Paul Robinson dbdbe63b4a Merging r233153 and r233584: ...

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r233153 | probinson | 2015-03-24 17:10:24 -0700 (Tue, 24 Mar 2015) | 7 lines

'optnone' should not disable DAG combiner.

Reverts the code change from r221168 and the relevant test.
It was a mistake to disable the combiner, and based on the ultimate
definition of 'optnone' we shouldn't have considered the test case
as failing in the first place.

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r233584 | probinson | 2015-03-30 12:37:44 -0700 (Mon, 30 Mar 2015) | 9 lines

Verify 'optnone' can run DAG combiner when appropriate.

Adds a test to verify the behavior that r233153 restored: 'optnone'
does not spuriously disable the DAG combiner, and in fact there are
cases where the DAG combiner must run (even at -O0 or 'optnone') in
order for codegen to succeed.

Differential Revision: http://reviews.llvm.org/D8614

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git-svn-id: https://llvm.org/svn/llvm-project/llvm/branches/release_36@233871 91177308-0d34-0410-b5e6-96231b3b80d8

2015-04-02 00:15:35 +00:00

485 KiB

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