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author | Gordon Henriksen <gordonhenriksen@mac.com> | 2007-12-10 03:18:06 +0000 |
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committer | Gordon Henriksen <gordonhenriksen@mac.com> | 2007-12-10 03:18:06 +0000 |
commit | 80a75bfae980df96f969f1c05b0c4a80ce975240 (patch) | |
tree | b17b6964d35ffeaa66a62793e9cb123e67b69310 /include/llvm | |
parent | afba8fe662d65b25b4baf46bb26cc18e1f9cc0a5 (diff) | |
download | llvm-80a75bfae980df96f969f1c05b0c4a80ce975240.tar.gz llvm-80a75bfae980df96f969f1c05b0c4a80ce975240.tar.bz2 llvm-80a75bfae980df96f969f1c05b0c4a80ce975240.tar.xz |
Adding a collector name attribute to Function in the IR. These
methods are new to Function:
bool hasCollector() const;
const std::string &getCollector() const;
void setCollector(const std::string &);
void clearCollector();
The assembly representation is as such:
define void @f() gc "shadow-stack" { ...
The implementation uses an on-the-side table to map Functions to
collector names, such that there is no overhead. A StringPool is
further used to unique collector names, which are extremely
likely to be unique per process.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@44769 91177308-0d34-0410-b5e6-96231b3b80d8
Diffstat (limited to 'include/llvm')
-rw-r--r-- | include/llvm/Bitcode/LLVMBitCodes.h | 4 | ||||
-rw-r--r-- | include/llvm/Function.h | 7 |
2 files changed, 10 insertions, 1 deletions
diff --git a/include/llvm/Bitcode/LLVMBitCodes.h b/include/llvm/Bitcode/LLVMBitCodes.h index f62af5e17c..32311b26d9 100644 --- a/include/llvm/Bitcode/LLVMBitCodes.h +++ b/include/llvm/Bitcode/LLVMBitCodes.h @@ -58,7 +58,9 @@ namespace bitc { MODULE_CODE_ALIAS = 9, /// MODULE_CODE_PURGEVALS: [numvals] - MODULE_CODE_PURGEVALS = 10 + MODULE_CODE_PURGEVALS = 10, + + MODULE_CODE_COLLECTORNAME = 11 // COLLECTORNAME: [strchr x N] }; /// PARAMATTR blocks have code for defining a parameter attribute set. diff --git a/include/llvm/Function.h b/include/llvm/Function.h index 20a43e285c..ece095d380 100644 --- a/include/llvm/Function.h +++ b/include/llvm/Function.h @@ -153,6 +153,13 @@ public: /// @brief Set the parameter attributes. void setParamAttrs(const ParamAttrsList *attrs); + /// hasCollector/getCollector/setCollector/clearCollector - The name of the + /// garbage collection algorithm to use during code generation. + bool hasCollector() const; + const char *getCollector() const; + void setCollector(const char *Str); + void clearCollector(); + /// @brief Determine whether the function has the given attribute. bool paramHasAttr(uint16_t i, ParameterAttributes attr) const { return ParamAttrs && ParamAttrs->paramHasAttr(i, attr); |