Cranelift: implement redundant fill removal on tree-shaped CFG regions. Mozilla bug 1570584. (#906)

2019-08-25 19:37:34 +02:00
parent cc57e84cbd
commit b8fb52446c
19 changed files with 1262 additions and 24 deletions
--- a/cranelift/codegen/meta/src/shared/formats.rs
+++ b/cranelift/codegen/meta/src/shared/formats.rs
@@ -157,6 +157,7 @@ pub fn define(immediates: &OperandKinds, entities: &OperandKinds) -> FormatRegis
            .imm(("src", regunit))
            .imm(("dst", regunit)),
    );
+    registry.insert(Builder::new("CopyToSsa").imm(("src", regunit)));
    registry.insert(
        Builder::new("RegSpill")
            .value()