44 lines
1.4 KiB
LLVM
44 lines
1.4 KiB
LLVM
; NOTE: Assertions have been autogenerated by utils/update_test_checks.py UTC_ARGS: --check-globals
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; RUN: opt < %s -passes=globalopt -S | FileCheck %s
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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"
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@G = internal global i32* null ; <i32**> [#uses=3]
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;.
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; CHECK: @[[G:[a-zA-Z0-9_$"\\.-]+]] = internal unnamed_addr global i32* null
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;.
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define void @init() #0 {
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; CHECK-LABEL: @init(
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; CHECK-NEXT: [[MALLOCCALL:%.*]] = tail call i8* @malloc(i64 4)
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; CHECK-NEXT: [[P:%.*]] = bitcast i8* [[MALLOCCALL]] to i32*
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; CHECK-NEXT: store i32* [[P]], i32** @G, align 8
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; CHECK-NEXT: [[GV:%.*]] = load i32*, i32** @G, align 8
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; CHECK-NEXT: store i32 0, i32* [[GV]], align 4
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; CHECK-NEXT: ret void
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;
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%malloccall = tail call i8* @malloc(i64 4)
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%P = bitcast i8* %malloccall to i32*
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store i32* %P, i32** @G
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%GV = load i32*, i32** @G
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store i32 0, i32* %GV
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ret void
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}
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declare noalias i8* @malloc(i64)
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define i32 @get() #0 {
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; CHECK-LABEL: @get(
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; CHECK-NEXT: [[GV:%.*]] = load i32*, i32** @G, align 8
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; CHECK-NEXT: [[V:%.*]] = load i32, i32* [[GV]], align 4
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; CHECK-NEXT: ret i32 [[V]]
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;
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%GV = load i32*, i32** @G
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%V = load i32, i32* %GV
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ret i32 %V
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}
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attributes #0 = { null_pointer_is_valid }
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;.
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; CHECK: attributes #[[ATTR0:[0-9]+]] = { null_pointer_is_valid }
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;.
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