test/Transforms/GlobalOpt/constantfold-initializers.ll

; RUN: opt < %s -S -globalopt | FileCheck %s

target datalayout = "e-p:64:64:64-i1:8:8-i8:8:8-i16:16:16-i32:32:32-i64:64:64-f32:32:32-f64:64:64-v64:64:64-v128:128:128-a0:0:64-s0:64:64-f80:128:128"

@.str91250 = global [3 x i8] zeroinitializer

; CHECK: @A = global i1 false
@A = global i1 icmp ne (i64 sub nsw (i64 ptrtoint (i8* getelementptr inbounds ([3 x i8]* @.str91250, i64 0, i64 1) to i64), i64 ptrtoint ([3 x i8]* @.str91250 to i64)), i64 1)

; PR11352

@xs = global [2 x i32] zeroinitializer, align 4
; CHECK: @xs = global [2 x i32] [i32 1, i32 1]

define internal void @test1() {
entry:
  store i32 1, i32* getelementptr inbounds ([2 x i32]* @xs, i64 0, i64 0)
  %0 = load i32* getelementptr inbounds ([2 x i32]* @xs, i32 0, i64 0), align 4
  store i32 %0, i32* getelementptr inbounds ([2 x i32]* @xs, i64 0, i64 1)
  ret void
}

; PR12060

%closure = type { i32 }

@f = internal global %closure zeroinitializer, align 4
@m = global i32 0, align 4
; CHECK-NOT: @f
; CHECK: @m = global i32 13

define internal i32 @test2_helper(%closure* %this, i32 %b) {
entry:
  %0 = getelementptr inbounds %closure* %this, i32 0, i32 0
  %1 = load i32* %0, align 4
  %add = add nsw i32 %1, %b
  ret i32 %add
}

define internal void @test2() {
entry:
  store i32 4, i32* getelementptr inbounds (%closure* @f, i32 0, i32 0)
  %call = call i32 @test2_helper(%closure* @f, i32 9)
  store i32 %call, i32* @m, align 4
  ret void
}

@llvm.global_ctors = appending constant
  [2 x { i32, void ()* }]
  [{ i32, void ()* } { i32 65535, void ()* @test1 },
   { i32, void ()* } { i32 65535, void ()* @test2 }]