1 ; RUN: opt < %s -passes=globalopt -S | FileCheck %s
2 target datalayout = "E-p:64:64:64-a0:0:8-f32:32:32-f64:64:64-i1:8:8-i8:8:8-i16:16:16-i32:32:32-i64:32:64-v64:64:64-v128:128:128"
4 %struct.foo = type { i32, i32 }
6 @X = internal global ptr null ; <ptr> [#uses=2]
10 define void @bar(i32 %Size) nounwind noinline #0 {
13 %malloccall = tail call ptr @malloc(i64 8000000) ; <ptr> [#uses=1]
14 %.sub = getelementptr [1000000 x %struct.foo], ptr %malloccall, i32 0, i32 0 ; <ptr> [#uses=1]
15 store ptr %.sub, ptr @X, align 4
19 declare noalias ptr @malloc(i64)
21 define i32 @baz() nounwind readonly noinline #0 {
24 %tmpLD1 = load ptr, ptr @X, align 4 ; <ptr> [#uses=1]
25 ; CHECK: load ptr, ptr @X, align 4
28 bb1: ; preds = %bb1, %bb1.thread
29 %tmp = phi ptr [%tmpLD1, %bb1.thread ], [ %tmpLD2, %bb1 ] ; <i32> [#uses=2]
30 ; CHECK: %tmp = phi ptr [ %tmpLD1, %bb1.thread ], [ %tmpLD2, %bb1 ]
31 %i.0.reg2mem.0 = phi i32 [ 0, %bb1.thread ], [ %indvar.next, %bb1 ] ; <i32> [#uses=2]
32 %sum.0.reg2mem.0 = phi i32 [ 0, %bb1.thread ], [ %tmp3, %bb1 ] ; <i32> [#uses=1]
33 %tmp1 = getelementptr %struct.foo, ptr %tmp, i32 %i.0.reg2mem.0, i32 0 ; <ptr> [#uses=1]
34 %tmp2 = load i32, ptr %tmp1, align 4 ; <i32> [#uses=1]
35 ; CHECK: load i32, ptr %tmp1, align 4
36 %tmp6 = add i32 %tmp2, %sum.0.reg2mem.0 ; <i32> [#uses=2]
37 %tmp4 = getelementptr %struct.foo, ptr %tmp, i32 %i.0.reg2mem.0, i32 1 ; <ptr> [#uses=1]
38 %tmp5 = load i32 , ptr %tmp4
39 ; CHECK: load i32, ptr %tmp4
40 %tmp3 = add i32 %tmp5, %tmp6
41 %indvar.next = add i32 %i.0.reg2mem.0, 1 ; <i32> [#uses=2]
43 %tmpLD2 = load ptr, ptr @X, align 4 ; <ptr> [#uses=1]
44 ; CHECK: load ptr, ptr @X, align 4
46 %exitcond = icmp eq i32 %indvar.next, 1200 ; <i1> [#uses=1]
47 br i1 %exitcond, label %bb2, label %bb1
53 attributes #0 = { null_pointer_is_valid }