Hal Finkel 8def8d9263 Fix BasicTTI::getCmpSelInstrCost to deal with illegal vector types ... The default implementation of getCmpSelInstrCost, which provides the cost of icmp/fcmp/select instructions, did not deal sensibly with illegal vector types that were scalarized. We'd ask for the legalization cost of the vector type, which would return something like (4, f64) given an input of <4 x double>, and we'd then check the TLI status of the ISD opcode on that scalar type. This would result in querying (ISD::VSELECT, f64), for example. Amusingly enough, ISD::VSELECT on scalar types is marked as Legal by default (as with most other operations), and most backends never change this because VSELECT is never generated on scalars. However, seeing the resulting operation as Legal, we'd neglect to add the scalarization cost before returning. The result is that we'd grossly under-estimate the cost of cmps/selects on illegal vector types. Now, if type legalization clearly results in scalarization, we skip the early return and add the scalarization cost. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@217859 91177308-0d34-0410-b5e6-96231b3b80d8		2014-09-16 04:35:50 +00:00
..
Analysis	InstSimplify: Simplify trivial and/or of icmps	2014-09-15 08:15:28 +00:00
AsmParser	Make CallingConv::ID an alias of "unsigned".	2014-09-10 18:00:17 +00:00
Bitcode	Use IntrusiveRefCntPtr to manage the lifetime of BitCodeAbbrevs.	2014-09-15 15:44:14 +00:00
CodeGen	Fix BasicTTI::getCmpSelInstrCost to deal with illegal vector types	2014-09-16 04:35:50 +00:00
DebugInfo	Fix a non-virtual destructor warning introduced in r217747.	2014-09-15 10:38:13 +00:00
ExecutionEngine	Add return that was lost somehow in my last commit.	2014-09-15 19:25:55 +00:00
IR	Use dyn_cast<> instead of isa<> and cast<>	2014-09-15 17:56:51 +00:00
IRReader
LineEditor
Linker	Merge alignment of common GlobalValue.	2014-09-09 17:48:18 +00:00
LTO	Add doInitialization/doFinalization to DataLayoutPass.	2014-09-10 21:27:43 +00:00
MC	Fix the build for MSVC, it doesn't support extended sizeof	2014-09-15 20:28:38 +00:00
Object	[llvm-objdump] for mach-o add -bind, -lazy-bind, and -weak-bind options	2014-09-16 01:41:51 +00:00
Option	Add an overload of getLastArgNoClaim taking two OptSpecifiers.	2014-09-12 19:42:53 +00:00
ProfileData	llvm-profdata: Avoid undefined behaviour when reading raw profiles	2014-09-12 21:22:55 +00:00
Support	Fix memory leak in error paths in YAMLTraits by using unique_ptr	2014-09-15 18:39:24 +00:00
TableGen
Target	[x86] Remove a FIXME that doesn't make any sense. Only the lanes feeding	2014-09-16 02:16:42 +00:00
Transforms	Remove dead code in SimplifyCFG	2014-09-15 20:48:13 +00:00
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LLVMBuild.txt
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