Chris Lattner 610f1e2785 Codegen signed divides by 2 and -2 more efficiently. In particular ... instead of: s: ;; X / 2 movl 4(%esp), %eax movl %eax, %ecx shrl $31, %ecx movl %eax, %edx addl %ecx, %edx sarl $1, %eax ret t: ;; X / -2 movl 4(%esp), %eax movl %eax, %ecx shrl $31, %ecx movl %eax, %edx addl %ecx, %edx sarl $1, %eax negl %eax ret Emit: s: movl 4(%esp), %eax cmpl $-2147483648, %eax sbbl $-1, %eax sarl $1, %eax ret t: movl 4(%esp), %eax cmpl $-2147483648, %eax sbbl $-1, %eax sarl $1, %eax negl %eax ret git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@16760 91177308-0d34-0410-b5e6-96231b3b80d8		2004-10-06 04:02:39 +00:00
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Analysis	'Pass' should now not be derived from by clients. Instead, they should derive	2004-09-20 04:48:05 +00:00
Archive	Changes For Bug 352	2004-09-01 22:55:40 +00:00
AsmParser	Okay, the list of link-time passes wasn't such a hot idea. Its prone to	2004-09-14 05:43:23 +00:00
Bytecode	Fix doxygen comment	2004-09-28 16:57:46 +00:00
CodeGen	Do not repeat the map lookup	2004-10-01 23:16:43 +00:00
Debugger	Changes For Bug 352	2004-09-01 22:55:40 +00:00
ExecutionEngine	Convert code to compile with vc7.1.	2004-09-15 17:06:42 +00:00
Linker	Make sure the const bit gets inherited correctly when linking declarations	2004-10-05 02:28:11 +00:00
Support	Excise the ill-advised RLCOMP compression algorithm and simply leave the	2004-10-04 17:45:44 +00:00
System	Must include sys/stat.h before declaring a 'struct stat'	2004-10-05 18:46:59 +00:00
Target	Codegen signed divides by 2 and -2 more efficiently. In particular	2004-10-06 04:02:39 +00:00
Transforms	Reduce code growth implied by the tail duplication pass by not duplicating	2004-10-06 03:27:37 +00:00
VMCore	Make sure the const bit gets inherited correctly when linking declarations	2004-10-05 02:28:11 +00:00
Makefile	Wrap long line	2004-09-15 01:34:42 +00:00