b5f92892d1
We now support regions with multiple entries and multiple exits natively. Regions are not needed to be simplified to single entry and single exit. We need to XFAIL two test cases as this change increases the scop coverage and uncoveres two failures in the independent blocks pass. The first failure will be fixed in a subsequent commit, the second one is in the non-default -polly-codegen-scev mode and still needs to be fixed. Contributed-by: Star Tan <tanmx_star@yeah.net> llvm-svn: 179673
46 lines
1.2 KiB
LLVM
46 lines
1.2 KiB
LLVM
; RUN: opt %loadPolly -polly-detect -analyze < %s | FileCheck %s
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; RUN: opt %loadPolly -polly-detect -polly-codegen-isl -analyze < %s | FileCheck %s
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; void f(long A[], long N) {
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; long i, j;
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; if (true)
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; for (j = 0; j < N; ++j)
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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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target triple = "x86_64-unknown-linux-gnu"
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define void @f(i64* %A, i64 %N) nounwind {
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entry:
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fence seq_cst
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br label %next
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next:
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br i1 true, label %for.j, label %return
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for.j:
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%j.015 = phi i64 [ %inc5, %for.inc8 ], [ 0, %next ]
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br label %for.i
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for.i:
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%indvar = phi i64 [ 0, %for.j], [ %indvar.next, %for.i ]
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%scevgep = getelementptr 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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%exitcond = icmp eq i64 %indvar.next, %N
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br i1 %exitcond, label %for.inc8, label %for.i
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for.inc8: ; preds = %for.body3
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%inc5 = add nsw i64 %j.015, 1
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%exitcond16 = icmp eq i64 %inc5, %N
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br i1 %exitcond16, label %return, label %for.j
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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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; CHECK: Valid Region for Scop: next => return
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