T0b1/wasmtime
1
0
Fork 0
Code Issues Pull Requests Packages Projects Releases Wiki Activity

Add a fold_redundant_jumps() pass to the branch relaxation phase. (#887)

Browse Source
This commit is contained in:
Sean Stangl
2019-08-09 15:30:11 -06:00
committed by GitHub
parent e6e274a3aa
commit c7b4b98cac
8 changed files with 178 additions and 41 deletions
Download Patch File Download Diff File Expand all files Collapse all files

9
cranelift/filetests/src/test_binemit.rs
View File

@@ -7,6 +7,8 @@ use crate::match_directive::match_directive;
use crate::subtest::{Context, SubTest, SubtestResult};
use cranelift_codegen::binemit::{self, CodeInfo, CodeSink, RegDiversions};
use cranelift_codegen::dbg::DisplayList;
use cranelift_codegen::dominator_tree::DominatorTree;
use cranelift_codegen::flowgraph::ControlFlowGraph;
use cranelift_codegen::ir;
use cranelift_codegen::ir::entities::AnyEntity;
use cranelift_codegen::print_errors::pretty_error;
@@ -166,8 +168,11 @@ impl SubTest for TestBinEmit {
}
// Relax branches and compute EBB offsets based on the encodings.
let CodeInfo { total_size, .. } = binemit::relax_branches(&mut func, isa)
.map_err(|e| pretty_error(&func, context.isa, e))?;
let mut cfg = ControlFlowGraph::with_function(&func);
let mut domtree = DominatorTree::with_function(&func, &cfg);
let CodeInfo { total_size, .. } =
binemit::relax_branches(&mut func, &mut cfg, &mut domtree, isa)
.map_err(|e| pretty_error(&func, context.isa, e))?;
// Collect all of the 'bin:' directives on instructions.
let mut bins = HashMap::new();