Chris Lattner b688868418 Extend jump threading to support much more general threading ... predicates. This allows us to jump thread things like: _ZN12StringSwitchI5ColorE4CaseILj7EEERS1_RAT__KcRKS0_.exit119: %tmp1.i24166 = phi i8 [ 1, %bb5.i117 ], [ %tmp1.i24165, %_Z....exit ], [ %tmp1.i24165, %bb4.i114 ] %toBoolnot.i87 = icmp eq i8 %tmp1.i24166, 0 ; <i1> [#uses=1] %tmp4.i90 = icmp eq i32 %tmp2.i, 6 ; <i1> [#uses=1] %or.cond173 = and i1 %toBoolnot.i87, %tmp4.i90 ; <i1> [#uses=1] br i1 %or.cond173, label %bb4.i96, label %_ZN12... Where it is "obvious" that when coming from %bb5.i117 that the 'and' is always false. This triggers a surprisingly high number of times in the testsuite, and gets us closer to generating good code for doug's strswitch testcase. This also make a bunch of other code in jump threading redundant, I'll rip out in the next patch. This survived an enable-checking llvm-gcc bootstrap. llvm-svn: 86264		2009-11-06 18:15:14 +00:00
..
Hello	Use raw_ostream::write_escaped instead of EscapeString.	2009-10-17 20:43:19 +00:00
Instrumentation	Remove includes of Support/Compiler.h that are no longer needed after the	2009-10-25 06:57:41 +00:00
IPO	remove a bunch of extraneous LLVMContext arguments	2009-11-06 04:27:31 +00:00
Scalar	Extend jump threading to support much more general threading	2009-11-06 18:15:14 +00:00
Utils	remove a bunch of extraneous LLVMContext arguments	2009-11-06 04:27:31 +00:00
Makefile	The attached patches attempt to fix cross builds. For example, if you	2009-08-18 00:40:33 +00:00