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LLVM backend for 6502
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0f8f086e21
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Reid Kleckner 0f8f086e21 [ASan] Don't use stack malloc for 32-bit functions using inline asm 
This prevents us from running out of registers in the backend.

Introducing stack malloc calls prevents the backend from recognizing the
inline asm operands as stack objects. When the backend recognizes a
stack object, it doesn't need to materialize the address of the memory
in a physical register. Instead it generates a simple SP-based memory
operand. Introducing a stack malloc forces the backend to find a free
register for every memory operand. 32-bit x86 simply doesn't have enough
registers for this to succeed in most cases.

Reviewers: kcc, samsonov

Differential Revision: http://reviews.llvm.org/D8790

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@233979 91177308-0d34-0410-b5e6-96231b3b80d8
2015-04-02 21:44:55 +00:00
autoconf Try to unbreak Clang build to export LLVM_ABI_BREAKING_CHECKS, fixup for r233310. 2015-04-01 11:46:15 +00:00
bindings Go bindings: use MDNode::replaceAllUsesWith instead of MDTuple::replaceAllUsesWith. 2015-03-05 22:55:38 +00:00
cmake Try to unbreak Clang build to export LLVM_ABI_BREAKING_CHECKS, fixup for r233310. 2015-04-01 11:46:15 +00:00
docs [WinEH] Make llvm.eh.actions use frameescape indices for catch params 2015-04-02 21:13:31 +00:00
examples Rework r233647, "llvm/examples: Suppress building a few JIT examples." 2015-03-31 16:41:25 +00:00
include [opaque pointer type] API migration for GEP constant factories 2015-04-02 18:55:32 +00:00
lib [ASan] Don't use stack malloc for 32-bit functions using inline asm 2015-04-02 21:44:55 +00:00
projects Reverse the order libc++ and libc++abi are added in CMake. 2015-03-04 01:16:43 +00:00
test [ASan] Don't use stack malloc for 32-bit functions using inline asm 2015-04-02 21:44:55 +00:00
tools [opaque pointer type] API migration for GEP constant factories 2015-04-02 18:55:32 +00:00
unittests [opaque pointer type] API migration for GEP constant factories 2015-04-02 18:55:32 +00:00
utils TableGen: Generate more const goodness 2015-04-01 22:09:55 +00:00
.arcconfig
.clang-format
.clang-tidy
.gitignore Ignore compile_commands.json only at the root of the tree. 2015-03-26 18:55:42 +00:00
CMakeLists.txt CMake: enable installing utils 2015-03-27 16:53:06 +00:00
CODE_OWNERS.TXT Tom is also responsible for the 3.6 branch. 2015-03-16 18:15:27 +00:00
configure Try to unbreak Clang build to export LLVM_ABI_BREAKING_CHECKS, fixup for r233310. 2015-04-01 11:46:15 +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 Try to unbreak Clang build to export LLVM_ABI_BREAKING_CHECKS, fixup for r233310. 2015-04-01 11:46:15 +00:00
Makefile.rules Add support for SunOS function/data sections and associated 2015-03-03 20:54:29 +00:00
README.txt Revert test commit at revision 233535. 2015-03-30 12:39:03 +00:00

README.txt 

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

This directory and its subdirectories contain source code for LLVM,
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Please see the documentation provided in docs/ for further
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If you're writing a package for LLVM, see docs/Packaging.rst for our
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