4 Commits

Author	SHA1	Message	Date
Adam Nemet	e4e1de60aa	Revert "StructurizeCFG: Test for branch divergence correctly" ... This reverts commit r325881. Breaks many bots llvm-svn: 326037	2018-02-24 17:29:09 +00:00
Nicolai Haehnle	43c1115cd4	StructurizeCFG: Test for branch divergence correctly ... Summary: This fixes cases like the new test @nonuniform. In that test, %cc itself is a uniform value; however, when reading it after the end of the loop in basic block %if, its value is effectively non-uniform. This problem was encountered in https://bugs.freedesktop.org/show_bug.cgi?id=103743; however, this change in itself is not sufficient to fix that bug, as there is another issue in the AMDGPU backend. Change-Id: I32bbffece4a32f686fab54964dae1a5dd72949d4 Reviewers: arsenm, rampitec, jlebar Subscribers: wdng, tpr, llvm-commits Differential Revision: https://reviews.llvm.org/D40546 llvm-svn: 325881	2018-02-23 10:45:46 +00:00
Matt Arsenault	f42074b699	AMDGPU: Fix missing skipFunction calls ... llvm-svn: 315361	2017-10-10 20:48:36 +00:00
Matt Arsenault	d674e0ac0d	AMDGPU: Fix failure to select branch with optnone ... opt-bisect/optnone disable the AMDGPUUniformAnnotateValues pass. The heuristic in the custom selector for brcond deferred the branch uniformity check to the pattern, which would fail. llvm-svn: 315360	2017-10-10 20:34:49 +00:00