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LLVM backend for 6502
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97b44f9b80
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Dan Gohman 97b44f9b80 Use ConstantExpr::getExtractElement when constant-folding vectors 
instead of getAggregateElement. This has the advantage of being
more consistent and allowing higher-level constant folding to
procede even if an inner extract element cannot be folded.

Make ConstantFoldInstruction call ConstantFoldConstantExpression
on the instruction's operands, making it more consistent with 
ConstantFoldConstantExpression itself. This makes sure that
ConstantExprs get TargetData-aware folding before being handed
off as operands for further folding.

This causes more expressions to be folded, but due to a known
shortcoming in constant folding, this currently has the side effect
of stripping a few more nuw and inbounds flags in the non-targetdata
side of constant-fold-gep.ll. This is mostly harmless.

This fixes rdar://11324230.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@155682 91177308-0d34-0410-b5e6-96231b3b80d8
2012-04-27 00:54:36 +00:00
autoconf Kick off 3.2 cycle for LLVM trunk. 2012-04-20 18:15:07 +00:00
bindings [python] Add negative MemoryBuffer testcase 2012-03-22 11:23:52 +00:00
cmake [CMake] Restructure how Clang, Polly and other external projects get included. 2012-04-26 19:43:35 +00:00
docs Add note about returns_twice magic removal from LLVM itself. 2012-04-26 20:10:07 +00:00
examples Remove llvm-ld and llvm-stub (which is only used by llvm-ld). 2012-04-19 19:27:54 +00:00
include Reapply the SmallMap patch with a fix. 2012-04-25 18:01:58 +00:00
lib Use ConstantExpr::getExtractElement when constant-folding vectors 2012-04-27 00:54:36 +00:00
projects Remove llvm-ld and llvm-stub (which is only used by llvm-ld). 2012-04-19 19:27:54 +00:00
runtime Defensively guard against calling malloc() with a size of zero. 2012-04-26 20:54:27 +00:00
test Use ConstantExpr::getExtractElement when constant-folding vectors 2012-04-27 00:54:36 +00:00
tools DumpSegment64Command() wasn't returning correct result. Caught by static analyzer. rdar://11329354 2012-04-26 22:07:28 +00:00
unittests Fixed SmallMap test. The order of items is undefined in DenseMap. So being checking the increment for big mode, we can only check that all items are in map. 2012-04-26 18:45:24 +00:00
utils Add ifdef around getSubtargetFeatureName in tablegen output file so that only targets that want the function get it. This prevents other targets from getting an unused function warning. 2012-04-25 06:56:34 +00:00
.gitignore [docs] Stub out structure for Sphinx-based docs. 2012-04-19 16:31:19 +00:00
CMakeLists.txt CMake: Prune redundant LLVM_COMPILER_JOBS from llvm/CMakeLists.txt. HandleLLVMOptions.cmake has it. 2012-04-21 14:50:56 +00:00
configure Kick off 3.2 cycle for LLVM trunk. 2012-04-20 18:15:07 +00:00
CREDITS.TXT Update woefully stale credits entry. Everything listed there had been 2012-04-17 01:19:37 +00:00
LICENSE.TXT Add YAML parser to Support. 2012-04-03 23:09:22 +00:00
llvm.spec.in Tidy up. s/Low Level Virtual Machine/LLVM/. 2012-01-25 22:00:23 +00:00
LLVMBuild.txt LLVMBuild: Introduce a common section which currently has a list of the 2011-12-12 22:45:54 +00:00
Makefile When cross compiling, install a host version of llvm-config. <rdar://11187889> 2012-04-19 23:19:55 +00:00
Makefile.common Removed trailing whitespace from Makefiles. 2009-01-09 16:44:42 +00:00
Makefile.config.in Add profiling support for Intel Parallel Amplifier XE (VTune) for JITted code in LLVM. 2012-03-13 08:33:15 +00:00
Makefile.rules Remove llvm-ld and llvm-stub (which is only used by llvm-ld). 2012-04-19 19:27:54 +00:00
README.txt test commit 2012-03-20 13:12:38 +00:00

README.txt 

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