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| author | Daniel Baumann <daniel.baumann@progress-linux.org> | 2024-04-17 12:06:31 +0000 |
|---|---|---|
| committer | Daniel Baumann <daniel.baumann@progress-linux.org> | 2024-04-17 12:06:31 +0000 |
| commit | 2ff14448863ac1a1dd9533461708e29aae170c2d (patch) | |
| tree | 85b9fea2bbfe3f06473cfa381eed11f273b57c5c /src/test/codegen/layout-size-checks.rs | |
| parent | Adding debian version 1.64.0+dfsg1-1. (diff) | |
| download | rustc-2ff14448863ac1a1dd9533461708e29aae170c2d.tar.xz rustc-2ff14448863ac1a1dd9533461708e29aae170c2d.zip | |
Adding debian version 1.65.0+dfsg1-2.debian/1.65.0+dfsg1-2
Signed-off-by: Daniel Baumann <daniel.baumann@progress-linux.org>
Diffstat (limited to 'src/test/codegen/layout-size-checks.rs')
| -rw-r--r-- | src/test/codegen/layout-size-checks.rs | 31 |
1 files changed, 31 insertions, 0 deletions
diff --git a/src/test/codegen/layout-size-checks.rs b/src/test/codegen/layout-size-checks.rs new file mode 100644 index 000000000..d067cc10a --- /dev/null +++ b/src/test/codegen/layout-size-checks.rs @@ -0,0 +1,31 @@ +// compile-flags: -O +// only-x86_64 +// ignore-debug: the debug assertions get in the way + +#![crate_type = "lib"] + +use std::alloc::Layout; + +type RGB48 = [u16; 3]; + +// CHECK-LABEL: @layout_array_rgb48 +#[no_mangle] +pub fn layout_array_rgb48(n: usize) -> Layout { + // CHECK-NOT: llvm.umul.with.overflow.i64 + // CHECK: icmp ugt i64 %n, 1537228672809129301 + // CHECK-NOT: llvm.umul.with.overflow.i64 + // CHECK: mul nuw nsw i64 %n, 6 + // CHECK-NOT: llvm.umul.with.overflow.i64 + Layout::array::<RGB48>(n).unwrap() +} + +// CHECK-LABEL: @layout_array_i32 +#[no_mangle] +pub fn layout_array_i32(n: usize) -> Layout { + // CHECK-NOT: llvm.umul.with.overflow.i64 + // CHECK: icmp ugt i64 %n, 2305843009213693951 + // CHECK-NOT: llvm.umul.with.overflow.i64 + // CHECK: shl nuw nsw i64 %n, 2 + // CHECK-NOT: llvm.umul.with.overflow.i64 + Layout::array::<i32>(n).unwrap() +} |