Sameer Sahasrabuddhe 8c11bc0cd0 Introduce fix-irreducible pass ... An irreducible SCC is one which has multiple "header" blocks, i.e., blocks with control-flow edges incident from outside the SCC. This pass converts an irreducible SCC into a natural loop by introducing a single new header block and redirecting all the edges on the original headers to this new block. This is a useful workaround for a limitation in the structurizer which, which produces incorrect control flow in the presence of irreducible regions. The AMDGPU backend provides an option to enable this pass before the structurizer, which may eventually be enabled by default. Reviewed By: nhaehnle Differential Revision: https://reviews.llvm.org/D77198 This restores commit 2ada8e2525. Originally reverted with commit 44e09b59b8.		2020-04-15 15:05:51 +05:30
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AMDGPU	StructurizeCFG: simplify phi nodes when possible	2020-03-05 10:33:15 +05:30
workarounds	Introduce fix-irreducible pass	2020-04-15 15:05:51 +05:30
branch-on-argument.ll	…
bug36015.ll	…
invert-condition.ll	…
invert-constantexpr.ll	…
loop-continue-phi.ll	…
loop-multiple-exits.ll	…
nested-loop-order.ll	…
no-branch-to-entry.ll	…
one-loop-multiple-backedges.ll	…
post-order-traversal-bug.ll	…
rebuild-ssa-infinite-loop.ll	AMDGPU: Update more tests to use modern buffer intrinsics	2020-01-16 14:29:38 -05:00
switch.ll	…