Support mod (modify) operands, for better efficiency with regalloc.rs/Cranelift shim.

2021-05-07 19:48:34 -07:00
parent d2cc4f1ac2
commit a6e3128821
4 changed files with 87 additions and 56 deletions
--- a/src/checker.rs
+++ b/src/checker.rs
@@ -297,10 +297,8 @@ impl CheckerState {
                // the requirements of the OperandPolicy.
                for (op, alloc) in operands.iter().zip(allocs.iter()) {
                    let is_here = match (op.pos(), pos) {
-                        (OperandPos::Before, InstPosition::Before)
-                        | (OperandPos::Both, InstPosition::Before) => true,
-                        (OperandPos::After, InstPosition::After)
-                        | (OperandPos::Both, InstPosition::After) => true,
+                        (OperandPos::Before, InstPosition::Before) => true,
+                        (OperandPos::After, InstPosition::After) => true,
                        _ => false,
                    };
                    if !is_here {