llvm-project

History

Anders Carlsson 6a113d9ddb If a global var decl has an initializer, make sure to always set its linkage to external. llvm-svn: 60462		2008-12-03 05:51:23 +00:00
..
CGBuilder.h	Disable generation of basic block names in NDEBUG mode.	2008-11-12 00:01:12 +00:00
CGBuiltin.cpp	Use the new Expr::Evaluate	2008-12-01 02:31:41 +00:00
CGCXX.cpp	Rename Selector::getName() to Selector::getAsString(), and add	2008-11-24 03:33:13 +00:00
CGCall.cpp	Handle returning complex types that get coerced. Fixes PR3131	2008-11-25 22:21:48 +00:00
CGCall.h	Large mechanical patch.	2008-09-25 21:02:23 +00:00
CGDebugInfo.cpp	Convert incomplete array types before emitting debug info for them, fixes PR3134.	2008-11-26 17:40:42 +00:00
CGDebugInfo.h	reimplement debug info generation in terms of DebugInfo.h instead of	2008-11-10 06:08:34 +00:00
CGDecl.cpp	Migrate some stuff from NamedDecl::getName() to	2008-11-24 04:00:27 +00:00
CGExpr.cpp	Rename NamedDecl::getName() to getNameAsString(). Replace a bunch of	2008-11-24 05:29:24 +00:00
CGExprAgg.cpp	Disabling this code due to regression on test/CodeGen/bitfield.c. See	2008-12-02 01:17:45 +00:00
CGExprComplex.cpp	Normalize many BasicBlock names.	2008-11-13 01:38:36 +00:00
CGExprConstant.cpp	Change more code over to using the new Expr::Evaluate	2008-12-01 02:42:14 +00:00
CGExprScalar.cpp	Fix for PR3150: obvious copy-paste bug in	2008-12-02 16:02:46 +00:00
CGObjC.cpp	Code gen for aggregate-valued properties and a test case.	2008-11-26 22:36:09 +00:00
CGObjCGNU.cpp	Rename NamedDecl::getName() to getNameAsString(). Replace a bunch of	2008-11-24 05:29:24 +00:00
CGObjCMac.cpp	Rename NamedDecl::getName() to getNameAsString(). Replace a bunch of	2008-11-24 05:29:24 +00:00
CGObjCRuntime.h	Consolidated @try and @synchronize into a single	2008-11-21 00:49:24 +00:00
CGStmt.cpp	Use Expr::Evaluate for case statements. Fixes PR2525	2008-11-22 21:04:56 +00:00
CGValue.h	Implemented ir-gen for 'implicit' properties using the new AST nodes.	2008-11-22 22:30:21 +00:00
CMakeLists.txt	CMake: Builds and installs clang binary and libs (no docs yet). It	2008-10-26 00:56:18 +00:00
CodeGenFunction.cpp	Change more code over to using the new Expr::Evaluate	2008-12-01 02:46:24 +00:00
CodeGenFunction.h	Implemented ir-gen for 'implicit' properties using the new AST nodes.	2008-11-22 22:30:21 +00:00
CodeGenModule.cpp	If a global var decl has an initializer, make sure to always set its linkage to external.	2008-12-03 05:51:23 +00:00
CodeGenModule.h	Add option argument to GetAddrOfConstantString to use for name of	2008-10-17 21:56:50 +00:00
CodeGenTypes.cpp	Rename NamedDecl::getName() to getNameAsString(). Replace a bunch of	2008-11-24 05:29:24 +00:00
CodeGenTypes.h	Lift out ABIInfo abstract base class.	2008-10-13 17:02:26 +00:00
Makefile	Make a major restructuring of the clang tree: introduce a top-level	2008-03-15 23:59:48 +00:00
ModuleBuilder.cpp	Add GetModule accessor to ModuleBuilder	2008-10-21 19:55:09 +00:00
README.txt	Test commit.	2008-11-27 03:47:29 +00:00

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.

//===---------------------------------------------------------------------===//