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b8b226b517
This commit defines subtarget feature strict-align and uses it instead of cl::opt -aarch64-strict-align to decide whether strict alignment should be forced. rdar://problem/21529937 git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@243516 91177308-0d34-0410-b5e6-96231b3b80d8
15 lines
498 B
LLVM
15 lines
498 B
LLVM
; RUN: llc -mtriple=arm64-apple-ios -mattr=+strict-align < %s | FileCheck %s
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; Small (16-bytes here) unaligned memcpys should stay memcpy calls if
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; strict-alignment is turned on.
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define void @t0(i8* %out, i8* %in) {
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; CHECK-LABEL: t0:
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; CHECK: orr w2, wzr, #0x10
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; CHECK-NEXT: bl _memcpy
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entry:
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call void @llvm.memcpy.p0i8.p0i8.i64(i8* %out, i8* %in, i64 16, i32 1, i1 false)
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ret void
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}
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declare void @llvm.memcpy.p0i8.p0i8.i64(i8* nocapture, i8* nocapture readonly, i64, i32, i1)
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