Fix rebase

Author: bjorn3

cranelift-codegen/meta/src/shared/legalize.rs

@@ -185,6 +185,9 @@ pub(crate) fn define(insts: &InstructionGroup, imm: &Immediates) -> TransformGro
     let offset = var("off");
     let vararg = var("vararg");
 
+    narrow.custom_legalize(load, "narrow_load");
+    narrow.custom_legalize(store, "narrow_store");
+
     narrow.legalize(
         def!(a = iadd(x, y)),
         vec![
@@ -273,30 +276,6 @@ pub(crate) fn define(insts: &InstructionGroup, imm: &Immediates) -> TransformGro
         ],
     );
 
-    // FIXME generalize to any offset once offset+8 can be represented
-    narrow.legalize(
-        def!(a = load.I128(flags, ptr, Literal::constant(&imm.offset32, 0))),
-        vec![
-            def!(al = load.I64(flags, ptr, Literal::constant(&imm.offset32, 0))),
-            def!(ah = load.I64(flags, ptr, Literal::constant(&imm.offset32, 8))),
-            // `iconcat` expects the same byte order as stored in memory,
-            // so no need to swap depending on endianness.
-            def!(a = iconcat(al, ah)),
-        ],
-    );
-
-    // FIXME generalize to any offset once offset+8 can be represented
-    narrow.legalize(
-        def!(store.I128(flags, a, ptr, Literal::constant(&imm.offset32, 0))),
-        vec![
-            // `isplit` gives the same byte order as stored in memory,
-            // so no need to swap depending on endianness.
-            def!((al, ah) = isplit(a)),
-            def!(store.I64(flags, al, ptr, Literal::constant(&imm.offset32, 0))),
-            def!(store.I64(flags, ah, ptr, Literal::constant(&imm.offset32, 8))),
-        ],
-    );
-
     // Widen instructions with one input operand.
     for &op in &[bnot, popcnt] {
         for &int_ty in &[I8, I16] {