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cde17c8a3e
This change adds a new intrinsic which is intended to provide memcpy functionality with additional atomicity guarantees. Please refer to the review thread or language reference for further details. Differential Revision: https://reviews.llvm.org/D27133 llvm-svn: 290708
18 lines
732 B
LLVM
18 lines
732 B
LLVM
; RUN: not opt -verify < %s 2>&1 | FileCheck %s
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define void @test_memcpy(i8* %P, i8* %Q) {
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; CHECK: element size of the element-wise atomic memory intrinsic must be a power of 2
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call void @llvm.memcpy.element.atomic.p0i8.p0i8(i8* align 2 %P, i8* align 2 %Q, i64 4, i32 3)
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; CHECK: incorrect alignment of the destination argument
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call void @llvm.memcpy.element.atomic.p0i8.p0i8(i8* align 2 %P, i8* align 4 %Q, i64 4, i32 4)
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; CHECK: incorrect alignment of the source argument
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call void @llvm.memcpy.element.atomic.p0i8.p0i8(i8* align 4 %P, i8* align 2 %Q, 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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; CHECK: input module is broken!
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