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Commit Graph

87 Commits

Author SHA1 Message Date
Evan Cheng
11d2c09adc Replace all target specific implicit def instructions with a target independent one: TargetInstrInfo::IMPLICIT_DEF.
llvm-svn: 48380
2008-03-15 00:03:38 +00:00
Evan Cheng
5beb036eab Don't fill eh frames even though these are text sections.
llvm-svn: 47765
2008-02-29 19:36:59 +00:00
Evan Cheng
f8b1257d2e Add a quick and dirty "loop aligner pass". x86 uses it to align its loops to 16-byte boundaries.
llvm-svn: 47703
2008-02-28 00:43:03 +00:00
Evan Cheng
ca7db1ca34 Unbreak teh build.
llvm-svn: 46729
2008-02-05 00:25:13 +00:00
Evan Cheng
c57ec111f2 SDIsel processes llvm.dbg.declare by recording the variable debug information descriptor and its corresponding stack frame index in MachineModuleInfo. This only works if the local variable is "homed" in the stack frame. It does not work for byval parameter, etc.
Added ISD::DECLARE node type to represent llvm.dbg.declare intrinsic. Now the intrinsic calls are lowered into a SDNode and lives on through out the codegen passes.
For now, since all the debugging information recording is done at isel time, when a ISD::DECLARE node is selected, it has the side effect of also recording the variable. This is a short term solution that should be fixed in time.

llvm-svn: 46659
2008-02-02 04:07:54 +00:00
Evan Cheng
d6222fc11d Remove the nasty LABEL hack with a much less evil one. Now llvm.dbg.func.start implies a stoppoint is set. SelectionDAGISel records a new source line but does not create a ISD::LABEL node for this special stoppoint. Asm printer will magically print this label. This ensures nothing is emitted before.
llvm-svn: 46635
2008-02-01 09:10:45 +00:00
Gordon Henriksen
88a41c672b Enabling the target-independent garbage collection infrastructure by hooking it
up to the various compiler pipelines.

This doesn't actually add support for any GC algorithms, which means it 
temporarily breaks a few tests. To be fixed shortly.

llvm-svn: 45669
2008-01-07 01:30:38 +00:00
Chris Lattner
96167aa93c Rename SSARegMap -> MachineRegisterInfo in keeping with the idea
that "machine" classes are used to represent the current state of
the code being compiled.  Given this expanded name, we can start 
moving other stuff into it.  For now, move the UsedPhysRegs and
LiveIn/LoveOuts vectors from MachineFunction into it.

Update all the clients to match.

This also reduces some needless #includes, such as MachineModuleInfo
from MachineFunction.

llvm-svn: 45467
2007-12-31 04:13:23 +00:00
Chris Lattner
e0b1ee937a Don't attribute in file headers anymore. See llvmdev for the
discussion of this change.  Boy are my fingers tired. ;-)

llvm-svn: 45411
2007-12-29 19:59:42 +00:00
Anton Korobeynikov
58298cb9cc Fix PIC jump table codegen on x86-32/linux. In fact, such thing should be applied
to all targets uses GOT-relative offsets for PIC (Alpha?)

llvm-svn: 44108
2007-11-14 09:18:41 +00:00
Evan Cheng
7d8deec92f Much improved pic jumptable codegen:
Then:
        call    "L1$pb"
"L1$pb":
        popl    %eax
		...
LBB1_1: # entry
        imull   $4, %ecx, %ecx
        leal    LJTI1_0-"L1$pb"(%eax), %edx
        addl    LJTI1_0-"L1$pb"(%ecx,%eax), %edx
        jmpl    *%edx

        .align  2
        .set L1_0_set_3,LBB1_3-LJTI1_0
        .set L1_0_set_2,LBB1_2-LJTI1_0
        .set L1_0_set_5,LBB1_5-LJTI1_0
        .set L1_0_set_4,LBB1_4-LJTI1_0
LJTI1_0:
        .long    L1_0_set_3
        .long    L1_0_set_2

Now:
        call    "L1$pb"
"L1$pb":
        popl    %eax
		...
LBB1_1: # entry
        addl    LJTI1_0-"L1$pb"(%eax,%ecx,4), %eax
        jmpl    *%eax

		.align  2
		.set L1_0_set_3,LBB1_3-"L1$pb"
		.set L1_0_set_2,LBB1_2-"L1$pb"
		.set L1_0_set_5,LBB1_5-"L1$pb"
		.set L1_0_set_4,LBB1_4-"L1$pb"
LJTI1_0:
        .long    L1_0_set_3
        .long    L1_0_set_2

llvm-svn: 43924
2007-11-09 01:32:10 +00:00
Duncan Sands
d1bdbd010b Eliminate the remaining uses of getTypeSize. This
should only effect x86 when using long double.  Now
12/16 bytes are output for long double globals (the
exact amount depends on the alignment).  This brings
globals in line with the rest of LLVM: the space
reserved for an object is now always the ABI size.
One tricky point is that only 10 bytes should be
output for long double if it is a field in a packed
struct, which is the reason for the additional
argument to EmitGlobalConstant.

llvm-svn: 43688
2007-11-05 00:04:43 +00:00
Evan Cheng
33df6a6bed Revert 42908 for now.
llvm-svn: 42960
2007-10-14 05:57:21 +00:00
Dan Gohman
a75e4a62e6 Change the names used for internal labels to use the current
function symbol name instead of a codegen-assigned function
number.

Thanks Evan! :-)

llvm-svn: 42908
2007-10-12 14:53:36 +00:00
Dan Gohman
d005faa65d Add a routine for emitting .file directives, for setting up
file numbers to use with .loc directives.

llvm-svn: 42272
2007-09-24 20:58:13 +00:00
Bill Wendling
bfd2f2f6d7 Don't pass back a reference to a temporary.
llvm-svn: 42086
2007-09-18 09:10:16 +00:00
Bill Wendling
537b869514 The exception handling function info should be reset for each new
function. The information isn't used heavily -- it's only used at the end
of exception handling emission -- so there's no need to cache it.

llvm-svn: 42078
2007-09-18 05:03:44 +00:00
Bill Wendling
803e0d9970 Objective-C was generating EH frame info like this:
"_-[NSString(local) isNullOrNil]".eh = 0
        .no_dead_strip  "_-[NSString(local) isNullOrNil]".eh

The ".eh" should be inside the quotes.

llvm-svn: 42074
2007-09-18 01:47:22 +00:00
Reid Spencer
3e54e72ef1 Fix minor doxygen nits.
llvm-svn: 40854
2007-08-05 20:06:04 +00:00
Evan Cheng
4b747bb6a0 EmitAlignment() also emits optional fill value.
llvm-svn: 40500
2007-07-25 23:35:07 +00:00
Chris Lattner
72e07238ba Fix the asmprinter so that a globalvalue can specify an explicit alignment
smaller than the preferred alignment, but so that the target can actually
specify a minimum alignment if needed.  This fixes some objc protocol
failures Devang tracked down.

llvm-svn: 37373
2007-05-31 18:57:45 +00:00
Devang Patel
cd45427a87 Drop 'const'
llvm-svn: 36662
2007-05-03 01:11:54 +00:00
Devang Patel
8ee9065162 Use 'static const char' instead of 'static const int'.
Due to darwin gcc bug, one version of darwin linker coalesces
static const int, which defauts PassID based pass identification.

llvm-svn: 36652
2007-05-02 21:39:20 +00:00
Devang Patel
38a66bc82e Do not use typeinfo to identify pass in pass manager.
llvm-svn: 36632
2007-05-01 21:15:47 +00:00
Anton Korobeynikov
25dc9a61cb Implement aliases. This fixes PR1017 and it's dependent bugs. CFE part
will follow.

llvm-svn: 36435
2007-04-25 14:27:10 +00:00
Jim Laskey
bce43df323 Add support for changes in DwarfWriter.
llvm-svn: 34478
2007-02-21 22:47:38 +00:00
Jim Laskey
23ed7d2625 Make LABEL a builtin opcode.
llvm-svn: 33537
2007-01-26 14:34:52 +00:00
Jim Laskey
0e387f9cf0 Migrate print routines to asm to be shared by exception handling.
llvm-svn: 33498
2007-01-25 15:12:02 +00:00
Jim Laskey
dabb50be28 Use asm printer to emit alignment
llvm-svn: 33485
2007-01-24 13:12:32 +00:00
Rafael Espindola
08c0825f18 move ExtWeakSymbols to AsmPrinter
llvm-svn: 32648
2006-12-18 03:37:18 +00:00
Evan Cheng
83b0827a2e Add a printSetLabel that takes two id's.
llvm-svn: 31347
2006-11-01 09:23:08 +00:00
Anton Korobeynikov
9867bf5eaf Unbreaking static ctors patch.
Defaulting second arguments of SwitchTo*Section, this should make things
somehow clearer.

llvm-svn: 31306
2006-10-31 06:11:06 +00:00
Devang Patel
0691019e12 Move getPreferredAlignmentLog from AsmPrinter to TargetData
llvm-svn: 31171
2006-10-24 20:32:14 +00:00
Jim Laskey
37679253ae Clean up interface to getGlobalLinkName.
llvm-svn: 31001
2006-10-17 17:17:24 +00:00
Jim Laskey
620df3ea5f Basic support for getGlobalLinkName.
llvm-svn: 30997
2006-10-17 13:41:07 +00:00
Chris Lattner
068190eb91 Pass the MachineFunction into EmitJumpTableInfo.
llvm-svn: 30742
2006-10-05 03:01:21 +00:00
Chris Lattner
da8321b52e move getSectionForFunction to AsmPrinter.
llvm-svn: 30734
2006-10-05 02:41:43 +00:00
Chris Lattner
ddf92db1ca Add support for ${:comment}, which expands to the current target's comment
character, and ${:uid} which expands to a unique ID for the MachineInstr.
More can be added if/when they are needed.

llvm-svn: 30619
2006-09-26 23:59:50 +00:00
Chris Lattner
167aa73273 Add support for targets that want to do something with the llvm.used list,
because they have an aggressive linker that does dead code stripping.

llvm-svn: 30604
2006-09-26 03:38:18 +00:00
Evan Cheng
499d77553a Added support for machine specific constantpool values. These are useful for
representing expressions that can only be resolved at link time, etc.

llvm-svn: 30278
2006-09-12 21:00:35 +00:00
Jim Laskey
9da25f6119 Make target asm info a property of the target machine.
llvm-svn: 30162
2006-09-07 22:06:40 +00:00
Jim Laskey
6b86ef852c Separate target specific asm properties from the asm printers.
llvm-svn: 30126
2006-09-06 18:34:40 +00:00
Nate Begeman
0e92042770 Emit .set directives for jump table entries when possible, which reduces
the number of relocations in object files, shrinkifying them.

llvm-svn: 29650
2006-08-12 21:29:52 +00:00
Nate Begeman
3d5f5b4e8b Support jump tables when in PIC relocation model
llvm-svn: 29318
2006-07-27 01:13:04 +00:00
Evan Cheng
6ec6e10b48 Add support to print 4-, 8-, and 16- byte constant literals in special
sections. e.g. On Darwin that would be .literal4 and .literal8.

llvm-svn: 28977
2006-06-29 00:26:09 +00:00
Evan Cheng
6572fa9869 Allow EmitConstantPool to be redefined by derived classes.
llvm-svn: 28952
2006-06-28 00:52:32 +00:00
Jim Laskey
a8284f65e1 Add and sort "sections" in debug lines. This always stepping through
code in sections other than ".text", including weak sections like ctors and
dtors.

llvm-svn: 28909
2006-06-23 12:51:53 +00:00
Reid Spencer
55df120f95 Fix some doxygen usage in these headers.
llvm-svn: 28394
2006-05-19 19:07:54 +00:00
Chris Lattner
9669e5ece6 Implement MASM sections correctly, without a "has masm sections flag" and a
bunch of special case code.

llvm-svn: 28193
2006-05-09 05:33:28 +00:00
Chris Lattner
a5f13d3120 Split SwitchSection into the SwitchTo{Text|Data}Section functions, to better
support assemblers that distinguish the two.

llvm-svn: 28183
2006-05-09 04:59:30 +00:00