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Reed Kotler e3da1c94f1 Add load/store functionality 
Summary:
This patches allows non conversions like i1=i2; where both are global ints.
In addition, arithmetic and other things start to work since fast-isel will use
existing patterns for non fast-isel from tablegen files where applicable.

In addition i8, i16 will work in this limited context for assignment without the need
for sign extension (zero or signed). It does not matter how i8 or i16 are loaded (zero or sign extended)
since only the 8 or 16 relevant bits are used and clang will ask for sign extension before using them in
arithmetic. This is all made more complete in forthcoming patches.

for example:
  int i, j=1, k=3;
 
  void foo() {
    i = j + k;
  }

Keep in mind that this pass is not enabled right now and is an experimental pass
It can only be enabled with a hidden option to llvm of -mips-fast-isel.

Test Plan: Run test-suite, loadstore2.ll and I will run some executable tests.

Reviewers: dsanders

Subscribers: mcrosier

Differential Revision: http://reviews.llvm.org/D3856

llvm-svn: 211061
2014-06-16 22:05:47 +00:00
..
Analysis Reduce verbiage of lit.local.cfg files 2014-06-09 22:42:55 +00:00
Assembler Canonicalize addrspacecast ConstExpr between different pointer types 2014-06-15 21:40:57 +00:00
Bindings Reduce verbiage of lit.local.cfg files 2014-06-09 22:42:55 +00:00
Bitcode IR: add "cmpxchg weak" variant to support permitted failure. 2014-06-13 14:24:07 +00:00
BugPoint Revert r206989, "Mark llvm/test/BugPoint/compile-custom.ll as XFAIL:vg_leak." It has been fixed since r207265. 2014-04-27 11:59:33 +00:00
CodeGen Add load/store functionality 2014-06-16 22:05:47 +00:00
DebugInfo Improve comments for r211040 2014-06-16 20:31:50 +00:00
ExecutionEngine Reduce verbiage of lit.local.cfg files 2014-06-09 22:42:55 +00:00
Feature Move test for r210734 to Feature/aliases.ll. 2014-06-12 21:37:30 +00:00
FileCheck
Instrumentation Remove top-level Clang -fsanitize= flags for optional ASan features. 2014-06-13 17:53:44 +00:00
Integer
JitListener
Linker Allow aliases to be unnamed_addr. 2014-06-06 01:20:28 +00:00
LTO Reduce verbiage of lit.local.cfg files 2014-06-09 22:42:55 +00:00
MC [mips][mips64r6] ssnop is deprecated on MIPS32r6/MIPS64r6 2014-06-16 13:25:35 +00:00
Object Fix pr17056. 2014-06-16 16:41:00 +00:00
Other Canonicalize addrspacecast ConstExpr between different pointer types 2014-06-15 21:40:57 +00:00
TableGen Fix error in tablegen when either operand of !if is an empty list. 2014-06-10 20:10:08 +00:00
tools Reduce verbiage of lit.local.cfg files 2014-06-09 22:42:55 +00:00
Transforms LowerSwitch: track bounding range for the condition tree. 2014-06-16 16:55:20 +00:00
Unit
Verifier Move test for r210734 to Feature/aliases.ll. 2014-06-12 21:37:30 +00:00
YAMLParser
.clang-format
CMakeLists.txt OK, NAKAMURA Takumi beat me to this change. So backing out my addition of 2014-05-19 23:26:51 +00:00
lit.cfg Reduce verbiage of lit.local.cfg files 2014-06-09 22:42:55 +00:00
lit.site.cfg.in
Makefile lld test for configure & make 2014-06-06 09:06:25 +00:00
Makefile.tests
TestRunner.sh