[polly] r253050 - ScopInfo: Reset compute operations before starting compute out region

[Tobias Grosser via llvm-commits]

Author: grosser
Date: Fri Nov 13 10:56:13 2015
New Revision: 253050

URL: http://llvm.org/viewvc/llvm-project?rev=253050&view=rev
Log:
ScopInfo: Reset compute operations before starting compute out region

Without this change we may start to refuse scops in larger compilation units
just because a lot of code has already been compiled earlier.

Found by inspection. I do not yet have a good test case for this.

Modified:
    polly/trunk/lib/Analysis/ScopInfo.cpp

Modified: polly/trunk/lib/Analysis/ScopInfo.cpp
URL: http://llvm.org/viewvc/llvm-project/polly/trunk/lib/Analysis/ScopInfo.cpp?rev=253050&r1=253049&r2=253050&view=diff
==============================================================================
--- polly/trunk/lib/Analysis/ScopInfo.cpp (original)
+++ polly/trunk/lib/Analysis/ScopInfo.cpp Fri Nov 13 10:56:13 2015
@@ -1634,6 +1634,7 @@ void Scop::buildBoundaryContext() {
   // TODO: We can probably get around using isl_set_complement and directly
   // AST generate BoundaryContext.
   long MaxOpsOld = isl_ctx_get_max_operations(getIslCtx());
+  isl_ctx_reset_operations(getIslCtx());
   isl_ctx_set_max_operations(getIslCtx(), 300000);
   isl_options_set_on_error(getIslCtx(), ISL_ON_ERROR_CONTINUE);