llvm-6502/test/CodeGen/X86/byval7.ll

; RUN: llvm-as < %s | llc -march=x86 -mcpu=yonah | grep add | grep 16

	%struct.S = type { <2 x i64> }

define i32 @main() nounwind  {
entry:
	%s = alloca %struct.S		; <%struct.S*> [#uses=2]
	%tmp15 = getelementptr %struct.S* %s, i32 0, i32 0		; <<2 x i64>*> [#uses=1]
	store <2 x i64> < i64 8589934595, i64 1 >, <2 x i64>* %tmp15, align 16
	call void @t( i32 1, %struct.S* byval  %s ) nounwind 
	ret i32 0
}

declare void @t(i32, %struct.S* byval )
Alignment of struct containing vectors depends on whether SSE is present, on Darwin anyway. Make it explicit. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@46909 91177308-0d34-0410-b5e6-96231b3b80d8 2008-02-09 19:04:25 +00:00			`; RUN: llvm-as < %s \| llc -march=x86 -mcpu=yonah \| grep add \| grep 16`
Let each target decide byval alignment. For X86, it's 4-byte unless the aggregare contains SSE vector(s). For x86-64, it's max of 8 or alignment of the type. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@46286 91177308-0d34-0410-b5e6-96231b3b80d8 2008-01-23 23:17:41 +00:00
			`%struct.S = type { <2 x i64> }`

			`define i32 @main() nounwind {`
			`entry:`
			`%s = alloca %struct.S ; <%struct.S*> [#uses=2]`
			`%tmp15 = getelementptr %struct.S* %s, i32 0, i32 0 ; <<2 x i64>*> [#uses=1]`
			`store <2 x i64> < i64 8589934595, i64 1 >, <2 x i64>* %tmp15, align 16`
			`call void @t( i32 1, %struct.S* byval %s ) nounwind`
			`ret i32 0`
			`}`

			`declare void @t(i32, %struct.S* byval )`