6462d8c1d9
This patch applies the restrictions on the number of domain conjuncts
also to the domain parts of piecewise affine expressions we generate.
To this end the wording is change slightly. It was needed to support
complex additions featuring zext-instructions but it also fixes PR27045.
lnt profitable runs reports only little changes that might be noise:
Compile Time:
Polybench/[...]/2mm +4.34%
SingleSource/[...]/stepanov_container -2.43%
Execution Time:
External/[...]/186_crafty -2.32%
External/[...]/188_ammp -1.89%
External/[...]/473_astar -1.87%
llvm-svn: 264514
143 lines
7.4 KiB
LLVM
143 lines
7.4 KiB
LLVM
; RUN: opt %loadPolly -pass-remarks-analysis="polly-scops" -polly-scops \
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; RUN: < %s 2>&1 | FileCheck %s
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;
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; This test case has an SCEVSMax expression with a very high arity. The
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; piecewise affine function we would create for it would have a huge amount of
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; conjuncts, thus it would take a lot of time creating and handling it.
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;
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; This ensures we bail out for really complex expressions:
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;
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; CHECK: Low complexity assumption: { : 1 = 0 }
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;
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target datalayout = "e-m:e-p:32:32-i64:64-v128:64:128-a:0:32-n32-S64"
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; Function Attrs: norecurse nounwind
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define i32 @foo(i32* nocapture readonly %src1, i32* nocapture readonly %src2, i32* nocapture %score, i32* nocapture %max, i32 %n) #0 {
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entry:
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%cmp33 = icmp sgt i32 %n, 0
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br i1 %cmp33, label %for.body.preheader, label %for.body7.preheader
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for.body.preheader: ; preds = %entry
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br label %for.body
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for.body7.preheader.loopexit: ; preds = %for.body
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br label %for.body7.preheader
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for.body7.preheader: ; preds = %for.body7.preheader.loopexit, %entry
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%0 = load i32, i32* %score, align 4, !tbaa !3
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%cmp9 = icmp sgt i32 %0, -1
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%.scoreMax.0 = select i1 %cmp9, i32 %0, i32 -1
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%arrayidx8.1 = getelementptr inbounds i32, i32* %score, i32 1
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%1 = load i32, i32* %arrayidx8.1, align 4, !tbaa !3
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%cmp9.1 = icmp sgt i32 %1, %.scoreMax.0
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%.scoreMax.0.1 = select i1 %cmp9.1, i32 %1, i32 %.scoreMax.0
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%arrayidx8.2 = getelementptr inbounds i32, i32* %score, i32 2
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%2 = load i32, i32* %arrayidx8.2, align 4, !tbaa !3
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%cmp9.2 = icmp sgt i32 %2, %.scoreMax.0.1
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%.scoreMax.0.2 = select i1 %cmp9.2, i32 %2, i32 %.scoreMax.0.1
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%arrayidx8.3 = getelementptr inbounds i32, i32* %score, i32 3
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%3 = load i32, i32* %arrayidx8.3, align 4, !tbaa !3
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%cmp9.3 = icmp sgt i32 %3, %.scoreMax.0.2
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%.scoreMax.0.3 = select i1 %cmp9.3, i32 %3, i32 %.scoreMax.0.2
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%arrayidx8.4 = getelementptr inbounds i32, i32* %score, i32 4
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%4 = load i32, i32* %arrayidx8.4, align 4, !tbaa !3
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%cmp9.4 = icmp sgt i32 %4, %.scoreMax.0.3
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%.scoreMax.0.4 = select i1 %cmp9.4, i32 %4, i32 %.scoreMax.0.3
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%arrayidx8.5 = getelementptr inbounds i32, i32* %score, i32 5
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%5 = load i32, i32* %arrayidx8.5, align 4, !tbaa !3
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%cmp9.5 = icmp sgt i32 %5, %.scoreMax.0.4
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%.scoreMax.0.5 = select i1 %cmp9.5, i32 %5, i32 %.scoreMax.0.4
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%arrayidx8.6 = getelementptr inbounds i32, i32* %score, i32 6
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%6 = load i32, i32* %arrayidx8.6, align 4, !tbaa !3
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%cmp9.6 = icmp sgt i32 %6, %.scoreMax.0.5
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%.scoreMax.0.6 = select i1 %cmp9.6, i32 %6, i32 %.scoreMax.0.5
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%arrayidx8.7 = getelementptr inbounds i32, i32* %score, i32 7
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%7 = load i32, i32* %arrayidx8.7, align 4, !tbaa !3
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%cmp9.7 = icmp sgt i32 %7, %.scoreMax.0.6
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%.scoreMax.0.7 = select i1 %cmp9.7, i32 %7, i32 %.scoreMax.0.6
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%arrayidx8.8 = getelementptr inbounds i32, i32* %score, i32 8
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%8 = load i32, i32* %arrayidx8.8, align 4, !tbaa !3
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%cmp9.8 = icmp sgt i32 %8, %.scoreMax.0.7
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%.scoreMax.0.8 = select i1 %cmp9.8, i32 %8, i32 %.scoreMax.0.7
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%arrayidx8.9 = getelementptr inbounds i32, i32* %score, i32 9
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%9 = load i32, i32* %arrayidx8.9, align 4, !tbaa !3
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%cmp9.9 = icmp sgt i32 %9, %.scoreMax.0.8
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%.scoreMax.0.9 = select i1 %cmp9.9, i32 %9, i32 %.scoreMax.0.8
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%arrayidx8.10 = getelementptr inbounds i32, i32* %score, i32 10
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%10 = load i32, i32* %arrayidx8.10, align 4, !tbaa !3
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%cmp9.10 = icmp sgt i32 %10, %.scoreMax.0.9
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%.scoreMax.0.10 = select i1 %cmp9.10, i32 %10, i32 %.scoreMax.0.9
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%arrayidx8.11 = getelementptr inbounds i32, i32* %score, i32 11
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%11 = load i32, i32* %arrayidx8.11, align 4, !tbaa !3
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%cmp9.11 = icmp sgt i32 %11, %.scoreMax.0.10
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%.scoreMax.0.11 = select i1 %cmp9.11, i32 %11, i32 %.scoreMax.0.10
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%arrayidx8.12 = getelementptr inbounds i32, i32* %score, i32 12
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%12 = load i32, i32* %arrayidx8.12, align 4, !tbaa !3
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%cmp9.12 = icmp sgt i32 %12, %.scoreMax.0.11
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%.scoreMax.0.12 = select i1 %cmp9.12, i32 %12, i32 %.scoreMax.0.11
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%arrayidx8.13 = getelementptr inbounds i32, i32* %score, i32 13
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%13 = load i32, i32* %arrayidx8.13, align 4, !tbaa !3
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%cmp9.13 = icmp sgt i32 %13, %.scoreMax.0.12
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%.scoreMax.0.13 = select i1 %cmp9.13, i32 %13, i32 %.scoreMax.0.12
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%arrayidx8.14 = getelementptr inbounds i32, i32* %score, i32 14
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%14 = load i32, i32* %arrayidx8.14, align 4, !tbaa !3
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%cmp9.14 = icmp sgt i32 %14, %.scoreMax.0.13
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%.scoreMax.0.14 = select i1 %cmp9.14, i32 %14, i32 %.scoreMax.0.13
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%arrayidx8.15 = getelementptr inbounds i32, i32* %score, i32 15
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%15 = load i32, i32* %arrayidx8.15, align 4, !tbaa !3
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%cmp9.15 = icmp sgt i32 %15, %.scoreMax.0.14
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%.scoreMax.0.15 = select i1 %cmp9.15, i32 %15, i32 %.scoreMax.0.14
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%arrayidx8.16 = getelementptr inbounds i32, i32* %score, i32 16
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%16 = load i32, i32* %arrayidx8.16, align 4, !tbaa !3
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%cmp9.16 = icmp sgt i32 %16, %.scoreMax.0.15
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%.scoreMax.0.16 = select i1 %cmp9.16, i32 %16, i32 %.scoreMax.0.15
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%arrayidx8.17 = getelementptr inbounds i32, i32* %score, i32 17
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%17 = load i32, i32* %arrayidx8.17, align 4, !tbaa !3
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%cmp9.17 = icmp sgt i32 %17, %.scoreMax.0.16
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%.scoreMax.0.17 = select i1 %cmp9.17, i32 %17, i32 %.scoreMax.0.16
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%arrayidx8.18 = getelementptr inbounds i32, i32* %score, i32 18
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%18 = load i32, i32* %arrayidx8.18, align 4, !tbaa !3
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%cmp9.18 = icmp sgt i32 %18, %.scoreMax.0.17
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%.scoreMax.0.18 = select i1 %cmp9.18, i32 %18, i32 %.scoreMax.0.17
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%arrayidx8.19 = getelementptr inbounds i32, i32* %score, i32 19
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%19 = load i32, i32* %arrayidx8.19, align 4, !tbaa !3
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%cmp9.19 = icmp sgt i32 %19, %.scoreMax.0.18
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%.scoreMax.0.19 = select i1 %cmp9.19, i32 %19, i32 %.scoreMax.0.18
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%cmp14 = icmp eq i32 %.scoreMax.0.19, -1
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br i1 %cmp14, label %cleanup, label %if.end16
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for.body: ; preds = %for.body.preheader, %for.body
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%i.034 = phi i32 [ %inc, %for.body ], [ 0, %for.body.preheader ]
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%arrayidx = getelementptr inbounds i32, i32* %src1, i32 %i.034
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%20 = load i32, i32* %arrayidx, align 4, !tbaa !3
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%arrayidx1 = getelementptr inbounds i32, i32* %src2, i32 %i.034
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%21 = load i32, i32* %arrayidx1, align 4, !tbaa !3
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%add = add nsw i32 %21, %20
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%arrayidx2 = getelementptr inbounds i32, i32* %score, i32 %i.034
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store i32 %add, i32* %arrayidx2, align 4, !tbaa !3
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%inc = add nuw nsw i32 %i.034, 1
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%exitcond = icmp eq i32 %inc, %n
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br i1 %exitcond, label %for.body7.preheader.loopexit, label %for.body
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if.end16: ; preds = %for.body7.preheader
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store i32 %.scoreMax.0.19, i32* %max, align 4, !tbaa !3
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br label %cleanup
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cleanup: ; preds = %for.body7.preheader, %if.end16
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%retval.0 = phi i32 [ 1, %if.end16 ], [ 0, %for.body7.preheader ]
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ret i32 %retval.0
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}
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attributes #0 = { norecurse nounwind "disable-tail-calls"="false" "less-precise-fpmad"="false" "no-frame-pointer-elim"="true" "no-frame-pointer-elim-non-leaf" "no-infs-fp-math"="false" "no-nans-fp-math"="false" "stack-protector-buffer-size"="8" "target-cpu"="arm7tdmi" "target-features"="+strict-align" "unsafe-fp-math"="false" "use-soft-float"="false" }
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!llvm.module.flags = !{!0, !1}
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!llvm.ident = !{!2}
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!0 = !{i32 1, !"wchar_size", i32 4}
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!1 = !{i32 1, !"min_enum_size", i32 4}
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!2 = !{!"clang version 3.9.0 (http://llvm.org/git/clang.git 24028ac5d033be4c1e87ce65affb4ea61deb1897) (http://llvm.org/git/llvm.git b88337289681d6ede5bba5da77007c83509e54ae)"}
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!3 = !{!4, !4, i64 0}
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!4 = !{!"int", !5, i64 0}
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!5 = !{!"omnipotent char", !6, i64 0}
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!6 = !{!"Simple C/C++ TBAA"}
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