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LLVM backend for 6502
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fa17ce8b6e
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Simon Pilgrim fa17ce8b6e [SelectionDAG] Fixed issue with uitofp vector constant folding being treated as sitofp 
While the uitofp scalar constant folding treats an integer as an unsigned value (from lang ref):

%X = sitofp i8 -1 to double ; yields double:-1.0
%Y = uitofp i8 -1 to double ; yields double:255.0

The vector constant folding was always using sitofp:

%X = sitofp <2 x i8> <i8 -1, i8 -1> to <2 x double> ; yields <double -1.0, double -1.0>
%Y = uitofp <2 x i8> <i8 -1, i8 -1> to <2 x double> ; yields <double -1.0, double -1.0>

This patch fixes this so that the correct opcode is used for sitofp and uitofp.

%X = sitofp <2 x i8> <i8 -1, i8 -1> to <2 x double> ; yields <double -1.0, double -1.0>
%Y = uitofp <2 x i8> <i8 -1, i8 -1> to <2 x double> ; yields <double 255.0, double 255.0>

Differential Revision: http://reviews.llvm.org/D8560

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@233033 91177308-0d34-0410-b5e6-96231b3b80d8
2015-03-23 22:44:55 +00:00
autoconf [autoconf] Fix the build failure by quoting the strings. 2015-03-12 19:56:25 +00:00
bindings Go bindings: use MDNode::replaceAllUsesWith instead of MDTuple::replaceAllUsesWith. 2015-03-05 22:55:38 +00:00
cmake Re-land: Generate targets for each lit suite. 2015-03-23 20:04:00 +00:00
docs docs: Update llvm-cov docs for the -use-color flag 2015-03-19 18:22:46 +00:00
examples CMake: Disable ENABLE_EXPORTS for executables with MSVC 2015-03-18 20:09:13 +00:00
include Remove dead prototype DebugInfoFinder::processExpression(), NFC 2015-03-23 22:10:27 +00:00
lib [SelectionDAG] Fixed issue with uitofp vector constant folding being treated as sitofp 2015-03-23 22:44:55 +00:00
projects Reverse the order libc++ and libc++abi are added in CMake. 2015-03-04 01:16:43 +00:00
test [SelectionDAG] Fixed issue with uitofp vector constant folding being treated as sitofp 2015-03-23 22:44:55 +00:00
tools Cleanup else-after-return and add an early-return to llvm-nm 2015-03-23 21:17:43 +00:00
unittests Purge unused includes throughout libSupport. 2015-03-23 18:07:13 +00:00
utils Another set of missing raw_ostream.h. Still no functional change. 2015-03-23 18:45:56 +00:00
.arcconfig
.clang-format
.clang-tidy
.gitignore
CMakeLists.txt Re-land: Generate targets for each lit suite. 2015-03-23 20:04:00 +00:00
CODE_OWNERS.TXT Tom is also responsible for the 3.6 branch. 2015-03-16 18:15:27 +00:00
configure [autoconf] Fix the build failure by quoting the strings. 2015-03-12 19:56:25 +00:00
CREDITS.TXT
LICENSE.TXT Update for a new year. 2015-03-12 01:25:29 +00:00
llvm.spec.in
LLVMBuild.txt
Makefile
Makefile.common
Makefile.config.in
Makefile.rules Add support for SunOS function/data sections and associated 2015-03-03 20:54:29 +00:00
README.txt Revert test commit 2015-02-04 18:46:00 +00:00

README.txt 

Low Level Virtual Machine (LLVM)
================================

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