Evan Cheng 2bd122c4d9 Loosen up iv reuse to allow reuse of the same stride but a larger type when truncating from the larger type to smaller type is free. ... e.g. Turns this loop: LBB1_1: # entry.bb_crit_edge xorl %ecx, %ecx xorw %dx, %dx movw %dx, %si LBB1_2: # bb movl L_X$non_lazy_ptr, %edi movw %si, (%edi) movl L_Y$non_lazy_ptr, %edi movw %dx, (%edi) addw $4, %dx incw %si incl %ecx cmpl %eax, %ecx jne LBB1_2 # bb into LBB1_1: # entry.bb_crit_edge xorl %ecx, %ecx xorw %dx, %dx LBB1_2: # bb movl L_X$non_lazy_ptr, %esi movw %cx, (%esi) movl L_Y$non_lazy_ptr, %esi movw %dx, (%esi) addw $4, %dx incl %ecx cmpl %eax, %ecx jne LBB1_2 # bb git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@43375 91177308-0d34-0410-b5e6-96231b3b80d8		2007-10-26 01:56:11 +00:00
..
Alpha	Convert tests using "| wc -l | grep ..." to use the count script.	2007-08-15 13:36:28 +00:00
ARM	Fix memcpy lowering when addresses are 4-byte aligned but size is not multiple of 4.	2007-10-22 22:11:27 +00:00
CBackend	Change all floating constants that are not exactly	2007-09-05 17:50:36 +00:00
Generic	-pre-RA-sched=none, simple, simple-noitin are gone.	2007-10-01 22:17:20 +00:00
IA64	Convert .cvsignore files	2007-06-29 16:35:07 +00:00
PowerPC	If there's an unaligned memcpy to/from the stack, don't lower it. Just call the	2007-10-23 23:32:40 +00:00
SPARC	Convert tests using "| wc -l | grep ..." to use the count script.	2007-08-15 13:36:28 +00:00
X86	Loosen up iv reuse to allow reuse of the same stride but a larger type when truncating from the larger type to smaller type is free.	2007-10-26 01:56:11 +00:00