1; RUN: opt -passes=globalopt,instcombine %s -S -o - | FileCheck %s 2 3; Static constructor should have been optimized out 4; CHECK: i32 @main 5; CHECK-NEXT: ret i32 69905 6; CHECK-NOT: _GLOBAL__sub_I_main.cpp 7 8target datalayout = "e-m:e-i64:64-f80:128-n8:16:32:64-S128" 9target triple = "x86_64-pc-linux-gnu" 10 11%struct.S = type { ptr } 12%struct.A = type { i64, i64 } 13 14@s = internal local_unnamed_addr global %struct.S zeroinitializer, align 8 15@llvm.global_ctors = appending global [1 x { i32, ptr, ptr }] [{ i32, ptr, ptr } { i32 65535, ptr @_GLOBAL__sub_I_main.cpp, ptr null }] 16@gA = available_externally dso_local local_unnamed_addr global ptr inttoptr (i64 69905 to ptr), align 8 17 18define dso_local i32 @main() local_unnamed_addr { 19 %1 = load i64, ptr @s, align 8 20 %2 = trunc i64 %1 to i32 21 ret i32 %2 22} 23 24define internal void @_GLOBAL__sub_I_main.cpp() section ".text.startup" { 25 %1 = load i64, ptr @gA, align 8 26 store i64 %1, ptr @s, align 8 27 ret void 28} 29