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[PhaseOrdering] Add test for missing vectorization with NewPM.
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llvm/test/Transforms/PhaseOrdering/AArch64/globals-aa-required-for-vectorization.ll
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; RUN: opt -passes='lto<O3>' -S %s | FileCheck %s | ||
; RUN: opt -std-link-opts -enable-new-pm=false -S %s | FileCheck --check-prefix=LEGACY %s | ||
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target triple = "arm64e-apple-darwin" | ||
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@A = external unnamed_addr global i8**, align 8 | ||
@B = external unnamed_addr global i8**, align 8 | ||
@C = internal unnamed_addr global i32 0, align 4 | ||
@D = external unnamed_addr global i32, align 4 | ||
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; CHECK-LABEL: @fn | ||
; CHECK-NOT: vector.body: | ||
; | ||
; LEGACY-LABEL: @fn | ||
; LEGACY: vector.body: | ||
; | ||
define void @fn() { | ||
entry: | ||
%v.D = load i32, i32* @D, align 4 | ||
store i32 %v.D, i32* @C, align 4 | ||
call void @clobber() | ||
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%v.B = load i8**, i8*** @B, align 8 | ||
%v.A = load i8**, i8*** @A, align 8 | ||
%gep.1 = getelementptr inbounds i8*, i8** %v.A, i64 0 | ||
%v.gep.1 = load i8*, i8** %gep.1, align 8 | ||
%gep.2 = getelementptr inbounds i8*, i8** %v.B, i64 0 | ||
%v.gep.2 = load i8*, i8** %gep.2, align 8 | ||
%cmp = icmp eq i8* %v.gep.2, null | ||
br i1 %cmp, label %exit, label %loop | ||
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loop: | ||
%iv = phi i32 [ 0, %entry ], [ %iv.next, %loop ] | ||
%gep.3 = getelementptr inbounds i8, i8* %v.gep.2, i32 %iv | ||
%v.gep.3 = load i8, i8* %gep.3, align 1 | ||
%gep.4 = getelementptr inbounds i8, i8* %v.gep.1, i32 %iv | ||
store i8 %v.gep.3, i8* %gep.4, align 1 | ||
%iv.next = add nuw nsw i32 %iv, 1 | ||
%v.C = load i32, i32* @C, align 4 | ||
%exit.cond = icmp sgt i32 %iv, %v.C | ||
br i1 %exit.cond, label %exit, label %loop | ||
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exit: | ||
ret void | ||
} | ||
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declare void @clobber() |