mirror of
https://github.com/RPCS3/llvm-mirror.git
synced 2024-11-23 19:23:23 +01:00
7a552e6e70
This patch reapplies r298620. The original patch was reverted because of two issues. First, the patch exposed a bug in InstCombine that caused the Chromium builds to fail (PR32414). This issue was fixed in r299017. Second, the patch introduced a bug in the vectorizer's scalars analysis that caused test suite builds to fail on SystemZ. The scalars analysis was too aggressive and marked a memory instruction scalar, even though it was going to be vectorized. This issue has been fixed in the current patch and several new test cases for the scalars analysis have been added. llvm-svn: 299770
144 lines
6.6 KiB
LLVM
144 lines
6.6 KiB
LLVM
; REQUIRES: asserts
|
|
; RUN: opt < %s -loop-vectorize -force-vector-width=2 -force-vector-interleave=1 -instcombine -debug-only=loop-vectorize -disable-output -print-after=instcombine 2>&1 | FileCheck %s
|
|
|
|
target datalayout = "e-m:e-i64:64-i128:128-n32:64-S128"
|
|
|
|
; CHECK-LABEL: vector_gep
|
|
; CHECK-NOT: LV: Found scalar instruction: %tmp0 = getelementptr inbounds i32, i32* %b, i64 %i
|
|
; CHECK: vector.body:
|
|
; CHECK-NEXT: [[INDEX:%.*]] = phi i64 [ 0, %vector.ph ], [ [[INDEX_NEXT:%.*]], %vector.body ]
|
|
; CHECK-NEXT: [[VEC_IND:%.*]] = phi <2 x i64> [ <i64 0, i64 1>, %vector.ph ], [ [[VEC_IND_NEXT:%.*]], %vector.body ]
|
|
; CHECK-NEXT: [[TMP1:%.*]] = getelementptr inbounds i32, i32* %b, <2 x i64> [[VEC_IND]]
|
|
; CHECK-NEXT: [[TMP2:%.*]] = getelementptr inbounds i32*, i32** %a, i64 [[INDEX]]
|
|
; CHECK-NEXT: [[TMP3:%.*]] = bitcast i32** [[TMP2]] to <2 x i32*>*
|
|
; CHECK-NEXT: store <2 x i32*> [[TMP1]], <2 x i32*>* [[TMP3]], align 8
|
|
; CHECK-NEXT: [[INDEX_NEXT]] = add i64 [[INDEX]], 2
|
|
; CHECK-NEXT: [[VEC_IND_NEXT]] = add <2 x i64> [[VEC_IND]], <i64 2, i64 2>
|
|
; CHECK: br i1 {{.*}}, label %middle.block, label %vector.body
|
|
;
|
|
define void @vector_gep(i32** %a, i32 *%b, i64 %n) {
|
|
entry:
|
|
br label %for.body
|
|
|
|
for.body:
|
|
%i = phi i64 [ %i.next, %for.body ], [ 0, %entry ]
|
|
%tmp0 = getelementptr inbounds i32, i32* %b, i64 %i
|
|
%tmp1 = getelementptr inbounds i32*, i32** %a, i64 %i
|
|
store i32* %tmp0, i32** %tmp1, align 8
|
|
%i.next = add nuw nsw i64 %i, 1
|
|
%cond = icmp slt i64 %i.next, %n
|
|
br i1 %cond, label %for.body, label %for.end
|
|
|
|
for.end:
|
|
ret void
|
|
}
|
|
|
|
; CHECK-LABEL: scalar_store
|
|
; CHECK: LV: Found scalar instruction: %tmp1 = getelementptr inbounds i32*, i32** %a, i64 %i
|
|
; CHECK-NEXT: LV: Found scalar instruction: %tmp0 = getelementptr inbounds i32, i32* %b, i64 %i
|
|
; CHECK-NEXT: LV: Found scalar instruction: %i = phi i64 [ %i.next, %for.body ], [ 0, %entry ]
|
|
; CHECK-NEXT: LV: Found scalar instruction: %i.next = add nuw nsw i64 %i, 2
|
|
; CHECK: vector.body:
|
|
; CHECK-NEXT: [[INDEX:%.*]] = phi i64 [ 0, %vector.ph ], [ [[INDEX_NEXT:%.*]], %vector.body ]
|
|
; CHECK-NEXT: [[OFFSET_IDX:%.*]] = shl i64 [[INDEX]], 1
|
|
; CHECK-NEXT: [[TMP4:%.*]] = or i64 [[OFFSET_IDX]], 2
|
|
; CHECK-NEXT: [[TMP5:%.*]] = getelementptr inbounds i32, i32* %b, i64 [[OFFSET_IDX]]
|
|
; CHECK-NEXT: [[TMP6:%.*]] = getelementptr inbounds i32, i32* %b, i64 [[TMP4]]
|
|
; CHECK-NEXT: [[TMP7:%.*]] = getelementptr inbounds i32*, i32** %a, i64 [[OFFSET_IDX]]
|
|
; CHECK-NEXT: [[TMP8:%.*]] = getelementptr inbounds i32*, i32** %a, i64 [[TMP4]]
|
|
; CHECK-NEXT: store i32* [[TMP5]], i32** [[TMP7]], align 8
|
|
; CHECK-NEXT: store i32* [[TMP6]], i32** [[TMP8]], align 8
|
|
; CHECK-NEXT: [[INDEX_NEXT]] = add i64 [[INDEX]], 2
|
|
; CHECK: br i1 {{.*}}, label %middle.block, label %vector.body
|
|
;
|
|
define void @scalar_store(i32** %a, i32 *%b, i64 %n) {
|
|
entry:
|
|
br label %for.body
|
|
|
|
for.body:
|
|
%i = phi i64 [ %i.next, %for.body ], [ 0, %entry ]
|
|
%tmp0 = getelementptr inbounds i32, i32* %b, i64 %i
|
|
%tmp1 = getelementptr inbounds i32*, i32** %a, i64 %i
|
|
store i32* %tmp0, i32** %tmp1, align 8
|
|
%i.next = add nuw nsw i64 %i, 2
|
|
%cond = icmp slt i64 %i.next, %n
|
|
br i1 %cond, label %for.body, label %for.end
|
|
|
|
for.end:
|
|
ret void
|
|
}
|
|
|
|
; CHECK-LABEL: expansion
|
|
; CHECK: LV: Found scalar instruction: %tmp3 = getelementptr inbounds i32*, i32** %tmp2, i64 %i
|
|
; CHECK-NEXT: LV: Found scalar instruction: %tmp1 = bitcast i64* %tmp0 to i32*
|
|
; CHECK-NEXT: LV: Found scalar instruction: %tmp2 = getelementptr inbounds i32*, i32** %a, i64 0
|
|
; CHECK-NEXT: LV: Found scalar instruction: %tmp0 = getelementptr inbounds i64, i64* %b, i64 %i
|
|
; CHECK-NEXT: LV: Found scalar instruction: %i = phi i64 [ %i.next, %for.body ], [ 0, %entry ]
|
|
; CHECK-NEXT: LV: Found scalar instruction: %i.next = add nuw nsw i64 %i, 2
|
|
; CHECK: vector.body:
|
|
; CHECK-NEXT: [[INDEX:%.*]] = phi i64 [ 0, %vector.ph ], [ [[INDEX_NEXT:%.*]], %vector.body ]
|
|
; CHECK-NEXT: [[OFFSET_IDX:%.*]] = shl i64 [[INDEX]], 1
|
|
; CHECK-NEXT: [[TMP4:%.*]] = or i64 [[OFFSET_IDX]], 2
|
|
; CHECK-NEXT: [[TMP5:%.*]] = getelementptr inbounds i64, i64* %b, i64 [[OFFSET_IDX]]
|
|
; CHECK-NEXT: [[TMP6:%.*]] = getelementptr inbounds i64, i64* %b, i64 [[TMP4]]
|
|
; CHECK-NEXT: [[TMP7:%.*]] = getelementptr inbounds i32*, i32** %a, i64 [[OFFSET_IDX]]
|
|
; CHECK-NEXT: [[TMP8:%.*]] = getelementptr inbounds i32*, i32** %a, i64 [[TMP4]]
|
|
; CHECK-NEXT: [[TMP9:%.*]] = bitcast i32** [[TMP7]] to i64**
|
|
; CHECK-NEXT: store i64* [[TMP5]], i64** [[TMP9]], align 8
|
|
; CHECK-NEXT: [[TMP10:%.*]] = bitcast i32** [[TMP8]] to i64**
|
|
; CHECK-NEXT: store i64* [[TMP6]], i64** [[TMP10]], align 8
|
|
; CHECK-NEXT: [[INDEX_NEXT]] = add i64 [[INDEX]], 2
|
|
; CHECK: br i1 {{.*}}, label %middle.block, label %vector.body
|
|
;
|
|
define void @expansion(i32** %a, i64 *%b, i64 %n) {
|
|
entry:
|
|
br label %for.body
|
|
|
|
for.body:
|
|
%i = phi i64 [ %i.next, %for.body ], [ 0, %entry ]
|
|
%tmp0 = getelementptr inbounds i64, i64* %b, i64 %i
|
|
%tmp1 = bitcast i64* %tmp0 to i32*
|
|
%tmp2 = getelementptr inbounds i32*, i32** %a, i64 0
|
|
%tmp3 = getelementptr inbounds i32*, i32** %tmp2, i64 %i
|
|
store i32* %tmp1, i32** %tmp3, align 8
|
|
%i.next = add nuw nsw i64 %i, 2
|
|
%cond = icmp slt i64 %i.next, %n
|
|
br i1 %cond, label %for.body, label %for.end
|
|
|
|
for.end:
|
|
ret void
|
|
}
|
|
|
|
; CHECK-LABEL: no_gep_or_bitcast
|
|
; CHECK-NOT: LV: Found scalar instruction: %tmp1 = load i32*, i32** %tmp0, align 8
|
|
; CHECK: LV: Found scalar instruction: %i = phi i64 [ %i.next, %for.body ], [ 0, %entry ]
|
|
; CHECK-NEXT: LV: Found scalar instruction: %i.next = add nuw nsw i64 %i, 1
|
|
; CHECK: vector.body:
|
|
; CHECK-NEXT: [[INDEX:%.*]] = phi i64 [ 0, %vector.ph ], [ [[INDEX_NEXT:%.*]], %vector.body ]
|
|
; CHECK-NEXT: [[TMP1:%.*]] = getelementptr inbounds i32*, i32** %a, i64 [[INDEX]]
|
|
; CHECK-NEXT: [[TMP2:%.*]] = bitcast i32** [[TMP1]] to <2 x i32*>*
|
|
; CHECK-NEXT: [[WIDE_LOAD:%.*]] = load <2 x i32*>, <2 x i32*>* [[TMP2]], align 8
|
|
; CHECK-NEXT: [[TMP3:%.*]] = extractelement <2 x i32*> [[WIDE_LOAD]], i32 0
|
|
; CHECK-NEXT: store i32 0, i32* [[TMP3]], align 8
|
|
; CHECK-NEXT: [[TMP4:%.*]] = extractelement <2 x i32*> [[WIDE_LOAD]], i32 1
|
|
; CHECK-NEXT: store i32 0, i32* [[TMP4]], align 8
|
|
; CHECK-NEXT: [[INDEX_NEXT]] = add i64 [[INDEX]], 2
|
|
; CHECK: br i1 {{.*}}, label %middle.block, label %vector.body
|
|
;
|
|
define void @no_gep_or_bitcast(i32** noalias %a, i64 %n) {
|
|
entry:
|
|
br label %for.body
|
|
|
|
for.body:
|
|
%i = phi i64 [ %i.next, %for.body ], [ 0, %entry ]
|
|
%tmp0 = getelementptr inbounds i32*, i32** %a, i64 %i
|
|
%tmp1 = load i32*, i32** %tmp0, align 8
|
|
store i32 0, i32* %tmp1, align 8
|
|
%i.next = add nuw nsw i64 %i, 1
|
|
%cond = icmp slt i64 %i.next, %n
|
|
br i1 %cond, label %for.body, label %for.end
|
|
|
|
for.end:
|
|
ret void
|
|
}
|