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[DA] Enable -da-delinearize by default

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This enables da-delinearize in Dependence Analysis for delinearizing array
accesses into multiple dimensions. This can help to increase the power of
Dependence analysis on multi-dimensional arrays and prevent having to fall
back to the slower and less accurate MIV tests. It adds static checks on the
bounds of the arrays to ensure that one dimension doesn't overflow into
another, and brings our code in line with our tests.

Differential Revision: https://reviews.llvm.org/D45872

llvm-svn: 335217
This commit is contained in:
David Green 2018-06-21 11:53:16 +00:00
parent fe48f7ae99
commit e74f29c6a3
17 changed files with 639 additions and 41 deletions
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6
include/llvm/Analysis/DependenceAnalysis.h
View File

@ -557,6 +557,12 @@ template <typename T> class ArrayRef;
const SCEV *X,
const SCEV *Y) const;
/// isKnownLessThan - Compare to see if S is less than Size
/// Another wrapper for isKnownNegative(S - max(Size, 1)) with some extra
/// checking if S is an AddRec and we can prove lessthan using the loop
/// bounds.
bool isKnownLessThan(const SCEV *S, const SCEV *Size) const;
/// collectUpperBound - All subscripts are the same type (on my machine,
/// an i64). The loop bound may be a smaller type. collectUpperBound
/// find the bound, if available, and zero extends it to the Type T.

63
lib/Analysis/DependenceAnalysis.cpp
View File

@ -108,8 +108,8 @@ STATISTIC(BanerjeeIndependence, "Banerjee independence");
STATISTIC(BanerjeeSuccesses, "Banerjee successes");
static cl::opt<bool>
Delinearize("da-delinearize", cl::init(false), cl::Hidden, cl::ZeroOrMore,
cl::desc("Try to delinearize array references."));
Delinearize("da-delinearize", cl::init(true), cl::Hidden, cl::ZeroOrMore,
cl::desc("Try to delinearize array references."));
//===----------------------------------------------------------------------===//
// basics
@ -994,6 +994,38 @@ bool DependenceInfo::isKnownPredicate(ICmpInst::Predicate Pred, const SCEV *X,
}
}
/// Compare to see if S is less than Size, using isKnownNegative(S - max(Size, 1))
/// with some extra checking if S is an AddRec and we can prove less-than using
/// the loop bounds.
bool DependenceInfo::isKnownLessThan(const SCEV *S, const SCEV *Size) const {
// First unify to the same type
auto *SType = dyn_cast<IntegerType>(S->getType());
auto *SizeType = dyn_cast<IntegerType>(Size->getType());
if (!SType || !SizeType)
return false;
Type *MaxType =
(SType->getBitWidth() >= SizeType->getBitWidth()) ? SType : SizeType;
S = SE->getTruncateOrZeroExtend(S, MaxType);
Size = SE->getTruncateOrZeroExtend(Size, MaxType);
// Special check for addrecs using BE taken count
const SCEV *Bound = SE->getMinusSCEV(S, Size);
if (const SCEVAddRecExpr *AddRec = dyn_cast<SCEVAddRecExpr>(Bound)) {
if (AddRec->isAffine()) {
const SCEV *BECount = SE->getBackedgeTakenCount(AddRec->getLoop());
if (!isa<SCEVCouldNotCompute>(BECount)) {
const SCEV *Limit = AddRec->evaluateAtIteration(BECount, *SE);
if (SE->isKnownNegative(Limit))
return true;
}
}
}
// Check using normal isKnownNegative
const SCEV *LimitedBound =
SE->getMinusSCEV(S, SE->getSMaxExpr(Size, SE->getOne(Size->getType())));
return SE->isKnownNegative(LimitedBound);
}
// All subscripts are all the same type.
// Loop bound may be smaller (e.g., a char).
@ -3253,6 +3285,26 @@ bool DependenceInfo::tryDelinearize(Instruction *Src, Instruction *Dst,
int size = SrcSubscripts.size();
// Statically check that the array bounds are in-range. The first subscript we
// don't have a size for and it cannot overflow into another subscript, so is
// always safe. The others need to be 0 <= subscript[i] < bound, for both src
// and dst.
// FIXME: It may be better to record these sizes and add them as constraints
// to the dependency checks.
for (int i = 1; i < size; ++i) {
if (!SE->isKnownNonNegative(SrcSubscripts[i]))
return false;
if (!isKnownLessThan(SrcSubscripts[i], Sizes[i - 1]))
return false;
if (!SE->isKnownNonNegative(DstSubscripts[i]))
return false;
if (!isKnownLessThan(DstSubscripts[i], Sizes[i - 1]))
return false;
}
LLVM_DEBUG({
dbgs() << "\nSrcSubscripts: ";
for (int i = 0; i < size; i++)
@ -3271,13 +3323,6 @@ bool DependenceInfo::tryDelinearize(Instruction *Src, Instruction *Dst,
Pair[i].Src = SrcSubscripts[i];
Pair[i].Dst = DstSubscripts[i];
unifySubscriptType(&Pair[i]);
// FIXME: we should record the bounds SrcSizes[i] and DstSizes[i] that the
// delinearization has found, and add these constraints to the dependence
// check to avoid memory accesses overflow from one dimension into another.
// This is related to the problem of determining the existence of data
// dependences in array accesses using a different number of subscripts: in
// C one can access an array A[100][100]; as A[0][9999], *A[9999], etc.
}
return true;

2
test/Analysis/Delinearization/multidim_two_accesses_different_delinearization.ll
View File

@ -1,4 +1,4 @@
; RUN: opt -basicaa -da -analyze -da-delinearize < %s
; RUN: opt -basicaa -da -analyze < %s
target datalayout = "e-p:64:64:64-i1:8:8-i8:8:8-i16:16:16-i32:32:32-i64:64:64-f32:32:32-f64:64:64-v64:64:64-v128:128:128-a0:0:64-s0:64:64-f80:128:128-n8:16:32:64-S128"
target triple = "x86_64-unknown-linux-gnu"

3
test/Analysis/DependenceAnalysis/Banerjee.ll
View File

@ -1,7 +1,6 @@
; RUN: opt < %s -analyze -basicaa -da -da-delinearize=false | FileCheck %s
; RUN: opt < %s -analyze -basicaa -da -da-delinearize | FileCheck %s -check-prefix=DELIN
; RUN: opt < %s -analyze -basicaa -da | FileCheck %s -check-prefix=DELIN
; ModuleID = 'Banerjee.bc'
target datalayout = "e-p:64:64:64-i1:8:8-i8:8:8-i16:16:16-i32:32:32-i64:64:64-f32:32:32-f64:64:64-v64:64:64-v128:128:128-a0:0:64-s0:64:64-f80:128:128-n8:16:32:64-S128"
target triple = "x86_64-apple-macosx10.6.0"

3
test/Analysis/DependenceAnalysis/Coupled.ll
View File

@ -1,6 +1,5 @@
; RUN: opt < %s -analyze -basicaa -da -da-delinearize | FileCheck %s
; RUN: opt < %s -analyze -basicaa -da | FileCheck %s
; ModuleID = 'Coupled.bc'
target datalayout = "e-p:64:64:64-i1:8:8-i8:8:8-i16:16:16-i32:32:32-i64:64:64-f32:32:32-f64:64:64-v64:64:64-v128:128:128-a0:0:64-s0:64:64-f80:128:128-n8:16:32:64-S128"
target triple = "x86_64-apple-macosx10.6.0"

556
test/Analysis/DependenceAnalysis/DADelin.ll Normal file
View File

@ -0,0 +1,556 @@
; RUN: opt < %s -analyze -basicaa -da | FileCheck %s
target datalayout = "e-m:e-p:32:32-i64:64-v128:64:128-a:0:32-n32-S64"
target triple = "thumbv8m.main-arm-none-eabi"
; CHECK-LABEL: t1
;; for (int i = 0; i < n; i++)
;; for (int j = 0; j < m; j++)
;; for (int k = 0; k < o; k++)
;; = A[i*m*o + j*o + k]
;; A[i*m*o + j*o + k] =
define void @t1(i32 %n, i32 %m, i32 %o, i32* nocapture %A) {
; CHECK: da analyze - none!
; CHECK: da analyze - consistent anti [0 0 0|<]!
; CHECK: da analyze - none!
entry:
%cmp49 = icmp sgt i32 %n, 0
br i1 %cmp49, label %for.cond1.preheader.lr.ph, label %for.cond.cleanup
for.cond1.preheader.lr.ph: ; preds = %entry
%cmp247 = icmp sgt i32 %m, 0
%cmp645 = icmp sgt i32 %o, 0
br label %for.cond1.preheader
for.cond1.preheader: ; preds = %for.cond.cleanup3, %for.cond1.preheader.lr.ph
%i.050 = phi i32 [ 0, %for.cond1.preheader.lr.ph ], [ %inc23, %for.cond.cleanup3 ]
br i1 %cmp247, label %for.cond5.preheader.lr.ph, label %for.cond.cleanup3
for.cond5.preheader.lr.ph: ; preds = %for.cond1.preheader
%mul = mul nsw i32 %i.050, %m
br label %for.cond5.preheader
for.cond5.preheader: ; preds = %for.cond.cleanup7, %for.cond5.preheader.lr.ph
%j.048 = phi i32 [ 0, %for.cond5.preheader.lr.ph ], [ %inc20, %for.cond.cleanup7 ]
br i1 %cmp645, label %for.body8.lr.ph, label %for.cond.cleanup7
for.body8.lr.ph: ; preds = %for.cond5.preheader
%mul944 = add i32 %j.048, %mul
%add = mul i32 %mul944, %o
br label %for.body8
for.body8: ; preds = %for.body8, %for.body8.lr.ph
%k.046 = phi i32 [ 0, %for.body8.lr.ph ], [ %inc, %for.body8 ]
%add11 = add nsw i32 %k.046, %add
%arrayidx = getelementptr inbounds i32, i32* %A, i32 %add11
%0 = load i32, i32* %arrayidx, align 4
%add12 = add nsw i32 %0, 1
store i32 %add12, i32* %arrayidx, align 4
%inc = add nuw nsw i32 %k.046, 1
%exitcond = icmp eq i32 %inc, %o
br i1 %exitcond, label %for.cond.cleanup7, label %for.body8
for.cond.cleanup7: ; preds = %for.body8, %for.cond5.preheader
%inc20 = add nuw nsw i32 %j.048, 1
%exitcond51 = icmp eq i32 %inc20, %m
br i1 %exitcond51, label %for.cond.cleanup3, label %for.cond5.preheader
for.cond.cleanup3: ; preds = %for.cond.cleanup7, %for.cond1.preheader
%inc23 = add nuw nsw i32 %i.050, 1
%exitcond52 = icmp eq i32 %inc23, %n
br i1 %exitcond52, label %for.cond.cleanup, label %for.cond1.preheader
for.cond.cleanup: ; preds = %for.cond.cleanup3, %entry
ret void
}
; CHECK-LABEL: t2
;; for (int i = 0; i < n; i++)
;; for (int j = 0; j < m; j++)
;; for (int k = 0; k < o; k++)
;; = A[i*m*o + j*o + k]
;; A[i*m*o + j*o + k + 1] =
define void @t2(i32 %n, i32 %m, i32 %o, i32* nocapture %A) {
; CHECK: da analyze - none!
; CHECK: da analyze - anti [* * *|<]!
; CHECK: da analyze - output [* * *]!
entry:
%cmp49 = icmp sgt i32 %n, 0
br i1 %cmp49, label %for.cond1.preheader.lr.ph, label %for.cond.cleanup
for.cond1.preheader.lr.ph: ; preds = %entry
%cmp247 = icmp sgt i32 %m, 0
%cmp645 = icmp sgt i32 %o, 0
br label %for.cond1.preheader
for.cond1.preheader: ; preds = %for.cond.cleanup3, %for.cond1.preheader.lr.ph
%i.050 = phi i32 [ 0, %for.cond1.preheader.lr.ph ], [ %inc23, %for.cond.cleanup3 ]
br i1 %cmp247, label %for.cond5.preheader.lr.ph, label %for.cond.cleanup3
for.cond5.preheader.lr.ph: ; preds = %for.cond1.preheader
%mul = mul nsw i32 %i.050, %m
br label %for.cond5.preheader
for.cond5.preheader: ; preds = %for.cond.cleanup7, %for.cond5.preheader.lr.ph
%j.048 = phi i32 [ 0, %for.cond5.preheader.lr.ph ], [ %inc20, %for.cond.cleanup7 ]
br i1 %cmp645, label %for.body8.lr.ph, label %for.cond.cleanup7
for.body8.lr.ph: ; preds = %for.cond5.preheader
%mul944 = add i32 %j.048, %mul
%add = mul i32 %mul944, %o
br label %for.body8
for.body8: ; preds = %for.body8, %for.body8.lr.ph
%k.046 = phi i32 [ 0, %for.body8.lr.ph ], [ %inc, %for.body8 ]
%add11 = add nsw i32 %k.046, %add
%arrayidx = getelementptr inbounds i32, i32* %A, i32 %add11
%0 = load i32, i32* %arrayidx, align 4
%add12 = add nsw i32 %0, 1
%add111 = add nsw i32 %add11, 1
%arrayidx2 = getelementptr inbounds i32, i32* %A, i32 %add111
store i32 %add12, i32* %arrayidx2, align 4
%inc = add nuw nsw i32 %k.046, 1
%exitcond = icmp eq i32 %inc, %o
br i1 %exitcond, label %for.cond.cleanup7, label %for.body8
for.cond.cleanup7: ; preds = %for.body8, %for.cond5.preheader
%inc20 = add nuw nsw i32 %j.048, 1
%exitcond51 = icmp eq i32 %inc20, %m
br i1 %exitcond51, label %for.cond.cleanup3, label %for.cond5.preheader
for.cond.cleanup3: ; preds = %for.cond.cleanup7, %for.cond1.preheader
%inc23 = add nuw nsw i32 %i.050, 1
%exitcond52 = icmp eq i32 %inc23, %n
br i1 %exitcond52, label %for.cond.cleanup, label %for.cond1.preheader
for.cond.cleanup: ; preds = %for.cond.cleanup3, %entry
ret void
}
; CHECK-LABEL: t3
;; for (int i = 0; i < n; i++)
;; for (int j = 0; j < m; j++)
;; for (int k = 0; k < o; k++)
;; = A[i*m*o + j*o + k]
;; A[i*m*o + j*o + k - 1] =
define void @t3(i32 %n, i32 %m, i32 %o, i32* nocapture %A) {
; CHECK: da analyze - none!
; CHECK: da analyze - anti [* * *|<]!
; CHECK: da analyze - output [* * *]!
entry:
%cmp49 = icmp sgt i32 %n, 0
br i1 %cmp49, label %for.cond1.preheader.lr.ph, label %for.cond.cleanup
for.cond1.preheader.lr.ph: ; preds = %entry
%cmp247 = icmp sgt i32 %m, 0
%cmp645 = icmp sgt i32 %o, 0
br label %for.cond1.preheader
for.cond1.preheader: ; preds = %for.cond.cleanup3, %for.cond1.preheader.lr.ph
%i.050 = phi i32 [ 0, %for.cond1.preheader.lr.ph ], [ %inc23, %for.cond.cleanup3 ]
br i1 %cmp247, label %for.cond5.preheader.lr.ph, label %for.cond.cleanup3
for.cond5.preheader.lr.ph: ; preds = %for.cond1.preheader
%mul = mul nsw i32 %i.050, %m
br label %for.cond5.preheader
for.cond5.preheader: ; preds = %for.cond.cleanup7, %for.cond5.preheader.lr.ph
%j.048 = phi i32 [ 0, %for.cond5.preheader.lr.ph ], [ %inc20, %for.cond.cleanup7 ]
br i1 %cmp645, label %for.body8.lr.ph, label %for.cond.cleanup7
for.body8.lr.ph: ; preds = %for.cond5.preheader
%mul944 = add i32 %j.048, %mul
%add = mul i32 %mul944, %o
br label %for.body8
for.body8: ; preds = %for.body8, %for.body8.lr.ph
%k.046 = phi i32 [ 0, %for.body8.lr.ph ], [ %inc, %for.body8 ]
%add11 = add nsw i32 %k.046, %add
%arrayidx = getelementptr inbounds i32, i32* %A, i32 %add11
%0 = load i32, i32* %arrayidx, align 4
%add12 = add nsw i32 %0, 1
%add111 = sub nsw i32 %add11, 1
%arrayidx2 = getelementptr inbounds i32, i32* %A, i32 %add111
store i32 %add12, i32* %arrayidx2, align 4
%inc = add nuw nsw i32 %k.046, 1
%exitcond = icmp eq i32 %inc, %o
br i1 %exitcond, label %for.cond.cleanup7, label %for.body8
for.cond.cleanup7: ; preds = %for.body8, %for.cond5.preheader
%inc20 = add nuw nsw i32 %j.048, 1
%exitcond51 = icmp eq i32 %inc20, %m
br i1 %exitcond51, label %for.cond.cleanup3, label %for.cond5.preheader
for.cond.cleanup3: ; preds = %for.cond.cleanup7, %for.cond1.preheader
%inc23 = add nuw nsw i32 %i.050, 1
%exitcond52 = icmp eq i32 %inc23, %n
br i1 %exitcond52, label %for.cond.cleanup, label %for.cond1.preheader
for.cond.cleanup: ; preds = %for.cond.cleanup3, %entry
ret void
}
; CHECK-LABEL: t4
;; for (int i = 0; i < n; i++)
;; for (int j = 0; j < m; j++)
;; for (int k = 0; k < o; k++)
;; = A[i*m*o + j*o + k]
;; A[i*m*o + j*o + k + o] =
define void @t4(i32 %n, i32 %m, i32 %o, i32* nocapture %A) {
; CHECK: da analyze - none!
; CHECK: da analyze - anti [* * *|<]!
; CHECK: da analyze - output [* * *]!
entry:
%cmp49 = icmp sgt i32 %n, 0
br i1 %cmp49, label %for.cond1.preheader.lr.ph, label %for.cond.cleanup
for.cond1.preheader.lr.ph: ; preds = %entry
%cmp247 = icmp sgt i32 %m, 0
%cmp645 = icmp sgt i32 %o, 0
br label %for.cond1.preheader
for.cond1.preheader: ; preds = %for.cond.cleanup3, %for.cond1.preheader.lr.ph
%i.050 = phi i32 [ 0, %for.cond1.preheader.lr.ph ], [ %inc23, %for.cond.cleanup3 ]
br i1 %cmp247, label %for.cond5.preheader.lr.ph, label %for.cond.cleanup3
for.cond5.preheader.lr.ph: ; preds = %for.cond1.preheader
%mul = mul nsw i32 %i.050, %m
br label %for.cond5.preheader
for.cond5.preheader: ; preds = %for.cond.cleanup7, %for.cond5.preheader.lr.ph
%j.048 = phi i32 [ 0, %for.cond5.preheader.lr.ph ], [ %inc20, %for.cond.cleanup7 ]
br i1 %cmp645, label %for.body8.lr.ph, label %for.cond.cleanup7
for.body8.lr.ph: ; preds = %for.cond5.preheader
%mul944 = add i32 %j.048, %mul
%add = mul i32 %mul944, %o
br label %for.body8
for.body8: ; preds = %for.body8, %for.body8.lr.ph
%k.046 = phi i32 [ 0, %for.body8.lr.ph ], [ %inc, %for.body8 ]
%add11 = add nsw i32 %k.046, %add
%arrayidx = getelementptr inbounds i32, i32* %A, i32 %add11
%0 = load i32, i32* %arrayidx, align 4
%add12 = add nsw i32 %0, 1
%add111 = add nsw i32 %add11, %o
%arrayidx2 = getelementptr inbounds i32, i32* %A, i32 %add111
store i32 %add12, i32* %arrayidx2, align 4
%inc = add nuw nsw i32 %k.046, 1
%exitcond = icmp eq i32 %inc, %o
br i1 %exitcond, label %for.cond.cleanup7, label %for.body8
for.cond.cleanup7: ; preds = %for.body8, %for.cond5.preheader
%inc20 = add nuw nsw i32 %j.048, 1
%exitcond51 = icmp eq i32 %inc20, %m
br i1 %exitcond51, label %for.cond.cleanup3, label %for.cond5.preheader
for.cond.cleanup3: ; preds = %for.cond.cleanup7, %for.cond1.preheader
%inc23 = add nuw nsw i32 %i.050, 1
%exitcond52 = icmp eq i32 %inc23, %n
br i1 %exitcond52, label %for.cond.cleanup, label %for.cond1.preheader
for.cond.cleanup: ; preds = %for.cond.cleanup3, %entry
ret void
}
; CHECK-LABEL: t5
;; for (int i = 0; i < n; i++)
;; for (int j = 0; j < m; j++)
;; for (int k = 0; k < o; k++)
;; = A[i*m*o + j*o + k]
;; A[i*m*o + j*o + k - o] =
define void @t5(i32 %n, i32 %m, i32 %o, i32* nocapture %A) {
; CHECK: da analyze - none!
; CHECK: da analyze - anti [* * *|<]!
; CHECK: da analyze - output [* * *]!
entry:
%cmp49 = icmp sgt i32 %n, 0
br i1 %cmp49, label %for.cond1.preheader.lr.ph, label %for.cond.cleanup
for.cond1.preheader.lr.ph: ; preds = %entry
%cmp247 = icmp sgt i32 %m, 0
%cmp645 = icmp sgt i32 %o, 0
br label %for.cond1.preheader
for.cond1.preheader: ; preds = %for.cond.cleanup3, %for.cond1.preheader.lr.ph
%i.050 = phi i32 [ 0, %for.cond1.preheader.lr.ph ], [ %inc23, %for.cond.cleanup3 ]
br i1 %cmp247, label %for.cond5.preheader.lr.ph, label %for.cond.cleanup3
for.cond5.preheader.lr.ph: ; preds = %for.cond1.preheader
%mul = mul nsw i32 %i.050, %m
br label %for.cond5.preheader
for.cond5.preheader: ; preds = %for.cond.cleanup7, %for.cond5.preheader.lr.ph
%j.048 = phi i32 [ 0, %for.cond5.preheader.lr.ph ], [ %inc20, %for.cond.cleanup7 ]
br i1 %cmp645, label %for.body8.lr.ph, label %for.cond.cleanup7
for.body8.lr.ph: ; preds = %for.cond5.preheader
%mul944 = add i32 %j.048, %mul
%add = mul i32 %mul944, %o
br label %for.body8
for.body8: ; preds = %for.body8, %for.body8.lr.ph
%k.046 = phi i32 [ 0, %for.body8.lr.ph ], [ %inc, %for.body8 ]
%add11 = add nsw i32 %k.046, %add
%arrayidx = getelementptr inbounds i32, i32* %A, i32 %add11
%0 = load i32, i32* %arrayidx, align 4
%add12 = add nsw i32 %0, 1
%add111 = sub nsw i32 %add11, %o
%arrayidx2 = getelementptr inbounds i32, i32* %A, i32 %add111
store i32 %add12, i32* %arrayidx2, align 4
%inc = add nuw nsw i32 %k.046, 1
%exitcond = icmp eq i32 %inc, %o
br i1 %exitcond, label %for.cond.cleanup7, label %for.body8
for.cond.cleanup7: ; preds = %for.body8, %for.cond5.preheader
%inc20 = add nuw nsw i32 %j.048, 1
%exitcond51 = icmp eq i32 %inc20, %m
br i1 %exitcond51, label %for.cond.cleanup3, label %for.cond5.preheader
for.cond.cleanup3: ; preds = %for.cond.cleanup7, %for.cond1.preheader
%inc23 = add nuw nsw i32 %i.050, 1
%exitcond52 = icmp eq i32 %inc23, %n
br i1 %exitcond52, label %for.cond.cleanup, label %for.cond1.preheader
for.cond.cleanup: ; preds = %for.cond.cleanup3, %entry
ret void
}
; CHECK-LABEL: t6
;; for (int i = 0; i < n; i++)
;; for (int j = 0; j < m; j++)
;; for (int k = 0; k < o; k++)
;; = A[i*m*o + j*o + k]
;; A[i*m*o + j*o + k + m*o] =
define void @t6(i32 %n, i32 %m, i32 %o, i32* nocapture %A) {
; CHECK: da analyze - none!
; CHECK: da analyze - consistent anti [-1 0 0]!
; CHECK: da analyze - none!
entry:
%cmp49 = icmp sgt i32 %n, 0
br i1 %cmp49, label %for.cond1.preheader.lr.ph, label %for.cond.cleanup
for.cond1.preheader.lr.ph: ; preds = %entry
%cmp247 = icmp sgt i32 %m, 0
%cmp645 = icmp sgt i32 %o, 0
br label %for.cond1.preheader
for.cond1.preheader: ; preds = %for.cond.cleanup3, %for.cond1.preheader.lr.ph
%i.050 = phi i32 [ 0, %for.cond1.preheader.lr.ph ], [ %inc23, %for.cond.cleanup3 ]
br i1 %cmp247, label %for.cond5.preheader.lr.ph, label %for.cond.cleanup3
for.cond5.preheader.lr.ph: ; preds = %for.cond1.preheader
%mul = mul nsw i32 %i.050, %m
br label %for.cond5.preheader
for.cond5.preheader: ; preds = %for.cond.cleanup7, %for.cond5.preheader.lr.ph
%j.048 = phi i32 [ 0, %for.cond5.preheader.lr.ph ], [ %inc20, %for.cond.cleanup7 ]
br i1 %cmp645, label %for.body8.lr.ph, label %for.cond.cleanup7
for.body8.lr.ph: ; preds = %for.cond5.preheader
%mul944 = add i32 %j.048, %mul
%add = mul i32 %mul944, %o
br label %for.body8
for.body8: ; preds = %for.body8, %for.body8.lr.ph
%k.046 = phi i32 [ 0, %for.body8.lr.ph ], [ %inc, %for.body8 ]
%add11 = add nsw i32 %k.046, %add
%arrayidx = getelementptr inbounds i32, i32* %A, i32 %add11
%0 = load i32, i32* %arrayidx, align 4
%add12 = add nsw i32 %0, 1
%mo = mul i32 %m, %o
%add111 = add nsw i32 %add11, %mo
%arrayidx2 = getelementptr inbounds i32, i32* %A, i32 %add111
store i32 %add12, i32* %arrayidx2, align 4
%inc = add nuw nsw i32 %k.046, 1
%exitcond = icmp eq i32 %inc, %o
br i1 %exitcond, label %for.cond.cleanup7, label %for.body8
for.cond.cleanup7: ; preds = %for.body8, %for.cond5.preheader
%inc20 = add nuw nsw i32 %j.048, 1
%exitcond51 = icmp eq i32 %inc20, %m
br i1 %exitcond51, label %for.cond.cleanup3, label %for.cond5.preheader
for.cond.cleanup3: ; preds = %for.cond.cleanup7, %for.cond1.preheader
%inc23 = add nuw nsw i32 %i.050, 1
%exitcond52 = icmp eq i32 %inc23, %n
br i1 %exitcond52, label %for.cond.cleanup, label %for.cond1.preheader
for.cond.cleanup: ; preds = %for.cond.cleanup3, %entry
ret void
}
; CHECK-LABEL: t7
;; for (int i = 0; i < n; i++)
;; for (int j = 0; j < m; j++)
;; for (int k = 0; k < o; k++)
;; = A[i*m*o + j*o + k]
;; A[i*m*o + j*o + k - m*o] =
define void @t7(i32 %n, i32 %m, i32 %o, i32* nocapture %A) {
; CHECK: da analyze - none!
; CHECK: da analyze - consistent anti [1 0 0]!
; CHECK: da analyze - none!
entry:
%cmp49 = icmp sgt i32 %n, 0
br i1 %cmp49, label %for.cond1.preheader.lr.ph, label %for.cond.cleanup
for.cond1.preheader.lr.ph: ; preds = %entry
%cmp247 = icmp sgt i32 %m, 0
%cmp645 = icmp sgt i32 %o, 0
br label %for.cond1.preheader
for.cond1.preheader: ; preds = %for.cond.cleanup3, %for.cond1.preheader.lr.ph
%i.050 = phi i32 [ 0, %for.cond1.preheader.lr.ph ], [ %inc23, %for.cond.cleanup3 ]
br i1 %cmp247, label %for.cond5.preheader.lr.ph, label %for.cond.cleanup3
for.cond5.preheader.lr.ph: ; preds = %for.cond1.preheader
%mul = mul nsw i32 %i.050, %m
br label %for.cond5.preheader
for.cond5.preheader: ; preds = %for.cond.cleanup7, %for.cond5.preheader.lr.ph
%j.048 = phi i32 [ 0, %for.cond5.preheader.lr.ph ], [ %inc20, %for.cond.cleanup7 ]
br i1 %cmp645, label %for.body8.lr.ph, label %for.cond.cleanup7
for.body8.lr.ph: ; preds = %for.cond5.preheader
%mul944 = add i32 %j.048, %mul
%add = mul i32 %mul944, %o
br label %for.body8
for.body8: ; preds = %for.body8, %for.body8.lr.ph
%k.046 = phi i32 [ 0, %for.body8.lr.ph ], [ %inc, %for.body8 ]
%add11 = add nsw i32 %k.046, %add
%arrayidx = getelementptr inbounds i32, i32* %A, i32 %add11
%0 = load i32, i32* %arrayidx, align 4
%add12 = add nsw i32 %0, 1
%mo = mul i32 %m, %o
%add111 = sub nsw i32 %add11, %mo
%arrayidx2 = getelementptr inbounds i32, i32* %A, i32 %add111
store i32 %add12, i32* %arrayidx2, align 4
%inc = add nuw nsw i32 %k.046, 1
%exitcond = icmp eq i32 %inc, %o
br i1 %exitcond, label %for.cond.cleanup7, label %for.body8
for.cond.cleanup7: ; preds = %for.body8, %for.cond5.preheader
%inc20 = add nuw nsw i32 %j.048, 1
%exitcond51 = icmp eq i32 %inc20, %m
br i1 %exitcond51, label %for.cond.cleanup3, label %for.cond5.preheader
for.cond.cleanup3: ; preds = %for.cond.cleanup7, %for.cond1.preheader
%inc23 = add nuw nsw i32 %i.050, 1
%exitcond52 = icmp eq i32 %inc23, %n
br i1 %exitcond52, label %for.cond.cleanup, label %for.cond1.preheader
for.cond.cleanup: ; preds = %for.cond.cleanup3, %entry
ret void
}
; CHECK-LABEL: t8
;; for (int i = 0; i < n; i++)
;; for (int j = 0; j < m; j++)
;; for (int k = 1; k < o; k++)
;; = A[i*m*o + j*o + k]
;; A[i*m*o + j*o + k - 1] =
define void @t8(i32 %n, i32 %m, i32 %o, i32* nocapture %A) {
; CHECK: da analyze - none!
; CHECK: da analyze - consistent anti [0 0 1]!
; CHECK: da analyze - none!
entry:
%cmp49 = icmp sgt i32 %n, 0
br i1 %cmp49, label %for.cond1.preheader.lr.ph, label %for.cond.cleanup
for.cond1.preheader.lr.ph: ; preds = %entry
%cmp247 = icmp sgt i32 %m, 0
%cmp645 = icmp sgt i32 %o, 0
br label %for.cond1.preheader
for.cond1.preheader: ; preds = %for.cond.cleanup3, %for.cond1.preheader.lr.ph
%i.050 = phi i32 [ 0, %for.cond1.preheader.lr.ph ], [ %inc23, %for.cond.cleanup3 ]
br i1 %cmp247, label %for.cond5.preheader.lr.ph, label %for.cond.cleanup3
for.cond5.preheader.lr.ph: ; preds = %for.cond1.preheader
%mul = mul nsw i32 %i.050, %m
br label %for.cond5.preheader
for.cond5.preheader: ; preds = %for.cond.cleanup7, %for.cond5.preheader.lr.ph
%j.048 = phi i32 [ 0, %for.cond5.preheader.lr.ph ], [ %inc20, %for.cond.cleanup7 ]
br i1 %cmp645, label %for.body8.lr.ph, label %for.cond.cleanup7
for.body8.lr.ph: ; preds = %for.cond5.preheader
%mul944 = add i32 %j.048, %mul
%add = mul i32 %mul944, %o
br label %for.body8
for.body8: ; preds = %for.body8, %for.body8.lr.ph
%k.046 = phi i32 [ 1, %for.body8.lr.ph ], [ %inc, %for.body8 ]
%add11 = add nsw i32 %k.046, %add
%arrayidx = getelementptr inbounds i32, i32* %A, i32 %add11
%0 = load i32, i32* %arrayidx, align 4
%add12 = add nsw i32 %0, 1
%add111 = sub nsw i32 %add11, 1
%arrayidx2 = getelementptr inbounds i32, i32* %A, i32 %add111
store i32 %add12, i32* %arrayidx2, align 4
%inc = add nuw nsw i32 %k.046, 1
%exitcond = icmp eq i32 %inc, %o
br i1 %exitcond, label %for.cond.cleanup7, label %for.body8
for.cond.cleanup7: ; preds = %for.body8, %for.cond5.preheader
%inc20 = add nuw nsw i32 %j.048, 1
%exitcond51 = icmp eq i32 %inc20, %m
br i1 %exitcond51, label %for.cond.cleanup3, label %for.cond5.preheader
for.cond.cleanup3: ; preds = %for.cond.cleanup7, %for.cond1.preheader
%inc23 = add nuw nsw i32 %i.050, 1
%exitcond52 = icmp eq i32 %inc23, %n
br i1 %exitcond52, label %for.cond.cleanup, label %for.cond1.preheader
for.cond.cleanup: ; preds = %for.cond.cleanup3, %entry
ret void
}
; CHECK-LABEL: test_sizes
define double @test_sizes(i16 %h, i16 %N, i16* nocapture %array) {
; CHECK: da analyze - consistent input [0 S]!
; CHECK: da analyze - anti [* *|<]!
; CHECK: da analyze - output [* *]!
entry:
%cmp28 = icmp sgt i16 %N, 1
br i1 %cmp28, label %for.body.lr.ph, label %for.end12
for.body.lr.ph: ; preds = %entry
%cmp425 = icmp slt i16 %h, 0
%0 = add i16 %h, 1
%wide.trip.count = zext i16 %N to i32
br label %for.body
for.body: ; preds = %for.inc10, %for.body.lr.ph
%indvars.iv32 = phi i32 [ 1, %for.body.lr.ph ], [ %indvars.iv.next33, %for.inc10 ]
%indvars.iv = phi i16 [ 2, %for.body.lr.ph ], [ %indvars.iv.next, %for.inc10 ]
br i1 %cmp425, label %for.inc10, label %for.body5.lr.ph
for.body5.lr.ph: ; preds = %for.body
%1 = sext i16 %indvars.iv to i32
%arrayidx = getelementptr inbounds i16, i16* %array, i32 %indvars.iv32
br label %for.body5
for.body5: ; preds = %for.body5, %for.body5.lr.ph
%indvars.iv30 = phi i32 [ %indvars.iv.next31, %for.body5 ], [ %1, %for.body5.lr.ph ]
%j.027 = phi i16 [ %inc, %for.body5 ], [ 0, %for.body5.lr.ph ]
%2 = load i16, i16* %arrayidx, align 4
%add6 = add nsw i16 %2, %j.027
%arrayidx8 = getelementptr inbounds i16, i16* %array, i32 %indvars.iv30
store i16 %add6, i16* %arrayidx8, align 4
%inc = add nuw nsw i16 %j.027, 1
%indvars.iv.next31 = add nsw i32 %indvars.iv30, 1
%exitcond = icmp eq i16 %inc, %0
br i1 %exitcond, label %for.inc10, label %for.body5
for.inc10: ; preds = %for.body5, %for.body
%indvars.iv.next33 = add nuw nsw i32 %indvars.iv32, 1
%indvars.iv.next = add i16 %indvars.iv, %0
%exitcond34 = icmp eq i32 %indvars.iv.next33, %wide.trip.count
br i1 %exitcond34, label %for.end12, label %for.body
for.end12: ; preds = %for.inc10, %entry
ret double undef
}

3
test/Analysis/DependenceAnalysis/ExactSIV.ll
View File

@ -1,6 +1,5 @@
; RUN: opt < %s -analyze -basicaa -da -da-delinearize | FileCheck %s
; RUN: opt < %s -analyze -basicaa -da | FileCheck %s
; ModuleID = 'ExactSIV.bc'
target datalayout = "e-p:64:64:64-i1:8:8-i8:8:8-i16:16:16-i32:32:32-i64:64:64-f32:32:32-f64:64:64-v64:64:64-v128:128:128-a0:0:64-s0:64:64-f80:128:128-n8:16:32:64-S128"
target triple = "x86_64-apple-macosx10.6.0"

17
test/Analysis/DependenceAnalysis/GCD.ll
View File

@ -1,6 +1,5 @@
; RUN: opt < %s -analyze -basicaa -da -da-delinearize | FileCheck %s -check-prefix=DELIN
; RUN: opt < %s -analyze -basicaa -da | FileCheck %s -check-prefix=DELIN
; ModuleID = 'GCD.bc'
target datalayout = "e-p:64:64:64-i1:8:8-i8:8:8-i16:16:16-i32:32:32-i64:64:64-f32:32:32-f64:64:64-v64:64:64-v128:128:128-a0:0:64-s0:64:64-f80:128:128-n8:16:32:64-S128"
target triple = "x86_64-apple-macosx10.6.0"
@ -228,10 +227,10 @@ entry:
br label %for.cond1.preheader
; DELIN-LABEL: gcd4
; DELIN: da analyze - none!
; DELIN: da analyze - output [* *]!
; DELIN: da analyze - none!
; DELIN: da analyze - confused!
; DELIN: da analyze - none!
; DELIN: da analyze - input [* *]!
; DELIN: da analyze - confused!
; DELIN: da analyze - none!
@ -290,10 +289,10 @@ entry:
br label %for.cond1.preheader
; DELIN-LABEL: gcd5
; DELIN: da analyze - none!
; DELIN: da analyze - flow [> *]!
; DELIN: da analyze - output [* *]!
; DELIN: da analyze - flow [<> *]!
; DELIN: da analyze - confused!
; DELIN: da analyze - none!
; DELIN: da analyze - input [* *]!
; DELIN: da analyze - confused!
; DELIN: da analyze - none!
@ -353,10 +352,10 @@ entry:
br i1 %cmp4, label %for.cond1.preheader.preheader, label %for.end12
; DELIN-LABEL: gcd6
; DELIN: da analyze - none!
; DELIN: da analyze - output [* *]!
; DELIN: da analyze - none!
; DELIN: da analyze - confused!
; DELIN: da analyze - none!
; DELIN: da analyze - input [* *]!
; DELIN: da analyze - confused!
; DELIN: da analyze - output [* *]!

2
test/Analysis/DependenceAnalysis/Invariant.ll
View File

@ -1,4 +1,4 @@
; RUN: opt < %s -analyze -basicaa -da -da-delinearize | FileCheck %s
; RUN: opt < %s -analyze -basicaa -da | FileCheck %s
; Test for a bug, which caused an assert when an invalid
; SCEVAddRecExpr is created in addToCoefficient.

2
test/Analysis/DependenceAnalysis/NonAffineExpr.ll
View File

@ -1,4 +1,4 @@
; RUN: opt < %s -analyze -basicaa -da-delinearize -da
; RUN: opt < %s -analyze -basicaa -da
;
; CHECK: da analyze - consistent input [S S]!
; CHECK: da analyze - confused!

2
test/Analysis/DependenceAnalysis/NonCanonicalizedSubscript.ll
View File

@ -1,4 +1,4 @@
; RUN: opt < %s -analyze -basicaa -da -da-delinearize | FileCheck %s -check-prefix=DELIN
; RUN: opt < %s -analyze -basicaa -da | FileCheck %s -check-prefix=DELIN
target datalayout = "e-p:64:64:64-i1:8:8-i8:8:8-i16:16:16-i32:32:32-i64:64:64-f32:32:32-f64:64:64-v64:64:64-v128:128:128-a0:0:64-s0:64:64-f80:128:128-n8:16:32:64-S128"
target triple = "x86_64-apple-macosx10.6.0"

3
test/Analysis/DependenceAnalysis/Preliminary.ll
View File

@ -1,6 +1,5 @@
; RUN: opt < %s -analyze -basicaa -da -da-delinearize | FileCheck %s
; RUN: opt < %s -analyze -basicaa -da | FileCheck %s
; ModuleID = 'Preliminary.bc'
target datalayout = "e-p:64:64:64-i1:8:8-i8:8:8-i16:16:16-i32:32:32-i64:64:64-f32:32:32-f64:64:64-v64:64:64-v128:128:128-a0:0:64-s0:64:64-f80:128:128-n8:16:32:64-S128"
target triple = "x86_64-apple-macosx10.6.0"

3
test/Analysis/DependenceAnalysis/Propagating.ll
View File

@ -1,6 +1,5 @@
; RUN: opt < %s -analyze -basicaa -da -da-delinearize | FileCheck %s
; RUN: opt < %s -analyze -basicaa -da | FileCheck %s
; ModuleID = 'Propagating.bc'
target datalayout = "e-p:64:64:64-i1:8:8-i8:8:8-i16:16:16-i32:32:32-i64:64:64-f32:32:32-f64:64:64-v64:64:64-v128:128:128-a0:0:64-s0:64:64-f80:128:128-n8:16:32:64-S128"
target triple = "x86_64-apple-macosx10.6.0"

3
test/Analysis/DependenceAnalysis/Separability.ll
View File

@ -1,6 +1,5 @@
; RUN: opt < %s -analyze -basicaa -da -da-delinearize | FileCheck %s
; RUN: opt < %s -analyze -basicaa -da | FileCheck %s
; ModuleID = 'Separability.bc'
target datalayout = "e-p:64:64:64-i1:8:8-i8:8:8-i16:16:16-i32:32:32-i64:64:64-f32:32:32-f64:64:64-v64:64:64-v128:128:128-a0:0:64-s0:64:64-f80:128:128-n8:16:32:64-S128"
target triple = "x86_64-apple-macosx10.6.0"

3
test/Analysis/DependenceAnalysis/StrongSIV.ll
View File

@ -1,6 +1,5 @@
; RUN: opt < %s -analyze -basicaa -da -da-delinearize | FileCheck %s
; RUN: opt < %s -analyze -basicaa -da | FileCheck %s
; ModuleID = 'StrongSIV.bc'
target datalayout = "e-p:64:64:64-i1:8:8-i8:8:8-i16:16:16-i32:32:32-i64:64:64-f32:32:32-f64:64:64-v64:64:64-v128:128:128-a0:0:64-s0:64:64-f80:128:128-n8:16:32:64-S128"
target triple = "x86_64-apple-macosx10.6.0"

7
test/Analysis/DependenceAnalysis/SymbolicSIV.ll
View File

@ -1,6 +1,5 @@
; RUN: opt < %s -analyze -basicaa -da -da-delinearize | FileCheck %s
; RUN: opt < %s -analyze -basicaa -da | FileCheck %s
; ModuleID = 'SymbolicSIV.bc'
target datalayout = "e-p:64:64:64-i1:8:8-i8:8:8-i16:16:16-i32:32:32-i64:64:64-f32:32:32-f64:64:64-v64:64:64-v128:128:128-a0:0:64-s0:64:64-f80:128:128-n8:16:32:64-S128"
target triple = "x86_64-apple-macosx10.6.0"
@ -336,7 +335,7 @@ entry:
; CHECK-LABEL: symbolicsiv6
; CHECK: da analyze - none!
; CHECK: da analyze - flow [0|<]!
; CHECK: da analyze - none!
; CHECK: da analyze - confused!
; CHECK: da analyze - none!
; CHECK: da analyze - confused!
@ -385,7 +384,7 @@ entry:
br i1 %cmp1, label %for.end, label %for.body.preheader
; CHECK-LABEL: symbolicsiv7
; CHECK: da analyze - none!
; CHECK: da analyze - flow [0|<]!
; CHECK: da analyze - flow [<>]!
; CHECK: da analyze - confused!
; CHECK: da analyze - none!
; CHECK: da analyze - confused!

2
test/Transforms/LoopInterchange/interchange-insts-between-indvar.ll
View File

@ -1,4 +1,4 @@
; RUN: opt < %s -basicaa -da-delinearize -loop-interchange -verify-dom-info -verify-loop-info \
; RUN: opt < %s -basicaa -loop-interchange -verify-dom-info -verify-loop-info \
; RUN: -S -pass-remarks=loop-interchange 2>&1 | FileCheck %s
@A10 = local_unnamed_addr global [3 x [3 x i32]] zeroinitializer, align 16