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clang-p2996/llvm/test/Transforms/SLPVectorizer/X86/PR31847.ll
Alexey Bataev 8b1eeafb91 [SLP] Fix for PR31847: Assertion failed: (isLoopInvariant(Operands[i], L) && "SCEVAddRecExpr operand is not loop-invariant!") 
Initially SLP vectorizer replaced all going-to-be-vectorized
instructions with Undef values. It may break ScalarEvaluation and may
cause a crash.
Reworked SLP vectorizer so that it does not replace vectorized
instructions by UndefValue anymore. Instead vectorized instructions are
marked for deletion inside if BoUpSLP class and deleted upon class
destruction.

Reviewers: mzolotukhin, mkuper, hfinkel, RKSimon, davide, spatel

Subscribers: RKSimon, Gerolf, anemet, hans, majnemer, llvm-commits, sanjoy

Differential Revision: https://reviews.llvm.org/D29641

llvm-svn: 373166
2019-09-29 14:18:06 +00:00

154 lines
8.4 KiB
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; NOTE: Assertions have been autogenerated by utils/update_test_checks.py
; RUN: opt -slp-vectorizer -S -o - -mtriple=i386 -mcpu=haswell < %s | FileCheck %s
target datalayout = "e-m:e-p:32:32-f64:32:64-f80:32-n8:16:32-S128"
@shift = common local_unnamed_addr global [10 x i32] zeroinitializer, align 4
@data = common local_unnamed_addr global [10 x i8*] zeroinitializer, align 4
define void @flat(i32 %intensity) {
; CHECK-LABEL: @flat(
; CHECK-NEXT: entry:
; CHECK-NEXT: [[TMP0:%.*]] = load i32, i32* getelementptr inbounds ([10 x i32], [10 x i32]* @shift, i32 0, i32 0), align 4
; CHECK-NEXT: [[TMP1:%.*]] = load i32, i32* getelementptr inbounds ([10 x i32], [10 x i32]* @shift, i32 0, i32 1), align 4
; CHECK-NEXT: [[TMP2:%.*]] = load i8*, i8** getelementptr inbounds ([10 x i8*], [10 x i8*]* @data, i32 0, i32 0), align 4
; CHECK-NEXT: [[TMP3:%.*]] = load i8*, i8** getelementptr inbounds ([10 x i8*], [10 x i8*]* @data, i32 0, i32 1), align 4
; CHECK-NEXT: [[SHR:%.*]] = lshr i32 1, [[TMP0]]
; CHECK-NEXT: [[ARRAYIDX:%.*]] = getelementptr inbounds i8, i8* [[TMP2]], i32 [[SHR]]
; CHECK-NEXT: [[SHR1:%.*]] = lshr i32 1, [[TMP1]]
; CHECK-NEXT: [[ARRAYIDX2:%.*]] = getelementptr inbounds i8, i8* [[TMP3]], i32 [[SHR1]]
; CHECK-NEXT: br label [[FOR_BODY:%.*]]
; CHECK: for.cond.cleanup:
; CHECK-NEXT: ret void
; CHECK: for.body:
; CHECK-NEXT: [[D1_DATA_046:%.*]] = phi i8* [ [[TMP3]], [[ENTRY:%.*]] ], [ [[ADD_PTR23_1:%.*]], [[FOR_BODY]] ]
; CHECK-NEXT: [[Y_045:%.*]] = phi i32 [ 0, [[ENTRY]] ], [ [[INC_1:%.*]], [[FOR_BODY]] ]
; CHECK-NEXT: [[TMP4:%.*]] = load i8, i8* [[ARRAYIDX]], align 1
; CHECK-NEXT: [[CONV:%.*]] = zext i8 [[TMP4]] to i32
; CHECK-NEXT: [[SUB:%.*]] = add nsw i32 [[CONV]], -128
; CHECK-NEXT: [[TMP5:%.*]] = load i8, i8* [[ARRAYIDX2]], align 1
; CHECK-NEXT: [[CONV3:%.*]] = zext i8 [[TMP5]] to i32
; CHECK-NEXT: [[SUB4:%.*]] = add nsw i32 [[CONV3]], -128
; CHECK-NEXT: [[CMP5:%.*]] = icmp sgt i32 [[SUB]], -1
; CHECK-NEXT: [[SUB7:%.*]] = sub nsw i32 128, [[CONV]]
; CHECK-NEXT: [[COND:%.*]] = select i1 [[CMP5]], i32 [[SUB]], i32 [[SUB7]]
; CHECK-NEXT: [[CMP8:%.*]] = icmp sgt i32 [[SUB4]], -1
; CHECK-NEXT: [[SUB12:%.*]] = sub nsw i32 128, [[CONV3]]
; CHECK-NEXT: [[COND14:%.*]] = select i1 [[CMP8]], i32 [[SUB4]], i32 [[SUB12]]
; CHECK-NEXT: [[ADD:%.*]] = add nsw i32 [[COND14]], [[COND]]
; CHECK-NEXT: [[IDX_NEG:%.*]] = sub nsw i32 0, [[ADD]]
; CHECK-NEXT: [[ADD_PTR:%.*]] = getelementptr inbounds i8, i8* [[D1_DATA_046]], i32 [[IDX_NEG]]
; CHECK-NEXT: [[TMP6:%.*]] = load i8, i8* [[ADD_PTR]], align 1
; CHECK-NEXT: [[CONV15:%.*]] = zext i8 [[TMP6]] to i32
; CHECK-NEXT: [[ADD16:%.*]] = add nsw i32 [[CONV15]], [[INTENSITY:%.*]]
; CHECK-NEXT: [[CONV17:%.*]] = trunc i32 [[ADD16]] to i8
; CHECK-NEXT: store i8 [[CONV17]], i8* [[ADD_PTR]], align 1
; CHECK-NEXT: [[ADD_PTR18:%.*]] = getelementptr inbounds i8, i8* [[D1_DATA_046]], i32 [[ADD]]
; CHECK-NEXT: [[TMP7:%.*]] = load i8, i8* [[ADD_PTR18]], align 1
; CHECK-NEXT: [[NOT_TOBOOL:%.*]] = icmp eq i8 [[TMP7]], 0
; CHECK-NEXT: [[CONV21:%.*]] = zext i1 [[NOT_TOBOOL]] to i8
; CHECK-NEXT: store i8 [[CONV21]], i8* [[ADD_PTR18]], align 1
; CHECK-NEXT: [[ADD_PTR23:%.*]] = getelementptr inbounds i8, i8* [[D1_DATA_046]], i32 [[TMP1]]
; CHECK-NEXT: [[TMP8:%.*]] = load i8, i8* [[ARRAYIDX]], align 1
; CHECK-NEXT: [[CONV_1:%.*]] = zext i8 [[TMP8]] to i32
; CHECK-NEXT: [[SUB_1:%.*]] = add nsw i32 [[CONV_1]], -128
; CHECK-NEXT: [[TMP9:%.*]] = load i8, i8* [[ARRAYIDX2]], align 1
; CHECK-NEXT: [[CONV3_1:%.*]] = zext i8 [[TMP9]] to i32
; CHECK-NEXT: [[SUB4_1:%.*]] = add nsw i32 [[CONV3_1]], -128
; CHECK-NEXT: [[CMP5_1:%.*]] = icmp sgt i32 [[SUB_1]], -1
; CHECK-NEXT: [[SUB7_1:%.*]] = sub nsw i32 128, [[CONV_1]]
; CHECK-NEXT: [[COND_1:%.*]] = select i1 [[CMP5_1]], i32 [[SUB_1]], i32 [[SUB7_1]]
; CHECK-NEXT: [[CMP8_1:%.*]] = icmp sgt i32 [[SUB4_1]], -1
; CHECK-NEXT: [[SUB12_1:%.*]] = sub nsw i32 128, [[CONV3_1]]
; CHECK-NEXT: [[COND14_1:%.*]] = select i1 [[CMP8_1]], i32 [[SUB4_1]], i32 [[SUB12_1]]
; CHECK-NEXT: [[ADD_1:%.*]] = add nsw i32 [[COND14_1]], [[COND_1]]
; CHECK-NEXT: [[IDX_NEG_1:%.*]] = sub nsw i32 0, [[ADD_1]]
; CHECK-NEXT: [[ADD_PTR_1:%.*]] = getelementptr inbounds i8, i8* [[ADD_PTR23]], i32 [[IDX_NEG_1]]
; CHECK-NEXT: [[TMP10:%.*]] = load i8, i8* [[ADD_PTR_1]], align 1
; CHECK-NEXT: [[CONV15_1:%.*]] = zext i8 [[TMP10]] to i32
; CHECK-NEXT: [[ADD16_1:%.*]] = add nsw i32 [[CONV15_1]], [[INTENSITY]]
; CHECK-NEXT: [[CONV17_1:%.*]] = trunc i32 [[ADD16_1]] to i8
; CHECK-NEXT: store i8 [[CONV17_1]], i8* [[ADD_PTR_1]], align 1
; CHECK-NEXT: [[ADD_PTR18_1:%.*]] = getelementptr inbounds i8, i8* [[ADD_PTR23]], i32 [[ADD_1]]
; CHECK-NEXT: [[TMP11:%.*]] = load i8, i8* [[ADD_PTR18_1]], align 1
; CHECK-NEXT: [[NOT_TOBOOL_1:%.*]] = icmp eq i8 [[TMP11]], 0
; CHECK-NEXT: [[CONV21_1:%.*]] = zext i1 [[NOT_TOBOOL_1]] to i8
; CHECK-NEXT: store i8 [[CONV21_1]], i8* [[ADD_PTR18_1]], align 1
; CHECK-NEXT: [[ADD_PTR23_1]] = getelementptr inbounds i8, i8* [[ADD_PTR23]], i32 [[TMP1]]
; CHECK-NEXT: [[INC_1]] = add nsw i32 [[Y_045]], 2
; CHECK-NEXT: [[EXITCOND_1:%.*]] = icmp eq i32 [[INC_1]], 128
; CHECK-NEXT: br i1 [[EXITCOND_1]], label [[FOR_COND_CLEANUP:%.*]], label [[FOR_BODY]]
;
entry:
%0 = load i32, i32* getelementptr inbounds ([10 x i32], [10 x i32]* @shift, i32 0, i32 0), align 4
%1 = load i32, i32* getelementptr inbounds ([10 x i32], [10 x i32]* @shift, i32 0, i32 1), align 4
%2 = load i8*, i8** getelementptr inbounds ([10 x i8*], [10 x i8*]* @data, i32 0, i32 0), align 4
%3 = load i8*, i8** getelementptr inbounds ([10 x i8*], [10 x i8*]* @data, i32 0, i32 1), align 4
%shr = lshr i32 1, %0
%arrayidx = getelementptr inbounds i8, i8* %2, i32 %shr
%shr1 = lshr i32 1, %1
%arrayidx2 = getelementptr inbounds i8, i8* %3, i32 %shr1
br label %for.body
for.cond.cleanup: ; preds = %for.body
ret void
for.body: ; preds = %for.body, %entry
%d1_data.046 = phi i8* [ %3, %entry ], [ %add.ptr23.1, %for.body ]
%y.045 = phi i32 [ 0, %entry ], [ %inc.1, %for.body ]
%4 = load i8, i8* %arrayidx, align 1
%conv = zext i8 %4 to i32
%sub = add nsw i32 %conv, -128
%5 = load i8, i8* %arrayidx2, align 1
%conv3 = zext i8 %5 to i32
%sub4 = add nsw i32 %conv3, -128
%cmp5 = icmp sgt i32 %sub, -1
%sub7 = sub nsw i32 128, %conv
%cond = select i1 %cmp5, i32 %sub, i32 %sub7
%cmp8 = icmp sgt i32 %sub4, -1
%sub12 = sub nsw i32 128, %conv3
%cond14 = select i1 %cmp8, i32 %sub4, i32 %sub12
%add = add nsw i32 %cond14, %cond
%idx.neg = sub nsw i32 0, %add
%add.ptr = getelementptr inbounds i8, i8* %d1_data.046, i32 %idx.neg
%6 = load i8, i8* %add.ptr, align 1
%conv15 = zext i8 %6 to i32
%add16 = add nsw i32 %conv15, %intensity
%conv17 = trunc i32 %add16 to i8
store i8 %conv17, i8* %add.ptr, align 1
%add.ptr18 = getelementptr inbounds i8, i8* %d1_data.046, i32 %add
%7 = load i8, i8* %add.ptr18, align 1
%not.tobool = icmp eq i8 %7, 0
%conv21 = zext i1 %not.tobool to i8
store i8 %conv21, i8* %add.ptr18, align 1
%add.ptr23 = getelementptr inbounds i8, i8* %d1_data.046, i32 %1
%8 = load i8, i8* %arrayidx, align 1
%conv.1 = zext i8 %8 to i32
%sub.1 = add nsw i32 %conv.1, -128
%9 = load i8, i8* %arrayidx2, align 1
%conv3.1 = zext i8 %9 to i32
%sub4.1 = add nsw i32 %conv3.1, -128
%cmp5.1 = icmp sgt i32 %sub.1, -1
%sub7.1 = sub nsw i32 128, %conv.1
%cond.1 = select i1 %cmp5.1, i32 %sub.1, i32 %sub7.1
%cmp8.1 = icmp sgt i32 %sub4.1, -1
%sub12.1 = sub nsw i32 128, %conv3.1
%cond14.1 = select i1 %cmp8.1, i32 %sub4.1, i32 %sub12.1
%add.1 = add nsw i32 %cond14.1, %cond.1
%idx.neg.1 = sub nsw i32 0, %add.1
%add.ptr.1 = getelementptr inbounds i8, i8* %add.ptr23, i32 %idx.neg.1
%10 = load i8, i8* %add.ptr.1, align 1
%conv15.1 = zext i8 %10 to i32
%add16.1 = add nsw i32 %conv15.1, %intensity
%conv17.1 = trunc i32 %add16.1 to i8
store i8 %conv17.1, i8* %add.ptr.1, align 1
%add.ptr18.1 = getelementptr inbounds i8, i8* %add.ptr23, i32 %add.1
%11 = load i8, i8* %add.ptr18.1, align 1
%not.tobool.1 = icmp eq i8 %11, 0
%conv21.1 = zext i1 %not.tobool.1 to i8
store i8 %conv21.1, i8* %add.ptr18.1, align 1
%add.ptr23.1 = getelementptr inbounds i8, i8* %add.ptr23, i32 %1
%inc.1 = add nsw i32 %y.045, 2
%exitcond.1 = icmp eq i32 %inc.1, 128
br i1 %exitcond.1, label %for.cond.cleanup, label %for.body
}
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