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7 Commits

Author SHA1 Message Date
NAKAMURA Takumi
7d34b92993 test/CodeGen/X86/jump_sign.ll: Add -mcpu=pentiumpro for non-x86 hosts. It uses "cmov". 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@147521 91177308-0d34-0410-b5e6-96231b3b80d8
 2012-01-04 03:52:23 +00:00
Evan Cheng
56f582d664 For x86, canonicalize max 
(x > y) ? x : y
=>
(x >= y) ? x : y

So for something like
(x - y) > 0 : (x - y) ? 0
It will be
(x - y) >= 0 : (x - y) ? 0

This makes is possible to test sign-bit and eliminate a comparison against
zero. e.g.
subl   %esi, %edi
testl  %edi, %edi
movl   $0, %eax
cmovgl %edi, %eax
=>
xorl   %eax, %eax
subl   %esi, $edi
cmovsl %eax, %edi

rdar://10633221


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@147512 91177308-0d34-0410-b5e6-96231b3b80d8
 2012-01-04 01:41:39 +00:00
Dan Gohman
36a0947820 Eliminate more uses of llvm-as and llvm-dis. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@81290 91177308-0d34-0410-b5e6-96231b3b80d8
 2009-09-08 23:54:48 +00:00
Tanya Lattner
33eefffb2b Remove llvm-upgrade and update tests. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@47432 91177308-0d34-0410-b5e6-96231b3b80d8
 2008-02-21 07:42:26 +00:00
Reid Spencer
69ccadd753 Use the llvm-upgrade program to upgrade llvm assembly. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@32115 91177308-0d34-0410-b5e6-96231b3b80d8
 2006-12-02 04:23:10 +00:00
Chris Lattner
0f5e9b99fc The sense of this branch was backwards 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@30296 91177308-0d34-0410-b5e6-96231b3b80d8
 2006-09-13 17:58:57 +00:00
Chris Lattner
06f7ee9133 new testcase 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@30282 91177308-0d34-0410-b5e6-96231b3b80d8
 2006-09-13 03:21:27 +00:00