mirror of https://github.com/rust-lang/rust
48 lines
1.3 KiB
Rust
48 lines
1.3 KiB
Rust
//@ revisions: NO-OPT SIZE-OPT SPEED-OPT
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//@[NO-OPT] compile-flags: -Copt-level=0 -Ccodegen-units=1
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//@[SIZE-OPT] compile-flags: -Copt-level=s -Ccodegen-units=1
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//@[SPEED-OPT] compile-flags: -Copt-level=3 -Ccodegen-units=1
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#![feature(optimize_attribute)]
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#![crate_type="rlib"]
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// CHECK-LABEL: define{{.*}}i32 @nothing
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// CHECK-SAME: [[NOTHING_ATTRS:#[0-9]+]]
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// SIZE-OPT: ret i32 4
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// SPEED-OPT: ret i32 4
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#[no_mangle]
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pub fn nothing() -> i32 {
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2 + 2
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}
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// CHECK-LABEL: define{{.*}}i32 @size
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// CHECK-SAME: [[SIZE_ATTRS:#[0-9]+]]
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// SIZE-OPT: ret i32 6
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// SPEED-OPT: ret i32 6
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#[optimize(size)]
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#[no_mangle]
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pub fn size() -> i32 {
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3 + 3
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}
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// CHECK-LABEL: define{{.*}}i32 @speed
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// NO-OPT-SAME: [[NOTHING_ATTRS]]
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// SPEED-OPT-SAME: [[NOTHING_ATTRS]]
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// SIZE-OPT-SAME: [[SPEED_ATTRS:#[0-9]+]]
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// SIZE-OPT: ret i32 8
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// SPEED-OPT: ret i32 8
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#[optimize(speed)]
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#[no_mangle]
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pub fn speed() -> i32 {
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4 + 4
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}
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// NO-OPT-DAG: attributes [[SIZE_ATTRS]] = {{.*}}minsize{{.*}}optsize{{.*}}
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// SPEED-OPT-DAG: attributes [[SIZE_ATTRS]] = {{.*}}minsize{{.*}}optsize{{.*}}
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// SIZE-OPT-DAG: attributes [[NOTHING_ATTRS]] = {{.*}}optsize{{.*}}
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// SIZE-OPT-DAG: attributes [[SIZE_ATTRS]] = {{.*}}minsize{{.*}}optsize{{.*}}
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// SIZE-OPT: attributes [[SPEED_ATTRS]]
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// SIZE-OPT-NOT: minsize
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// SIZE-OPT-NOT: optsize
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