Chris Lattner 5f42a240ba Two things: ... 1. teach SimplifySetCC that '(srl (ctlz x), 5) == 0' is really x != 0. 2. Teach visitSELECT_CC to use SimplifySetCC instead of calling it and ignoring the result. This allows us to compile: bool %test(ulong %x) { %tmp = setlt ulong %x, 4294967296 ret bool %tmp } to: _test: cntlzw r2, r3 cmplwi cr0, r3, 1 srwi r2, r2, 5 li r3, 0 beq cr0, LBB1_2 ; LBB1_1: ; mr r3, r2 LBB1_2: ; blr instead of: _test: addi r2, r3, -1 cntlzw r2, r2 cntlzw r3, r3 srwi r2, r2, 5 cmplwi cr0, r2, 0 srwi r2, r3, 5 li r3, 0 bne cr0, LBB1_2 ; LBB1_1: ; mr r3, r2 LBB1_2: ; blr This isn't wonderful, but it's an improvement. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@30513 91177308-0d34-0410-b5e6-96231b3b80d8		2006-09-20 06:19:26 +00:00
..
Analysis	Explain change with a comment.	2006-09-17 17:51:00 +00:00
Archive	For PR797:	2006-08-25 19:54:53 +00:00
AsmParser	Added some eye-candy for Subtarget type checking	2006-09-17 20:25:45 +00:00
Bytecode	Small fixes for supporting dll* linkage types	2006-09-17 13:06:18 +00:00
CodeGen	Two things:	2006-09-20 06:19:26 +00:00
Debugger	For PR797:	2006-08-25 17:43:11 +00:00
ExecutionEngine	Unbreak the JIT	2006-09-15 04:56:11 +00:00
Linker	Adding dllimport, dllexport and external weak linkage types.	2006-09-14 18:23:27 +00:00
Support	Instantiate Statistic<> in one place, not in every .o file that uses it.	2006-08-30 04:17:00 +00:00
System	Use new config.h macro	2006-09-14 06:21:59 +00:00
Target	This is already done	2006-09-20 04:59:33 +00:00
Transforms	We went through all that trouble to compute whether it was safe to transform	2006-09-20 04:44:59 +00:00
VMCore	add a helper method	2006-09-18 04:54:57 +00:00
Makefile	Make some changes suggested by Chris:	2006-05-17 22:55:35 +00:00