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| author | Guillaume Gomez <guillaume1.gomez@gmail.com> | 2025-07-21 14:34:12 +0200 |
|---|---|---|
| committer | Guillaume Gomez <guillaume1.gomez@gmail.com> | 2025-07-22 14:28:48 +0200 |
| commit | a27f3e3fd1e4d16160f8885b6b06665b5319f56c (patch) | |
| tree | b033935392cbadf6f85d2dbddf433a88e323aeeb /tests/codegen-llvm/unchecked-float-casts.rs | |
| parent | ed93c1783b404d728d4809973a0550eb33cd293f (diff) | |
| download | rust-a27f3e3fd1e4d16160f8885b6b06665b5319f56c.tar.gz rust-a27f3e3fd1e4d16160f8885b6b06665b5319f56c.zip | |
Rename `tests/codegen` into `tests/codegen-llvm`
Diffstat (limited to 'tests/codegen-llvm/unchecked-float-casts.rs')
| -rw-r--r-- | tests/codegen-llvm/unchecked-float-casts.rs | 36 |
1 files changed, 36 insertions, 0 deletions
diff --git a/tests/codegen-llvm/unchecked-float-casts.rs b/tests/codegen-llvm/unchecked-float-casts.rs new file mode 100644 index 00000000000..d1869abc87b --- /dev/null +++ b/tests/codegen-llvm/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() } +} |