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; RUN: opt -S -mtriple=s390x-unknown-linux -mcpu=z13 -loop-vectorize -dce \
; RUN: -instcombine -force-vector-width=2 < %s | FileCheck %s
;
; Test that loop vectorizer does not generate vector addresses that must then
; always be extracted.
; Check that the addresses for a scalarized memory access is not extracted
; from a vector register.
define i32 @foo(i32* nocapture %A) {
;CHECK-LABEL: @foo(
;CHECK: %index = phi i64 [ 0, %vector.ph ], [ %index.next, %vector.body ]
;CHECK: %0 = shl nsw i64 %index, 2
;CHECK: %1 = shl i64 %index, 2
;CHECK: %2 = or i64 %1, 4
;CHECK: %3 = getelementptr inbounds i32, i32* %A, i64 %0
;CHECK: %4 = getelementptr inbounds i32, i32* %A, i64 %2
;CHECK: store i32 4, i32* %3, align 4
;CHECK: store i32 4, i32* %4, align 4
entry:
br label %for.body
for.body:
%indvars.iv = phi i64 [ 0, %entry ], [ %indvars.iv.next, %for.body ]
%0 = shl nsw i64 %indvars.iv, 2
%arrayidx = getelementptr inbounds i32, i32* %A, i64 %0
store i32 4, i32* %arrayidx, align 4
%indvars.iv.next = add i64 %indvars.iv, 1
%lftr.wideiv = trunc i64 %indvars.iv.next to i32
%exitcond = icmp eq i32 %lftr.wideiv, 10000
br i1 %exitcond, label %for.end, label %for.body
for.end:
ret i32 undef
}
; Check that a load of address is scalarized.
define i32 @foo1(i32* nocapture noalias %A, i32** nocapture %PtrPtr) {
;CHECK-LABEL: @foo1(
;CHECK: %index = phi i64 [ 0, %vector.ph ], [ %index.next, %vector.body ]
;CHECK: %0 = or i64 %index, 1
;CHECK: %1 = getelementptr inbounds i32*, i32** %PtrPtr, i64 %index
;CHECK: %2 = getelementptr inbounds i32*, i32** %PtrPtr, i64 %0
;CHECK: %3 = load i32*, i32** %1, align 8
;CHECK: %4 = load i32*, i32** %2, align 8
;CHECK: %5 = load i32, i32* %3, align 4
;CHECK: %6 = load i32, i32* %4, align 4
;CHECK: %7 = insertelement <2 x i32> undef, i32 %5, i32 0
;CHECK: %8 = insertelement <2 x i32> %7, i32 %6, i32 1
;CHECK: %9 = getelementptr inbounds i32, i32* %A, i64 %index
;CHECK: %10 = bitcast i32* %9 to <2 x i32>*
;CHECK: store <2 x i32> %8, <2 x i32>* %10, align 4
entry:
br label %for.body
for.body:
%indvars.iv = phi i64 [ 0, %entry ], [ %indvars.iv.next, %for.body ]
%ptr = getelementptr inbounds i32*, i32** %PtrPtr, i64 %indvars.iv
%el = load i32*, i32** %ptr
%v = load i32, i32* %el
%arrayidx = getelementptr inbounds i32, i32* %A, i64 %indvars.iv
store i32 %v, i32* %arrayidx, align 4
%indvars.iv.next = add i64 %indvars.iv, 1
%lftr.wideiv = trunc i64 %indvars.iv.next to i32
%exitcond = icmp eq i32 %lftr.wideiv, 10000
br i1 %exitcond, label %for.end, label %for.body
for.end:
ret i32 undef
}
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