llvm-6502/memmove-0.ll at f1355a55f8d815f5385e9a4432195f03b65f3a42 - llvm-6502 - Applefritter: Git

6502/llvm-6502

mirror of https://github.com/c64scene-ar/llvm-6502.git synced 2024-11-13 06:06:27 +00:00

Dan Gohman 5f43f92c69 If the source and destination pointers in an llvm.memmove are known

to not alias each other, it can be translated as an llvm.memcpy.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@41489 91177308-0d34-0410-b5e6-96231b3b80d8

2007-08-27 16:26:13 +00:00

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LLVM

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 ; RUN: llvm-as < %s | llc -march=x86 | grep {call	memcpy}
 declare void @llvm.memmove.i64(i8* %d, i8* %s, i64 %l, i32 %a)
 define void @foo(i8* noalias %d, i8* noalias %s, i64 %l)
 {
   call void @llvm.memmove.i64(i8* %d, i8* %s, i64 %l, i32 1)
   ret void
 }