cranelift: Remove brz and brnz (#5630)

Remove the brz and brnz instructions, as their behavior is now redundant with brif.
2023-01-30 12:34:56 -08:00
parent 77cf547f41
commit a5698cedf8
247 changed files with 2947 additions and 3754 deletions
--- a/cranelift/codegen/src/inst_predicates.rs
+++ b/cranelift/codegen/src/inst_predicates.rs
@@ -175,7 +175,7 @@ pub(crate) fn visit_block_succs<F: FnMut(Inst, Block, bool)>(
    block: Block,
    mut visit: F,
 ) {
-    for inst in f.layout.block_likely_branches(block) {
+    if let Some(inst) = f.layout.last_inst(block) {
        match f.dfg.insts[inst].analyze_branch() {
            BranchInfo::NotABranch => {}
            BranchInfo::SingleDest(dest) => {