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Andrew Kaylor a0a1164ce4 Add intrinsics for constrained floating point operations 
This commit introduces a set of experimental intrinsics intended to prevent
optimizations that make assumptions about the rounding mode and floating point
exception behavior.  These intrinsics will later be extended to specify
flush-to-zero behavior.  More work is also required to model instruction
dependencies in machine code and to generate these instructions from clang
(when required by pragmas and/or command line options that are not currently
supported).

Differential Revision: https://reviews.llvm.org/D27028

llvm-svn: 293226
 		2017-01-26 23:27:59 +00:00
..
AArch64 Revert "In visitSTORE, always use FindBetterChain, rather than only when UseAA is enabled." 2017-01-26 16:46:13 +00:00
AMDGPU Revert "In visitSTORE, always use FindBetterChain, rather than only when UseAA is enabled." 2017-01-26 16:46:13 +00:00
ARM Revert "In visitSTORE, always use FindBetterChain, rather than only when UseAA is enabled." 2017-01-26 16:46:13 +00:00
AVR [AVR] Implement TargetLoweing::getRegisterByName 2017-01-07 23:39:47 +00:00
BPF Revert "In visitSTORE, always use FindBetterChain, rather than only when UseAA is enabled." 2017-01-26 16:46:13 +00:00
Generic Revert "Do not verify dominator tree if it has no roots" 2017-01-25 17:15:48 +00:00
Hexagon [Hexagon] Add Hexagon-specific loop idiom recognition pass 2017-01-26 21:41:10 +00:00
Inputs
…
Lanai [lanai] Simplify small section check in LowerGlobalAddress and treat ldata sections specially. 2016-12-15 16:56:16 +00:00
MIR [MIRParser] Allow generic register specification on operand. 2017-01-20 00:29:59 +00:00
MSP430 Revert "In visitSTORE, always use FindBetterChain, rather than only when UseAA is enabled." 2017-01-26 16:46:13 +00:00
Mips Revert "In visitSTORE, always use FindBetterChain, rather than only when UseAA is enabled." 2017-01-26 16:46:13 +00:00
NVPTX Fix some broken CHECK lines. 2017-01-22 20:28:56 +00:00
PowerPC [PPC] cleanup of mayLoad/mayStore flags and memory operands. 2017-01-26 18:59:15 +00:00
SPARC Check for register clobbers when merging a vreg live range with a 2017-01-13 19:08:36 +00:00
SystemZ Revert "In visitSTORE, always use FindBetterChain, rather than only when UseAA is enabled." 2017-01-26 16:46:13 +00:00
Thumb Revert "In visitSTORE, always use FindBetterChain, rather than only when UseAA is enabled." 2017-01-26 16:46:13 +00:00
Thumb2 ARM: match GCC's behaviour for builtins 2017-01-13 16:25:33 +00:00
WebAssembly [WebAssembly] Don't create bitcast-wrappers for varargs. 2017-01-20 20:50:29 +00:00
WinEH Avoid infinite loops in branch folding 2016-12-12 23:05:38 +00:00
X86 Add intrinsics for constrained floating point operations 2017-01-26 23:27:59 +00:00
XCore Revert "In visitSTORE, always use FindBetterChain, rather than only when UseAA is enabled." 2017-01-26 16:46:13 +00:00