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structs as errors in fallibles

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Valdemar Høgsvig Lorenzen
2026-08-08 22:49:31 +02:00
parent e0f1d2d7cb
commit 729488e702
5 changed files with 80 additions and 5 deletions
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compiler/llvm/llvm.odin
+16
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@@ -1050,6 +1050,16 @@ emit_instruction_stream :: proc(
fmt.sbprintf(&emitter.builder, " %%fallible_payload%d = getelementptr i8, ptr %%fallible_slot%d, i64 %d\n", instruction_index, instruction_index, payload_offset)
fmt.sbprintf(&emitter.builder, " call void @llvm.memcpy.p0.p0.i64(ptr %%fallible_payload%d, ptr %%fallible_error_payload%d, i64 %d, i1 false)\n", instruction_index, instruction_index, error_payload_size)
}
} else if types.is_struct(error_type, &emitter.module.types) {
if !valid_value(instructions, instruction.args[0], error_type, &emitter.module.types) {
emit_recovery_value(emitter, instruction_index, instruction, "invalid fallible struct error operand")
continue
}
fmt.sbprintf(&emitter.builder, " store i16 1, ptr %%fallible_slot%d\n", instruction_index)
fmt.sbprintf(&emitter.builder, " %%fallible_payload%d = getelementptr i8, ptr %%fallible_slot%d, i64 %d\n", instruction_index, instruction_index, payload_offset)
fmt.sbprintf(&emitter.builder, " store %s ", llvm_type(error_type, &emitter.module.types))
write_operand(&emitter.builder, instructions, instruction.args[0], error_type, &emitter.module.types)
fmt.sbprintf(&emitter.builder, ", ptr %%fallible_payload%d\n", instruction_index)
}
fmt.sbprintf(&emitter.builder, " %%v%d = load %s, ptr %%fallible_slot%d\n", instruction_index, type_name, instruction_index)
continue
@@ -1389,6 +1399,12 @@ emit_instruction_stream :: proc(
fmt.sbprintf(&emitter.builder, " %%v%d = load %s, ptr %%fallible_error_slot%d\n", instruction_index, type_name, instruction_index)
continue
}
if types.is_struct(error_type, &emitter.module.types) {
source_offset := types.fallible_payload_offset(channel_type, &emitter.module.types, emitter.module.target)
fmt.sbprintf(&emitter.builder, " %%fallible_error_source%d = getelementptr i8, ptr %%v%d, i64 %d\n", instruction_index, instruction.a, source_offset)
fmt.sbprintf(&emitter.builder, " %%v%d = load %s, ptr %%fallible_error_source%d\n", instruction_index, llvm_type(error_type, &emitter.module.types), instruction_index)
continue
}
emit_recovery_value(emitter, instruction_index, instruction, "unsupported fallible error type")
case .Store:
if !valid_address(instructions, instruction.a, instruction.type, &emitter.module.types) ||