fallback: legalize: G_ZEXTLOAD s128,p0,s64
| Run: | explore-bc8218b282-20261015-075519 |
| Kind: | fallback |
| Category: | legalize: G_ZEXTLOAD s128,p0,s64 |
| Occurrences: | 14 in 5 configs, 4 test files |
| Snippet from: | condops.ll @single_bit3 via llvm-extract |
| Config: | -mtriple=riscv32 -target-abi=ilp32f -mattr=+f,+zbs |
| Local check: | reproduces at bc8218b282 |
| Compiler Explorer: | not uploaded (over --godbolt-limit or disabled) |
Snippet:
define i64 @single_bit3(i80 %x, i64 %y) {
entry:
%and = and i80 %x, 18446744073709551616
%tobool.not = icmp eq i80 %and, 0
%cond = select i1 %tobool.not, i64 0, i64 %y
ret i64 %cond
}
Reproduce:
llc -mtriple=riscv32 -target-abi=ilp32f -mattr=+f,+zbs -global-isel -global-isel-abort=2 -pass-remarks-missed=gisel.* snippet.ll -o -
llc -mtriple=riscv32 -target-abi=ilp32f -mattr=+f,+zbs -global-isel=0 snippet.ll -o -
Local llc output:
remark: <unknown>:0:0: unable to legalize instruction: %58:_(s128) = G_ZEXTLOAD %2:_(p0) :: (load (s64)) (in function: single_bit3)
warning: Instruction selection used fallback path for single_bit3
Occurrences (14):
| Input | Function | Config |
|---|
| condops.ll | single_bit3 | -mtriple=riscv32 -target-abi=ilp32f -mattr=+f,+zbs |
| condops.ll | single_bit3 | -mtriple=riscv32 -target-abi=ilp32f -mattr=+f,+zbs,+zicond |
| pr56110.ll | foo_set | -mtriple=riscv32 |
| pr56110.ll | foo_set | -mtriple=riscv32 -mattr=+unaligned-scalar-mem |
| smulh.ll | smulh_i96 | -mtriple=riscv32 -mattr=+m |
| umulh.ll | umulh_i96 | -mtriple=riscv32 -mattr=+m |
| pr56110.524a37f67d.ll (mutant of pr56110.ll) | foo_set | -mtriple=riscv32 -mattr=+unaligned-scalar-mem |
| pr56110.6090d67698.ll (mutant of pr56110.ll) | foo_set | -mtriple=riscv32 |
| pr56110.6f7819584f.ll (mutant of pr56110.ll) | foo_set | -mtriple=riscv32 -mattr=+unaligned-scalar-mem |
| pr56110.8e65e6f655.ll (mutant of pr56110.ll) | foo_set | -mtriple=riscv32 |
| pr56110.a1f7c901a7.ll (mutant of pr56110.ll) | foo_set | -mtriple=riscv32 -mattr=+unaligned-scalar-mem |
| pr56110.a8595dbd70.ll (mutant of pr56110.ll) | foo_set | -mtriple=riscv32 -mattr=+unaligned-scalar-mem |
| pr56110.b75e0a55a8.ll (mutant of pr56110.ll) | foo_set | -mtriple=riscv32 |
| pr56110.ba77ebb3e5.ll (mutant of pr56110.ll) | foo_set | -mtriple=riscv32 |
Generated 2026-10-15 08:05 UTC.