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llvm-mirror/test/Verifier/memcpy-inline.ll
Guillaume Chatelet 1afb32cf33 [instrinsics] Add @llvm.memcpy.inline instrinsics
Summary:
This is a follow up on D61634. It adds an LLVM IR intrinsic to allow better implementation of memcpy from C++.
A follow up CL will add the intrinsics in Clang.

Reviewers: courbet, theraven, t.p.northover, jdoerfert, tejohnson

Subscribers: hiraditya, llvm-commits

Tags: #llvm

Differential Revision: https://reviews.llvm.org/D71710
2020-01-28 09:42:01 +01:00

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322 B
LLVM

; RUN: not opt -verify < %s 2>&1 | FileCheck %s
; CHECK: alignment is not a power of two
define void @foo(i8* %P, i8* %Q) {
call void @llvm.memcpy.inline.p0i8.p0i8.i32(i8* align 3 %P, i8* %Q, i32 4, i1 false)
ret void
}
declare void @llvm.memcpy.inline.p0i8.p0i8.i32(i8* nocapture, i8* nocapture, i32, i1) nounwind