[Hexagon] Simplify CFG after atomic expansion
This will remove suboptimal branching from the generated ll/sc loops.
The extra simplification pass affects a lot of testcases, which have
been modified to accommodate this change: either by modifying the
test to become immune to the CFG simplification, or (less preferablt)
by adding option -hexagon-initial-cfg-clenaup=0.
llvm-svn: 338774
diff --git a/llvm/test/CodeGen/Hexagon/swp-loop-carried-unknown.ll b/llvm/test/CodeGen/Hexagon/swp-loop-carried-unknown.ll
index 3f8abf0..b95e624 100644
--- a/llvm/test/CodeGen/Hexagon/swp-loop-carried-unknown.ll
+++ b/llvm/test/CodeGen/Hexagon/swp-loop-carried-unknown.ll
@@ -1,4 +1,4 @@
-; RUN: llc -march=hexagon < %s | FileCheck %s
+; RUN: llc -march=hexagon -hexagon-initial-cfg-cleanup=0 < %s | FileCheck %s
; Test that the pipeliner schedules a store before the load in which there is a
; loop carried dependence. Previously, the loop carried dependence wasn't added