forked from OSchip/llvm-project
69 lines
2.1 KiB
LLVM
69 lines
2.1 KiB
LLVM
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; RUN: llc < %s -mtriple=x86_64-unknown-linux-gnu | FileCheck %s
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define i8* @test_memcpy1(i8* %P, i8* %Q) {
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; CHECK: test_memcpy
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call void @llvm.memcpy.element.atomic.p0i8.p0i8(i8* align 4 %P, i8* align 4 %Q, i64 1, i32 1)
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ret i8* %P
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; CHECK-DAG: movl $1, %edx
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; CHECK-DAG: movl $1, %ecx
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; CHECK: __llvm_memcpy_element_atomic_1
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}
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define i8* @test_memcpy2(i8* %P, i8* %Q) {
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; CHECK: test_memcpy2
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call void @llvm.memcpy.element.atomic.p0i8.p0i8(i8* align 4 %P, i8* align 4 %Q, i64 2, i32 2)
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ret i8* %P
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; CHECK-DAG: movl $2, %edx
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; CHECK-DAG: movl $2, %ecx
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; CHECK: __llvm_memcpy_element_atomic_2
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}
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define i8* @test_memcpy4(i8* %P, i8* %Q) {
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; CHECK: test_memcpy4
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call void @llvm.memcpy.element.atomic.p0i8.p0i8(i8* align 4 %P, i8* align 4 %Q, i64 4, i32 4)
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ret i8* %P
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; CHECK-DAG: movl $4, %edx
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; CHECK-DAG: movl $4, %ecx
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; CHECK: __llvm_memcpy_element_atomic_4
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}
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define i8* @test_memcpy8(i8* %P, i8* %Q) {
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; CHECK: test_memcpy8
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call void @llvm.memcpy.element.atomic.p0i8.p0i8(i8* align 8 %P, i8* align 8 %Q, i64 8, i32 8)
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ret i8* %P
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; CHECK-DAG: movl $8, %edx
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; CHECK-DAG: movl $8, %ecx
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; CHECK: __llvm_memcpy_element_atomic_8
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}
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define i8* @test_memcpy16(i8* %P, i8* %Q) {
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; CHECK: test_memcpy16
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call void @llvm.memcpy.element.atomic.p0i8.p0i8(i8* align 16 %P, i8* align 16 %Q, i64 16, i32 16)
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ret i8* %P
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; CHECK-DAG: movl $16, %edx
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; CHECK-DAG: movl $16, %ecx
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; CHECK: __llvm_memcpy_element_atomic_16
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}
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define void @test_memcpy_args(i8** %Storage) {
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; CHECK: test_memcpy_args
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%Dst = load i8*, i8** %Storage
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%Src.addr = getelementptr i8*, i8** %Storage, i64 1
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%Src = load i8*, i8** %Src.addr
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; First argument
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; CHECK-DAG: movq (%rdi), [[REG1:%r.+]]
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; CHECK-DAG: movq [[REG1]], %rdi
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; Second argument
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; CHECK-DAG: movq 8(%rdi), %rsi
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; Third argument
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; CHECK-DAG: movl $4, %edx
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; Fourth argument
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; CHECK-DAG: movl $4, %ecx
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; CHECK: __llvm_memcpy_element_atomic_4
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call void @llvm.memcpy.element.atomic.p0i8.p0i8(i8* align 4 %Dst, i8* align 4 %Src, i64 4, i32 4)
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ret void
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}
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declare void @llvm.memcpy.element.atomic.p0i8.p0i8(i8* nocapture, i8* nocapture, i64, i32) nounwind
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