diff options
Diffstat (limited to 'src/test/codegen/integer-cmp.rs')
-rw-r--r-- | src/test/codegen/integer-cmp.rs | 28 |
1 files changed, 28 insertions, 0 deletions
diff --git a/src/test/codegen/integer-cmp.rs b/src/test/codegen/integer-cmp.rs new file mode 100644 index 000000000..8ada3cf09 --- /dev/null +++ b/src/test/codegen/integer-cmp.rs @@ -0,0 +1,28 @@ +// This is test for more optimal Ord implementation for integers. +// See <https://github.com/rust-lang/rust/issues/63758> for more info. + +// compile-flags: -C opt-level=3 + +#![crate_type = "lib"] + +use std::cmp::Ordering; + +// CHECK-LABEL: @cmp_signed +#[no_mangle] +pub fn cmp_signed(a: i64, b: i64) -> Ordering { +// CHECK: icmp slt +// CHECK: icmp ne +// CHECK: zext i1 +// CHECK: select i1 + a.cmp(&b) +} + +// CHECK-LABEL: @cmp_unsigned +#[no_mangle] +pub fn cmp_unsigned(a: u32, b: u32) -> Ordering { +// CHECK: icmp ult +// CHECK: icmp ne +// CHECK: zext i1 +// CHECK: select i1 + a.cmp(&b) +} |