1 ; NOTE: Assertions have been autogenerated by utils/update_test_checks.py UTC_ARGS: --check-globals
2 ; RUN: opt < %s -passes=globalopt -S | FileCheck %s
3 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"
5 @G = internal global ptr null ; <ptr> [#uses=3]
8 ; CHECK: @[[G:[a-zA-Z0-9_$"\\.-]+]] = internal unnamed_addr global ptr null
10 define void @init() #0 {
12 ; CHECK-NEXT: [[MALLOCCALL:%.*]] = tail call ptr @malloc(i64 4)
13 ; CHECK-NEXT: store ptr [[MALLOCCALL]], ptr @G, align 8
14 ; CHECK-NEXT: [[GV:%.*]] = load ptr, ptr @G, align 8
15 ; CHECK-NEXT: store i32 0, ptr [[GV]], align 4
16 ; CHECK-NEXT: ret void
18 %malloccall = tail call ptr @malloc(i64 4)
19 store ptr %malloccall, ptr @G
20 %GV = load ptr, ptr @G
25 declare noalias ptr @malloc(i64)
27 define i32 @get() #0 {
29 ; CHECK-NEXT: [[GV:%.*]] = load ptr, ptr @G, align 8
30 ; CHECK-NEXT: [[V:%.*]] = load i32, ptr [[GV]], align 4
31 ; CHECK-NEXT: ret i32 [[V]]
33 %GV = load ptr, ptr @G
34 %V = load i32, ptr %GV
38 attributes #0 = { null_pointer_is_valid }
40 ; CHECK: attributes #[[ATTR0:[0-9]+]] = { null_pointer_is_valid }