Reid Kleckner 016f651f8d Fix symbol resolution of floating point libc builtins in MCJIT ... Fix for LLI failure on Windows\X86: http://llvm.org/PR5053 LLI.exe crashes on Windows\X86 when single precession floating point intrinsics like the following are used: acos, asin, atan, atan2, ceil, copysign, cos, cosh, exp, floor, fmin, fmax, fmod, log, pow, sin, sinh, sqrt, tan, tanh The above intrinsics are defined as inline-expansions in math.h, and are not exported by msvcr120.dll (Win32 API GetProcAddress returns null). For an FREM instruction, the JIT compiler generates a call to a stub for the fmodf() intrinsic, and adds a relocation to fixup at load time. The loader searches the libraries for the function, but fails because the symbol is not exported. So, the call target remains NULL and the execution crashes. Since the math functions are loaded at JIT/runtime, the JIT can patch CALL instruction directly instead of the searching the libraries' exported symbols. However, this fix caused build failures due to unresolved symbols like _fmodf at link time. Therefore, the current fix defines helper functions in the Runtime link/load library to perform the above operations. The address of these helper functions are used to patch up the CALL instruction at load time. Reviewers: lhames, rnk Reviewed By: rnk Differential Revision: http://reviews.llvm.org/D5387 Patch by Swaroop Sridhar! git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@221947 91177308-0d34-0410-b5e6-96231b3b80d8		2014-11-13 23:32:52 +00:00
..
Analysis	Revert r219432 - "Revert "[BasicAA] Revert "Revert r218714 - Make better use of zext and sign information."""	2014-11-13 09:16:54 +00:00
AsmParser	X86: Implement the vectorcall calling convention	2014-10-28 01:29:26 +00:00
Bitcode	Silence MSVC warning on missing return after fully covered switch	2014-11-13 23:07:22 +00:00
CodeGen	Use nullptr instead of NULL for variadic sentinels	2014-11-13 22:55:19 +00:00
DebugInfo	Revert "[dwarfdump] Add support for dumping accelerator tables."	2014-11-13 00:15:15 +00:00
ExecutionEngine	Changing a StringRef::begin() call into StringRef::data(); NFC.	2014-11-12 19:43:13 +00:00
IR	Use nullptr instead of NULL for variadic sentinels	2014-11-13 22:55:19 +00:00
IRReader	Remove unused variable. NFC.	2014-11-06 23:16:57 +00:00
LineEditor
Linker	Revert "IR: MDNode => Value"	2014-11-11 21:30:22 +00:00
LTO	libLTO: Assert if LTOCodeGenerator and LTOModule are from different contexts	2014-11-11 23:13:10 +00:00
MC	Fix a regression on the disassembling C API.	2014-11-13 16:52:07 +00:00
Object	Un-break the big-endian buildbots	2014-11-13 20:07:06 +00:00
Option
ProfileData	Use ErrorOr for the ::create factory on instrumented and sample profilers.	2014-11-03 00:51:45 +00:00
Support	Fix symbol resolution of floating point libc builtins in MCJIT	2014-11-13 23:32:52 +00:00
TableGen
Target	R600/SI: Fix fmin_legacy / fmax_legacy matching for SI	2014-11-13 23:03:09 +00:00
Transforms	Use nullptr instead of NULL for variadic sentinels	2014-11-13 22:55:19 +00:00
CMakeLists.txt
LLVMBuild.txt
Makefile