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authorbors <bors@rust-lang.org>2023-05-28 21:53:56 +0000
committerbors <bors@rust-lang.org>2023-05-28 21:53:56 +0000
commit089677eb32af83318467325edbef9b64053df532 (patch)
treed1863fbc8e15a88e528495262199fab40bdc17c4 /src/tools/compiletest
parent1c53407e8c7cc922d718bde61ca34f47b6d2120f (diff)
parentd69725d5d5173e6c6fc20873f306cbd66fa963e7 (diff)
downloadrust-089677eb32af83318467325edbef9b64053df532.tar.gz
rust-089677eb32af83318467325edbef9b64053df532.zip
Auto merge of #111813 - scottmcm:pretty-mir, r=cjgillot
MIR: opt-in normalization of `BasicBlock` and `Local` numbering

This doesn't matter at all for actual codegen, but after spending some time reading pre-codegen MIR, I was wishing I didn't have to jump around so much in reading post-inlining code.

So this add two passes that are off by default for every mir level, but can be enabled (`-Zmir-enable-passes=+ReorderBasicBlocks,+ReorderLocals`) for humans.
Diffstat (limited to 'src/tools/compiletest')
-rw-r--r--src/tools/compiletest/src/runtest.rs5
1 files changed, 4 insertions, 1 deletions
diff --git a/src/tools/compiletest/src/runtest.rs b/src/tools/compiletest/src/runtest.rs
index 5bc4d164265..a799d93ce25 100644
--- a/src/tools/compiletest/src/runtest.rs
+++ b/src/tools/compiletest/src/runtest.rs
@@ -2045,7 +2045,10 @@ impl<'test> TestCx<'test> {
                 if let Some(pass) = &self.props.mir_unit_test {
                     rustc.args(&["-Zmir-opt-level=0", &format!("-Zmir-enable-passes=+{}", pass)]);
                 } else {
-                    rustc.arg("-Zmir-opt-level=4");
+                    rustc.args(&[
+                        "-Zmir-opt-level=4",
+                        "-Zmir-enable-passes=+ReorderBasicBlocks,+ReorderLocals",
+                    ]);
                 }
 
                 let mir_dump_dir = self.get_mir_dump_dir();