Preston Gurd 2e2efd9600 Generic Bypass Slow Div ... - CodeGenPrepare pass for identifying div/rem ops - Backend specifies the type mapping using addBypassSlowDivType - Enabled only for Intel Atom with O2 32-bit -> 8-bit - Replace IDIV with instructions which test its value and use DIVB if the value is positive and less than 256. - In the case when the quotient and remainder of a divide are used a DIV and a REM instruction will be present in the IR. In the non-Atom case they are both lowered to IDIVs and CSE removes the redundant IDIV instruction, using the quotient and remainder from the first IDIV. However, due to this optimization CSE is not able to eliminate redundant IDIV instructions because they are located in different basic blocks. This is overcome by calculating both the quotient (DIV) and remainder (REM) in each basic block that is inserted by the optimization and reusing the result values when a subsequent DIV or REM instruction uses the same operands. - Test cases check for the presents of the optimization when calculating either the quotient, remainder, or both. Patch by Tyler Nowicki! git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@163150 91177308-0d34-0410-b5e6-96231b3b80d8		2012-09-04 18:22:17 +00:00
..
Analysis	llvm/test/Analysis/Profiling: Mark 3 of them as REQUIRES: loadable_module.	2012-08-29 00:37:46 +00:00
Archive
Assembler	The normal edge of an invoke is not allowed to branch to a block with a	2012-08-10 20:55:20 +00:00
Bindings/Ocaml	fix test's RUN lines	2012-09-02 15:07:25 +00:00
Bitcode	More replacing of target-dependent intrinsics with target-indepdent	2012-07-18 00:02:16 +00:00
BugPoint
CodeGen	Generic Bypass Slow Div	2012-09-04 18:22:17 +00:00
DebugInfo	Add support for fetching inlining context (stack of source code locations)	2012-09-04 08:12:33 +00:00
ExecutionEngine	Should put test case under test/ExecutionEngine/MCJIT/	2012-08-30 00:43:57 +00:00
Feature	Change the linker_private_weak_def_auto' linkage to linkonce_odr_auto_hide' to	2012-08-17 18:33:14 +00:00
Instrumentation	[asan] add code to detect global initialization fiasco in C/C++. The sub-pass is off by default for now. Patch by Reid Watson. Note: this patch changes the interface between LLVM and compiler-rt parts of asan. The corresponding patch to compiler-rt will follow.	2012-08-21 08:24:25 +00:00
Integer
Linker
MC	The instruction DINS may be transformed into DINSU or DEXTM depending	2012-08-31 18:06:48 +00:00
Object	Create llvm/test/Object/Mips/lit.local.cfg to check Mips in targets_to_build.	2012-08-29 01:37:57 +00:00
Other
Scripts
TableGen
Transforms	LICM may hoist an instruction with undefined behavior above a trap.	2012-09-04 10:25:04 +00:00
Unit
Verifier	Assert that dominates is not given a multiple edge. Finding out if we have	2012-08-17 18:21:28 +00:00
YAMLParser
CMakeLists.txt	llvm/test: [CMake] Add profile_rt-shared to deps.	2012-08-29 00:37:56 +00:00
lit.cfg
lit.site.cfg.in
Makefile	escape special char when handling CXX_FOR_OCAMLOPT	2012-09-02 15:16:51 +00:00
Makefile.tests
TestRunner.sh