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author | Daniel Baumann <daniel.baumann@progress-linux.org> | 2024-04-17 12:18:58 +0000 |
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committer | Daniel Baumann <daniel.baumann@progress-linux.org> | 2024-04-17 12:18:58 +0000 |
commit | a4b7ed7a42c716ab9f05e351f003d589124fd55d (patch) | |
tree | b620cd3f223850b28716e474e80c58059dca5dd4 /tests/codegen/unchecked-float-casts.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/unchecked-float-casts.rs')
-rw-r--r-- | tests/codegen/unchecked-float-casts.rs | 36 |
1 files changed, 36 insertions, 0 deletions
diff --git a/tests/codegen/unchecked-float-casts.rs b/tests/codegen/unchecked-float-casts.rs new file mode 100644 index 000000000..4e3bfcd43 --- /dev/null +++ b/tests/codegen/unchecked-float-casts.rs @@ -0,0 +1,36 @@ +// This file tests that we don't generate any code for saturation when using the +// unchecked intrinsics. + +// compile-flags: -C opt-level=3 +// ignore-wasm32 the wasm target is tested in `wasm_casts_*` + +#![crate_type = "lib"] + +// CHECK-LABEL: @f32_to_u32 +#[no_mangle] +pub fn f32_to_u32(x: f32) -> u32 { + // CHECK: fptoui + // CHECK-NOT: fcmp + // CHECK-NOT: icmp + // CHECK-NOT: select + unsafe { x.to_int_unchecked() } +} + +// CHECK-LABEL: @f32_to_i32 +#[no_mangle] +pub fn f32_to_i32(x: f32) -> i32 { + // CHECK: fptosi + // CHECK-NOT: fcmp + // CHECK-NOT: icmp + // CHECK-NOT: select + unsafe { x.to_int_unchecked() } +} + +#[no_mangle] +pub fn f64_to_u16(x: f64) -> u16 { + // CHECK: fptoui + // CHECK-NOT: fcmp + // CHECK-NOT: icmp + // CHECK-NOT: select + unsafe { x.to_int_unchecked() } +} |