llvm-6502/test/CodeGen/X86/byval3.ll
Evan Cheng 1887c1c2f9 Fix a number of byval / memcpy / memset related codegen issues.
1. x86-64 byval alignment should be max of 8 and alignment of type. Previously the code was not doing what the commit message was saying.
2. Do not use byte repeat move and store operations. These are slow.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@55139 91177308-0d34-0410-b5e6-96231b3b80d8
2008-08-21 21:00:15 +00:00

31 lines
1.2 KiB
LLVM

; RUN: llvm-as < %s | llc -march=x86-64 | grep rep.movsq | count 2
; RUN: llvm-as < %s | llc -march=x86 | grep rep.movsl | count 2
%struct.s = type { i32, i32, i32, i32, i32, i32, i32, i32,
i32, i32, i32, i32, i32, i32, i32, i32,
i32, i32, i32, i32, i32, i32, i32, i32,
i32, i32, i32, i32, i32, i32, i32, i32,
i32 }
define void @g(i32 %a1, i32 %a2, i32 %a3, i32 %a4, i32 %a5, i32 %a6) nounwind {
entry:
%d = alloca %struct.s, align 16
%tmp = getelementptr %struct.s* %d, i32 0, i32 0
store i32 %a1, i32* %tmp, align 16
%tmp2 = getelementptr %struct.s* %d, i32 0, i32 1
store i32 %a2, i32* %tmp2, align 16
%tmp4 = getelementptr %struct.s* %d, i32 0, i32 2
store i32 %a3, i32* %tmp4, align 16
%tmp6 = getelementptr %struct.s* %d, i32 0, i32 3
store i32 %a4, i32* %tmp6, align 16
%tmp8 = getelementptr %struct.s* %d, i32 0, i32 4
store i32 %a5, i32* %tmp8, align 16
%tmp10 = getelementptr %struct.s* %d, i32 0, i32 5
store i32 %a6, i32* %tmp10, align 16
call void @f( %struct.s* %d byval)
call void @f( %struct.s* %d byval)
ret void
}
declare void @f(%struct.s* byval)