59524410a7
... rather than being gated by -Z saturating-float-casts. There are several reasons for this: 1. Const eval already implements this behavior. 2. Unlike with float->int casts, this behavior is uncontroversially the right behavior and it is not as performance critical. Thus there is no particular need to make the bug fix for u128->f32 casts opt-in. 3. Having two orthogonal features under one flag is silly, and never should have happened in the first place. 4. Benchmarking float->int casts with the -Z flag should not pick up performance changes due to the u128->f32 casts (assuming there are any). Fixes #41799
46 lines
1.2 KiB
Rust
46 lines
1.2 KiB
Rust
// Copyright 2017 The Rust Project Developers. See the COPYRIGHT
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// file at the top-level directory of this distribution and at
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// http://rust-lang.org/COPYRIGHT.
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//
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// Licensed under the Apache License, Version 2.0 <LICENSE-APACHE or
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// http://www.apache.org/licenses/LICENSE-2.0> or the MIT license
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// <LICENSE-MIT or http://opensource.org/licenses/MIT>, at your
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// option. This file may not be copied, modified, or distributed
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// except according to those terms.
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// compile-flags: -C no-prepopulate-passes
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// This file tests that we don't generate any code for saturation if
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// -Z saturating-float-casts is not enabled.
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#![crate_type = "lib"]
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#![feature(i128_type)]
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// CHECK-LABEL: @f32_to_u32
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#[no_mangle]
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pub fn f32_to_u32(x: f32) -> u32 {
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// CHECK: fptoui
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// CHECK-NOT: fcmp
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// CHECK-NOT: icmp
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// CHECK-NOT: select
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x as u32
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}
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// CHECK-LABEL: @f32_to_i32
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#[no_mangle]
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pub fn f32_to_i32(x: f32) -> i32 {
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// CHECK: fptosi
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// CHECK-NOT: fcmp
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// CHECK-NOT: icmp
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// CHECK-NOT: select
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x as i32
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}
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#[no_mangle]
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pub fn f64_to_u16(x: f64) -> u16 {
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// CHECK: fptoui
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// CHECK-NOT: fcmp
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// CHECK-NOT: icmp
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// CHECK-NOT: select
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x as u16
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}
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