| //@ compile-flags: -C no-prepopulate-passes |
| |
| #![crate_type = "lib"] |
| #![feature(core_intrinsics)] |
| |
| use std::intrinsics::ctpop; |
| |
| // CHECK-LABEL: @ctpop_u16 |
| #[no_mangle] |
| pub unsafe fn ctpop_u16(x: u16) -> u32 { |
| // CHECK: %[[tmp:.*]] = call i16 @llvm.ctpop.i16(i16 %x) |
| // CHECK: zext i16 %[[tmp]] to i32 |
| ctpop(x) |
| } |
| |
| // CHECK-LABEL: @ctpop_u32 |
| #[no_mangle] |
| pub unsafe fn ctpop_u32(x: u32) -> u32 { |
| // CHECK: call i32 @llvm.ctpop.i32(i32 %x) |
| // CHECK-NOT: zext |
| // CHECK-NOT: trunc |
| ctpop(x) |
| } |
| |
| // CHECK-LABEL: @ctpop_u64 |
| #[no_mangle] |
| pub unsafe fn ctpop_u64(x: u64) -> u32 { |
| // CHECK: %[[tmp:.*]] = call i64 @llvm.ctpop.i64(i64 %x) |
| // CHECK: trunc i64 %[[tmp]] to i32 |
| ctpop(x) |
| } |
