mirror of
https://github.com/rust-lang/rust
synced 2024-07-20 18:05:58 +00:00
72800d3b89
Except for `simd-intrinsic/`, which has a lot of files containing multiple types like `u8x64` which really are better when hand-formatted. There is a surprising amount of two-space indenting in this directory. Non-trivial changes: - `rustfmt::skip` needed in `debug-column.rs` to preserve meaning of the test. - `rustfmt::skip` used in a few places where hand-formatting read more nicely: `enum/enum-match.rs` - Line number adjustments needed for the expected output of `debug-column.rs` and `coroutine-debug.rs`.
52 lines
1 KiB
Rust
52 lines
1 KiB
Rust
//@ compile-flags: -Zmir-opt-level=0 -C no-prepopulate-passes -Copt-level=0
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// make sure that branching on a constant does not emit a conditional
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// branch or a switch
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#![crate_type = "lib"]
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// CHECK-LABEL: @if_bool
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#[no_mangle]
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pub fn if_bool() {
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// CHECK: br label %{{.+}}
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_ = if true { 0 } else { 1 };
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// CHECK: br label %{{.+}}
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_ = if false { 0 } else { 1 };
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}
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// CHECK-LABEL: @if_constant_int_eq
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#[no_mangle]
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pub fn if_constant_int_eq() {
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let val = 0;
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// CHECK: br label %{{.+}}
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_ = if val == 0 { 0 } else { 1 };
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// CHECK: br label %{{.+}}
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_ = if val == 1 { 0 } else { 1 };
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}
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// CHECK-LABEL: @if_constant_match
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#[no_mangle]
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pub fn if_constant_match() {
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// CHECK: br label %{{.+}}
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_ = match 1 {
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1 => 2,
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2 => 3,
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_ => 4,
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};
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// CHECK: br label %{{.+}}
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_ = match 1 {
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2 => 3,
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_ => 4,
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};
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// CHECK: br label %[[MINUS1:.+]]
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_ = match -1 {
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// CHECK: [[MINUS1]]:
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// CHECK: store i32 1
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-1 => 1,
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_ => 0,
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}
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}
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