llvm/lib
Benjamin Kramer f51190b697 X86: Add a bunch of peeps for add and sub of SETB.
"b + ((a < b) ? 1 : 0)" compiles into
	cmpl	%esi, %edi
	adcl	$0, %esi
instead of
	cmpl	%esi, %edi
	sbbl	%eax, %eax
	andl	$1, %eax
	addl	%esi, %eax

This saves a register, a false dependency on %eax
(Intel's CPUs still don't ignore it) and it's shorter.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@131070 91177308-0d34-0410-b5e6-96231b3b80d8
2011-05-08 18:36:07 +00:00
..
Analysis The comparision "max(x,y)==x" is equivalent to "x>=y". Since the max is 2011-05-07 16:56:49 +00:00
Archive Revert PathV2 changes, as sys::fs::unique_file is not finished yet. 2011-03-01 19:50:55 +00:00
AsmParser Remove unused variables caught by GCC's -Wunused-but-set-variable. 2011-05-03 16:00:27 +00:00
Bitcode It's valid to take the blockaddress of a different function, so remove this 2011-05-06 21:09:44 +00:00
CodeGen Emit a proper error message when register allocators run out of registers. 2011-05-06 21:58:30 +00:00
CompilerDriver Build CompilerDriver library. 2011-03-12 22:01:42 +00:00
ExecutionEngine Revert ExecutionEngine patches, they either failed to build or broke unit tests. 2011-05-07 03:12:54 +00:00
Linker Set the unnamed_addr only when we're creating a new GV in the dest module. 2011-03-29 23:31:06 +00:00
MC Don't force relaxation of AdvanceLoc instructions on OS X. gdb is happy with 2011-05-08 14:35:21 +00:00
Object Remove dead variable pointed out by GCC 4.6 warnings, and reflow this a little 2011-05-02 05:05:29 +00:00
Support In option typo correction, consider -foo=VALUE flags as two distinct parts. The 2011-05-02 05:24:47 +00:00
Target X86: Add a bunch of peeps for add and sub of SETB. 2011-05-08 18:36:07 +00:00
Transforms Fix PR9820: a read-only call differs from a load in that a load doesn't 2011-05-06 10:30:37 +00:00
VMCore In debug output, clearly list new instructions without DebugLoc. 2011-05-05 22:05:57 +00:00
CMakeLists.txt Build CompilerDriver library. 2011-03-12 22:01:42 +00:00
Makefile Add LLVMObject Library. 2010-11-15 03:21:41 +00:00