Chris Lattner e70da20f9a implement a readme entry, compiling the code into: ... _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		2007-12-06 07:33:36 +00:00
..
Analysis	Commit 44487 broke bootstrap of llvm-gcc-4.2. It is	2007-12-05 21:03:28 +00:00
Archive	finishing touches of bytecode -> bitcode changes. also unbreak Windows	2007-07-06 20:28:40 +00:00
AsmParser	Regenerate	2007-12-03 21:01:29 +00:00
Bitcode	Applying Anton's binmode fix to the other ofstream too.	2007-12-03 14:50:37 +00:00
CodeGen	implement a readme entry, compiling the code into:	2007-12-06 07:33:36 +00:00
Debugger
ExecutionEngine	Adjust VStudio files to add JITMemoryManager files + include <cassert> from same.	2007-12-06 02:03:01 +00:00
Linker	Fix PR1146: parameter attributes are longer part of	2007-11-27 13:23:08 +00:00
Support	Prior commit updated wrong if, apologies.	2007-12-05 13:06:04 +00:00
System	Provide hook for _alloca to make JITing on Cygwin slightly happier :)	2007-12-03 05:30:41 +00:00
Target	implement a readme entry, compiling the code into:	2007-12-06 07:33:36 +00:00
Transforms	simplify some code.	2007-12-06 06:25:04 +00:00
VMCore	Commit 44487 broke bootstrap of llvm-gcc-4.2. It is	2007-12-05 21:03:28 +00:00
Makefile