зеркало из https://github.com/microsoft/clang-1.git
5862650052
Also, took care of Daniel's commments. git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@59575 91177308-0d34-0410-b5e6-96231b3b80d8 |
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|---|---|---|
| .. | ||
| CGBuilder.h | ||
| CGBuiltin.cpp | ||
| CGCXX.cpp | ||
| CGCall.cpp | ||
| CGCall.h | ||
| CGDebugInfo.cpp | ||
| CGDebugInfo.h | ||
| CGDecl.cpp | ||
| CGExpr.cpp | ||
| CGExprAgg.cpp | ||
| CGExprComplex.cpp | ||
| CGExprConstant.cpp | ||
| CGExprScalar.cpp | ||
| CGObjC.cpp | ||
| CGObjCGNU.cpp | ||
| CGObjCMac.cpp | ||
| CGObjCRuntime.h | ||
| CGStmt.cpp | ||
| CGValue.h | ||
| CMakeLists.txt | ||
| CodeGenFunction.cpp | ||
| CodeGenFunction.h | ||
| CodeGenModule.cpp | ||
| CodeGenModule.h | ||
| CodeGenTypes.cpp | ||
| CodeGenTypes.h | ||
| Makefile | ||
| ModuleBuilder.cpp | ||
| README.txt | ||
README.txt
IRgen optimization opportunities. //===---------------------------------------------------------------------===// The common pattern of -- short x; // or char, etc (x == 10) -- generates an zext/sext of x which can easily be avoided. //===---------------------------------------------------------------------===// Bitfields accesses can be shifted to simplify masking and sign extension. For example, if the bitfield width is 8 and it is appropriately aligned then is is a lot shorter to just load the char directly. //===---------------------------------------------------------------------===// Bitfields should not reload the stored value just to return the correct result. //===---------------------------------------------------------------------===//