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llvm-mirror/test/Feature/global_pv.ll
Fangrui Song 7cb7bfede4 [IR] Disallow llvm.global_ctors and llvm.global_dtors of the 2-field form in textual format
The 3-field form was introduced by D3499 in 2014 and the legacy 2-field
form was planned to be removed in LLVM 4.0

For the textual format, this patch migrates the existing 2-field form to
use the 3-field form and deletes the compatibility code.
test/Verifier/global-ctors-2.ll checks we have a friendly error message.

For bitcode, lib/IR/AutoUpgrade UpgradeGlobalVariables will upgrade the
2-field form (add i8* null as the third field).

Reviewed By: rnk, dexonsmith

Differential Revision: https://reviews.llvm.org/D61547

llvm-svn: 360742
2019-05-15 02:35:32 +00:00

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516 B
LLVM

; RUN: opt -instcombine -S < %s | llvm-as
; RUN: opt -instcombine -globalopt -S < %s | llvm-as
@G1 = global i32 zeroinitializer
@G2 = global i32 zeroinitializer
@g = global <2 x i32*> zeroinitializer
%0 = type { i32, void ()*, i8* }
@llvm.global_ctors = appending global [1 x %0] [%0 { i32 65535, void ()* @test, i8* null }]
define internal void @test() {
%A = insertelement <2 x i32*> undef, i32* @G1, i32 0
%B = insertelement <2 x i32*> %A, i32* @G2, i32 1
store <2 x i32*> %B, <2 x i32*>* @g
ret void
}