Evan Cheng 8b944d39b3 Added optimization that narrow load / op / store and the 'op' is a bit twiddling instruction and its second operand is an immediate. If bits that are touched by 'op' can be done with a narrower instruction, reduce the width of the load and store as well. This happens a lot with bitfield manipulation code. ... e.g. orl $65536, 8(%rax) => orb $1, 10(%rax) Since narrowing is not always a win, e.g. i32 -> i16 is a loss on x86, dag combiner consults with the target before performing the optimization. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@72507 91177308-0d34-0410-b5e6-96231b3b80d8		2009-05-28 00:35:15 +00:00
..
Analysis	Teach BasicAliasAnalysis to understand constant gep indices that fall	2009-05-27 01:48:27 +00:00
Archive
Assembler	Revert this. There's no way to verifiy indirect calls, and an optimizer can turn	2009-05-22 07:12:05 +00:00
Bindings/Ocaml	Nounwind is not valid for function return values.	2009-05-06 13:51:18 +00:00
Bitcode
BugPoint	Re-commit r67334 and r67349 with fix.	2009-03-21 18:12:24 +00:00
CodeGen	Added optimization that narrow load / op / store and the 'op' is a bit twiddling instruction and its second operand is an immediate. If bits that are touched by 'op' can be done with a narrower instruction, reduce the width of the load and store as well. This happens a lot with bitfield manipulation code.	2009-05-28 00:35:15 +00:00
DebugInfo	Fix broken logic in DominatorTreeBase::Split. Part of PR4238.	2009-05-21 21:47:54 +00:00
ExecutionEngine
Feature	Make MDNode use CallbackVH. Also change MDNode to store Value* instead of	2009-05-10 20:57:05 +00:00
FrontendAda
FrontendC	Commands beginning with '--' are converted to '-f' by gcc. Blech!	2009-05-18 18:09:36 +00:00
FrontendC++	Testcase for (llvm-gcc-4.2) 72442 (PR 4242).	2009-05-26 23:19:19 +00:00
FrontendFortran	These tests are x86 specific.	2009-04-22 10:39:51 +00:00
FrontendObjC	Test for llvm-gcc bug fixed by 70301.	2009-04-28 17:16:30 +00:00
FrontendObjC++
Integer	Converted a1.ll to unittests.	2009-03-24 21:36:09 +00:00
lib	Re-commit r67334 and r67349 with fix.	2009-03-21 18:12:24 +00:00
Linker
LLVMC	The 'forward_as' property did not use its second argument.	2009-05-06 01:41:19 +00:00
Other	Update call graph after inlining invoke.	2009-03-31 17:36:12 +00:00
Scripts
TableGen	Implement !if, analogous to $(if) in GNU make.	2009-05-14 23:26:46 +00:00
Transforms	Revert 72493 and replace it with a more conservative fix, for now: don't	2009-05-27 21:10:47 +00:00
Verifier	Revert this. There's no way to verifiy indirect calls, and an optimizer can turn	2009-05-22 07:12:05 +00:00
Makefile	Add more ulimit limits, to catch more kinds of runaway behavior.	2009-04-23 00:28:31 +00:00
Makefile.tests
TestRunner.sh