From a4b7ed7a42c716ab9f05e351f003d589124fd55d Mon Sep 17 00:00:00 2001 From: Daniel Baumann Date: Wed, 17 Apr 2024 14:18:58 +0200 Subject: Adding upstream version 1.68.2+dfsg1. Signed-off-by: Daniel Baumann --- tests/codegen/intrinsics/likely.rs | 30 ++++++++++++++++++++++++++++++ 1 file changed, 30 insertions(+) create mode 100644 tests/codegen/intrinsics/likely.rs (limited to 'tests/codegen/intrinsics/likely.rs') diff --git a/tests/codegen/intrinsics/likely.rs b/tests/codegen/intrinsics/likely.rs new file mode 100644 index 000000000..c5a0185bd --- /dev/null +++ b/tests/codegen/intrinsics/likely.rs @@ -0,0 +1,30 @@ +// compile-flags: -C no-prepopulate-passes + +#![crate_type = "lib"] +#![feature(core_intrinsics)] + +use std::intrinsics::{likely,unlikely}; + +#[no_mangle] +pub fn check_likely(x: i32, y: i32) -> Option { + unsafe { + // CHECK: call i1 @llvm.expect.i1(i1 %{{.*}}, i1 true) + if likely(x == y) { + None + } else { + Some(x + y) + } + } +} + +#[no_mangle] +pub fn check_unlikely(x: i32, y: i32) -> Option { + unsafe { + // CHECK: call i1 @llvm.expect.i1(i1 %{{.*}}, i1 false) + if unlikely(x == y) { + None + } else { + Some(x + y) + } + } +} -- cgit v1.2.3