Chris Lattner 1ecb2a2dac Use the new TargetLowering::ComputeNumSignBits method to eliminate ... sign_extend_inreg operations. Though ComputeNumSignBits is still rudimentary, this is enough to compile this: short test(short X, short x) { int Y = X+x; return (Y >> 1); } short test2(short X, short x) { int Y = (short)(X+x); return Y >> 1; } into: _test: add r2, r3, r4 srawi r3, r2, 1 blr _test2: add r2, r3, r4 extsh r2, r2 srawi r3, r2, 1 blr instead of: _test: add r2, r3, r4 srawi r2, r2, 1 extsh r3, r2 blr _test2: add r2, r3, r4 extsh r2, r2 srawi r2, r2, 1 extsh r3, r2 blr llvm-svn: 28146		2006-05-06 09:30:03 +00:00
..
Analysis	Implement Transforms/IndVarsSimplify/complex-scev.ll, a case where we didn't	2006-04-26 18:34:07 +00:00
AsmParser	Make sure CVS versions of yacc and lex files get distributed.	2006-04-12 20:57:05 +00:00
Bytecode	use isValidOperands instead of duplicating checks	2006-04-08 04:09:19 +00:00
CodeGen	Use the new TargetLowering::ComputeNumSignBits method to eliminate	2006-05-06 09:30:03 +00:00
Debugger	Add the README files to the distribution.	2006-04-13 06:39:24 +00:00
ExecutionEngine	Adjust to use proper TargetData copy ctor	2006-05-04 21:18:40 +00:00
Linker	Add shufflevector support	2006-04-08 01:19:47 +00:00
Support	Fix PR743: emit -help output of a tool to cout, not cerr.	2006-04-28 05:36:25 +00:00
System	Mingw32 patches supplied by Anton Korobeynikov.	2006-04-29 18:41:44 +00:00
Target	Add some really really simple code for computing sign-bit propagation.	2006-05-06 09:27:13 +00:00
Transforms	Move some code around.	2006-05-06 09:00:16 +00:00
VMCore	Add assertions that verify that the actual arguments to a call or invoke match	2006-05-03 00:48:22 +00:00
Makefile	Add the Linker library	2004-11-14 21:54:41 +00:00