Pre-opt: Use the correct operand in the irsub_imm pattern.

2018-03-30 21:00:37 -07:00
parent 95c09bbfde
commit e107793b68
2 changed files with 2 additions and 2 deletions
--- a/cranelift/filetests/preopt/simplify.cton
+++ b/cranelift/filetests/preopt/simplify.cton
@@ -75,6 +75,6 @@ ebb0(v0: i32):
 ; sameln: function %irsub_imm
 ; nextln: ebb0(v0: i32):
 ; nextln:     v1 = iconst.i32 2
-; nextln:     v2 = irsub_imm v1, 2
+; nextln:     v2 = irsub_imm v0, 2
 ; nextln:     return v2
 ; nextln: }
--- a/lib/cretonne/src/preopt.rs
+++ b/lib/cretonne/src/preopt.rs
@@ -505,7 +505,7 @@ fn simplify(pos: &mut FuncCursor, inst: Inst) {
                        new_opcode,
                        ty,
                        imm,
-                        args[0],
+                        args[1],
                    );
                }
            }