f4ee371e60
These flags are now always passed to all tests and need to be disabled if not needed. Disabling these flags, rather than passing them to almost all tests, significantly simplfies our RUN: lines. llvm-svn: 249422
93 lines
2.7 KiB
LLVM
93 lines
2.7 KiB
LLVM
; RUN: opt %loadPolly -polly-detect -analyze < %s | FileCheck %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"
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; Two sequential loops right after each other.
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;
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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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; for (i = 0; i < N; ++i)
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; A[i] = i;
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; }
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define void @f1(i64* %A, i64 %N) nounwind {
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; CHECK-LABEL: 'Polly - Detect static control parts (SCoPs)' for function 'f1'
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entry:
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fence seq_cst
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br label %for.i.1
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for.i.1:
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%indvar = phi i64 [ 0, %entry ], [ %indvar.next, %for.i.1 ]
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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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%exitcond = icmp eq i64 %indvar.next, %N
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br i1 %exitcond, label %for.i.2, label %for.i.1
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for.i.2:
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%indvar.2 = phi i64 [ 0, %for.i.1 ], [ %indvar.next.2, %for.i.2 ]
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%scevgep.2 = getelementptr i64, i64* %A, i64 %indvar.2
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store i64 %indvar.2, i64* %scevgep.2
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%indvar.next.2 = add nsw i64 %indvar.2, 1
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%exitcond.2 = icmp eq i64 %indvar.next.2, %N
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br i1 %exitcond.2, label %return, label %for.i.2
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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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; C-H-E-C-K: Valid Region for Scop: for.i.1 => return
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; This one is currently not completely detected due to the PHI node in
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; for.i.2 causing a 'PHI node in exit BB' error for the first loop. This should
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; be fixed at some point. Such test cases do not really show up for us, as
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; the -loop-simplify pass always inserts a preheader as in the test case below.
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; Two sequential loops with a basic block in between.
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;
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; void f(long A[], long N) {
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; long i;
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;
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; for (i = 0; i < N; ++i)
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; A[i] = i;
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; preheader:
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; ;
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;
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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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define void @f2(i64* %A, i64 %N) nounwind {
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; CHECK-LABEL: 'Polly - Detect static control parts (SCoPs)' for function 'f2'
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entry:
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fence seq_cst
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br label %for.i.1
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for.i.1:
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%indvar = phi i64 [ 0, %entry ], [ %indvar.next, %for.i.1 ]
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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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%exitcond = icmp eq i64 %indvar.next, %N
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br i1 %exitcond, label %preheader, label %for.i.1
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preheader:
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br label %for.i.2
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for.i.2:
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%indvar.2 = phi i64 [ 0, %preheader ], [ %indvar.next.2, %for.i.2 ]
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%scevgep.2 = getelementptr i64, i64* %A, i64 %indvar.2
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store i64 %indvar.2, i64* %scevgep.2
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%indvar.next.2 = add nsw i64 %indvar.2, 1
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%exitcond.2 = icmp eq i64 %indvar.next.2, %N
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br i1 %exitcond.2, label %return, label %for.i.2
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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: for.i.1 => return
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