Ulrich Weigand edaa58ee66 [PowerPC] Clean up generation of ha16() / lo16() markers ... When targeting the Darwin assembler, we need to generate markers ha16() and lo16() to designate the high and low parts of a (symbolic) immediate. This is necessary not just for plain symbols, but also for certain symbolic expression, typically along the lines of ha16(A - B). The latter doesn't work when simply using VariantKind flags on the symbol reference. This is why the current back-end uses hacks (explicitly called out as such via multiple FIXMEs) in the symbolLo/symbolHi print methods. This patch uses target-defined MCExpr codes to represent the Darwin ha16/lo16 constructs, following along the lines of the equivalent solution used by the ARM back end to handle their :upper16: / :lower16: markers. This allows us to get rid of special handling both in the symbolLo/symbolHi print method and in the common code MCExpr::print routine. Instead, the ha16 / lo16 markers are printed simply in a custom print routine for the target MCExpr types. (As a result, the symbolLo/symbolHi print methods can now replaced by a single printS16ImmOperand routine that also handles symbolic operands.) The patch also provides a EvaluateAsRelocatableImpl routine to handle ha16/lo16 constructs. This is not actually used at the moment by any in-tree code, but is provided as it makes merging into David Fang's out-of-tree Mach-O object writer simpler. Since there is no longer any need to treat VK_PPC_GAS_HA16 and VK_PPC_DARWIN_HA16 differently, they are merged into a single VK_PPC_ADDR16_HA (and likewise for the _LO16 types). git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@182616 91177308-0d34-0410-b5e6-96231b3b80d8		2013-05-23 22:26:41 +00:00
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Analysis	isKnownToBeAPowerOfTwo: (X & Y) + Y is a power of 2 or zero if y is also.	2013-05-18 19:30:37 +00:00
Archive
AsmParser	Add ArrayRef constructor from None, and do the cleanups that this constructor enables	2013-05-05 00:40:33 +00:00
Bitcode	Micro-optimization: don't shift an entire bitcode record over to get the code.	2013-05-10 22:17:10 +00:00
CodeGen	Fix PR16110: Handle DBG_VALUE in ConnectedVNInfoEqClasses::Distribute().	2013-05-23 17:02:23 +00:00
DebugInfo	libDebugInfo depends on libObject nowadays.	2013-05-09 13:48:26 +00:00
ExecutionEngine	Expose the RTDyldMemoryManager through the C API. This allows clients of	2013-05-22 02:46:43 +00:00
IR	Solidify the assumption that a DW_TAG_subprogram's type is a DW_TAG_subroutine_type	2013-05-22 23:22:18 +00:00
IRReader	Measure time that IR parsing took as part of the -time-passes measurement.	2013-04-03 15:33:45 +00:00
Linker	Fix a performance bug in the Linker.	2013-05-04 05:05:18 +00:00
MC	[PowerPC] Clean up generation of ha16() / lo16() markers	2013-05-23 22:26:41 +00:00
Object	Convert obj2yaml to use yamlio.	2013-05-17 22:58:42 +00:00
Option
Support	Add cmake bits for md5.	2013-05-21 01:30:38 +00:00
TableGen
Target	[PowerPC] Clean up generation of ha16() / lo16() markers	2013-05-23 22:26:41 +00:00
Transforms	More symbols that should be static.	2013-05-23 16:09:15 +00:00
CMakeLists.txt
LLVMBuild.txt
Makefile