Chris Lattner 010de25f42 Implement a simple optimization for the termination condition of the loop. ... The termination condition actually wants to use the post-incremented value of the loop, not a new indvar with an unusual base. On PPC, for example, this allows us to compile LoopStrengthReduce/exit_compare_live_range.ll to: _foo: li r2, 0 .LBB_foo_1: ; no_exit li r5, 0 stw r5, 0(r3) addi r2, r2, 1 cmpw cr0, r2, r4 bne .LBB_foo_1 ; no_exit blr instead of: _foo: li r2, 1 ;; IV starts at 1, not 0 .LBB_foo_1: ; no_exit li r5, 0 stw r5, 0(r3) addi r5, r2, 1 cmpw cr0, r2, r4 or r2, r5, r5 ;; Reg-reg copy, extra live range bne .LBB_foo_1 ; no_exit blr This implements LoopStrengthReduce/exit_compare_live_range.ll git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@22699 91177308-0d34-0410-b5e6-96231b3b80d8		2005-08-08 05:28:22 +00:00
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Analysis	* Unbreak optimized build (noticed by Eric van Riet Paap)	2005-08-04 14:16:48 +00:00
Archive	Final Changes For PR495:	2005-07-08 03:08:58 +00:00
AsmParser	Fix grammar	2005-06-24 18:00:40 +00:00
Bytecode	Eliminate all remaining tabs and trailing spaces.	2005-07-27 06:12:32 +00:00
CodeGen	Handle 64-bit constant exprs on 64-bit targets.	2005-08-08 04:26:32 +00:00
Debugger	For PR495:	2005-07-07 23:21:43 +00:00
ExecutionEngine	one cannot allocate a global, until one is done initializing the global pointers	2005-08-01 17:35:40 +00:00
Linker	For PR495:	2005-07-07 23:21:43 +00:00
Support	200.sixtrack prints FP numbers with a very strange notation that uses D	2005-08-02 00:11:53 +00:00
System	Fix grammar: it's == "it is".	2005-08-02 16:04:59 +00:00
Target	Consolidate the GPOpt stuff to all use the Subtarget, instead of still	2005-08-05 22:05:03 +00:00
Transforms	Implement a simple optimization for the termination condition of the loop.	2005-08-08 05:28:22 +00:00
VMCore	add new helper function	2005-08-08 05:21:50 +00:00
Makefile