diff options
Diffstat (limited to 'tests/codegen-llvm/intrinsics/cold_path2.rs')
| -rw-r--r-- | tests/codegen-llvm/intrinsics/cold_path2.rs | 37 |
1 files changed, 37 insertions, 0 deletions
diff --git a/tests/codegen-llvm/intrinsics/cold_path2.rs b/tests/codegen-llvm/intrinsics/cold_path2.rs new file mode 100644 index 00000000000..0891c878fd9 --- /dev/null +++ b/tests/codegen-llvm/intrinsics/cold_path2.rs @@ -0,0 +1,37 @@ +//@ compile-flags: -O +#![crate_type = "lib"] +#![feature(core_intrinsics)] + +use std::intrinsics::cold_path; + +#[inline(never)] +#[no_mangle] +pub fn path_a() { + println!("path a"); +} + +#[inline(never)] +#[no_mangle] +pub fn path_b() { + println!("path b"); +} + +#[no_mangle] +pub fn test(x: Option<bool>) { + if let Some(_) = x { + path_a(); + } else { + cold_path(); + path_b(); + } + + // CHECK-LABEL: void @test(i8{{.+}}%x) + // CHECK: %[[IS_NONE:.+]] = icmp eq i8 %x, 2 + // CHECK: br i1 %[[IS_NONE]], label %bb2, label %bb1, !prof ![[NUM:[0-9]+]] + // CHECK: bb1: + // CHECK: path_a + // CHECK: bb2: + // CHECK: path_b +} + +// CHECK: ![[NUM]] = !{!"branch_weights", {{(!"expected", )?}}i32 1, i32 2000} |
