File: cgdata-merge-gvar-nsconst.ll

package info (click to toggle)
llvm-toolchain-20 1%3A20.1.6-1~exp1
  • links: PTS, VCS
  • area: main
  • in suites: experimental
  • size: 2,111,304 kB
  • sloc: cpp: 7,438,677; ansic: 1,393,822; asm: 1,012,926; python: 241,650; f90: 86,635; objc: 75,479; lisp: 42,144; pascal: 17,286; sh: 10,027; ml: 5,082; perl: 4,730; awk: 3,523; makefile: 3,349; javascript: 2,251; xml: 892; fortran: 672
file content (32 lines) | stat: -rw-r--r-- 1,469 bytes parent folder | download | duplicates (6)
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
; This test verifies that global variables (ns constant) are hashed based on their initial contents,
; allowing them to be merged even if they appear different due to their names.
; Now they become identical functions that can be merged without creating a parameter

; RUN: llc -mtriple=arm64-apple-darwin -enable-global-merge-func=true -global-merging-skip-no-params=false < %s | FileCheck %s

; CHECK: _f1.Tgm
; CHECK: _f2.Tgm

%struct.__NSConstantString_tag = type { ptr, i32, ptr, i64 }
@__CFConstantStringClassReference = external global [0 x i32]
@.str.2 = private unnamed_addr constant [9 x i8] c"cfstring\00", section "__TEXT,__cstring,cstring_literals", align 1
@_unnamed_cfstring_ = private global %struct.__NSConstantString_tag { ptr @__CFConstantStringClassReference, i32 1992, ptr @.str.2, i64 8 }, section "__DATA,__cfstring", align 8

@.str.3 = private unnamed_addr constant [9 x i8] c"cfstring\00", section "__TEXT,__cstring,cstring_literals", align 1
@_unnamed_cfstring_.2 = private global %struct.__NSConstantString_tag { ptr @__CFConstantStringClassReference, i32 1992, ptr @.str.3, i64 8 }, section "__DATA,__cfstring", align 8

declare i32 @hoo(ptr noundef)

define i32 @f1() {
entry:
  %call = tail call i32 @hoo(ptr noundef nonnull @_unnamed_cfstring_)
  %add = sub nsw i32 %call, 1
  ret i32 %add
}

define i32 @f2() {
entry:
  %call = tail call i32 @hoo(ptr noundef nonnull @_unnamed_cfstring_.2)
  %add = sub nsw i32 %call, 1
  ret i32 %add
}