llvm - http://llvm.org

Age	Commit message (Collapse)	Author
2012-01-15	Relax the FileCheck assertion a bit -- all we really care about is that	Chandler Carruth
	we're loading from the global array, not how it is spelled in the asm. This should fix the MSVC bots. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@148214 91177308-0d34-0410-b5e6-96231b3b80d8
2012-01-15	FileCheck-ize a test, make it more specific to directly test the shift	Chandler Carruth
	removal desired. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@148213 91177308-0d34-0410-b5e6-96231b3b80d8
2009-09-08	Eliminate more uses of llvm-as and llvm-dis.	Dan Gohman
	git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@81290 91177308-0d34-0410-b5e6-96231b3b80d8
2007-12-06	third time around: instead of disabling this completely,	Chris Lattner
	only disable it if we don't know it will be obviously profitable. Still fixme, but less so. :) git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@44658 91177308-0d34-0410-b5e6-96231b3b80d8
2007-12-06	Actually, disable this code for now. More analysis and improvements to	Chris Lattner
	the X86 backend are needed before this should be enabled by default. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@44657 91177308-0d34-0410-b5e6-96231b3b80d8
2007-12-06	implement a readme entry, compiling the code into:	Chris Lattner
	_foo: movl $12, %eax andl 4(%esp), %eax movl _array(%eax), %eax ret instead of: _foo: movl 4(%esp), %eax shrl $2, %eax andl $3, %eax movl _array(,%eax,4), %eax ret As it turns out, this triggers all the time, in a wide variety of situations, for example, I see diffs like this in various programs: - movl 8(%eax), %eax - shll $2, %eax - andl $1020, %eax - movl (%esi,%eax), %eax + movzbl 8(%eax), %eax + movl (%esi,%eax,4), %eax - shll $2, %edx - andl $1020, %edx - movl (%edi,%edx), %edx + andl $255, %edx + movl (%edi,%edx,4), %edx Unfortunately, I also see stuff like this, which can be fixed in the X86 backend: - andl $85, %ebx - addl _bit_count(,%ebx,4), %ebp + shll $2, %ebx + andl $340, %ebx + addl _bit_count(%ebx), %ebp git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@44656 91177308-0d34-0410-b5e6-96231b3b80d8