summaryrefslogtreecommitdiff
path: root/lib/Transforms/Instrumentation
diff options
context:
space:
mode:
authorBrian Gaeke <gaeke@uiuc.edu>2004-10-20 19:38:58 +0000
committerBrian Gaeke <gaeke@uiuc.edu>2004-10-20 19:38:58 +0000
commita30dd79be8d76e8571557fd4524b6201e21a83c7 (patch)
tree4d7ac79dae593b9a387a5f8c70c1a5d822b76550 /lib/Transforms/Instrumentation
parent57bbfcec9172face0ffca2c1922d57d3d140bd43 (diff)
downloadllvm-a30dd79be8d76e8571557fd4524b6201e21a83c7.tar.gz
llvm-a30dd79be8d76e8571557fd4524b6201e21a83c7.tar.bz2
llvm-a30dd79be8d76e8571557fd4524b6201e21a83c7.tar.xz
Explain what this pass does.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@17146 91177308-0d34-0410-b5e6-96231b3b80d8
Diffstat (limited to 'lib/Transforms/Instrumentation')
-rw-r--r--lib/Transforms/Instrumentation/EmitFunctions.cpp8
1 files changed, 7 insertions, 1 deletions
diff --git a/lib/Transforms/Instrumentation/EmitFunctions.cpp b/lib/Transforms/Instrumentation/EmitFunctions.cpp
index 7b624ad007..a12f57de9a 100644
--- a/lib/Transforms/Instrumentation/EmitFunctions.cpp
+++ b/lib/Transforms/Instrumentation/EmitFunctions.cpp
@@ -7,7 +7,13 @@
//
//===----------------------------------------------------------------------===//
//
-// This inserts a global constant table with function pointers all along.
+// This inserts into the input module three new global constants containing
+// mapping information pertinent to the Reoptimizer's runtime library:
+// 1) a structure containing a pointer to each function;
+// 2) an array containing a boolean which is true iff the corresponding
+// function in 1) contains a back-edge branch suitable for the Reoptimizer's
+// first-level instrumentation;
+// 3) an integer containing the number of entries in 1) and 2).
//
// NOTE: This pass is used by the reoptimizer only.
//