xref: /llvm-project/llvm/test/Transforms/GlobalMerge/used.ll (revision bd9e14574a80d3c022d796d373aa92bdc63f4c26)
1; RUN: opt -global-merge -global-merge-max-offset=100 -S -o - %s | FileCheck %s
2; RUN: opt -passes='global-merge<max-offset=100>' -S -o - %s | FileCheck %s
3
4target datalayout = "e-p:64:64"
5target triple = "x86_64-unknown-linux-gnu"
6
7; CHECK: @_MergedGlobals = private global <{ i32, i32 }> <{ i32 3, i32 3 }>, align 4
8
9@a = internal global i32 1
10
11@b = internal global i32 2
12
13@c = internal global i32 3
14
15@d = internal global i32 3
16
17@llvm.used = appending global [1 x ptr] [ptr @a], section "llvm.metadata"
18@llvm.compiler.used = appending global [1 x ptr] [ptr @b], section "llvm.metadata"
19
20define void @use() {
21  ; CHECK: load i32, ptr @a
22  %x = load i32, ptr @a
23  ; CHECK: load i32, ptr @b
24  %y = load i32, ptr @b
25  ; CHECK: load i32, ptr @_MergedGlobals
26  %z1 = load i32, ptr @c
27  ; CHECK: load i32, ptr getelementptr inbounds (<{ i32, i32 }>, ptr @_MergedGlobals, i32 0, i32 1)
28  %z2 = load i32, ptr @d
29  ret void
30}
31