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Simon Pilgrim 0ea8d275cc [X86][SSE] Reimplement SSE fp2si conversion intrinsics instead of using generic IR 
D20859 and D20860 attempted to replace the SSE (V)CVTTPS2DQ and VCVTTPD2DQ truncating conversions with generic IR instead.

It turns out that the behaviour of these intrinsics is different enough from generic IR that this will cause problems, INF/NAN/out of range values are guaranteed to result in a 0x80000000 value - which plays havoc with constant folding which converts them to either zero or UNDEF. This is also an issue with the scalar implementations (which were already generic IR and what I was trying to match).

This patch changes both scalar and packed versions back to using x86-specific builtins.

It also deals with the other scalar conversion cases that are runtime rounding mode dependent and can have similar issues with constant folding.

A companion clang patch is at D22105

Differential Revision: https://reviews.llvm.org/D22106

llvm-svn: 275981
 		2016-07-19 15:07:43 +00:00
..
AsmWriter.cpp [codeview] Add DISubprogram::ThisAdjustment 2016-07-01 02:41:21 +00:00
AttributeImpl.h Apply clang-tidy's modernize-loop-convert to most of lib/IR. 2016-06-26 14:10:56 +00:00
Attributes.cpp Fix -Wreturn-type with gcc 4.8 and libc++ 2016-07-18 22:12:46 +00:00
AttributesCompatFunc.td Provide a way to specify inliner's attribute compatibility and merging. 2015-12-22 23:57:37 +00:00
AutoUpgrade.cpp [X86][SSE] Reimplement SSE fp2si conversion intrinsics instead of using generic IR 2016-07-19 15:07:43 +00:00
BasicBlock.cpp Apply clang-tidy's modernize-loop-convert to most of lib/IR. 2016-06-26 14:10:56 +00:00
CMakeLists.txt Move ProfileSummary to IR. 2016-05-19 21:07:12 +00:00
Comdat.cpp [NFC] Remove some dead code: 2016-05-11 16:38:40 +00:00
ConstantFold.cpp [ConstantFold] Don't incorrectly infer inbounds on array GEP 2016-07-13 03:24:41 +00:00
ConstantFold.h [NFC] Header cleanup 2016-04-18 09:17:29 +00:00
ConstantRange.cpp fix formatting, typo; NFC 2016-06-19 17:20:27 +00:00
Constants.cpp Apply clang-tidy's modernize-loop-convert to most of lib/IR. 2016-06-26 14:10:56 +00:00
ConstantsContext.h Increase SmallVector size for ConstantUniqueMap::getHashValue() (NFC) 2016-04-19 00:17:55 +00:00
Core.cpp Apply clang-tidy's modernize-loop-convert to most of lib/IR. 2016-06-26 14:10:56 +00:00
DIBuilder.cpp [DIBuilder] Remove dead code. NFC. 2016-07-02 13:18:38 +00:00
DataLayout.cpp [IR] Make getIndexedOffsetInType return a signed result 2016-07-13 03:42:38 +00:00
DebugInfo.cpp StripDebugInfo: uses isa<DbgInfoIntrinsic> instead of matching against llvm.dbg.* (NFC) 2016-05-14 04:58:35 +00:00
DebugInfoMetadata.cpp [codeview] Add DISubprogram::ThisAdjustment 2016-07-01 02:41:21 +00:00
DebugLoc.cpp [NFC] Header cleanup 2016-04-18 09:17:29 +00:00
DiagnosticInfo.cpp [OptRemark,LDist] RFC: Add hotness attribute 2016-07-15 17:23:20 +00:00
DiagnosticPrinter.cpp MIR Serialization: Connect the machine function analysis pass to the MIR parser. 2015-06-15 20:30:22 +00:00
Dominators.cpp [PM] Remove support for omitting the AnalysisManager argument to new 2016-06-17 00:11:01 +00:00
Function.cpp IR: Sort generic intrinsics before target specific ones 2016-07-15 16:31:37 +00:00
GCOV.cpp llvm-cov: Fix reading gcov data that does not have function names 2016-02-08 22:49:40 +00:00
GVMaterializer.cpp
…
Globals.cpp [IR] [DAE] Copy comdats during DAE, and don't copy comdats in GlobalObject::copyAttributesFrom. 2016-06-15 23:20:15 +00:00
IRBuilder.cpp Support arbitrary addrspace pointers in masked load/store intrinsics 2016-06-28 18:27:25 +00:00
IRPrintingPasses.cpp [PM] Remove support for omitting the AnalysisManager argument to new 2016-06-17 00:11:01 +00:00
InlineAsm.cpp [InlineAsm] Avoid creating extra string instances in ConstraintInfo::Parse() 2016-05-23 13:58:04 +00:00
Instruction.cpp [IR] andIRFlags and copyIRFlags needs to handle GEP 2016-07-15 05:02:31 +00:00
Instructions.cpp Add getReturnedArgOperand to Call/InvokeInst, CallSite 2016-07-10 23:01:32 +00:00
IntrinsicInst.cpp [NFC] Remove some dead code: 2016-05-11 16:38:40 +00:00
LLVMBuild.txt
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LLVMContext.cpp [OptRemark,LDist] RFC: Add hotness attribute 2016-07-15 17:23:20 +00:00
LLVMContextImpl.cpp [OptRemark,LDist] RFC: Add hotness attribute 2016-07-15 17:23:20 +00:00
LLVMContextImpl.h [OptRemark,LDist] RFC: Add hotness attribute 2016-07-15 17:23:20 +00:00
LegacyPassManager.cpp Remove doInitialization() and doFinalization() member declarations without definitions. 2016-04-28 19:21:30 +00:00
MDBuilder.cpp Fix the assertion failure caused by http://reviews.llvm.org/D22118 2016-07-11 17:36:02 +00:00
Mangler.cpp Update to use new name alignTo(). 2016-01-14 21:06:47 +00:00
Metadata.cpp Fix the assertion failure caused by http://reviews.llvm.org/D22118 2016-07-11 17:36:02 +00:00
MetadataImpl.h DI: Disallow uniquable DICompileUnits 2015-08-03 17:26:41 +00:00
Module.cpp Remove interface to get/set MaxFunctionCount 2016-06-20 21:36:38 +00:00
ModuleSummaryIndex.cpp [ThinLTO] Introduce typedef for commonly-used map type (NFC) 2016-04-25 21:09:51 +00:00
Operator.cpp [opaque pointer types] [NFC] GEP: replace get(Pointer)ElementType uses with get{Source,Result}ElementType. 2016-01-19 17:28:00 +00:00
OptBisect.cpp Removing unused function. 2016-04-22 22:24:20 +00:00
Pass.cpp Re-commit optimization bisect support (r267022) without new pass manager support. 2016-04-22 22:06:11 +00:00
PassManager.cpp [PM] Run clang-format over various parts of the new pass manager code 2016-06-17 07:15:29 +00:00
PassRegistry.cpp [NFC] Header cleanup 2016-04-18 09:17:29 +00:00
ProfileSummary.cpp Reapply r271728 after adding move cobstructor for ProfileSummaryInfo 2016-06-03 22:54:26 +00:00
Statepoint.cpp Introduce an GCRelocateInst class [NFC] 2016-04-12 18:05:10 +00:00
SymbolTableListTraitsImpl.h IR: Remove implicit iterator conversions from lib/IR, NFC 2015-10-08 23:49:46 +00:00
Type.cpp fix documentation comments; NFC 2016-06-02 20:37:52 +00:00
TypeFinder.cpp Apply clang-tidy's modernize-loop-convert to most of lib/IR. 2016-06-26 14:10:56 +00:00
Use.cpp Revert r240137 (Fixed/added namespace ending comments using clang-tidy. NFC) 2015-06-23 09:49:53 +00:00
User.cpp [IR] Teach `llvm::User` to co-allocate a descriptor. 2015-09-24 01:00:49 +00:00
Value.cpp BasicAA should look through functions with returned arguments 2016-07-11 01:32:20 +00:00
ValueSymbolTable.cpp Apply clang-tidy's modernize-loop-convert to most of lib/IR. 2016-06-26 14:10:56 +00:00
ValueTypes.cpp Add isScalarInteger helper to EVT/MVT 2016-03-01 18:01:28 +00:00
Verifier.cpp Add writeonly IR attribute 2016-07-04 08:01:29 +00:00