From 698f8c2f01ea549d77d7dc3338a12e04c11057b9 Mon Sep 17 00:00:00 2001 From: Daniel Baumann Date: Wed, 17 Apr 2024 14:02:58 +0200 Subject: Adding upstream version 1.64.0+dfsg1. Signed-off-by: Daniel Baumann --- src/test/ui/lto/thin-lto-inlines.rs | 30 ++++++++++++++++++++++++++++++ 1 file changed, 30 insertions(+) create mode 100644 src/test/ui/lto/thin-lto-inlines.rs (limited to 'src/test/ui/lto/thin-lto-inlines.rs') diff --git a/src/test/ui/lto/thin-lto-inlines.rs b/src/test/ui/lto/thin-lto-inlines.rs new file mode 100644 index 000000000..dca791807 --- /dev/null +++ b/src/test/ui/lto/thin-lto-inlines.rs @@ -0,0 +1,30 @@ +// run-pass + +// compile-flags: -Z thinlto -C codegen-units=8 -O +// ignore-emscripten can't inspect instructions on emscripten + +// We want to assert here that ThinLTO will inline across codegen units. There's +// not really a great way to do that in general so we sort of hack around it by +// praying two functions go into separate codegen units and then assuming that +// if inlining *doesn't* happen the first byte of the functions will differ. + +pub fn foo() -> u32 { + bar::bar() +} + +mod bar { + pub fn bar() -> u32 { + 3 + } +} + +fn main() { + println!("{} {}", foo(), bar::bar()); + + unsafe { + let foo = foo as usize as *const u8; + let bar = bar::bar as usize as *const u8; + + assert_eq!(*foo, *bar); + } +} -- cgit v1.2.3