Lang Hames 58c62e1dba [ADT] Fix PR20728 - Incorrect APFloat::fusedMultiplyAdd results for x86_fp80. ... As detailed at http://llvm.org/PR20728, due to an internal overflow in APFloat::multiplySignificand the APFloat::fusedMultiplyAdd method can return incorrect results for x87DoubleExtended (x86_fp80) values. This commonly manifests as incorrect constant folding of libm fmal calls on x86. E.g. fmal(1.0L, 1.0L, 3.0L) == 0.0L (should be 4.0L) This patch fixes PR20728 by adding an extra bit to the significand for intermediate results of APFloat::multiplySignificand, avoiding the overflow. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@222374 91177308-0d34-0410-b5e6-96231b3b80d8		2014-11-19 19:15:41 +00:00
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ADT	[ADT] Fix PR20728 - Incorrect APFloat::fusedMultiplyAdd results for x86_fp80.	2014-11-19 19:15:41 +00:00
Analysis	CallGraphTest.cpp: Remove invalid tests. ++S might step over F if S == F.	2014-11-18 12:23:19 +00:00
Bitcode	[Bitcode] AtEndOfStream should only check against the size if it's known.	2014-11-13 00:08:41 +00:00
CodeGen	DIE: Pass ownership of children via std::unique_ptr rather than raw pointer.	2014-04-25 20:00:34 +00:00
DebugInfo	[CMake] Update LLVM_LINK_COMPONENTS for each CMakeLists.txt.	2013-12-10 11:13:32 +00:00
ExecutionEngine	[MCJIT] Make repeat calls to MCJIT::getPointerToFunction for declarations safe.	2014-10-22 23:18:42 +00:00
IR	Add unittest for extreme alignments.	2014-10-23 14:45:19 +00:00
LineEditor	[CMake] LineEditorTests: Add Support to link_components.	2014-07-24 11:44:33 +00:00
Linker	Fix the autoconf build.	2014-11-17 21:06:38 +00:00
MC	Dispose disassembler after use in unit test.	2014-11-15 10:53:12 +00:00
Option	Retire llvm::array_endof in favor of non-member std::end.	2014-04-12 16:15:53 +00:00
Support	Fixing some sign comparison warnings from MSVC; NFC.	2014-11-13 13:39:49 +00:00
Transforms	Move the complex address expression out of DIVariable and into an extra	2014-10-01 18:55:02 +00:00
CMakeLists.txt	Invert the MC -> Object dependency.	2014-07-03 02:01:39 +00:00
Makefile	Invert the MC -> Object dependency.	2014-07-03 02:01:39 +00:00
Makefile.unittest	With rpaths being set correctly, SHLIBPATH_VAR is not needed anymore.	2014-02-28 16:16:51 +00:00