Chris Lattner 08b698e38d Emit long comparison against -1 better. Instead of this (x86): ... test2: movl 8(%esp), %eax notl %eax movl 4(%esp), %ecx notl %ecx orl %eax, %ecx cmpl $0, %ecx sete %al movzbl %al, %eax ret or this (PPC): _test2: nor r2, r4, r4 nor r3, r3, r3 or r2, r2, r3 cntlzw r2, r2 srwi r3, r2, 5 blr Emit this: test2: movl 8(%esp), %eax andl 4(%esp), %eax cmpl $-1, %eax sete %al movzbl %al, %eax ret or this: _test2: .LBB_test2_0: ; and r2, r4, r3 cmpwi cr0, r2, -1 li r3, 1 li r2, 0 beq .LBB_test2_2 ; .LBB_test2_1: ; or r3, r2, r2 .LBB_test2_2: ; blr it seems like the PPC isel could do better for R32 == -1 case. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@21242 91177308-0d34-0410-b5e6-96231b3b80d8		2005-04-12 01:46:05 +00:00
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LegalizeDAG.cpp	Emit long comparison against -1 better. Instead of this (x86):	2005-04-12 01:46:05 +00:00
Makefile	Change Library Names Not To Conflict With Others When Installed	2004-10-27 23:18:45 +00:00
SelectionDAG.cpp	canonicalize x <u 1 -> x == 0. On this testcase:	2005-04-12 00:28:49 +00:00
SelectionDAGISel.cpp	Emit BRCONDTWOWAY when possible.	2005-04-09 03:30:29 +00:00
SelectionDAGPrinter.cpp	Don't mash stuff together.	2005-01-16 07:28:31 +00:00
TargetLowering.cpp	Add a hook to find out how the target handles shift amounts that are out of	2005-01-19 03:36:14 +00:00