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| author | Tomasz Miąsko <tomasz.miasko@gmail.com> | 2020-11-09 00:00:00 +0000 |
|---|---|---|
| committer | Tomasz Miąsko <tomasz.miasko@gmail.com> | 2020-11-09 00:00:00 +0000 |
| commit | dc4d74d149198c60ca1cf3a8513a7f3d031503eb (patch) | |
| tree | 8e61021f489f0d1b3adb53996db86f304dda688d /src/test/mir-opt/inline/inline_cycle.two.Inline.diff | |
| parent | b7f16c56d10abbd664407b4eef41b5e69d18666d (diff) | |
inliner: Break inlining cycles
When examining candidates for inlining, reject those that are determined to be recursive either because of self-recursive calls or calls to any instances already inlined.
Diffstat (limited to 'src/test/mir-opt/inline/inline_cycle.two.Inline.diff')
| -rw-r--r-- | src/test/mir-opt/inline/inline_cycle.two.Inline.diff | 47 |
1 files changed, 47 insertions, 0 deletions
diff --git a/src/test/mir-opt/inline/inline_cycle.two.Inline.diff b/src/test/mir-opt/inline/inline_cycle.two.Inline.diff new file mode 100644 index 00000000000..b44baca9bf4 --- /dev/null +++ b/src/test/mir-opt/inline/inline_cycle.two.Inline.diff @@ -0,0 +1,47 @@ +- // MIR for `two` before Inline ++ // MIR for `two` after Inline + + fn two() -> () { + let mut _0: (); // return place in scope 0 at $DIR/inline-cycle.rs:48:10: 48:10 + let _1: (); // in scope 0 at $DIR/inline-cycle.rs:49:5: 49:12 ++ let mut _2: fn() {f}; // in scope 0 at $DIR/inline-cycle.rs:49:5: 49:12 ++ let mut _5: (); // in scope 0 at $DIR/inline-cycle.rs:49:5: 49:12 ++ scope 1 (inlined call::<fn() {f}>) { // at $DIR/inline-cycle.rs:49:5: 49:12 ++ debug f => _2; // in scope 1 at $DIR/inline-cycle.rs:49:5: 49:12 ++ let _3: (); // in scope 1 at $DIR/inline-cycle.rs:49:5: 49:12 ++ let mut _4: fn() {f}; // in scope 1 at $DIR/inline-cycle.rs:49:5: 49:12 ++ scope 2 (inlined <fn() {f} as FnOnce<()>>::call_once - shim(fn() {f})) { // at $DIR/inline-cycle.rs:49:5: 49:12 ++ } ++ } + + bb0: { + StorageLive(_1); // scope 0 at $DIR/inline-cycle.rs:49:5: 49:12 +- _1 = call::<fn() {f}>(f) -> bb1; // scope 0 at $DIR/inline-cycle.rs:49:5: 49:12 ++ StorageLive(_2); // scope 0 at $DIR/inline-cycle.rs:49:5: 49:12 ++ _2 = f; // scope 0 at $DIR/inline-cycle.rs:49:5: 49:12 + // mir::Constant +- // + span: $DIR/inline-cycle.rs:49:5: 49:9 +- // + literal: Const { ty: fn(fn() {f}) {call::<fn() {f}>}, val: Value(Scalar(<ZST>)) } +- // mir::Constant + // + span: $DIR/inline-cycle.rs:49:10: 49:11 + // + literal: Const { ty: fn() {f}, val: Value(Scalar(<ZST>)) } ++ StorageLive(_3); // scope 1 at $DIR/inline-cycle.rs:49:5: 49:12 ++ StorageLive(_4); // scope 1 at $DIR/inline-cycle.rs:49:5: 49:12 ++ _4 = move _2; // scope 1 at $DIR/inline-cycle.rs:49:5: 49:12 ++ StorageLive(_5); // scope 1 at $DIR/inline-cycle.rs:49:5: 49:12 ++ _5 = const (); // scope 1 at $DIR/inline-cycle.rs:49:5: 49:12 ++ _3 = move _4() -> bb1; // scope 2 at $DIR/inline-cycle.rs:49:5: 49:12 + } + + bb1: { ++ StorageDead(_5); // scope 1 at $DIR/inline-cycle.rs:49:5: 49:12 ++ StorageDead(_4); // scope 1 at $DIR/inline-cycle.rs:49:5: 49:12 ++ StorageDead(_3); // scope 1 at $DIR/inline-cycle.rs:49:5: 49:12 ++ _1 = const (); // scope 1 at $DIR/inline-cycle.rs:49:5: 49:12 ++ StorageDead(_2); // scope 0 at $DIR/inline-cycle.rs:49:5: 49:12 + StorageDead(_1); // scope 0 at $DIR/inline-cycle.rs:49:12: 49:13 + _0 = const (); // scope 0 at $DIR/inline-cycle.rs:48:10: 50:2 + return; // scope 0 at $DIR/inline-cycle.rs:50:2: 50:2 + } + } + |