af4e809ca6
This removes old code that has been disabled since several weeks and was hidden behind the flags -disable-polly-intra-scop-scalar-to-array=false and -polly-model-phi-nodes=false. Earlier, Polly used to translate scalars and PHI nodes to single element arrays, as this avoided the need for their special handling in Polly. With Johannes' patches adding native support for such scalar references to Polly, this code is not needed any more. After this commit both -polly-prepare and -polly-independent are now mostly no-ops. Only a couple of simple transformations still remain, but they are scheduled for removal too. Thanks again to Johannes Doerfert for his nice work in making all this code obsolete. llvm-svn: 240766
43 lines
1.2 KiB
LLVM
43 lines
1.2 KiB
LLVM
; RUN: opt %loadPolly -polly-detect-unprofitable -polly-detect -analyze < %s | FileCheck %s -check-prefix=PHI
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; void f(long A[], long N) {
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; long i;
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; for (i = 0; i < N; ++i)
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; A[i] = i;
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; }
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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"
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define void @f(i64* %A, i64 %N, i64 %p) nounwind {
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entry:
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fence seq_cst
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br label %pre
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pre:
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%p_tmp = srem i64 %p, 5
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br i1 true, label %for.i, label %then
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for.i:
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%indvar = phi i64 [ 0, %pre ], [ %indvar.next, %for.i ]
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%indvar.p1 = phi i64 [ 0, %pre ], [ %indvar.p1.next, %for.i ]
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%indvar.p2 = phi i64 [ 0, %pre ], [ %indvar.p2.next, %for.i ]
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%sum = add i64 %indvar, %indvar.p1
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%sum2 = sub i64 %sum, %indvar.p2
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%scevgep = getelementptr i64, i64* %A, i64 %indvar
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store i64 %indvar, i64* %scevgep
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%indvar.next = add nsw i64 %indvar, 1
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%indvar.p1.next = add nsw i64 %indvar.p1, %p_tmp
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%indvar.p2.next = add nsw i64 %indvar.p2, %p_tmp
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%exitcond = icmp eq i64 %sum2, %N
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br i1 %exitcond, label %then, label %for.i
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then:
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br label %return
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return:
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fence seq_cst
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ret void
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}
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; PHI: Valid Region for Scop: pre => return
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