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3 Commits

Author SHA1 Message Date
Akira Hatanaka
8e8f03d803 Use option -march instead of -mtriple to avoid overconditionalizing the test. 
This fixes r234439, which was committed to fix the test failures caused by
r234430.

llvm-svn: 234451
 2015-04-08 23:02:45 +00:00
Akira Hatanaka
a1ad440430 Pass -mtriple to llc to appease buildbot. 
This fixes the test case I committed in r234430.

llvm-svn: 234439
 2015-04-08 21:30:48 +00:00
Akira Hatanaka
5d29050f58 [DAGCombine] Fix a bug in MergeConsecutiveStores. 
The bug manifests when there are two loads and two stores chained as follows in
a DAG,

(ld v3f32) -> (st f32) -> (ld v3f32) -> (st f32)

and the stores' values are extracted from the preceding vector loads.

MergeConsecutiveStores would replace the first store in the chain with the
merged vector store, which would create a cycle between the merged store node
and the last load node that appears in the chain.

This commits fixes the bug by replacing the last store in the chain instead.

rdar://problem/20275084

Differential Revision: http://reviews.llvm.org/D8849

llvm-svn: 234430
 2015-04-08 20:34:53 +00:00