fallback: legalize: G_ZEXTLOAD s256,p0,s64
| Run: | explore-bc8218b282-20261015-075519 |
| Kind: | fallback |
| Category: | legalize: G_ZEXTLOAD s256,p0,s64 |
| Occurrences: | 2 in 1 configs, 1 test files |
| Snippet from: | bitint-fp-conv-200.ll @test_bitint_200_add via llvm-extract |
| Config: | -mtriple=riscv32 -verify-machineinstrs |
| Local check: | reproduces at bc8218b282 |
| Compiler Explorer: | not uploaded (over --godbolt-limit or disabled) |
Snippet:
; Function Attrs: nounwind
define void @test_bitint_200_add(ptr %a, ptr %b, ptr %out) #0 {
%1 = load i200, ptr %a, align 8
%2 = load i200, ptr %b, align 8
%3 = add i200 %1, %2
store i200 %3, ptr %out, align 8
ret void
}
attributes #0 = { nounwind }
Reproduce:
llc -mtriple=riscv32 -verify-machineinstrs -global-isel -global-isel-abort=2 -pass-remarks-missed=gisel.* snippet.ll -o -
llc -mtriple=riscv32 -verify-machineinstrs -global-isel=0 snippet.ll -o -
Local llc output:
remark: <unknown>:0:0: unable to legalize instruction: %196:_(s256) = G_ZEXTLOAD %157:_(p0) :: (load (s64) from %ir.b + 16) (in function: test_bitint_200_add)
warning: Instruction selection used fallback path for test_bitint_200_add
Occurrences (2):
| Input | Function | Config |
|---|
| bitint-fp-conv-200.ll | test_bitint_200_add | -mtriple=riscv32 -verify-machineinstrs |
| bitint-fp-conv-200.307d5a1e23.ll (mutant of bitint-fp-conv-200.ll) | test_bitint_200_add | -mtriple=riscv32 -verify-machineinstrs |
Generated 2026-10-15 08:05 UTC.