7086025d65
Patch by Artem Radzikhovskyy! Allow delinearization of fixed sized arrays if we can prove that the GEP indices do not overflow the array dimensions. The checks applied are similar to the ones that are used for delinearization of parametric size arrays. Make sure that the GEP indices are non-negative and that they are smaller than the range of that dimension. Changes Summary: - Updated the LIT tests with more exact values, as we are able to delinearize and apply more exact tests - profitability.ll - now able to delinearize in all cases, no need to use -da-disable-delinearization-checks flag and run the test twice - loop-interchange-optimization-remarks.ll - in one of the cases we are able to delinearize without using -da-disable-delinearization-checks - SimpleSIVNoValidityCheckFixedSize.ll - removed unnecessary "-da-disable-delinearization-checks" flag. Now can get the exact answer without it. - SimpleSIVNoValidityCheckFixedSize.ll and PreliminaryNoValidityCheckFixedSize.ll - made negative tests more explicit, in order to demonstrate the need for "-da-disable-delinearization-checks" flag Differential Revision: https://reviews.llvm.org/D101486
117 lines
5.2 KiB
LLVM
117 lines
5.2 KiB
LLVM
; RUN: opt < %s -disable-output "-passes=print<da>" -aa-pipeline=basic-aa 2>&1 \
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; RUN: -da-disable-delinearization-checks | FileCheck %s
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; RUN: opt < %s -disable-output "-passes=print<da>" -aa-pipeline=basic-aa 2>&1 \
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; RUN: | FileCheck --check-prefix=LIN %s
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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"
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target triple = "x86_64-apple-macosx10.6.0"
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;; for (long int i = 0; i < n; i++) {
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;; for (long int j = 0; j < n; j++) {
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;; for (long int k = 0; k < n; k++) {
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;; A[i][j][k] = i;
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;; }
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;; for (long int k = 0; k < n; k++) {
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;; *B++ = A[i + 3][j + 2][k + 1];
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define void @p2(i64 %n, [100 x [100 x i64]]* %A, i64* %B) nounwind uwtable ssp {
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entry:
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%cmp10 = icmp sgt i64 %n, 0
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br i1 %cmp10, label %for.cond1.preheader.preheader, label %for.end26
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; CHECK-LABEL: p2
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; CHECK: da analyze - none!
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; CHECK: da analyze - flow [-3 -2]!
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; CHECK: da analyze - confused!
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; CHECK: da analyze - none!
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; CHECK: da analyze - confused!
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; CHECK: da analyze - output [* * *]!
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; LIN-LABEL: p2
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; LIN: da analyze - output [* * *]!
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; LIN: da analyze - flow [* *|<]!
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; LIN: da analyze - confused!
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; LIN: da analyze - input [* * *]!
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; LIN: da analyze - confused!
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; LIN: da analyze - output [* * *]!
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for.cond1.preheader.preheader: ; preds = %entry
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br label %for.cond1.preheader
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for.cond1.preheader: ; preds = %for.cond1.preheader.preheader, %for.inc24
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%B.addr.012 = phi i64* [ %B.addr.1.lcssa, %for.inc24 ], [ %B, %for.cond1.preheader.preheader ]
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%i.011 = phi i64 [ %inc25, %for.inc24 ], [ 0, %for.cond1.preheader.preheader ]
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%cmp26 = icmp sgt i64 %n, 0
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br i1 %cmp26, label %for.cond4.preheader.preheader, label %for.inc24
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for.cond4.preheader.preheader: ; preds = %for.cond1.preheader
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br label %for.cond4.preheader
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for.cond4.preheader: ; preds = %for.cond4.preheader.preheader, %for.inc21
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%B.addr.18 = phi i64* [ %B.addr.2.lcssa, %for.inc21 ], [ %B.addr.012, %for.cond4.preheader.preheader ]
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%j.07 = phi i64 [ %inc22, %for.inc21 ], [ 0, %for.cond4.preheader.preheader ]
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%cmp51 = icmp sgt i64 %n, 0
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br i1 %cmp51, label %for.body6.preheader, label %for.cond10.loopexit
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for.body6.preheader: ; preds = %for.cond4.preheader
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br label %for.body6
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for.body6: ; preds = %for.body6.preheader, %for.body6
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%k.02 = phi i64 [ %inc, %for.body6 ], [ 0, %for.body6.preheader ]
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%arrayidx8 = getelementptr inbounds [100 x [100 x i64]], [100 x [100 x i64]]* %A, i64 %i.011, i64 %j.07, i64 %k.02
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store i64 %i.011, i64* %arrayidx8, align 8
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%inc = add nsw i64 %k.02, 1
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%exitcond13 = icmp ne i64 %inc, %n
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br i1 %exitcond13, label %for.body6, label %for.cond10.loopexit.loopexit
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for.cond10.loopexit.loopexit: ; preds = %for.body6
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br label %for.cond10.loopexit
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for.cond10.loopexit: ; preds = %for.cond10.loopexit.loopexit, %for.cond4.preheader
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%cmp113 = icmp sgt i64 %n, 0
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br i1 %cmp113, label %for.body12.preheader, label %for.inc21
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for.body12.preheader: ; preds = %for.cond10.loopexit
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br label %for.body12
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for.body12: ; preds = %for.body12.preheader, %for.body12
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%k9.05 = phi i64 [ %inc19, %for.body12 ], [ 0, %for.body12.preheader ]
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%B.addr.24 = phi i64* [ %incdec.ptr, %for.body12 ], [ %B.addr.18, %for.body12.preheader ]
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%add = add nsw i64 %k9.05, 1
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%add13 = add nsw i64 %j.07, 2
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%add14 = add nsw i64 %i.011, 3
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%arrayidx17 = getelementptr inbounds [100 x [100 x i64]], [100 x [100 x i64]]* %A, i64 %add14, i64 %add13, i64 %add
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%0 = load i64, i64* %arrayidx17, align 8
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%incdec.ptr = getelementptr inbounds i64, i64* %B.addr.24, i64 1
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store i64 %0, i64* %B.addr.24, align 8
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%inc19 = add nsw i64 %k9.05, 1
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%exitcond = icmp ne i64 %inc19, %n
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br i1 %exitcond, label %for.body12, label %for.inc21.loopexit
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for.inc21.loopexit: ; preds = %for.body12
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%scevgep = getelementptr i64, i64* %B.addr.18, i64 %n
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br label %for.inc21
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for.inc21: ; preds = %for.inc21.loopexit, %for.cond10.loopexit
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%B.addr.2.lcssa = phi i64* [ %B.addr.18, %for.cond10.loopexit ], [ %scevgep, %for.inc21.loopexit ]
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%inc22 = add nsw i64 %j.07, 1
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%exitcond14 = icmp ne i64 %inc22, %n
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br i1 %exitcond14, label %for.cond4.preheader, label %for.inc24.loopexit
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for.inc24.loopexit: ; preds = %for.inc21
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%B.addr.2.lcssa.lcssa = phi i64* [ %B.addr.2.lcssa, %for.inc21 ]
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br label %for.inc24
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for.inc24: ; preds = %for.inc24.loopexit, %for.cond1.preheader
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%B.addr.1.lcssa = phi i64* [ %B.addr.012, %for.cond1.preheader ], [ %B.addr.2.lcssa.lcssa, %for.inc24.loopexit ]
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%inc25 = add nsw i64 %i.011, 1
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%exitcond15 = icmp ne i64 %inc25, %n
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br i1 %exitcond15, label %for.cond1.preheader, label %for.end26.loopexit
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for.end26.loopexit: ; preds = %for.inc24
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br label %for.end26
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for.end26: ; preds = %for.end26.loopexit, %entry
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ret void
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}
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