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Explain what this pass does.

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llvm-svn: 17146
This commit is contained in:
Brian Gaeke 2004-10-20 19:38:58 +00:00
parent 0ba9295e3c
commit 71ff3efdd5
1 changed files with 7 additions and 1 deletions
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8
lib/Transforms/Instrumentation/EmitFunctions.cpp
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@ -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.
//