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author | Daniel Baumann <daniel.baumann@progress-linux.org> | 2024-04-17 12:18:58 +0000 |
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committer | Daniel Baumann <daniel.baumann@progress-linux.org> | 2024-04-17 12:18:58 +0000 |
commit | a4b7ed7a42c716ab9f05e351f003d589124fd55d (patch) | |
tree | b620cd3f223850b28716e474e80c58059dca5dd4 /tests/codegen/lifetime_start_end.rs | |
parent | Adding upstream version 1.67.1+dfsg1. (diff) | |
download | rustc-a4b7ed7a42c716ab9f05e351f003d589124fd55d.tar.xz rustc-a4b7ed7a42c716ab9f05e351f003d589124fd55d.zip |
Adding upstream version 1.68.2+dfsg1.upstream/1.68.2+dfsg1
Signed-off-by: Daniel Baumann <daniel.baumann@progress-linux.org>
Diffstat (limited to 'tests/codegen/lifetime_start_end.rs')
-rw-r--r-- | tests/codegen/lifetime_start_end.rs | 34 |
1 files changed, 34 insertions, 0 deletions
diff --git a/tests/codegen/lifetime_start_end.rs b/tests/codegen/lifetime_start_end.rs new file mode 100644 index 000000000..471a0b8ce --- /dev/null +++ b/tests/codegen/lifetime_start_end.rs @@ -0,0 +1,34 @@ +// compile-flags: -O -C no-prepopulate-passes -Zmir-opt-level=0 + +#![crate_type = "lib"] + +// CHECK-LABEL: @test +#[no_mangle] +pub fn test() { + let a = 0u8; + &a; // keep variable in an alloca + +// CHECK: call void @llvm.lifetime.start{{.*}}(i{{[0-9 ]+}}, {{i8\*|ptr}} %a) + + { + let b = &Some(a); + &b; // keep variable in an alloca + +// CHECK: call void @llvm.lifetime.start{{.*}}(i{{[0-9 ]+}}, {{.*}}) + +// CHECK: call void @llvm.lifetime.start{{.*}}(i{{[0-9 ]+}}, {{.*}}) + +// CHECK: call void @llvm.lifetime.end{{.*}}(i{{[0-9 ]+}}, {{.*}}) + +// CHECK: call void @llvm.lifetime.end{{.*}}(i{{[0-9 ]+}}, {{.*}}) + } + + let c = 1u8; + &c; // keep variable in an alloca + +// CHECK: call void @llvm.lifetime.start{{.*}}(i{{[0-9 ]+}}, {{i8\*|ptr}} %c) + +// CHECK: call void @llvm.lifetime.end{{.*}}(i{{[0-9 ]+}}, {{i8\*|ptr}} %c) + +// CHECK: call void @llvm.lifetime.end{{.*}}(i{{[0-9 ]+}}, {{i8\*|ptr}} %a) +} |