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BlockGenerators: Allow values to be removed from ScalarMap

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This function is not yet used in Polly, but is useful to external projects that
generate multi-module code using Polly.

llvm-svn: 262010
This commit is contained in:
Tobias Grosser
2016-02-26 13:27:02 +00:00
parent 64ca00c344
commit f8746fc88e
1 changed files with 11 additions and 0 deletions
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11
polly/include/polly/CodeGen/BlockGenerators.h
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@@ -111,6 +111,17 @@ public:
/// GlobalMap.
Value *getOrCreateScalarAlloca(Value *ScalarBase);
/// @brief Remove a Value's allocation from the ScalarMap.
///
/// This function allows to remove values from the ScalarMap. This is useful
/// if the corresponding alloca instruction will be deleted (or moved into
/// another module), as without removing these values the underlying
/// AssertingVH will trigger due to us still keeping reference to this
/// scalar.
///
/// @param ScalarBase The value to remove.
void freeScalarAlloc(Value *ScalarBase) { ScalarMap.erase(ScalarBase); }
/// @brief Return the PHi-node alloca for @p ScalarBase
///
/// If no alloca was mapped to @p ScalarBase a new one is created.