| Igor Laevsky | 4f31e52 | 2016-12-29 14:31:07 +0000 | [diff] [blame] | 1 | ; RUN: llc < %s -mtriple=x86_64-unknown-linux-gnu | FileCheck %s |
| 2 | |
| 3 | define i8* @test_memcpy1(i8* %P, i8* %Q) { |
| 4 | ; CHECK: test_memcpy |
| 5 | call void @llvm.memcpy.element.atomic.p0i8.p0i8(i8* align 4 %P, i8* align 4 %Q, i64 1, i32 1) |
| 6 | ret i8* %P |
| 7 | ; CHECK-DAG: movl $1, %edx |
| 8 | ; CHECK-DAG: movl $1, %ecx |
| 9 | ; CHECK: __llvm_memcpy_element_atomic_1 |
| 10 | } |
| 11 | |
| 12 | define i8* @test_memcpy2(i8* %P, i8* %Q) { |
| 13 | ; CHECK: test_memcpy2 |
| 14 | call void @llvm.memcpy.element.atomic.p0i8.p0i8(i8* align 4 %P, i8* align 4 %Q, i64 2, i32 2) |
| 15 | ret i8* %P |
| 16 | ; CHECK-DAG: movl $2, %edx |
| 17 | ; CHECK-DAG: movl $2, %ecx |
| 18 | ; CHECK: __llvm_memcpy_element_atomic_2 |
| 19 | } |
| 20 | |
| 21 | define i8* @test_memcpy4(i8* %P, i8* %Q) { |
| 22 | ; CHECK: test_memcpy4 |
| 23 | call void @llvm.memcpy.element.atomic.p0i8.p0i8(i8* align 4 %P, i8* align 4 %Q, i64 4, i32 4) |
| 24 | ret i8* %P |
| 25 | ; CHECK-DAG: movl $4, %edx |
| 26 | ; CHECK-DAG: movl $4, %ecx |
| 27 | ; CHECK: __llvm_memcpy_element_atomic_4 |
| 28 | } |
| 29 | |
| 30 | define i8* @test_memcpy8(i8* %P, i8* %Q) { |
| 31 | ; CHECK: test_memcpy8 |
| 32 | call void @llvm.memcpy.element.atomic.p0i8.p0i8(i8* align 8 %P, i8* align 8 %Q, i64 8, i32 8) |
| 33 | ret i8* %P |
| 34 | ; CHECK-DAG: movl $8, %edx |
| 35 | ; CHECK-DAG: movl $8, %ecx |
| 36 | ; CHECK: __llvm_memcpy_element_atomic_8 |
| 37 | } |
| 38 | |
| 39 | define i8* @test_memcpy16(i8* %P, i8* %Q) { |
| 40 | ; CHECK: test_memcpy16 |
| 41 | call void @llvm.memcpy.element.atomic.p0i8.p0i8(i8* align 16 %P, i8* align 16 %Q, i64 16, i32 16) |
| 42 | ret i8* %P |
| 43 | ; CHECK-DAG: movl $16, %edx |
| 44 | ; CHECK-DAG: movl $16, %ecx |
| 45 | ; CHECK: __llvm_memcpy_element_atomic_16 |
| 46 | } |
| 47 | |
| 48 | define void @test_memcpy_args(i8** %Storage) { |
| 49 | ; CHECK: test_memcpy_args |
| 50 | %Dst = load i8*, i8** %Storage |
| 51 | %Src.addr = getelementptr i8*, i8** %Storage, i64 1 |
| 52 | %Src = load i8*, i8** %Src.addr |
| 53 | |
| 54 | ; First argument |
| 55 | ; CHECK-DAG: movq (%rdi), [[REG1:%r.+]] |
| 56 | ; CHECK-DAG: movq [[REG1]], %rdi |
| 57 | ; Second argument |
| 58 | ; CHECK-DAG: movq 8(%rdi), %rsi |
| 59 | ; Third argument |
| 60 | ; CHECK-DAG: movl $4, %edx |
| 61 | ; Fourth argument |
| 62 | ; CHECK-DAG: movl $4, %ecx |
| 63 | ; CHECK: __llvm_memcpy_element_atomic_4 |
| 64 | call void @llvm.memcpy.element.atomic.p0i8.p0i8(i8* align 4 %Dst, i8* align 4 %Src, i64 4, i32 4) |
| 65 | ret void |
| 66 | } |
| 67 | |
| 68 | declare void @llvm.memcpy.element.atomic.p0i8.p0i8(i8* nocapture, i8* nocapture, i64, i32) nounwind |