forked from OSchip/llvm-project
44 lines
1.2 KiB
LLVM
44 lines
1.2 KiB
LLVM
; RUN: opt -passes='lto<O3>' -S %s | FileCheck %s
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target triple = "arm64e-apple-darwin"
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@A = external unnamed_addr global i8**, align 8
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@B = external unnamed_addr global i8**, align 8
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@C = internal unnamed_addr global i32 0, align 4
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@D = external unnamed_addr global i32, align 4
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; CHECK-LABEL: @fn
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; CHECK: vector.body:
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;
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define void @fn() {
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entry:
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%v.D = load i32, i32* @D, align 4
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store i32 %v.D, i32* @C, align 4
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call void @clobber()
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%v.B = load i8**, i8*** @B, align 8
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%v.A = load i8**, i8*** @A, align 8
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%gep.1 = getelementptr inbounds i8*, i8** %v.A, i64 0
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%v.gep.1 = load i8*, i8** %gep.1, align 8
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%gep.2 = getelementptr inbounds i8*, i8** %v.B, i64 0
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%v.gep.2 = load i8*, i8** %gep.2, align 8
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%cmp = icmp eq i8* %v.gep.2, null
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br i1 %cmp, label %exit, label %loop
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loop:
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%iv = phi i32 [ 0, %entry ], [ %iv.next, %loop ]
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%gep.3 = getelementptr inbounds i8, i8* %v.gep.2, i32 %iv
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%v.gep.3 = load i8, i8* %gep.3, align 1
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%gep.4 = getelementptr inbounds i8, i8* %v.gep.1, i32 %iv
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store i8 %v.gep.3, i8* %gep.4, align 1
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%iv.next = add nuw nsw i32 %iv, 1
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%v.C = load i32, i32* @C, align 4
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%exit.cond = icmp sgt i32 %iv, %v.C
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br i1 %exit.cond, label %exit, label %loop
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exit:
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ret void
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}
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declare void @clobber()
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