llvm-for-llvmta/test/Transforms/GlobalMerge/used.ll

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2022-04-25 10:02:23 +02:00
; RUN: opt -global-merge -global-merge-max-offset=100 -S -o - %s | FileCheck %s
target datalayout = "e-p:64:64"
target triple = "x86_64-unknown-linux-gnu"
; CHECK: @_MergedGlobals = private global <{ i32, i32 }> <{ i32 3, i32 3 }>, align 4
@a = internal global i32 1
@b = internal global i32 2
@c = internal global i32 3
@d = internal global i32 3
@llvm.used = appending global [1 x i8*] [i8* bitcast (i32* @a to i8*)], section "llvm.metadata"
@llvm.compiler.used = appending global [1 x i8*] [i8* bitcast (i32* @b to i8*)], section "llvm.metadata"
define void @use() {
; CHECK: load i32, i32* @a
%x = load i32, i32* @a
; CHECK: load i32, i32* @b
%y = load i32, i32* @b
; CHECK: load i32, i32* getelementptr inbounds (<{ i32, i32 }>, <{ i32, i32 }>* @_MergedGlobals, i32 0, i32 0)
%z1 = load i32, i32* @c
; CHECK: load i32, i32* getelementptr inbounds (<{ i32, i32 }>, <{ i32, i32 }>* @_MergedGlobals, i32 0, i32 1)
%z2 = load i32, i32* @d
ret void
}