diff options
Diffstat (limited to 'docs/Lexicon.rst')
| -rw-r--r-- | docs/Lexicon.rst | 21 |
1 files changed, 21 insertions, 0 deletions
diff --git a/docs/Lexicon.rst b/docs/Lexicon.rst index 9a599da128591..112eb7d79ec1c 100644 --- a/docs/Lexicon.rst +++ b/docs/Lexicon.rst @@ -46,6 +46,15 @@ B C - +**CFI** + Call Frame Information. Used in DWARF debug info and in C++ unwind info + to show how the function prolog lays out the stack frame. + +**CIE** + Common Information Entry. A kind of CFI used to reduce the size of FDEs. + The compiler creates a CIE which contains the information common across all + the FDEs. Each FDE then points to its CIE. + **CSE** Common Subexpression Elimination. An optimization that removes common subexpression compuation. For example ``(a+b)*(a+b)`` has two subexpressions @@ -82,6 +91,10 @@ F **FCA** First Class Aggregate +**FDE** + Frame Description Entry. A kind of CFI used to describe the stack frame of + one function. + G - @@ -121,6 +134,14 @@ L **LICM** Loop Invariant Code Motion +**LSDA** + Language Specific Data Area. C++ "zero cost" unwinding is built on top a + generic unwinding mechanism. As the unwinder walks each frame, it calls + a "personality" function to do language specific analysis. Each function's + FDE points to an optional LSDA which is passed to the personality function. + For C++, the LSDA contain info about the type and location of catch + statements in that function. + **Load-VN** Load Value Numbering |