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author | Tobias Grosser <tobias@grosser.es> | 2014-06-08 19:21:20 +0000 |
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committer | Tobias Grosser <tobias@grosser.es> | 2014-06-08 19:21:20 +0000 |
commit | 5e66eea5ba25c8d6406a456113dfa352919f3d19 (patch) | |
tree | 412eb47ae816389c8b363a12dbe96985dd6f73cb /test/Analysis | |
parent | 62dd1181350947670d6cfe0d338c63322d45cef0 (diff) | |
download | llvm-5e66eea5ba25c8d6406a456113dfa352919f3d19.tar.gz llvm-5e66eea5ba25c8d6406a456113dfa352919f3d19.tar.bz2 llvm-5e66eea5ba25c8d6406a456113dfa352919f3d19.tar.xz |
ScalarEvolution: Derive element size from the type of the loaded element
Before, we where looking at the size of the pointer type that specifies the
location from which to load the element. This did not make any sense at all.
This change fixes a bug in the delinearization where we failed to delinerize
certain load instructions.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@210435 91177308-0d34-0410-b5e6-96231b3b80d8
Diffstat (limited to 'test/Analysis')
-rw-r--r-- | test/Analysis/Delinearization/multidim_only_ivs_2d.ll | 12 |
1 files changed, 11 insertions, 1 deletions
diff --git a/test/Analysis/Delinearization/multidim_only_ivs_2d.ll b/test/Analysis/Delinearization/multidim_only_ivs_2d.ll index 48bec08190..5a88c4ce4e 100644 --- a/test/Analysis/Delinearization/multidim_only_ivs_2d.ll +++ b/test/Analysis/Delinearization/multidim_only_ivs_2d.ll @@ -8,6 +8,15 @@ ; A[i][j] = 1.0; ; } +; Inst: %val = load double* %arrayidx +; In Loop with Header: for.j +; AddRec: {{0,+,(%m * sizeof(double))}<%for.i>,+,sizeof(double)}<%for.j> +; Base offset: %A +; ArrayDecl[UnknownSize][%m] with elements of sizeof(double) bytes. +; ArrayRef[{0,+,1}<nuw><nsw><%for.i>][{0,+,1}<nuw><nsw><%for.j>] + +; Inst: store double %val, double* %arrayidx +; In Loop with Header: for.j ; AddRec: {{%A,+,(8 * %m)}<%for.i>,+,8}<%for.j> ; CHECK: Base offset: %A ; CHECK: ArrayDecl[UnknownSize][%m] with elements of sizeof(double) bytes. @@ -26,7 +35,8 @@ for.j: %j = phi i64 [ 0, %for.i ], [ %j.inc, %for.j ] %vlaarrayidx.sum = add i64 %j, %tmp %arrayidx = getelementptr inbounds double* %A, i64 %vlaarrayidx.sum - store double 1.0, double* %arrayidx + %val = load double* %arrayidx + store double %val, double* %arrayidx %j.inc = add nsw i64 %j, 1 %j.exitcond = icmp eq i64 %j.inc, %m br i1 %j.exitcond, label %for.i.inc, label %for.j |