip-dagcombines.ca9f87be5a.ll (mutant of half-bitmanip-dagcombines.ll) | fabs | -mtriple=riscv64 -target-abi lp64 -mattr=+zhinxmin -verify-machineinstrs |
| half-bitmanip-dagcombines.d2538ae040.ll (mutant of half-bitmanip-dagcombines.ll) | fabs | -mtriple=riscv64 -target-abi lp64 -mattr=+zhinx -verify-machineinstrs |
| half-bitmanip-dagcombines.e680c646b4.ll (mutant of half-bitmanip-dagcombines.ll) | fabs | -mtriple=riscv64 -target-abi lp64 -verify-machineinstrs |
Generated 2026-10-15 08:05 UTC.