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https://github.com/capstone-engine/llvm-capstone.git
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764b7e66f0
Since the base pointer of a possibly aliasing pointer might not alias with any other pointer it (the base pointer) might not be tagged as "required invariant". However, we need it do be in order to compare the accessed addresses of the derived (possibly aliasing) pointer. This patch also tries to clean up the load hoisting a little bit. llvm-svn: 270412
49 lines
2.3 KiB
LLVM
49 lines
2.3 KiB
LLVM
; RUN: opt %loadPolly -tbaa -polly-codegen -disable-output %s
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;
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target datalayout = "e-m:e-i64:64-f80:128-n8:16:32:64-S128"
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%struct.1 = type { %struct.2*, %struct.2*, %struct.3*, i32, i32, i32, i32, i32, i32, i32, i32, i32, i8*, i8*, i8*, i8*, i8*, i32, [38 x i8], [128 x i8], [38 x i32], [256 x i8], [256 x i8], [256 x i8], %struct.4, [25 x [16 x %struct.4]], [128 x [64 x i16]] }
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%struct.2 = type { i16, i16, i32, i32 }
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%struct.3 = type { i8, i8, i16, i16 }
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%struct.4 = type { i16, i8, i8 }
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define void @AllocUnitsRare(%struct.1* %p, i32 %indx) {
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entry:
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br label %do.body
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do.body: ; preds = %do.body, %entry
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%i.0 = phi i32 [ %inc, %do.body ], [ %indx, %entry ]
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%inc = add i32 %i.0, 1
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br i1 undef, label %do.body, label %do.end
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do.end: ; preds = %do.body
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%Base.i = getelementptr inbounds %struct.1, %struct.1* %p, i32 0, i32 12
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%tmp.i = load i8*, i8** %Base.i, align 8, !tbaa !0
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%idxprom.i = zext i32 %inc to i64
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%FreeList.i = getelementptr inbounds %struct.1, %struct.1* %p, i32 0, i32 20
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%arrayidx.i = getelementptr inbounds [38 x i32], [38 x i32]* %FreeList.i, i64 0, i64 %idxprom.i
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%tmp1.i = bitcast i8* %tmp.i to i32*
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%tmp2.i = load i32, i32* %tmp1.i, align 4, !tbaa !8
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store i32 %tmp2.i, i32* %arrayidx.i, align 4, !tbaa !8
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%Indx2Units.i = getelementptr inbounds %struct.1, %struct.1* %p, i32 0, i32 18
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%arrayidx.i1 = getelementptr inbounds [38 x i8], [38 x i8]* %Indx2Units.i, i64 0, i64 0
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%cmp.i = icmp ne i32 0, 3
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br i1 %cmp.i, label %if.then.i, label %SplitBlock.exit
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if.then.i: ; preds = %do.end
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br label %SplitBlock.exit
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SplitBlock.exit: ; preds = %if.then.i, %do.end
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ret void
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}
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!0 = !{!1, !2, i64 64}
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!1 = !{!"", !2, i64 0, !2, i64 8, !2, i64 16, !5, i64 24, !5, i64 28, !5, i64 32, !5, i64 36, !5, i64 40, !5, i64 44, !5, i64 48, !5, i64 52, !5, i64 56, !2, i64 64, !2, i64 72, !2, i64 80, !2, i64 88, !2, i64 96, !5, i64 104, !3, i64 108, !3, i64 146, !3, i64 276, !3, i64 428, !3, i64 684, !3, i64 940, !6, i64 1196, !3, i64 1200, !3, i64 2800}
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!2 = !{!"any pointer", !3, i64 0}
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!3 = !{!"omnipotent char", !4, i64 0}
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!4 = !{!"Simple C/C++ TBAA"}
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!5 = !{!"int", !3, i64 0}
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!6 = !{!"", !7, i64 0, !3, i64 2, !3, i64 3}
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!7 = !{!"short", !3, i64 0}
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!8 = !{!5, !5, i64 0}
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