gistfile1.h

void something(int*,int,int,int);

int blah(int* vals) {
  int a = vals[0];
  int b = vals[1];
  int c = vals[0];

  something(vals,a,b,c);

  int d = vals[1];

  return d;
}

gistfile2.ll

; ModuleID = 'aliasing.cpp'
target datalayout = "e-p:32:32:32-i1:8:8-i8:8:8-i16:16:16-i32:32:32-i64:32:64-f32:32:32-f64:32:64-v64:64:64-v128:128:128-a0:0:64-f80:128:128"
target triple = "i386-apple-darwin9"

define i32 @_Z4blahPi(i32* %vals) {
entry:
	%tmp3 = load i32* %vals, align 4		; <i32> [#uses=2]
	%tmp5 = getelementptr i32* %vals, i32 1		; <i32*> [#uses=2]
	%tmp6 = load i32* %tmp5, align 4		; <i32> [#uses=1]
	tail call void @_Z9somethingPiiii( i32* %vals, i32 %tmp3, i32 %tmp6, i32 %tmp3 )
	%tmp16 = load i32* %tmp5, align 4		; <i32> [#uses=1]
	ret i32 %tmp16
}

declare void @_Z9somethingPiiii(i32*, i32, i32, i32)

gistfile3.txt

__Z4blahPi:
Leh_func_begin1:
Llabel1:
	pushl	%esi
	subl	$24, %esp
	movl	32(%esp), %esi
	movl	(%esi), %eax
	movl	4(%esi), %ecx
	movl	%eax, 12(%esp)
	movl	%ecx, 8(%esp)
	movl	%eax, 4(%esp)
	movl	%esi, (%esp)
	call	L__Z9somethingPiiii$stub
	movl	4(%esi), %eax
	addl	$24, %esp
	popl	%esi
	ret