Simple preopt: Fold (imm OP x) into (OP_IMM x imm) whenever possible;

2019-07-31 12:43:01 +02:00
parent 23ac723d4c
commit 057d4f6e3c
1 changed files with 5 additions and 0 deletions
--- a/cranelift/codegen/src/simple_preopt.rs
+++ b/cranelift/codegen/src/simple_preopt.rs
@@ -556,6 +556,11 @@ fn simplify(pos: &mut FuncCursor, inst: Inst) {
                simplify(pos, inst);
            } else if let Some(imm) = resolve_imm64_value(&pos.func.dfg, args[0]) {
                let new_opcode = match opcode {
+                    Opcode::Iadd => Opcode::IaddImm,
+                    Opcode::Imul => Opcode::ImulImm,
+                    Opcode::Band => Opcode::BandImm,
+                    Opcode::Bor => Opcode::BorImm,
+                    Opcode::Bxor => Opcode::BxorImm,
                    Opcode::Isub => Opcode::IrsubImm,
                    _ => return,
                };