fallback: legalize: G_STORE p1,p0
| Run: | explore-bc8218b282-20261015-075519 |
| Kind: | fallback |
| Category: | legalize: G_STORE p1,p0 NEW |
| Occurrences: | 4 in 2 configs, 1 test files |
| Snippet from: | addrspacecast.24d6d222e4.ll (mutant of addrspacecast.ll) @cast0 via llvm-extract |
| Config: | -mtriple=riscv32 -verify-machineinstrs |
| Local check: | reproduces at bc8218b282 |
| Compiler Explorer: | not uploaded (over --godbolt-limit or disabled) |
Snippet:
@G = external global <4 x i1>
define void @cast0(ptr addrspace(1) %ptr) {
%ptr0 = addrspacecast ptr addrspace(1) %ptr to ptr
%L1 = load <4 x float>, ptr %ptr0, align 16
%L = load <4 x float>, ptr %ptr0, align 16
store i32 0, ptr %ptr0, align 4
%G = getelementptr <2 x i64>, ptr addrspace(1) %ptr, i8 -128
%C = fcmp ueq <4 x float> %L, %L1
store <4 x i1> %C, ptr @G, align 1
store ptr addrspace(1) %G, ptr poison, align 8
ret void
}
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: G_STORE %6:_(p1), %9:_(p0) :: (store (p1) into `ptr poison`, align 8) (in function: cast0)
warning: Instruction selection used fallback path for cast0
Occurrences (4):
| Input | Function | Config |
|---|
| addrspacecast.22a767a120.ll (mutant of addrspacecast.ll) | cast0 | -mtriple=riscv32 -verify-machineinstrs |
| addrspacecast.24d6d222e4.ll (mutant of addrspacecast.ll) | cast0 | -mtriple=riscv32 -verify-machineinstrs |
| addrspacecast.2e6d8b7006.ll (mutant of addrspacecast.ll) | cast0 | -mtriple=riscv64 -verify-machineinstrs |
| addrspacecast.3a1371d033.ll (mutant of addrspacecast.ll) | cast0 | -mtriple=riscv64 -verify-machineinstrs |
Generated 2026-10-15 08:05 UTC.