diff options
author | Daniel Baumann <daniel.baumann@progress-linux.org> | 2024-04-17 12:18:58 +0000 |
---|---|---|
committer | Daniel Baumann <daniel.baumann@progress-linux.org> | 2024-04-17 12:18:58 +0000 |
commit | a4b7ed7a42c716ab9f05e351f003d589124fd55d (patch) | |
tree | b620cd3f223850b28716e474e80c58059dca5dd4 /tests/codegen/issue-75659.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/issue-75659.rs')
-rw-r--r-- | tests/codegen/issue-75659.rs | 63 |
1 files changed, 63 insertions, 0 deletions
diff --git a/tests/codegen/issue-75659.rs b/tests/codegen/issue-75659.rs new file mode 100644 index 000000000..6bcb59aff --- /dev/null +++ b/tests/codegen/issue-75659.rs @@ -0,0 +1,63 @@ +// This test checks that the call to memchr/slice_contains is optimized away +// when searching in small slices. + +// compile-flags: -O -Zinline-mir=no +// only-x86_64 + +#![crate_type = "lib"] + +// CHECK-LABEL: @foo1 +#[no_mangle] +pub fn foo1(x: u8, data: &[u8; 1]) -> bool { + // CHECK-NOT: memchr + // CHECK-NOT: slice_contains + data.contains(&x) +} + +// CHECK-LABEL: @foo2 +#[no_mangle] +pub fn foo2(x: u8, data: &[u8; 2]) -> bool { + // CHECK-NOT: memchr + // CHECK-NOT: slice_contains + data.contains(&x) +} + +// CHECK-LABEL: @foo3 +#[no_mangle] +pub fn foo3(x: u8, data: &[u8; 3]) -> bool { + // CHECK-NOT: memchr + // CHECK-NOT: slice_contains + data.contains(&x) +} + +// CHECK-LABEL: @foo4 +#[no_mangle] +pub fn foo4(x: u8, data: &[u8; 4]) -> bool { + // CHECK-NOT: memchr + // CHECK-NOT: slice_contains + data.contains(&x) +} + +// CHECK-LABEL: @foo8 +#[no_mangle] +pub fn foo8(x: u8, data: &[u8; 8]) -> bool { + // CHECK-NOT: memchr + // CHECK-NOT: slice_contains + data.contains(&x) +} + +// CHECK-LABEL: @foo8_i8 +#[no_mangle] +pub fn foo8_i8(x: i8, data: &[i8; 8]) -> bool { + // CHECK-NOT: memchr + // CHECK-NOT: slice_contains + !data.contains(&x) +} + +// Check that the general case isn't inlined +// CHECK-LABEL: @foo80 +#[no_mangle] +pub fn foo80(x: u8, data: &[u8; 80]) -> bool { + // CHECK: call core::slice::memchr + data.contains(&x) +} |