Shuxin Yang a09e18fcfa For rdar://12329730, last piece. ... This change attempts to simplify (X^Y) -> X or Y in the user's context if we know that only bits from X or Y are demanded. A minimized case is provided bellow. This change will simplify "t>>16" into "var1 >>16". ============================================================= unsigned foo (unsigned val1, unsigned val2) { unsigned t = val1 ^ 1234; return (t >> 16) | t; // NOTE: t is used more than once. } ============================================================= Note that if the "t" were used only once, the expression would be finally optimized as well. However, with with this change, the optimization will take place earlier. Reviewed by Nadav, Thanks a lot! git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@169317 91177308-0d34-0410-b5e6-96231b3b80d8		2012-12-04 22:15:32 +00:00
..
Analysis	Modified dump() to provide a little	2012-11-30 00:44:47 +00:00
Archive
Assembler	Fast-math test case for bitcode and textual reading/writing	2012-11-27 00:45:08 +00:00
Bindings/Ocaml
Bitcode
BugPoint	Fix unexpected passes. These test do work with LTO on linux. I tested both	2012-10-26 02:19:02 +00:00
CodeGen	Use the 'count' attribute to calculate the upper bound of an array.	2012-12-04 21:34:03 +00:00
DebugInfo	Use the 'count' attribute to calculate the upper bound of an array.	2012-12-04 21:34:03 +00:00
ExecutionEngine	llvm/test/ExecutionEngine/MCJIT/lit.local.cfg: ppc32-elf is not ready.	2012-11-20 10:49:01 +00:00
Feature	Remove the dependent libraries feature.	2012-11-27 09:55:56 +00:00
FileCheck	Fix a bug in FileCheck that wouldn't let define variables as follows:	2012-12-02 16:02:41 +00:00
Instrumentation	Improve MSan tests.	2012-12-04 11:42:05 +00:00
Integer	Remove the dependent libraries feature.	2012-11-27 09:55:56 +00:00
JitListener	Use the 'count' attribute to calculate the upper bound of an array.	2012-12-04 21:34:03 +00:00
Linker	Remove the dependent libraries feature.	2012-11-27 09:55:56 +00:00
MC	A test in thid directory was not being run because lit.local.cfg didn't	2012-12-04 17:00:11 +00:00
Object	numerically sort the symbols, so that the testcase result is uniform	2012-11-13 21:01:11 +00:00
Other	Using "not grep" is brittle as the test passes if llvm-as fails.	2012-11-21 14:17:23 +00:00
Scripts	Added program header emission	2012-11-16 20:51:32 +00:00
TableGen
tools/llvm-objdump	Add a tests for the new -no-show-raw-insn option of llvm-objdump.	2012-11-20 23:44:22 +00:00
Transforms	For rdar://12329730, last piece.	2012-12-04 22:15:32 +00:00
Unit
Verifier
YAMLParser
CMakeLists.txt	Adding tests for the Intel JIT event listener's MCJIT support.	2012-11-21 20:38:26 +00:00
lit.cfg	Adding tests for the Intel JIT event listener's MCJIT support.	2012-11-21 20:38:26 +00:00
lit.site.cfg.in	Adding tests for the Intel JIT event listener's MCJIT support.	2012-11-21 20:38:26 +00:00
Makefile	test: Add a lit config variable to check if LTO is enabled.	2012-10-18 20:43:11 +00:00
Makefile.tests
TestRunner.sh