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https://github.com/c64scene-ar/llvm-6502.git
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1ce3088669
This allows us to put dynamic initializers for weak data into the same comdat group as the data being initialized. This is necessary for MSVC ABI compatibility. Once we have comdats for guard variables, we can use the combination to help GlobalOpt fire more often for weak data with guarded initialization on other platforms. Reviewers: nlewycky Differential Revision: http://reviews.llvm.org/D3499 git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@209015 91177308-0d34-0410-b5e6-96231b3b80d8
116 lines
3.1 KiB
LLVM
116 lines
3.1 KiB
LLVM
; RUN: opt < %s -globalopt -S | FileCheck %s
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; CHECK-NOT: CTOR
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%ini = type { i32, void()*, i8* }
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@llvm.global_ctors = appending global [11 x %ini] [
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%ini { i32 65535, void ()* @CTOR1, i8* null },
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%ini { i32 65535, void ()* @CTOR1, i8* null },
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%ini { i32 65535, void ()* @CTOR2, i8* null },
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%ini { i32 65535, void ()* @CTOR3, i8* null },
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%ini { i32 65535, void ()* @CTOR4, i8* null },
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%ini { i32 65535, void ()* @CTOR5, i8* null },
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%ini { i32 65535, void ()* @CTOR6, i8* null },
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%ini { i32 65535, void ()* @CTOR7, i8* null },
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%ini { i32 65535, void ()* @CTOR8, i8* null },
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%ini { i32 65535, void ()* @CTOR9, i8* null },
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%ini { i32 2147483647, void ()* null, i8* null }
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]
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@G = global i32 0 ; <i32*> [#uses=1]
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@G2 = global i32 0 ; <i32*> [#uses=1]
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@G3 = global i32 -123 ; <i32*> [#uses=2]
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@X = global { i32, [2 x i32] } { i32 0, [2 x i32] [ i32 17, i32 21 ] } ; <{ i32, [2 x i32] }*> [#uses=2]
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@Y = global i32 -1 ; <i32*> [#uses=2]
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@Z = global i32 123 ; <i32*> [#uses=1]
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@D = global double 0.000000e+00 ; <double*> [#uses=1]
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@CTORGV = internal global i1 false ; <i1*> [#uses=2]
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define internal void @CTOR1() {
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ret void
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}
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define internal void @CTOR2() {
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%A = add i32 1, 23 ; <i32> [#uses=1]
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store i32 %A, i32* @G
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store i1 true, i1* @CTORGV
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ret void
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}
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define internal void @CTOR3() {
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%X = or i1 true, false ; <i1> [#uses=1]
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br label %Cont
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Cont: ; preds = %0
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br i1 %X, label %S, label %T
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S: ; preds = %Cont
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store i32 24, i32* @G2
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ret void
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T: ; preds = %Cont
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ret void
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}
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define internal void @CTOR4() {
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%X = load i32* @G3 ; <i32> [#uses=1]
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%Y = add i32 %X, 123 ; <i32> [#uses=1]
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store i32 %Y, i32* @G3
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ret void
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}
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define internal void @CTOR5() {
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%X.2p = getelementptr inbounds { i32, [2 x i32] }* @X, i32 0, i32 1, i32 0 ; <i32*> [#uses=2]
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%X.2 = load i32* %X.2p ; <i32> [#uses=1]
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%X.1p = getelementptr inbounds { i32, [2 x i32] }* @X, i32 0, i32 0 ; <i32*> [#uses=1]
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store i32 %X.2, i32* %X.1p
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store i32 42, i32* %X.2p
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ret void
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}
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define internal void @CTOR6() {
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%A = alloca i32 ; <i32*> [#uses=2]
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%y = load i32* @Y ; <i32> [#uses=1]
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store i32 %y, i32* %A
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%Av = load i32* %A ; <i32> [#uses=1]
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%Av1 = add i32 %Av, 1 ; <i32> [#uses=1]
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store i32 %Av1, i32* @Y
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ret void
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}
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define internal void @CTOR7() {
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call void @setto( i32* @Z, i32 0 )
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ret void
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}
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define void @setto(i32* %P, i32 %V) {
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store i32 %V, i32* %P
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ret void
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}
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declare double @cos(double)
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define internal void @CTOR8() {
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%X = call double @cos( double 0.000000e+00 ) ; <double> [#uses=1]
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store double %X, double* @D
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ret void
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}
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define i1 @accessor() {
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%V = load i1* @CTORGV ; <i1> [#uses=1]
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ret i1 %V
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}
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%struct.A = type { i32 }
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%struct.B = type { i32 (...)**, i8*, [4 x i8] }
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@GV1 = global %struct.B zeroinitializer, align 8
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@GV2 = constant [3 x i8*] [i8* inttoptr (i64 16 to i8*), i8* null, i8* bitcast ({ i8*, i8*, i32, i32, i8*, i64 }* null to i8*)]
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; CHECK-NOT: CTOR9
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define internal void @CTOR9() {
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entry:
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%0 = bitcast %struct.B* @GV1 to i8*
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%1 = getelementptr inbounds i8* %0, i64 16
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%2 = bitcast i8* %1 to %struct.A*
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%3 = bitcast %struct.B* @GV1 to i8***
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store i8** getelementptr inbounds ([3 x i8*]* @GV2, i64 1, i64 0), i8*** %3
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ret void
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}
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