[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-dep-neg-offset.ll b/llvm/test/CodeGen/Hexagon/swp-dep-neg-offset.ll
index c057210..7ba4286 100644
--- a/llvm/test/CodeGen/Hexagon/swp-dep-neg-offset.ll
+++ b/llvm/test/CodeGen/Hexagon/swp-dep-neg-offset.ll
@@ -1,4 +1,4 @@
-; RUN: llc -march=hexagon -enable-pipeliner < %s | FileCheck %s
+; RUN: llc -march=hexagon -enable-pipeliner -hexagon-initial-cfg-cleanup=0 < %s | FileCheck %s
; Test that the code that changes the dependences does not allow
; a load with a negative offset to be overlapped with the post