29 lines
1.1 KiB
LLVM
29 lines
1.1 KiB
LLVM
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; RUN: opt -globalopt -instcombine %s -S -o - | FileCheck %s
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; Static constructor should have been optimized out
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; CHECK: i32 @main
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; CHECK-NEXT: ret i32 69905
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; CHECK-NOT: _GLOBAL__sub_I_main.cpp
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target datalayout = "e-m:e-i64:64-f80:128-n8:16:32:64-S128"
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target triple = "x86_64-pc-linux-gnu"
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%struct.S = type { %struct.A* }
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%struct.A = type { i64, i64 }
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@s = internal local_unnamed_addr global %struct.S zeroinitializer, align 8
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@llvm.global_ctors = appending global [1 x { i32, void ()*, i8* }] [{ i32, void ()*, i8* } { i32 65535, void ()* @_GLOBAL__sub_I_main.cpp, i8* null }]
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@gA = available_externally dso_local local_unnamed_addr global %struct.A* inttoptr (i64 69905 to %struct.A*), align 8
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define dso_local i32 @main() local_unnamed_addr {
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%1 = load i64, i64* bitcast (%struct.S* @s to i64*), align 8
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%2 = trunc i64 %1 to i32
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ret i32 %2
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}
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define internal void @_GLOBAL__sub_I_main.cpp() section ".text.startup" {
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%1 = load i64, i64* bitcast (%struct.A** @gA to i64*), align 8
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store i64 %1, i64* bitcast (%struct.S* @s to i64*), align 8
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ret void
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}
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