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; RUN: opt -passes=loop-vectorize -force-vector-width=4 -S %s | FileCheck %s
@dst = external global [32 x i16], align 1
define void @blend_uniform_iv_trunc(i1 %c) {
; CHECK-LABEL: @blend_uniform_iv_trunc(
; CHECK: vector.body:
; CHECK-NEXT: [[INDEX:%.*]] = phi i64 [ 0, %vector.ph ], [ [[INDEX_NEXT:%.*]], %vector.body ]
; CHECK-NEXT: [[TMP1:%.*]] = trunc i64 [[INDEX]] to i16
; CHECK-NEXT: [[TMP2:%.*]] = add i16 [[TMP1]], 0
; CHECK-NEXT: [[PREDPHI:%.*]] = select i1 %c, i16 [[TMP2]], i16 undef
; CHECK-NEXT: [[TMP5:%.*]] = getelementptr inbounds [32 x i16], ptr @dst, i16 0, i16 [[PREDPHI]]
; CHECK-NEXT: [[TMP6:%.*]] = getelementptr inbounds i16, ptr [[TMP5]], i32 0
; CHECK-NEXT: store <4 x i16> zeroinitializer, ptr [[TMP6]], align 2
; CHECK-NEXT: [[INDEX_NEXT]] = add nuw i64 [[INDEX]], 4
; CHECK-NEXT: [[TMP8:%.*]] = icmp eq i64 [[INDEX_NEXT]], 32
; CHECK-NEXT: br i1 [[TMP8]], label %middle.block, label %vector.body
;
entry:
br label %loop.header
loop.header: ; preds = %loop.latch, %entry
%iv = phi i64 [ 0, %entry ], [ %iv.next, %loop.latch ]
%iv.trunc.2 = trunc i64 %iv to i16
br i1 %c, label %loop.next, label %loop.latch
loop.next: ; preds = %loop.header
br label %loop.latch
loop.latch: ; preds = %loop.next, %loop.header
%blend = phi i16 [ undef, %loop.header ], [ %iv.trunc.2, %loop.next ]
%dst.ptr = getelementptr inbounds [32 x i16], ptr @dst, i16 0, i16 %blend
store i16 0, ptr %dst.ptr
%iv.next = add nuw nsw i64 %iv, 1
%cmp439 = icmp ult i64 %iv, 31
br i1 %cmp439, label %loop.header, label %exit
exit: ; preds = %loop.latch
ret void
}
define void @blend_uniform_iv(i1 %c) {
; CHECK-LABEL: @blend_uniform_iv(
; CHECK: vector.ph:
; CHECK: vector.body:
; CHECK-NEXT: [[INDEX:%.*]] = phi i64 [ 0, %vector.ph ], [ [[INDEX_NEXT:%.*]], %vector.body ]
; CHECK-NEXT: [[TMP0:%.*]] = add i64 [[INDEX]], 0
; CHECK-NEXT: [[PREDPHI:%.*]] = select i1 %c, i64 [[TMP0]], i64 undef
; CHECK-NEXT: [[TMP3:%.*]] = getelementptr inbounds [32 x i16], ptr @dst, i16 0, i64 [[PREDPHI]]
; CHECK-NEXT: [[TMP4:%.*]] = getelementptr inbounds i16, ptr [[TMP3]], i32 0
; CHECK-NEXT: store <4 x i16> zeroinitializer, ptr [[TMP4]], align 2
; CHECK-NEXT: [[INDEX_NEXT]] = add nuw i64 [[INDEX]], 4
; CHECK-NEXT: [[TMP6:%.*]] = icmp eq i64 [[INDEX_NEXT]], 32
; CHECK-NEXT: br i1 [[TMP6]], label %middle.block, label %vector.body
;
entry:
br label %loop.header
loop.header: ; preds = %loop.latch, %entry
%iv = phi i64 [ 0, %entry ], [ %iv.next, %loop.latch ]
br i1 %c, label %loop.next, label %loop.latch
loop.next: ; preds = %loop.header
br label %loop.latch
loop.latch: ; preds = %loop.next, %loop.header
%blend = phi i64 [ undef, %loop.header ], [ %iv, %loop.next ]
%dst.ptr = getelementptr inbounds [32 x i16], ptr @dst, i16 0, i64 %blend
store i16 0, ptr %dst.ptr
%iv.next = add nuw nsw i64 %iv, 1
%cmp439 = icmp ult i64 %iv, 31
br i1 %cmp439, label %loop.header, label %exit
exit: ; preds = %loop.latch
ret void
}
define void @blend_chain_iv(i1 %c) {
; CHECK-LABEL: @blend_chain_iv(
; CHECK: vector.ph:
; CHECK-NEXT: [[MASK0:%.*]] = insertelement <4 x i1> poison, i1 %c, i64 0
; CHECK-NEXT: [[MASK1:%.*]] = shufflevector <4 x i1> [[MASK0]], <4 x i1> poison, <4 x i32> zeroinitializer
; CHECK: vector.body:
; CHECK-NEXT: [[INDEX:%.*]] = phi i64 [ 0, %vector.ph ], [ [[INDEX_NEXT:%.*]], %vector.body ]
; CHECK-NEXT: [[VEC_IND:%.*]] = phi <4 x i64> [ <i64 0, i64 1, i64 2, i64 3>, %vector.ph ], [ [[VEC_IND_NEXT:%.*]], %vector.body ]
; CHECK-NEXT: [[TMP6:%.*]] = select <4 x i1> [[MASK1]], <4 x i1> [[MASK1]], <4 x i1> zeroinitializer
; CHECK-NEXT: [[PREDPHI:%.*]] = select <4 x i1> [[TMP6]], <4 x i64> [[VEC_IND]], <4 x i64> undef
; CHECK-NEXT: [[PREDPHI1:%.*]] = select <4 x i1> [[MASK1]], <4 x i64> [[PREDPHI]], <4 x i64> undef
; CHECK-NEXT: [[TMP9:%.*]] = extractelement <4 x i64> [[PREDPHI1]], i32 0
; CHECK-NEXT: [[TMP10:%.*]] = getelementptr inbounds [32 x i16], ptr @dst, i16 0, i64 [[TMP9]]
; CHECK-NEXT: [[TMP11:%.*]] = extractelement <4 x i64> [[PREDPHI1]], i32 1
; CHECK-NEXT: [[TMP12:%.*]] = getelementptr inbounds [32 x i16], ptr @dst, i16 0, i64 [[TMP11]]
; CHECK-NEXT: [[TMP13:%.*]] = extractelement <4 x i64> [[PREDPHI1]], i32 2
; CHECK-NEXT: [[TMP14:%.*]] = getelementptr inbounds [32 x i16], ptr @dst, i16 0, i64 [[TMP13]]
; CHECK-NEXT: [[TMP15:%.*]] = extractelement <4 x i64> [[PREDPHI1]], i32 3
; CHECK-NEXT: [[TMP16:%.*]] = getelementptr inbounds [32 x i16], ptr @dst, i16 0, i64 [[TMP15]]
; CHECK-NEXT: store i16 0, ptr [[TMP10]], align 2
; CHECK-NEXT: store i16 0, ptr [[TMP12]], align 2
; CHECK-NEXT: store i16 0, ptr [[TMP14]], align 2
; CHECK-NEXT: store i16 0, ptr [[TMP16]], align 2
; CHECK-NEXT: [[INDEX_NEXT]] = add nuw i64 [[INDEX]], 4
; CHECK-NEXT: [[VEC_IND_NEXT]] = add <4 x i64> [[VEC_IND]], <i64 4, i64 4, i64 4, i64 4>
; CHECK-NEXT: [[TMP17:%.*]] = icmp eq i64 [[INDEX_NEXT]], 32
; CHECK-NEXT: br i1 [[TMP17]], label %middle.block, label %vector.body
;
entry:
br label %loop.header
loop.header: ; preds = %loop.latch, %entry
%iv = phi i64 [ 0, %entry ], [ %iv.next, %loop.latch ]
br i1 %c, label %loop.next, label %loop.latch
loop.next: ; preds = %loop.header
br i1 %c, label %loop.next.2, label %loop.next.3
loop.next.2:
br label %loop.next.3
loop.next.3:
%blend.1 = phi i64 [ undef, %loop.next ], [ %iv, %loop.next.2 ]
br label %loop.latch
loop.latch: ; preds = %loop.next, %loop.header
%blend = phi i64 [ undef, %loop.header ], [ %blend.1, %loop.next.3 ]
%dst.ptr = getelementptr inbounds [32 x i16], ptr @dst, i16 0, i64 %blend
store i16 0, ptr %dst.ptr
%iv.next = add nuw nsw i64 %iv, 1
%cmp439 = icmp ult i64 %iv, 31
br i1 %cmp439, label %loop.header, label %exit
exit: ; preds = %loop.latch
ret void
}
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