41 lines
1.2 KiB
LLVM
41 lines
1.2 KiB
LLVM
; NOTE: Assertions have been autogenerated by utils/update_test_checks.py UTC_ARGS: --check-globals
|
|
; RUN: opt < %s -passes=globalopt -S | FileCheck %s
|
|
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"
|
|
|
|
@G = internal global ptr null ; <ptr> [#uses=3]
|
|
|
|
;.
|
|
; CHECK: @[[G:[a-zA-Z0-9_$"\\.-]+]] = internal unnamed_addr global ptr null
|
|
;.
|
|
define void @init() #0 {
|
|
; CHECK-LABEL: @init(
|
|
; CHECK-NEXT: [[MALLOCCALL:%.*]] = tail call ptr @malloc(i64 4)
|
|
; CHECK-NEXT: store ptr [[MALLOCCALL]], ptr @G, align 8
|
|
; CHECK-NEXT: [[GV:%.*]] = load ptr, ptr @G, align 8
|
|
; CHECK-NEXT: store i32 0, ptr [[GV]], align 4
|
|
; CHECK-NEXT: ret void
|
|
;
|
|
%malloccall = tail call ptr @malloc(i64 4)
|
|
store ptr %malloccall, ptr @G
|
|
%GV = load ptr, ptr @G
|
|
store i32 0, ptr %GV
|
|
ret void
|
|
}
|
|
|
|
declare noalias ptr @malloc(i64)
|
|
|
|
define i32 @get() #0 {
|
|
; CHECK-LABEL: @get(
|
|
; CHECK-NEXT: [[GV:%.*]] = load ptr, ptr @G, align 8
|
|
; CHECK-NEXT: [[V:%.*]] = load i32, ptr [[GV]], align 4
|
|
; CHECK-NEXT: ret i32 [[V]]
|
|
;
|
|
%GV = load ptr, ptr @G
|
|
%V = load i32, ptr %GV
|
|
ret i32 %V
|
|
}
|
|
|
|
attributes #0 = { null_pointer_is_valid }
|
|
;.
|
|
; CHECK: attributes #[[ATTR0:[0-9]+]] = { null_pointer_is_valid }
|
|
;.
|