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| author | Wesley Wiser <wwiser@gmail.com> | 2019-10-28 05:59:59 -0400 |
|---|---|---|
| committer | Wesley Wiser <wwiser@gmail.com> | 2019-11-11 20:57:26 -0500 |
| commit | db5fc10c21f7ee8ef7649628ae37e6481b8ca14c (patch) | |
| tree | 42229563ddaf7be2c0e814e5a40bf6771701a6a0 /src/test/codegen | |
| parent | bc0e288ad02ef362b5a6c42aaf61f2901c9b46db (diff) | |
| download | rust-db5fc10c21f7ee8ef7649628ae37e6481b8ca14c.tar.gz rust-db5fc10c21f7ee8ef7649628ae37e6481b8ca14c.zip | |
[mir-opt] Turn on the `ConstProp` pass by default
perf.rlo shows that running the `ConstProp` pass results in across-the-board wins regardless of debug or opt complilation mode. As a result, we're turning it on to get the compile time benefits. `ConstProp` doesn't currently intern the memory used by its `Machine` so we can't yet propagate allocations which is why `ConstProp::should_const_prop()` checks if the value being propagated is a scalar or not.
Diffstat (limited to 'src/test/codegen')
| -rw-r--r-- | src/test/codegen/optimize-attr-1.rs | 6 |
1 files changed, 3 insertions, 3 deletions
diff --git a/src/test/codegen/optimize-attr-1.rs b/src/test/codegen/optimize-attr-1.rs index 4a5b7c05231..a8be10ba3ce 100644 --- a/src/test/codegen/optimize-attr-1.rs +++ b/src/test/codegen/optimize-attr-1.rs @@ -8,7 +8,7 @@ // CHECK-LABEL: define i32 @nothing // CHECK-SAME: [[NOTHING_ATTRS:#[0-9]+]] -// NO-OPT: ret i32 %_1.0 +// NO-OPT: ret i32 4 // SIZE-OPT: ret i32 4 // SPEEC-OPT: ret i32 4 #[no_mangle] @@ -18,7 +18,7 @@ pub fn nothing() -> i32 { // CHECK-LABEL: define i32 @size // CHECK-SAME: [[SIZE_ATTRS:#[0-9]+]] -// NO-OPT: ret i32 %_1.0 +// NO-OPT: ret i32 6 // SIZE-OPT: ret i32 6 // SPEED-OPT: ret i32 6 #[optimize(size)] @@ -31,7 +31,7 @@ pub fn size() -> i32 { // NO-OPT-SAME: [[NOTHING_ATTRS]] // SPEED-OPT-SAME: [[NOTHING_ATTRS]] // SIZE-OPT-SAME: [[SPEED_ATTRS:#[0-9]+]] -// NO-OPT: ret i32 %_1.0 +// NO-OPT: ret i32 8 // SIZE-OPT: ret i32 8 // SPEED-OPT: ret i32 8 #[optimize(speed)] |