[ScopBuilder] Make -polly-stmt-granularity=scalar-indep the default.

Splitting basic blocks into multiple statements if there are now
additional scalar dependencies gives more freedom to the scheduler, but
more statements also means higher compile-time complexity. Switch to
finer statement granularity, the additional compile time should be
limited by the number of operations quota.

The regression tests are written for the -polly-stmt-granularity=bb
setting, therefore we add that flag to those tests that break with the
new default. Some of the tests only fail because the statements are
named differently due to a basic block resulting in multiple statements,
but which are removed during simplification of statements without
side-effects. Previous commits tried to reduce this effect, but it is
not completely avoidable.

Differential Revision: https://reviews.llvm.org/D42151

llvm-svn: 324169

1 files changed, 1 insertions, 1 deletions

diff --git a/polly/test/Isl/CodeGen/OpenMP/mapped-phi-access.ll b/polly/test/Isl/CodeGen/OpenMP/mapped-phi-access.ll
index 5968840136e..6d93257e025 100644
--- a/polly/test/Isl/CodeGen/OpenMP/mapped-phi-access.ll
+++ b/polly/test/Isl/CodeGen/OpenMP/mapped-phi-access.ll
@@ -1,4 +1,4 @@
-; RUN: opt %loadPolly -polly-parallel -polly-delicm -polly-codegen -S < %s | FileCheck %s
+; RUN: opt %loadPolly -polly-stmt-granularity=bb -polly-parallel -polly-delicm -polly-codegen -S < %s | FileCheck %s
 ;
 ; Verify that -polly-parallel can handle mapped scalar MemoryAccesses.
 ;