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llvm-project/llvm/test/Transforms/GlobalOpt/memset-null.ll

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Revert "Temporarily Revert "Add basic loop fusion pass."" The reversion apparently deleted the test/Transforms directory. Will be re-reverting again. llvm-svn: 358552
2019-04-17 12:52:47 +08:00
; RUN: opt -globalopt -S < %s | FileCheck %s
; PR10047
[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 10:35:32 +08:00
%0 = type { i32, void ()*, i8* }
Revert "Temporarily Revert "Add basic loop fusion pass."" The reversion apparently deleted the test/Transforms directory. Will be re-reverting again. llvm-svn: 358552
2019-04-17 12:52:47 +08:00
%struct.A = type { [100 x i32] }
; CHECK: @a
@a = global %struct.A zeroinitializer, align 4
[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 10:35:32 +08:00
@llvm.global_ctors = appending global [2 x %0] [%0 { i32 65535, void ()* @_GLOBAL__I_a, i8* null }, %0 { i32 65535, void ()* @_GLOBAL__I_b, i8* null }]
Revert "Temporarily Revert "Add basic loop fusion pass."" The reversion apparently deleted the test/Transforms directory. Will be re-reverting again. llvm-svn: 358552
2019-04-17 12:52:47 +08:00
declare void @llvm.memset.p0i8.i64(i8* nocapture, i8, i64, i1) nounwind
; CHECK-NOT: GLOBAL__I_a
define internal void @_GLOBAL__I_a() nounwind {
entry:
tail call void @llvm.memset.p0i8.i64(i8* align 4 bitcast (%struct.A* @a to i8*), i8 0, i64 400, i1 false) nounwind
ret void
}
%struct.X = type { i8 }
@y = global i8* null, align 8
@x = global %struct.X zeroinitializer, align 1
define internal void @_GLOBAL__I_b() nounwind {
entry:
%tmp.i.i.i = load i8*, i8** @y, align 8
tail call void @llvm.memset.p0i8.i64(i8* %tmp.i.i.i, i8 0, i64 10, i1 false) nounwind
ret void
}