maxjhandsome
/
llvm-project
forked from OSchip/llvm-project
1
0
Fork 0
Code Issues Pull Requests Packages Releases Wiki Activity
llvm-project/llvm/test/CodeGen/AArch64/arm64-2012-05-07-MemcpyAlig...

22 lines
846 B
LLVM
Raw Normal View History

ARM64: initial backend import This adds a second implementation of the AArch64 architecture to LLVM, accessible in parallel via the "arm64" triple. The plan over the coming weeks & months is to merge the two into a single backend, during which time thorough code review should naturally occur. Everything will be easier with the target in-tree though, hence this commit. llvm-svn: 205090
2014-03-29 18:18:08 +08:00
; RUN: llc < %s -march arm64 -mcpu=cyclone | FileCheck %s
; <rdar://problem/11294426>
@b = private unnamed_addr constant [3 x i32] [i32 1768775988, i32 1685481784, i32 1836253201], align 4
; The important thing for this test is that we need an unaligned load of `l_b'
; ("ldr w2, [x1, #8]" in this case).
; CHECK: adrp x[[PAGE:[0-9]+]], {{l_b@PAGE|.Lb}}
; CHECK: add x[[ADDR:[0-9]+]], x[[PAGE]], {{l_b@PAGEOFF|:lo12:.Lb}}
; CHECK-NEXT: ldr [[VAL:w[0-9]+]], [x[[ADDR]], #8]
; CHECK-NEXT: str [[VAL]], [x0, #8]
; CHECK-NEXT: ldr [[VAL2:x[0-9]+]], [x[[ADDR]]]
; CHECK-NEXT: str [[VAL2]], [x0]
define void @foo(i8* %a) {
Revert "Change memcpy/memset/memmove to have dest and source alignments." This reverts commit r253511. This likely broke the bots in http://lab.llvm.org:8011/builders/clang-ppc64-elf-linux2/builds/20202 http://bb.pgr.jp/builders/clang-3stage-i686-linux/builds/3787 llvm-svn: 253543
2015-11-19 13:56:52 +08:00
call void @llvm.memcpy.p0i8.p0i8.i64(i8* %a, i8* bitcast ([3 x i32]* @b to i8*), i64 12, i32 4, i1 false)
ARM64: initial backend import This adds a second implementation of the AArch64 architecture to LLVM, accessible in parallel via the "arm64" triple. The plan over the coming weeks & months is to merge the two into a single backend, during which time thorough code review should naturally occur. Everything will be easier with the target in-tree though, hence this commit. llvm-svn: 205090
2014-03-29 18:18:08 +08:00
ret void
}
Revert "Change memcpy/memset/memmove to have dest and source alignments." This reverts commit r253511. This likely broke the bots in http://lab.llvm.org:8011/builders/clang-ppc64-elf-linux2/builds/20202 http://bb.pgr.jp/builders/clang-3stage-i686-linux/builds/3787 llvm-svn: 253543
2015-11-19 13:56:52 +08:00
declare void @llvm.memcpy.p0i8.p0i8.i64(i8* nocapture, i8* nocapture, i64, i32, i1) nounwind