39 lines
1.9 KiB
LLVM
39 lines
1.9 KiB
LLVM
; This test verifies that global variables (objc metadata) are hashed based on their initial contents,
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; allowing them to be merged even if they appear different due to their names.
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; Now they become identical functions that can be merged without creating a parameter
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; RUN: llc -mtriple=arm64-apple-darwin -enable-global-merge-func=true -global-merging-skip-no-params=false < %s | FileCheck %s
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; CHECK: _f1.Tgm
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; CHECK: _f2.Tgm
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%struct._class_t = type { ptr, ptr, ptr, ptr, ptr }
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@"OBJC_CLASS_$_MyClass" = external global %struct._class_t
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@"OBJC_CLASSLIST_REFERENCES_$_" = internal global ptr @"OBJC_CLASS_$_MyClass", section "__DATA,__objc_classrefs,regular,no_dead_strip", align 8
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@"OBJC_CLASSLIST_REFERENCES_$_.1" = internal global ptr @"OBJC_CLASS_$_MyClass", section "__DATA,__objc_classrefs,regular,no_dead_strip", align 8
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@OBJC_METH_VAR_NAME_ = private unnamed_addr constant [6 x i8] c"hello\00", section "__TEXT,__objc_methname,cstring_literals", align 1
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@OBJC_METH_VAR_NAME_.1 = private unnamed_addr constant [6 x i8] c"hello\00", section "__TEXT,__objc_methname,cstring_literals", align 1
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@OBJC_SELECTOR_REFERENCES_ = internal externally_initialized global ptr @OBJC_METH_VAR_NAME_, section "__DATA,__objc_selrefs,literal_pointers,no_dead_strip", align 8
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@OBJC_SELECTOR_REFERENCES_.1 = internal externally_initialized global ptr @OBJC_METH_VAR_NAME_.1, section "__DATA,__objc_selrefs,literal_pointers,no_dead_strip", align 8
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declare ptr @objc_msgSend(ptr, ptr, ...)
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define i32 @f1() {
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entry:
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%0 = load ptr, ptr @"OBJC_CLASSLIST_REFERENCES_$_", align 8
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%1 = load ptr, ptr @OBJC_SELECTOR_REFERENCES_, align 8
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%call = tail call i32 @objc_msgSend(ptr noundef %0, ptr noundef %1)
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ret i32 %call
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}
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define i32 @f2() {
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entry:
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%0 = load ptr, ptr @"OBJC_CLASSLIST_REFERENCES_$_.1", align 8
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%1 = load ptr, ptr @OBJC_SELECTOR_REFERENCES_.1, align 8
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%call = tail call i32 @objc_msgSend(ptr noundef %0, ptr noundef %1)
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ret i32 %call
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}
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