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d04766ba20
llvm-mirror/tools
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Peter Collingbourne d04766ba20 Introduce llvm.load.relative intrinsic. 
This intrinsic takes two arguments, ``%ptr`` and ``%offset``. It loads
a 32-bit value from the address ``%ptr + %offset``, adds ``%ptr`` to that
value and returns it. The constant folder specifically recognizes the form of
this intrinsic and the constant initializers it may load from; if a loaded
constant initializer is known to have the form ``i32 trunc(x - %ptr)``,
the intrinsic call is folded to ``x``.

LLVM provides that the calculation of such a constant initializer will
not overflow at link time under the medium code model if ``x`` is an
``unnamed_addr`` function. However, it does not provide this guarantee for
a constant initializer folded into a function body. This intrinsic can be
used to avoid the possibility of overflows when loading from such a constant.

Differential Revision: http://reviews.llvm.org/D18367

llvm-svn: 267223
2016-04-22 21:18:02 +00:00
..
bugpoint Remove every uses of getGlobalContext() in LLVM (but the C API) 2016-04-14 21:59:01 +00:00
bugpoint-passes Remove autoconf support 2016-01-26 21:29:08 +00:00
dsymutil Thread Expected<...> up from libObject’s getName() for symbols to allow llvm-objdump to produce a good error message. 2016-04-20 21:24:34 +00:00
gold Re-enable "[gold-plugin] Disable name for values other than GlobalValue" 2016-04-20 15:16:57 +00:00
llc Remove every uses of getGlobalContext() in LLVM (but the C API) 2016-04-14 21:59:01 +00:00
lli [Orc] Re-commit r266581 with fixes for MSVC, and format cleanups. 2016-04-18 19:55:43 +00:00
llvm-ar Fix formatting and wording of llvm-ranlib error message. NFC. 2016-04-08 00:02:14 +00:00
llvm-as Remove every uses of getGlobalContext() in LLVM (but the C API) 2016-04-14 21:59:01 +00:00
llvm-as-fuzzer Remove every uses of getGlobalContext() in LLVM (but the C API) 2016-04-14 21:59:01 +00:00
llvm-bcanalyzer [NFC] Header cleanup 2016-04-18 09:17:29 +00:00
llvm-c-test [llvm-c] Expose LLVMContextGetDiagnostic{Handler,Context} 2016-04-08 09:19:02 +00:00
llvm-config llvm-config: fix --libs on Linux 2016-03-14 21:39:58 +00:00
llvm-cov Thread Expected<...> up from createMachOObjectFile() to allow llvm-objdump to produce a real error message 2016-04-06 22:14:09 +00:00
llvm-cxxdump Thread Expected<...> up from libObject’s getName() for symbols to allow llvm-objdump to produce a good error message. 2016-04-20 21:24:34 +00:00
llvm-diff [NFC] Header cleanup 2016-04-18 09:17:29 +00:00
llvm-dis Remove every uses of getGlobalContext() in LLVM (but the C API) 2016-04-14 21:59:01 +00:00
llvm-dwarfdump [NFC] Header cleanup 2016-04-18 09:17:29 +00:00
llvm-dwp [NFC] Header cleanup 2016-04-18 09:17:29 +00:00
llvm-extract Remove every uses of getGlobalContext() in LLVM (but the C API) 2016-04-14 21:59:01 +00:00
llvm-go Remove autoconf support 2016-01-26 21:29:08 +00:00
llvm-jitlistener Remove every uses of getGlobalContext() in LLVM (but the C API) 2016-04-14 21:59:01 +00:00
llvm-link ThinLTO/ModuleLinker: add a flag to not always pull-in linkonce when performing importing 2016-04-21 01:59:39 +00:00
llvm-lto llvm-lto: run the module verifier when doing IR level work 2016-04-20 01:04:26 +00:00
llvm-mc MC: Don't access the filesystem in MCContext's constructor 2016-03-22 22:24:29 +00:00
llvm-mc-fuzzer [NFC] Header cleanup 2016-04-18 09:17:29 +00:00
llvm-mcmarkup Remove autoconf support 2016-01-26 21:29:08 +00:00
llvm-nm Thread Expected<...> up from libObject’s getName() for symbols to allow llvm-objdump to produce a good error message. 2016-04-20 21:24:34 +00:00
llvm-objdump Fix crash in llvm-objdump with -macho -objc-meta-data that was trying dump a non-existent section. 2016-04-21 19:49:29 +00:00
llvm-pdbdump Revert r267049, r26706[16789], r267071 - Refactor raw pdb dumper into library 2016-04-22 12:04:42 +00:00
llvm-profdata Remove every uses of getGlobalContext() in LLVM (but the C API) 2016-04-14 21:59:01 +00:00
llvm-readobj Thread Expected<...> up from libObject’s getName() for symbols to allow llvm-objdump to produce a good error message. 2016-04-20 21:24:34 +00:00
llvm-rtdyld Thread Expected<...> up from libObject’s getName() for symbols to allow llvm-objdump to produce a good error message. 2016-04-20 21:24:34 +00:00
llvm-shlib llvm-shlib: Remove the option to override __cxa_atexit 2016-03-14 21:54:45 +00:00
llvm-size Thread Expected<...> up from createMachOObjectFile() to allow llvm-objdump to produce a real error message 2016-04-06 22:14:09 +00:00
llvm-split Remove every uses of getGlobalContext() in LLVM (but the C API) 2016-04-14 21:59:01 +00:00
llvm-stress [NFC] Header cleanup 2016-04-18 09:17:29 +00:00
llvm-symbolizer Remove autoconf support 2016-01-26 21:29:08 +00:00
lto LTO: Use a common LibLTOCodeGenerator::init, NFC 2016-04-16 22:25:36 +00:00
msbuild MSBuild integration: fix the loop in install.bat 2014-09-30 22:30:06 +00:00
obj2yaml Thread Expected<...> up from libObject’s getName() for symbols to allow llvm-objdump to produce a good error message. 2016-04-20 21:24:34 +00:00
opt Introduce llvm.load.relative intrinsic. 2016-04-22 21:18:02 +00:00
sancov [sancov] using normalized filenames for blacklist checks. 2016-04-21 23:38:45 +00:00
sanstats Revert "Fix Clang-tidy modernize-deprecated-headers warnings in remaining files; other minor fixes." 2016-04-05 20:45:04 +00:00
verify-uselistorder Remove every uses of getGlobalContext() in LLVM (but the C API) 2016-04-14 21:59:01 +00:00
xcode-toolchain [CMake] [Darwin] Add support for generating Xcode-compatible toolchains that xcodebuild and xcrun can search 2015-10-15 20:09:01 +00:00
yaml2obj [NFC] Header cleanup 2016-04-18 09:17:29 +00:00
CMakeLists.txt [CMake] Add the gold plugin before clang 2016-02-26 21:07:04 +00:00
LLVMBuild.txt llvm-dwp: Initial layout 2015-12-01 00:48:34 +00:00