| Run: | explore-bc8218b282-20261015-075519 |
| Kind: | fallback |
| Category: | legalize: G_STRICT_FSQRT s16 |
| Occurrences: | 24 in 24 configs, 3 test files |
| Snippet from: | half-arith-strict.ll @fsqrt_h via llvm-extract |
| Config: | -mtriple=riscv32 -mattr=+zfh -verify-machineinstrs -disable-strictnode-mutation -target-abi ilp32f |
| Local check: | reproduces at bc8218b282 |
| Compiler Explorer: | not uploaded (over --godbolt-limit or disabled) |
; Function Attrs: nounwind strictfp
define half @fsqrt_h(half %a) #0 {
%1 = call half @llvm.experimental.constrained.sqrt.f16(half %a, metadata !"round.dynamic", metadata !"fpexcept.strict") #2
ret half %1
}
; Function Attrs: nocallback nofree nosync nounwind strictfp willreturn memory(inaccessiblemem: readwrite)
declare half @llvm.experimental.constrained.sqrt.f16(half, metadata, metadata) #1
attributes #0 = { nounwind strictfp }
attributes #1 = { nocallback nofree nosync nounwind strictfp willreturn memory(inaccessiblemem: readwrite) }
attributes #2 = { strictfp }
llc -mtriple=riscv32 -mattr=+zfh -verify-machineinstrs -disable-strictnode-mutation -target-abi ilp32f -global-isel -global-isel-abort=2 -pass-remarks-missed=gisel.* snippet.ll -o - llc -mtriple=riscv32 -mattr=+zfh -verify-machineinstrs -disable-strictnode-mutation -target-abi ilp32f -global-isel=0 snippet.ll -o -
remark: <unknown>:0:0: unable to legalize instruction: %1:_(s16) = G_STRICT_FSQRT %0:_ (in function: fsqrt_h) warning: Instruction selection used fallback path for fsqrt_h
| Input | Function | Config |
|---|---|---|
| half-arith-strict.ll | fsqrt_h | -mtriple=riscv32 -mattr=+zfh -verify-machineinstrs -disable-strictnode-mutation -target-abi ilp32f |
| half-arith-strict.ll | fsqrt_h | -mtriple=riscv32 -mattr=+zfhmin -verify-machineinstrs -disable-strictnode-mutation -target-abi ilp32f |
| half-arith-strict.ll | fsqrt_h | -mtriple=riscv32 -mattr=+zhinx -verify-machineinstrs -disable-strictnode-mutation -target-abi ilp32 |
| half-arith-strict.ll | fsqrt_h | -mtriple=riscv32 -mattr=+zhinxmin -verify-machineinstrs -disable-strictnode-mutation -target-abi ilp32 |
| half-arith-strict.ll | fsqrt_h | -mtriple=riscv64 -mattr=+zfh -verify-machineinstrs -disable-strictnode-mutation -target-abi lp64f |
| half-arith-strict.ll | fsqrt_h | -mtriple=riscv64 -mattr=+zfhmin -verify-machineinstrs -disable-strictnode-mutation -target-abi lp64f |
| half-arith-strict.ll | fsqrt_h | -mtriple=riscv64 -mattr=+zhinx -verify-machineinstrs -disable-strictnode-mutation -target-abi lp64 |
| half-arith-strict.ll | fsqrt_h | -mtriple=riscv64 -mattr=+zhinxmin -verify-machineinstrs -disable-strictnode-mutation -target-abi lp64 |
| zfh-half-intrinsics-strict.ll | sqrt_f16 | -mtriple=riscv32 -mattr=+d -mattr=+zfh -verify-machineinstrs -target-abi ilp32d -disable-strictnode-mutation |
| zfh-half-intrinsics-strict.ll | sqrt_f16 | -mtriple=riscv32 -mattr=+zdinx -mattr=+zhinx -verify-machineinstrs -target-abi ilp32 |
| zfh-half-intrinsics-strict.ll | sqrt_f16 | -mtriple=riscv32 -mattr=+zfh -verify-machineinstrs -target-abi ilp32f -disable-strictnode-mutation |
| zfh-half-intrinsics-strict.ll | sqrt_f16 | -mtriple=riscv32 -mattr=+zhinx -verify-machineinstrs -target-abi ilp32 -disable-strictnode-mutation |
| zfh-half-intrinsics-strict.ll | sqrt_f16 | -mtriple=riscv64 -mattr=+d -mattr=+zfh -verify-machineinstrs -target-abi lp64d -disable-strictnode-mutation |
| zfh-half-intrinsics-strict.ll | sqrt_f16 | -mtriple=riscv64 -mattr=+zdinx -mattr=+zhinx -verify-machineinstrs -target-abi lp64 |
| zfh-half-intrinsics-strict.ll | sqrt_f16 | -mtriple=riscv64 -mattr=+zfh -verify-machineinstrs -target-abi lp64f -disable-strictnode-mutation |
| zfh-half-intrinsics-strict.ll | sqrt_f16 | -mtriple=riscv64 -mattr=+zhinx -verify-machineinstrs -target-abi lp64 -disable-strictnode-mutation |
| zfhmin-half-intrinsics-strict.ll | sqrt_f16 | -mtriple=riscv32 -mattr=+d -mattr=+zfhmin -verify-machineinstrs -target-abi ilp32d -disable-strictnode-mutation |
| zfhmin-half-intrinsics-strict.ll | sqrt_f16 | -mtriple=riscv32 -mattr=+zdinx -mattr=+zhinxmin -verify-machineinstrs -target-abi ilp32 |
| zfhmin-half-intrinsics-strict.ll | sqrt_f16 | -mtriple=riscv32 -mattr=+zfhmin -verify-machineinstrs -target-abi ilp32f -disable-strictnode-mutation |
| zfhmin-half-intrinsics-strict.ll | sqrt_f16 | -mtriple=riscv32 -mattr=+zhinxmin -verify-machineinstrs -target-abi ilp32 -disable-strictnode-mutation |
| zfhmin-half-intrinsics-strict.ll | sqrt_f16 | -mtriple=riscv64 -mattr=+d -mattr=+zfhmin -verify-machineinstrs -target-abi lp64d -disable-strictnode-mutation |
| zfhmin-half-intrinsics-strict.ll | sqrt_f16 | -mtriple=riscv64 -mattr=+zdinx -mattr=+zhinxmin -verify-machineinstrs -target-abi lp64 |
| zfhmin-half-intrinsics-strict.ll | sqrt_f16 | -mtriple=riscv64 -mattr=+zfhmin -verify-machineinstrs -target-abi lp64f -disable-strictnode-mutation |
| zfhmin-half-intrinsics-strict.ll | sqrt_f16 | -mtriple=riscv64 -mattr=+zhinxmin -verify-machineinstrs -target-abi lp64 -disable-strictnode-mutation |
Generated 2026-10-15 08:05 UTC.