llvm/lib/IR
David Blaikie 32b845d223 [opaque pointer type] Add textual IR support for explicit type parameter to the call instruction
See r230786 and r230794 for similar changes to gep and load
respectively.

Call is a bit different because it often doesn't have a single explicit
type - usually the type is deduced from the arguments, and just the
return type is explicit. In those cases there's no need to change the
IR.

When that's not the case, the IR usually contains the pointer type of
the first operand - but since typed pointers are going away, that
representation is insufficient so I'm just stripping the "pointerness"
of the explicit type away.

This does make the IR a bit weird - it /sort of/ reads like the type of
the first operand: "call void () %x(" but %x is actually of type "void
()*" and will eventually be just of type "ptr". But this seems not too
bad and I don't think it would benefit from repeating the type
("void (), void () * %x(" and then eventually "void (), ptr %x(") as has
been done with gep and load.

This also has a side benefit: since the explicit type is no longer a
pointer, there's no ambiguity between an explicit type and a function
that returns a function pointer. Previously this case needed an explicit
type (eg: a function returning a void() function was written as
"call void () () * @x(" rather than "call void () * @x(" because of the
ambiguity between a function returning a pointer to a void() function
and a function returning void).

No ambiguity means even function pointer return types can just be
written alone, without writing the whole function's type.

This leaves /only/ the varargs case where the explicit type is required.

Given the special type syntax in call instructions, the regex-fu used
for migration was a bit more involved in its own unique way (as every
one of these is) so here it is. Use it in conjunction with the apply.sh
script and associated find/xargs commands I've provided in rr230786 to
migrate your out of tree tests. Do let me know if any of this doesn't
cover your cases & we can iterate on a more general script/regexes to
help others with out of tree tests.

About 9 test cases couldn't be automatically migrated - half of those
were functions returning function pointers, where I just had to manually
delete the function argument types now that we didn't need an explicit
function type there. The other half were typedefs of function types used
in calls - just had to manually drop the * from those.

import fileinput
import sys
import re

pat = re.compile(r'((?:=|:|^|\s)call\s(?:[^@]*?))(\s*$|\s*(?:(?:\[\[[a-zA-Z0-9_]+\]\]|[@%](?:(")?[\\\?@a-zA-Z0-9_.]*?(?(3)"|)|{{.*}}))(?:\(|$)|undef|inttoptr|bitcast|null|asm).*$)')
addrspace_end = re.compile(r"addrspace\(\d+\)\s*\*$")
func_end = re.compile("(?:void.*|\)\s*)\*$")

def conv(match, line):
  if not match or re.search(addrspace_end, match.group(1)) or not re.search(func_end, match.group(1)):
    return line
  return line[:match.start()] + match.group(1)[:match.group(1).rfind('*')].rstrip() + match.group(2) + line[match.end():]

for line in sys.stdin:
  sys.stdout.write(conv(re.search(pat, line), line))

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@235145 91177308-0d34-0410-b5e6-96231b3b80d8
2015-04-16 23:24:18 +00:00
..
AsmWriter.cpp [opaque pointer type] Add textual IR support for explicit type parameter to the call instruction 2015-04-16 23:24:18 +00:00
AttributeImpl.h [IR] Introduce a dereferenceable_or_null(N) attribute. 2015-04-16 20:29:50 +00:00
Attributes.cpp [IR] Introduce a dereferenceable_or_null(N) attribute. 2015-04-16 20:29:50 +00:00
AutoUpgrade.cpp AutoUpgrade: Remove obsolete dbg.declare/value upgrade 2015-04-06 17:17:47 +00:00
BasicBlock.cpp Return iterator from BasicBlock::eraseFromParent 2015-04-03 01:20:33 +00:00
CMakeLists.txt uselistorder: Remove the global bits 2015-04-15 03:14:06 +00:00
Comdat.cpp IR: Add COMDATs to the IR 2014-06-27 18:19:56 +00:00
ConstantFold.cpp [opaque pointer type] API migration for GEP constant factories 2015-04-02 18:55:32 +00:00
ConstantFold.h Canonicalize header guards into a common format. 2014-08-13 16:26:38 +00:00
ConstantRange.cpp [ConstantRange] Split makeICmpRegion in two. 2015-03-18 00:41:24 +00:00
Constants.cpp [opaque pointer type] API migration for GEP constant factories 2015-04-02 18:55:32 +00:00
ConstantsContext.h Removing LLVM_DELETED_FUNCTION, as MSVC 2012 was the last reason for requiring the macro. NFC; LLVM edition. 2015-02-15 22:54:22 +00:00
Core.cpp [opaque pointer type] The last of the GEP IRBuilder API migrations 2015-04-05 22:41:44 +00:00
DataLayout.cpp COFF: Let globals with private linkage reside in their own section 2015-03-17 23:54:51 +00:00
DebugInfo.cpp DebugInfo: DIRef<> => TypedDebugNodeRef<> 2015-04-16 02:24:01 +00:00
DebugInfoMetadata.cpp DebugInfo: Remove 'inlinedAt:' field from MDLocalVariable 2015-04-15 22:29:27 +00:00
DebugLoc.cpp DebugInfo: Allow DebugLocs to be constructed from const 2015-04-16 16:56:29 +00:00
DiagnosticInfo.cpp DebugInfo: Gut DILocation 2015-04-14 01:35:55 +00:00
DiagnosticPrinter.cpp Fix typos in comments, NFC 2014-08-29 21:53:01 +00:00
DIBuilder.cpp DebugInfo: Remove DIDescriptor from the DIBuilder API 2015-04-16 16:36:23 +00:00
Dominators.cpp [PM] Port domtree to the new pass manager (at last). 2015-01-14 10:19:28 +00:00
Function.cpp [IR] Introduce a dereferenceable_or_null(N) attribute. 2015-04-16 20:29:50 +00:00
GCOV.cpp Remove more superfluous .str() and replace std::string concatenation with Twine. 2015-03-30 15:42:36 +00:00
Globals.cpp Remove getDataLayout() from Instruction/GlobalValue/BasicBlock/Function 2015-03-03 22:01:13 +00:00
GVMaterializer.cpp [Layering] Move GVMaterializer.h into the IR library where its 2014-03-06 03:50:29 +00:00
InlineAsm.cpp Silence sign compare warning. NFC. 2015-03-29 20:49:03 +00:00
Instruction.cpp Return iterator from Instruction::eraseFromParent. 2015-04-02 00:03:07 +00:00
Instructions.cpp [IR] Introduce a dereferenceable_or_null(N) attribute. 2015-04-16 20:29:50 +00:00
IntrinsicInst.cpp IR: Split Metadata from Value 2014-12-09 18:38:53 +00:00
IRBuilder.cpp [opaque pointer type] More GEP IRBuilder API migrations... 2015-04-03 21:33:42 +00:00
IRPrintingPasses.cpp uselistorder: Pull the bit through PrintModulePass 2015-04-15 02:38:06 +00:00
LegacyPassManager.cpp Use 'override/final' instead of 'virtual' for overridden methods 2015-04-11 02:11:45 +00:00
LLVMBuild.txt
LLVMContext.cpp Fix LLVMContext to match what MDKind names that the LL parser permits. Fixes PR21799! 2014-12-11 02:10:28 +00:00
LLVMContextImpl.cpp Revert GCStrategy ownership changes 2015-01-26 18:26:35 +00:00
LLVMContextImpl.h DebugInfo: Remove 'inlinedAt:' field from MDLocalVariable 2015-04-15 22:29:27 +00:00
Makefile Actually update the CMake and Makefile builds correctly, and update the 2013-01-02 12:09:16 +00:00
Mangler.cpp Revert "Address review comments" 2015-03-17 20:40:21 +00:00
MDBuilder.cpp [IC] Turn non-null MD on pointer loads to range MD on integer loads. 2015-02-25 05:10:25 +00:00
Metadata.cpp IR: Enable uniquing callbacks during MDNode::replaceWithUniqued() 2015-03-31 20:50:50 +00:00
MetadataImpl.h Added missing header for the explicit dependency on MDNode. 2015-02-04 00:20:52 +00:00
MetadataTracking.cpp IR: Store RAUW support and Context in the same pointer, NFC 2015-01-19 19:02:06 +00:00
Module.cpp Be lazy about loading metadata in IRObjectFile. 2015-03-13 21:54:20 +00:00
module.modulemap [modules] Add module maps for LLVM. These are not quite ready for prime-time 2014-05-21 02:46:14 +00:00
Pass.cpp Refactoring cl::parser construction and initialization. 2015-01-22 21:01:12 +00:00
PassManager.cpp [PM] Push the debug option for the new pass manager into the opt tool 2015-01-13 22:42:38 +00:00
PassRegistry.cpp Revert r231276 (including r231277): Add a lock() function in PassRegistry to speed up multi-thread synchronization. 2015-03-05 17:53:00 +00:00
Statepoint.cpp Add invoke related functionality into StatepointSite classes. 2015-02-19 11:02:11 +00:00
SymbolTableListTraitsImpl.h Canonicalize header guards into a common format. 2014-08-13 16:26:38 +00:00
Type.cpp [slp] Fix a nasty bug in the SLP vectorizer that Joerg pointed out. 2015-02-12 02:30:56 +00:00
TypeFinder.cpp Fix Value dangling reference debug output 2015-03-10 23:55:38 +00:00
Use.cpp Fix a URL (NFC) 2014-08-21 21:09:24 +00:00
User.cpp IR: Cleanup comments for Value, User, and MDNode 2014-10-15 20:28:31 +00:00
Value.cpp [CallSite] Make construction from Value* (or Instruction*) explicit. 2015-04-10 14:50:08 +00:00
ValueSymbolTable.cpp IR: Split Metadata from Value 2014-12-09 18:38:53 +00:00
ValueTypes.cpp Add v4f16 to supported value types. 2013-10-03 03:29:21 +00:00
Verifier.cpp DebugInfo: Remove 'inlinedAt:' field from MDLocalVariable 2015-04-15 22:29:27 +00:00