llvm/test/Verifier/element-wise-atomic-memory-intrinsics.ll
Daniel Neilson 470c6959b7 [Atomics] Rename and change prototype for atomic memcpy intrinsic
Summary:

Background: http://lists.llvm.org/pipermail/llvm-dev/2017-May/112779.html

This change is to alter the prototype for the atomic memcpy intrinsic. The prototype itself is being changed to more closely resemble the semantics and parameters of the llvm.memcpy intrinsic -- to ease later combination of the llvm.memcpy and atomic memcpy intrinsics. Furthermore, the name of the atomic memcpy intrinsic is being changed to make it clear that it is not a generic atomic memcpy, but specifically a memcpy is unordered atomic.

Reviewers: reames, sanjoy, efriedma

Reviewed By: reames

Subscribers: mzolotukhin, anna, llvm-commits, skatkov

Differential Revision: https://reviews.llvm.org/D33240

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@305558 91177308-0d34-0410-b5e6-96231b3b80d8
2017-06-16 14:43:59 +00:00

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1.5 KiB
LLVM

; RUN: not opt -verify < %s 2>&1 | FileCheck %s
define void @test_memcpy(i8* %P, i8* %Q, i32 %A, i32 %E) {
; CHECK: element size of the element-wise unordered atomic memory intrinsic must be a constant int
call void @llvm.memcpy.element.unordered.atomic.p0i8.p0i8.i32(i8* align 4 %P, i8* align 4 %Q, i32 1, i32 %E)
; CHECK: element size of the element-wise atomic memory intrinsic must be a power of 2
call void @llvm.memcpy.element.unordered.atomic.p0i8.p0i8.i32(i8* align 4 %P, i8* align 4 %Q, i32 1, i32 3)
; CHECK: constant length must be a multiple of the element size in the element-wise atomic memory intrinsic
call void @llvm.memcpy.element.unordered.atomic.p0i8.p0i8.i32(i8* align 4 %P, i8* align 4 %Q, i32 7, i32 4)
; CHECK: incorrect alignment of the destination argument
call void @llvm.memcpy.element.unordered.atomic.p0i8.p0i8.i32(i8* %P, i8* align 4 %Q, i32 1, i32 1)
; CHECK: incorrect alignment of the destination argument
call void @llvm.memcpy.element.unordered.atomic.p0i8.p0i8.i32(i8* align 1 %P, i8* align 4 %Q, i32 4, i32 4)
; CHECK: incorrect alignment of the source argument
call void @llvm.memcpy.element.unordered.atomic.p0i8.p0i8.i32(i8* align 4 %P, i8* %Q, i32 1, i32 1)
; CHECK: incorrect alignment of the source argument
call void @llvm.memcpy.element.unordered.atomic.p0i8.p0i8.i32(i8* align 4 %P, i8* align 1 %Q, i32 4, i32 4)
ret void
}
declare void @llvm.memcpy.element.unordered.atomic.p0i8.p0i8.i32(i8* nocapture, i8* nocapture, i32, i32) nounwind
; CHECK: input module is broken!