eae26b6640
Instcombine prefers this canonical form (see getPreferredVectorIndex), as does IRBuilder when passing the index as an integer so we may as well use the prefered form from creation. NOTE: All test changes are mechanical with nothing else expected beyond a change of index type from i32 to i64. Differential Revision: https://reviews.llvm.org/D140983
83 lines
3.7 KiB
LLVM
83 lines
3.7 KiB
LLVM
; extern int arr[8][8];
|
|
; extern int arr2[8];
|
|
;
|
|
; void foo(int n)
|
|
; {
|
|
; int i1, i2;
|
|
;
|
|
; #pragma clang loop vectorize(enable) vectorize_width(4)
|
|
; for (i1 = 0; i1 < 8; i1++) {
|
|
; arr2[i1] = i1;
|
|
; for (i2 = 0; i2 < 8; i2++)
|
|
; arr[i2][i1] = i1 + n;
|
|
; }
|
|
; }
|
|
;
|
|
; RUN: opt -S -passes=loop-vectorize -enable-vplan-native-path < %s | FileCheck %s
|
|
; CHECK-LABEL: vector.ph:
|
|
; CHECK: %[[SplatVal:.*]] = insertelement <4 x i32> poison, i32 %n, i64 0
|
|
; CHECK: %[[Splat:.*]] = shufflevector <4 x i32> %[[SplatVal]], <4 x i32> poison, <4 x i32> zeroinitializer
|
|
|
|
; CHECK-LABEL: vector.body:
|
|
; CHECK: %[[Ind:.*]] = phi i64 [ 0, %vector.ph ], [ %[[IndNext:.*]], %[[ForInc:.*]] ]
|
|
; CHECK: %[[VecInd:.*]] = phi <4 x i64> [ <i64 0, i64 1, i64 2, i64 3>, %vector.ph ], [ %[[VecIndNext:.*]], %[[ForInc]] ]
|
|
; CHECK: %[[AAddr:.*]] = getelementptr inbounds [8 x i32], ptr @arr2, i64 0, <4 x i64> %[[VecInd]]
|
|
; CHECK: %[[VecIndTr:.*]] = trunc <4 x i64> %[[VecInd]] to <4 x i32>
|
|
; CHECK: call void @llvm.masked.scatter.v4i32.v4p0(<4 x i32> %[[VecIndTr]], <4 x ptr> %[[AAddr]], i32 4, <4 x i1> <i1 true, i1 true, i1 true, i1 true>)
|
|
; CHECK: %[[VecIndTr2:.*]] = trunc <4 x i64> %[[VecInd]] to <4 x i32>
|
|
; CHECK: %[[StoreVal:.*]] = add nsw <4 x i32> %[[VecIndTr2]], %[[Splat]]
|
|
; CHECK: br label %[[InnerLoop:.+]]
|
|
|
|
; CHECK: [[InnerLoop]]:
|
|
; CHECK: %[[InnerPhi:.*]] = phi <4 x i64> [ zeroinitializer, %vector.body ], [ %[[InnerPhiNext:.*]], %[[InnerLoop]] ]
|
|
; CHECK: %[[AAddr2:.*]] = getelementptr inbounds [8 x [8 x i32]], ptr @arr, i64 0, <4 x i64> %[[InnerPhi]], <4 x i64> %[[VecInd]]
|
|
; CHECK: call void @llvm.masked.scatter.v4i32.v4p0(<4 x i32> %[[StoreVal]], <4 x ptr> %[[AAddr2]], i32 4, <4 x i1> <i1 true, i1 true, i1 true
|
|
; CHECK: %[[InnerPhiNext]] = add nuw nsw <4 x i64> %[[InnerPhi]], <i64 1, i64 1, i64 1, i64 1>
|
|
; CHECK: %[[VecCond:.*]] = icmp eq <4 x i64> %[[InnerPhiNext]], <i64 8, i64 8, i64 8, i64 8>
|
|
; CHECK: %[[InnerCond:.*]] = extractelement <4 x i1> %[[VecCond]], i32 0
|
|
; CHECK: br i1 %[[InnerCond]], label %[[ForInc]], label %[[InnerLoop]]
|
|
|
|
; CHECK: [[ForInc]]:
|
|
; CHECK: %[[IndNext]] = add nuw i64 %[[Ind]], 4
|
|
; CHECK: %[[VecIndNext]] = add <4 x i64> %[[VecInd]], <i64 4, i64 4, i64 4, i64 4>
|
|
; CHECK: %[[Cmp:.*]] = icmp eq i64 %[[IndNext]], 8
|
|
; CHECK: br i1 %[[Cmp]], label %middle.block, label %vector.body
|
|
|
|
@arr2 = external global [8 x i32], align 16
|
|
@arr = external global [8 x [8 x i32]], align 16
|
|
|
|
; Function Attrs: norecurse nounwind uwtable
|
|
define void @foo(i32 %n) {
|
|
entry:
|
|
br label %for.body
|
|
|
|
for.body: ; preds = %for.inc8, %entry
|
|
%indvars.iv21 = phi i64 [ 0, %entry ], [ %indvars.iv.next22, %for.inc8 ]
|
|
%arrayidx = getelementptr inbounds [8 x i32], ptr @arr2, i64 0, i64 %indvars.iv21
|
|
%0 = trunc i64 %indvars.iv21 to i32
|
|
store i32 %0, ptr %arrayidx, align 4
|
|
%1 = trunc i64 %indvars.iv21 to i32
|
|
%add = add nsw i32 %1, %n
|
|
br label %for.body3
|
|
|
|
for.body3: ; preds = %for.body3, %for.body
|
|
%indvars.iv = phi i64 [ 0, %for.body ], [ %indvars.iv.next, %for.body3 ]
|
|
%arrayidx7 = getelementptr inbounds [8 x [8 x i32]], ptr @arr, i64 0, i64 %indvars.iv, i64 %indvars.iv21
|
|
store i32 %add, ptr %arrayidx7, align 4
|
|
%indvars.iv.next = add nuw nsw i64 %indvars.iv, 1
|
|
%exitcond = icmp eq i64 %indvars.iv.next, 8
|
|
br i1 %exitcond, label %for.inc8, label %for.body3
|
|
|
|
for.inc8: ; preds = %for.body3
|
|
%indvars.iv.next22 = add nuw nsw i64 %indvars.iv21, 1
|
|
%exitcond23 = icmp eq i64 %indvars.iv.next22, 8
|
|
br i1 %exitcond23, label %for.end10, label %for.body, !llvm.loop !1
|
|
|
|
for.end10: ; preds = %for.inc8
|
|
ret void
|
|
}
|
|
|
|
!1 = distinct !{!1, !2, !3}
|
|
!2 = !{!"llvm.loop.vectorize.width", i32 4}
|
|
!3 = !{!"llvm.loop.vectorize.enable", i1 true}
|