| //@ compile-flags: -C no-prepopulate-passes |
| |
| #![crate_type = "lib"] |
| #![feature(core_intrinsics)] |
| |
| use std::intrinsics::rotate_left; |
| |
| // CHECK-LABEL: @rotate_left_u16 |
| #[no_mangle] |
| pub unsafe fn rotate_left_u16(x: u16, shift: u32) -> u16 { |
| // CHECK: %[[tmp:.*]] = trunc i32 %shift to i16 |
| // CHECK: call i16 @llvm.fshl.i16(i16 %x, i16 %x, i16 %[[tmp]]) |
| rotate_left(x, shift) |
| } |
| |
| // CHECK-LABEL: @rotate_left_u32 |
| #[no_mangle] |
| pub unsafe fn rotate_left_u32(x: u32, shift: u32) -> u32 { |
| // CHECK-NOT: trunc |
| // CHECK-NOT: zext |
| // CHECK: call i32 @llvm.fshl.i32(i32 %x, i32 %x, i32 %shift) |
| rotate_left(x, shift) |
| } |
| |
| // CHECK-LABEL: @rotate_left_u64 |
| #[no_mangle] |
| pub unsafe fn rotate_left_u64(x: u64, shift: u32) -> u64 { |
| // CHECK: %[[tmp:.*]] = zext i32 %shift to i64 |
| // CHECK: call i64 @llvm.fshl.i64(i64 %x, i64 %x, i64 %[[tmp]]) |
| rotate_left(x, shift) |
| } |
