caio/clang-p2996
1
0
Fork 0
Code Issues Pull Requests Actions Packages Projects Releases Wiki Activity
77,236 Commits 1 Branch 0 Tags
c1f69989b142804eb9c4572fbde08fcc052d203c
Commit Graph

322 Commits

Author SHA1 Message Date
Chris Lattner
c968f4475e add target hooks for emitting random gunk before and after the function body. 
llvm-svn: 94732
 2010-01-28 01:58:58 +00:00
Chris Lattner
73de5fbfc3 Give AsmPrinter the most common expected implementation of 
runOnMachineFunction, and switch PPC to use EmitFunctionBody.
The two ppc asmprinters now don't heave to define 
runOnMachineFunction.

llvm-svn: 94722
 2010-01-28 01:28:58 +00:00
Chris Lattner
565896b9eb emit a 0 byte instead of a noop if a function is empty on darwin. 
"0" is nice and target independent.

llvm-svn: 94718
 2010-01-28 01:06:32 +00:00
Chris Lattner
94a946cac4 Remove the argument from EmitJumpTableInfo, because it doesn't need it. 
Move the X86 implementation of function body emission up to 
AsmPrinter::EmitFunctionBody, which works by calling the virtual
EmitInstruction method.

llvm-svn: 94716
 2010-01-28 01:02:27 +00:00
Chris Lattner
2b796241a7 Drop the argument to AsmPrinter::EmitConstantPool and make it virtual. 
Overload it in the ARM backend to do nothing, since is does insane
constant pool emission.

llvm-svn: 94708
 2010-01-28 00:19:24 +00:00
Chris Lattner
cd99546b03 rename printVisibility to EmitVisibility and make it private, 
constify EmitLinkage.

llvm-svn: 94705
 2010-01-28 00:05:10 +00:00
Chris Lattner
bc1e6f0873 add a new AsmPrinter::EmitFunctionEntryLabel virtual function, 
which allows targets to override function entry label emission.
Use it to convert linux/ppc to use EmitFunctionHeader().

llvm-svn: 94667
 2010-01-27 07:21:55 +00:00
Chris Lattner
bac7498f8e mcize label emission for functions. 
llvm-svn: 94624
 2010-01-26 23:53:39 +00:00
Chris Lattner
fc2e376a15 use EmitLinkage for functions as well as globals. One output 
change is that we now use ".linkonce discard" for global variables
instead of ".linkonce samesize".  These should be the same, just less
strict.  If anyone is interested in mcizing MCSection for COFF targets,
this should be easy to fix.

llvm-svn: 94623
 2010-01-26 23:51:52 +00:00
Chris Lattner
dbf5a7617d pull linkage emission code out to a new EmitLinkage function. 
llvm-svn: 94621
 2010-01-26 23:47:12 +00:00
Chris Lattner
22fc38dd4f rearrange some directives, no functionality change. 
llvm-svn: 94620
 2010-01-26 23:41:48 +00:00
Chris Lattner
c7b91156e4 now that enough stuff is constified, move function header printing 
logic up from X86 into the common code.  The other targets will 
hopefully start using this soon.

llvm-svn: 94614
 2010-01-26 23:18:44 +00:00
Chris Lattner
b657c4cdc3 emit jump table an alias ".set" directives through MCStreamer as 
assignments.

.set x, a-b

is the same as:

x = a-b

llvm-svn: 94596
 2010-01-26 21:53:08 +00:00
Chris Lattner
ff234e09b9 Eliminate SetDirective, and replace it with HasSetDirective. 
Default HasSetDirective to true, since most targets have it.

The targets that claim to not have it probably do, or it is
spelled differently. These include Blackfin, Mips, Alpha, and
PIC16.  All of these except pic16 are normal ELF targets, so
they almost certainly have it.

llvm-svn: 94585
 2010-01-26 20:40:54 +00:00
Chris Lattner
547c761dd6 eliminate the TargetLowering::UsesGlobalOffsetTable bool, which is 
subsumed by TargetLowering::getJumpTableEncoding().  Change uses of
it to be more specific.

llvm-svn: 94529
 2010-01-26 06:53:37 +00:00
Chris Lattner
4db603f93b Now that printPICJumpTableSetLabel is not overloaded, 
inline it into its only caller, allowing us to simplify it
and hoist bits out of the loop.

llvm-svn: 94528
 2010-01-26 06:42:44 +00:00
Chris Lattner
8a785d7a67 Move getJTISymbol from MachineJumpTableInfo to MachineFunction, 
which is more convenient, and change getPICJumpTableRelocBaseExpr
to take a MachineFunction to match.

Next, move the X86 code that create a PICBase symbol to
X86TargetLowering::getPICBaseSymbol from 
X86MCInstLower::GetPICBaseSymbol, which was an asmprinter specific 
library.  This eliminates a 'gross hack', and allows us to
implement X86ISelLowering::getPICJumpTableRelocBaseExpr which now
calls it.

This in turn allows us to eliminate the 
X86AsmPrinter::printPICJumpTableSetLabel method, which was the
only overload of printPICJumpTableSetLabel.

llvm-svn: 94526
 2010-01-26 06:28:43 +00:00
Chris Lattner
273735bc5a add a new MachineJumpTableInfo::getJTISymbol method, 
use it to implement the default TargetLowering::getPICJumpTableRelocBaseExpr

llvm-svn: 94523
 2010-01-26 05:58:28 +00:00
Chris Lattner
cc0f734cd0 simplify asmprinter: only emit .set directives when entries have 
EK_LabelDifference32 kind and the target has .set support.  Simplify
X86AsmPrinter::printPICJumpTableSetLabel to make use of recent helpers.

llvm-svn: 94518
 2010-01-26 05:15:20 +00:00
Chris Lattner
279de3ef64 rename printPICJumpTableEntry -> EmitJumpTableEntry, 
make it private and non-virtual.  It handles the non-pic
case too, so just use it, simplifying EmitJumpTableInfo.

llvm-svn: 94517
 2010-01-26 05:10:10 +00:00
Chris Lattner
d051af7551 add a new MachineBasicBlock::getSymbol method, replacing 
the AsmPrinter::GetMBBSymbol.

llvm-svn: 94515
 2010-01-26 04:55:51 +00:00
Chris Lattner
6715952c25 make MachineFunction keep track of its ID and make 
MachineFunctionAnalysis dole them out, instead of having
AsmPrinter do both.  Have the AsmPrinter::SetupMachineFunction
method set the 'AsmPrinter::MF' variable.

llvm-svn: 94509
 2010-01-26 04:35:26 +00:00
Chris Lattner
5fc4160ea3 Add support for target-specific 32-bit custom-lowered 
jump table entries.

llvm-svn: 94505
 2010-01-26 04:05:28 +00:00
Chris Lattner
a7c116016e switch jump table entry emission to be based on EntryKind 
instead of magic variables.

llvm-svn: 94500
 2010-01-26 03:43:22 +00:00
Chris Lattner
b6db2c6b31 Rearrange handling of jump tables. Highlights: 
1. MachineJumpTableInfo is now created lazily for a function the first time
   it actually makes a jump table instead of for every function.
2. The encoding of jump table entries is now described by the
   MachineJumpTableInfo::JTEntryKind enum.  This enum is determined by the
   TLI::getJumpTableEncoding() hook, instead of by lots of code scattered
   throughout the compiler that "knows" that jump table entries are always
   32-bits in pic mode (for example).
3. The size and alignment of jump table entries is now calculated based on
   their kind, instead of at machinefunction creation time.

Future work includes using the EntryKind in more places in the compiler,
eliminating other logic that "knows" the layout of jump tables in various
situations.

llvm-svn: 94470
 2010-01-25 23:26:13 +00:00
Chris Lattner
a4074257ab eliminate redundant argument to EmitJumpTableInfo 
llvm-svn: 94464
 2010-01-25 22:41:33 +00:00
Chris Lattner
3cde760023 mcstreamerize gprel32 emission. 
llvm-svn: 94452
 2010-01-25 21:28:50 +00:00
Chris Lattner
822742fef9 mcize the non-gprel cases of AsmPrinter::printPICJumpTableEntry 
llvm-svn: 94450
 2010-01-25 21:22:22 +00:00
Chris Lattner
00d188f379 handle the _set_ symbol with an MCSymbol. 
llvm-svn: 94449
 2010-01-25 21:17:10 +00:00
Chris Lattner
19bd039896 rename MAI::PICJumpTableDirective to MAI::GPRel32Directive to 
make it clear what it is, instead of how it is used.

llvm-svn: 94448
 2010-01-25 21:10:10 +00:00
Chris Lattner
360aeb76a2 pull the non-pic jump table case out of printPICJumpTableEntry 
and MCize the non-pic case.  Now printPICJumpTableEntry really
is just about printing PIC entries.

llvm-svn: 94446
 2010-01-25 21:01:58 +00:00
Chris Lattner
ccabcd7f85 remove JumpTableDirective, it is always null. 
llvm-svn: 94445
 2010-01-25 20:52:54 +00:00
Chris Lattner
6330d5330e sink an arm specific method out of asmprinter into the ARMAsmPrinter and 
rename it to avoid shadowing.

llvm-svn: 94440
 2010-01-25 19:39:52 +00:00
Chris Lattner
601ef33c77 mcstreamerize .file and .file. This also fixes an issue where the 
normal form of .file would fail if the filename had a weird character
in it.

llvm-svn: 94437
 2010-01-25 18:58:59 +00:00
Chris Lattner
bc696445e1 emit ELF .type directives through MCStreamer instead of doing it textually. 
llvm-svn: 94436
 2010-01-25 18:33:40 +00:00
Chris Lattner
866a539f5f add a comment 
llvm-svn: 94417
 2010-01-25 07:53:05 +00:00
Chris Lattner
91dac6d570 emit the .size directive for global variables on ELF through 
mcstreamer.

llvm-svn: 94416
 2010-01-25 07:52:13 +00:00
Chris Lattner
b1301f7bce mcize lcomm, simplify .comm, extend both to support 64-bit sizes. 
llvm-svn: 94299
 2010-01-23 07:47:02 +00:00
Chris Lattner
76bdea3290 resolve a fixme: the "nonexecutable stack directive" is actually 
a .section.  Switch to it with SwitchSection.

However, I think that this directive should be safe on any ELF target.
If so, we should hoist it up out of the X86 and SystemZ targets.

llvm-svn: 94298
 2010-01-23 07:21:06 +00:00
Chris Lattner
0bfd279b37 mcize visibility directives. 
llvm-svn: 94295
 2010-01-23 06:53:23 +00:00
Chris Lattner
685508cf49 move the various directive enums out of the MCStreamer class 
into a new MCDirectives.h file.

llvm-svn: 94294
 2010-01-23 06:39:22 +00:00
Chris Lattner
d1acffc845 Change constantexpr global variable initializers to convert the constants 
to MCExpr then emit them through MCStreamer with EmitValue.  I think all
global variable initializers are now going through mcstreamer.

llvm-svn: 94293
 2010-01-23 06:17:14 +00:00
Chris Lattner
1deb09c28d mcstreamerize .no_dead_strip and .reference for static ctors/dtors. 
llvm-svn: 94290
 2010-01-23 05:51:36 +00:00
Chris Lattner
4225a7b987 mcize jump table and constant pool entry labels, .local on elf, 
and some .weak directives.

llvm-svn: 94284
 2010-01-23 05:19:23 +00:00
Chris Lattner
68eeb5ec9c emit .ascii and .asciz through MCStreamer. 
llvm-svn: 94282
 2010-01-23 04:54:10 +00:00
Chris Lattner
c3f23b84ea remove one form of EmitString, just use EmitBytes instead. We must 
be careful to add a \0 at the end though, because EmitString didn't
do this.

llvm-svn: 94277
 2010-01-23 03:11:46 +00:00
Chris Lattner
6f2d99df03 move "EOL" from asmprinter to dwarfprinter. It should eventually 
be completely eliminated, but today is not that day.

llvm-svn: 94253
 2010-01-22 23:47:11 +00:00
Chris Lattner
fa82355f33 move uleb printing from asmprinter to dwarfprinter, mcize, 
cleanup and eliminate a bunch more uses of "EOL".

llvm-svn: 94250
 2010-01-22 23:18:42 +00:00
Chris Lattner
2303145081 move sleb printing out of asmprinter into dwarf printer, make clients 
handle the comment better, MCize the non-.sleb case.

llvm-svn: 94244
 2010-01-22 22:56:55 +00:00
Chris Lattner
edf96a4cc3 add a new DwarfPrinter::EmitEncodingByte method which handles 
pretty printing encoding comments and eliminates redundancy on
the client side.  We now get pretty dwarf like this again:

        .byte   255                                         ## @LPStart Encoding = omit
        .byte   0                                           ## @TType Encoding = absptr
        .byte   0x28                                        ## @TType base offset
        .byte   3                                           ## Call site Encoding = udata4
        .byte   0x1a                                        ## Call site table size
...

llvm-svn: 94239
 2010-01-22 22:38:16 +00:00