fallback: translate: call llvm.experimental.constrained.lrint.i64.f64
| Run: | explore-bc8218b282-20261015-075519 |
| Kind: | fallback |
| Category: | translate: call llvm.experimental.constrained.lrint.i64.f64 |
| Occurrences: | 6 in 3 configs, 1 test files |
| Snippet from: | double-intrinsics-strict.ll @lrint_f64 via llvm-extract |
| Config: | -mtriple=riscv64 -mattr=+d -verify-machineinstrs -disable-strictnode-mutation -target-abi=lp64d |
| Local check: | reproduces at bc8218b282 |
| Compiler Explorer: | not uploaded (over --godbolt-limit or disabled) |
Snippet:
; Function Attrs: nounwind strictfp
define i64 @lrint_f64(double %a) #0 {
%1 = call i64 @llvm.experimental.constrained.lrint.i64.f64(double %a, metadata !"round.dynamic", metadata !"fpexcept.strict") #2
ret i64 %1
}
; Function Attrs: nocallback nofree nosync nounwind strictfp willreturn memory(inaccessiblemem: readwrite)
declare i64 @llvm.experimental.constrained.lrint.i64.f64(double, metadata, metadata) #1
attributes #0 = { nounwind strictfp }
attributes #1 = { nocallback nofree nosync nounwind strictfp willreturn memory(inaccessiblemem: readwrite) }
attributes #2 = { strictfp }
Reproduce:
llc -mtriple=riscv64 -mattr=+d -verify-machineinstrs -disable-strictnode-mutation -target-abi=lp64d -global-isel -global-isel-abort=2 -pass-remarks-missed=gisel.* snippet.ll -o -
llc -mtriple=riscv64 -mattr=+d -verify-machineinstrs -disable-strictnode-mutation -target-abi=lp64d -global-isel=0 snippet.ll -o -
Local llc output:
remark: <unknown>:0:0: unable to translate instruction: call llvm.experimental.constrained.lrint.i64.f64: ' %1 = call i64 @llvm.experimental.constrained.lrint.i64.f64(double %a, metadata !"round.dynamic", metadata !"fpexcept.strict") #2' (in function: lrint_f64)
warning: Instruction selection used fallback path for lrint_f64
Occurrences (6):
| Input | Function | Config |
|---|
| double-intrinsics-strict.ll | lrint_f64 | -mtriple=riscv64 -mattr=+d -verify-machineinstrs -disable-strictnode-mutation -target-abi=lp64d |
| double-intrinsics-strict.ll | lrint_f64 | -mtriple=riscv64 -mattr=+zdinx -verify-machineinstrs -disable-strictnode-mutation -target-abi=lp64 |
| double-intrinsics-strict.ll | lrint_f64 | -mtriple=riscv64 -verify-machineinstrs -disable-strictnode-mutation |
| double-intrinsics-strict.2bc804fd0a.ll (mutant of double-intrinsics-strict.ll) | lrint_f64 | -mtriple=riscv64 -mattr=+zdinx -verify-machineinstrs -disable-strictnode-mutation -target-abi=lp64 |
| double-intrinsics-strict.777cddb927.ll (mutant of double-intrinsics-strict.ll) | lrint_f64 | -mtriple=riscv64 -mattr=+d -verify-machineinstrs -disable-strictnode-mutation -target-abi=lp64d |
| double-intrinsics-strict.da3c2fe608.ll (mutant of double-intrinsics-strict.ll) | lrint_f64 | -mtriple=riscv64 -verify-machineinstrs -disable-strictnode-mutation |
Generated 2026-10-15 08:05 UTC.