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14 Commits

Author SHA1 Message Date
Benjamin Kramer
0e31955b32 Replace push_back(Constructor(foo)) with emplace_back(foo) for non-trivial types 
If the type isn't trivially moveable emplace can skip a potentially
expensive move. It also saves a couple of characters.


Call sites were found with the ASTMatcher + some semi-automated cleanup.

memberCallExpr(
    argumentCountIs(1), callee(methodDecl(hasName("push_back"))),
    on(hasType(recordDecl(has(namedDecl(hasName("emplace_back")))))),
    hasArgument(0, bindTemporaryExpr(
                       hasType(recordDecl(hasNonTrivialDestructor())),
                       has(constructExpr()))),
    unless(isInTemplateInstantiation()))

No functional change intended.

llvm-svn: 238602
 2015-05-29 19:43:39 +00:00
Akira Hatanaka
6a2e278ec7 [MCInstPrinter] Enable MCInstPrinter to change its behavior based on the 
per-function subtarget.

Currently, code-gen passes the default or generic subtarget to the constructors
of MCInstPrinter subclasses (see LLVMTargetMachine::addPassesToEmitFile), which
enables some targets (AArch64, ARM, and X86) to change their instprinter's
behavior based on the subtarget feature bits. Since the backend can now use
different subtargets for each function, instprinter has to be changed to use the
per-function subtarget rather than the default subtarget.

This patch takes the first step towards enabling instprinter to change its
behavior based on the per-function subtarget. It adds a bit "PassSubtarget" to
AsmWriter which tells table-gen to pass a reference to MCSubtargetInfo to the
various print methods table-gen auto-generates. 

I will follow up with changes to instprinters of AArch64, ARM, and X86.

llvm-svn: 233411
 2015-03-27 20:36:02 +00:00
Craig Topper
c1da102d02 Remove dead code. 
llvm-svn: 222781
 2014-11-25 20:11:29 +00:00
Rafael Espindola
299ef825a5 Remove dead code. 
llvm-svn: 196066
 2013-12-02 05:10:04 +00:00
Craig Topper
6c816aee2a Remove 'else' after 'return'. No functional change. 
llvm-svn: 186929
 2013-07-23 06:27:36 +00:00
Craig Topper
e053d0d3ac Remove trailing whitespace. 
llvm-svn: 186928
 2013-07-23 06:25:00 +00:00
Joerg Sonnenberger
839f6c1a88 Remove exception handling usage from tblgen. 
Most places can use PrintFatalError as the unwinding mechanism was not
used for anything other than printing the error. The single exception
was CodeGenDAGPatterns.cpp, where intermediate errors during type
resolution were ignored to simplify incremental platform development.
This use is replaced by an error flag in TreePattern and bailout earlier
in various places if it is set. 

llvm-svn: 166712
 2012-10-25 20:33:17 +00:00
Peter Collingbourne
01246536d9 Move TableGen's parser and entry point into a library 
This is the first step towards splitting LLVM and Clang's tblgen executables.

llvm-svn: 140951
 2011-10-01 16:41:13 +00:00
Chris Lattner
45b1a1649c factor the operand list (and related fields/operations) out of 
CodeGenInstruction into its own helper class.  No functionality change.

llvm-svn: 117893
 2010-11-01 04:03:32 +00:00
Chris Lattner
0a33c519da move FlattenVariants out of AsmMatcherEmitter into a shared 
CodeGenInstruction::FlattenAsmStringVariants method.  Use it
to simplify the code in AsmWriterInst, which now no longer 
needs to worry about variants.

llvm-svn: 117886
 2010-11-01 01:07:14 +00:00
Chris Lattner
cdbca3e8fe change a ton of code to not implicitly use the "O" raw_ostream 
member of AsmPrinter.  Instead, pass it in explicitly.

llvm-svn: 100306
 2010-04-04 04:47:45 +00:00
Sean Callanan
d21eecd9a2 Changed AsmWriterOperand to also include the index of the 
operand into the CodeGenInstruction's list of operands,
which is useful for EDEmitter.  (Still working on PR6219)

llvm-svn: 95759
 2010-02-10 02:27:43 +00:00
Sean Callanan
c1249e600e Fixed some indentation in the AsmWriterInst 
implementation.  Also changed the constructor
so that it does not require a Record, making it
usable by the EDEmitter.

llvm-svn: 95715
 2010-02-09 23:06:35 +00:00
Sean Callanan
1248c51819 Per PR 6219, factored AsmWriterInst and AsmWriterOperand 
out of the AsmWriterEmitter.  This patch does the physical
code movement, but leaves the implementation unchanged. I'll
make any changes necessary to generalize the code in a
separate patch.

llvm-svn: 95697
 2010-02-09 21:50:41 +00:00