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64 lines
2.6 KiB
Rust
64 lines
2.6 KiB
Rust
// compile-flags: -C no-prepopulate-passes
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#![crate_type = "lib"]
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#![feature(core_intrinsics)]
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use std::intrinsics::{prefetch_read_data, prefetch_write_data,
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prefetch_read_instruction, prefetch_write_instruction};
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#[no_mangle]
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pub fn check_prefetch_read_data(data: &[i8]) {
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unsafe {
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// CHECK: call void @llvm.prefetch{{.*}}({{.*}}, i32 0, i32 0, i32 1)
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prefetch_read_data(data.as_ptr(), 0);
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// CHECK: call void @llvm.prefetch{{.*}}({{.*}}, i32 0, i32 1, i32 1)
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prefetch_read_data(data.as_ptr(), 1);
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// CHECK: call void @llvm.prefetch{{.*}}({{.*}}, i32 0, i32 2, i32 1)
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prefetch_read_data(data.as_ptr(), 2);
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// CHECK: call void @llvm.prefetch{{.*}}({{.*}}, i32 0, i32 3, i32 1)
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prefetch_read_data(data.as_ptr(), 3);
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}
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}
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#[no_mangle]
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pub fn check_prefetch_write_data(data: &[i8]) {
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unsafe {
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// CHECK: call void @llvm.prefetch{{.*}}({{.*}}, i32 1, i32 0, i32 1)
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prefetch_write_data(data.as_ptr(), 0);
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// CHECK: call void @llvm.prefetch{{.*}}({{.*}}, i32 1, i32 1, i32 1)
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prefetch_write_data(data.as_ptr(), 1);
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// CHECK: call void @llvm.prefetch{{.*}}({{.*}}, i32 1, i32 2, i32 1)
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prefetch_write_data(data.as_ptr(), 2);
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// CHECK: call void @llvm.prefetch{{.*}}({{.*}}, i32 1, i32 3, i32 1)
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prefetch_write_data(data.as_ptr(), 3);
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}
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}
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#[no_mangle]
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pub fn check_prefetch_read_instruction(data: &[i8]) {
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unsafe {
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// CHECK: call void @llvm.prefetch{{.*}}({{.*}}, i32 0, i32 0, i32 0)
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prefetch_read_instruction(data.as_ptr(), 0);
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// CHECK: call void @llvm.prefetch{{.*}}({{.*}}, i32 0, i32 1, i32 0)
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prefetch_read_instruction(data.as_ptr(), 1);
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// CHECK: call void @llvm.prefetch{{.*}}({{.*}}, i32 0, i32 2, i32 0)
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prefetch_read_instruction(data.as_ptr(), 2);
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// CHECK: call void @llvm.prefetch{{.*}}({{.*}}, i32 0, i32 3, i32 0)
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prefetch_read_instruction(data.as_ptr(), 3);
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}
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}
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#[no_mangle]
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pub fn check_prefetch_write_instruction(data: &[i8]) {
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unsafe {
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// CHECK: call void @llvm.prefetch{{.*}}({{.*}}, i32 1, i32 0, i32 0)
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prefetch_write_instruction(data.as_ptr(), 0);
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// CHECK: call void @llvm.prefetch{{.*}}({{.*}}, i32 1, i32 1, i32 0)
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prefetch_write_instruction(data.as_ptr(), 1);
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// CHECK: call void @llvm.prefetch{{.*}}({{.*}}, i32 1, i32 2, i32 0)
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prefetch_write_instruction(data.as_ptr(), 2);
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// CHECK: call void @llvm.prefetch{{.*}}({{.*}}, i32 1, i32 3, i32 0)
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prefetch_write_instruction(data.as_ptr(), 3);
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}
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}
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