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64944 Commits

Author SHA1 Message Date
Chris Lattner 16dc0cd8a2 rip out SectionEndDirectiveSuffix support, only uses by 
the masm backend.  If anyone cares about masm in the future,
we'll have semantic sections it can hang off of.

llvm-svn: 78096
 2009-08-04 20:09:41 +00:00
Jakob Stoklund Olesen f465f06aa4 Don't tamper with <undef> operands in MachineInstr::addRegisterKilled. 
For an undef operand, MO.getReg() is meaningless and we should not use it.
Undef operands should be skipped entirely.

llvm-svn: 78095
 2009-08-04 20:09:25 +00:00
Mike Stump 7551d05358 Will I ever get used to CamelCase? Will I ever like capitols for 
random variables?
  --This line, and those below, will be ignored--

M    lib/CodeGen/CGCXX.cpp

llvm-svn: 78094
 2009-08-04 20:06:48 +00:00
Jakob Stoklund Olesen 6304369c4e LowerSubregsInstructionPass::LowerExtract should not extend the live range of registers. 
When LowerExtract eliminates an EXTRACT_SUBREG with a kill flag, it moves the
kill flag to the place where the sub-register is killed. This can accidentally
overlap with the use of a sibling sub-register, and we have trouble.

In the test case we have this code:

Live Ins: %R0 %R1 %R2
	%R2L<def> = EXTRACT_SUBREG %R2<kill>, 1
	%R2H<def> = LOAD16fi <fi#-1>, 0, Mem:LD(2,4) [FixedStack-1 + 0]
	%R1L<def> = EXTRACT_SUBREG %R1<kill>, 1
	%R0L<def> = EXTRACT_SUBREG %R0<kill>, 1
	%R0H<def> = ADD16 %R2H<kill>, %R2L<kill>, %AZ<imp-def>, %AN<imp-def>, %AC0<imp-def>, %V<imp-def>, %VS<imp-def>

subreg: CONVERTING: %R2L<def> = EXTRACT_SUBREG %R2<kill>, 1
subreg: eliminated!
subreg: killed here: %R0H<def> = ADD16 %R2H, %R2L, %R2<imp-use,kill>, %AZ<imp-def>, %AN<imp-def>, %AC0<imp-def>, %V<imp-def>, %VS<imp-def>

The kill flag on %R2 is moved to the last instruction, and the live range overlaps with the definition of %R2H:

*** Bad machine code: Redefining a live physical register ***
- function:    f
- basic block:  0x18358c0 (#0)
- instruction: %R2H<def> = LOAD16fi <fi#-1>, 0, Mem:LD(2,4) [FixedStack-1 + 0]
Register R2H was defined but already live.

The fix is to replace EXTRACT_SUBREG with IMPLICIT_DEF instead of eliminating
it completely:

subreg: CONVERTING: %R2L<def> = EXTRACT_SUBREG %R2<kill>, 1
subreg: replace by: %R2L<def> = IMPLICIT_DEF %R2<kill>

Note that these IMPLICIT_DEF instructions survive to the asm output. It is
necessary to fix the stack-color-with-reg test case because of that.

llvm-svn: 78093
 2009-08-04 20:01:11 +00:00
Mike Stump b0dd95d6d3 Add armv7 support. 
llvm-svn: 78092
 2009-08-04 19:48:52 +00:00
Jakob Stoklund Olesen 3c2a1dea71 Enforce stricter rules in machine code verifier. 
Implicit operands no longer get a free pass: Imp-use requires a live register
and imp-def requires a dead register.

There is also no special rule allowing redefinition of a sub-register when the
super-register is live. The super register must have imp-kill+imp-def operands
instead.

llvm-svn: 78090
 2009-08-04 19:18:01 +00:00
Jakob Stoklund Olesen d302ab9961 Most flags are reserved registers on Blackfin. 
The only exception is CC.

llvm-svn: 78089
 2009-08-04 19:16:55 +00:00
Evan Cheng a3abe2a7ce In thumb mode, r7 is used as frame register. This fixes pr4681. 
llvm-svn: 78086
 2009-08-04 18:46:17 +00:00
David Goodwin a3839bc6c0 Match common pattern for FNMAC. Add NEON SP support. 
llvm-svn: 78085
 2009-08-04 18:44:29 +00:00
Anders Carlsson 5638895b2a Revert the fix for PR3800, it broke things. 
llvm-svn: 78084
 2009-08-04 18:18:36 +00:00
David Goodwin a2824d5700 Improve tests. 
llvm-svn: 78083
 2009-08-04 18:11:59 +00:00
Sanjiv Gupta b4c28d23e1 Legalize i64 store operations generated by inst-combine. 
llvm-svn: 78082
 2009-08-04 17:59:16 +00:00
David Goodwin 3b9c52c5c1 Initial support for single-precision FP using NEON. Added "neonfp" attribute to enable. Added patterns for some binary FP operations. 
llvm-svn: 78081
 2009-08-04 17:53:06 +00:00
Ted Kremenek 36c14a0f1a Renable "html" indexing by default. 
llvm-svn: 78077
 2009-08-04 17:05:18 +00:00
Douglas Gregor 465396b5b8 Add some type traits that are used for Clang's statically-checked 
canonical types.

llvm-svn: 78076
 2009-08-04 17:04:52 +00:00
Fariborz Jahanian b61af4c566 Some code refactoring. Be more generous in issuance of warning 
on method type mismatches per Chris's comment.

llvm-svn: 78075
 2009-08-04 17:01:09 +00:00
Evan Cheng 206ee96bd6 Fix PR4528. This scavenger assertion is too strict. The two-address value is 
killed by another operand.

There is probably a better fix. Either 1) scavenger can look at other operands, or
2) livevariables can be smarter about kill markers. Patches welcome.

llvm-svn: 78072
 2009-08-04 16:52:44 +00:00
Douglas Gregor d6ff33294a Refactor template instantiation for types into a generic tree 
transformation template (TreeTransform) that handles the
transformation and reconstruction of AST nodes. Template instantiation
for types is a (relatively small) customization of the generic tree
transformation.

llvm-svn: 78071
 2009-08-04 16:50:30 +00:00
Daniel Dunbar ed65bf420d Avoid compiler warning (in -Asserts mode) 
llvm-svn: 78070
 2009-08-04 16:46:12 +00:00
Anders Carlsson 19702bb054 Simplify alignment handling in the record builder. 
llvm-svn: 78069
 2009-08-04 16:29:15 +00:00
Chris Lattner f222054df7 enhance codegen to put 16-bit character strings into the 
__TEXT,__ustring section on darwin.

llvm-svn: 78068
 2009-08-04 16:27:13 +00:00
Chris Lattner eee9df0e97 fix a fixme: don't create an explicit "CStringSection" for ELF, 
it is just being used as a prefix, so forward substitute it directly.

llvm-svn: 78067
 2009-08-04 16:19:50 +00:00
Chris Lattner 81bbf443fe Add support emiting for 2/4 byte mergable strings to the ".rodata.str*" 
section on ELF targets.

llvm-svn: 78066
 2009-08-04 16:13:09 +00:00
Misha Brukman bbabd39cce * Use "svn export" instead of "svn co" and avoid cleaning up .svn dirs 
* Use "svn info" to get last revision in repo, will get matching tarballs
* Now run "svn -q" since "svn info" tells us the revision number

llvm-svn: 78065
 2009-08-04 15:47:18 +00:00
Anton Korobeynikov d0a53d380a Ooops, I was too fast to commit the wrong fix :( 
llvm-svn: 78060
 2009-08-04 11:18:31 +00:00
Anton Korobeynikov 3c5b68e2a7 Fix a typo - this unbreaks llvm-gcc build on arm 
llvm-svn: 78059
 2009-08-04 11:12:51 +00:00
Evan Cheng 3870fbb561 Thumb2 does not have ib (increment before) and da (decrement after) forms of ldm / stm. 
llvm-svn: 78057
 2009-08-04 08:34:18 +00:00
Devang Patel 05eb617da5 Use separate ValueList for metadata. 
This fixes PR4666.

llvm-svn: 78056
 2009-08-04 06:00:18 +00:00
Chris Lattner b58dc1c667 make MergeableCString be a SectionKind "abstract class", and 
add new concrete versions for 1/2/4-byte mergable strings.

These are not actually created yet.

llvm-svn: 78055
 2009-08-04 05:35:56 +00:00
Edward O'Callaghan ab8a04c6a8 Minor www site formating improvements. 
llvm-svn: 78054
 2009-08-04 05:24:28 +00:00
Devang Patel 8cca7b4abe Revert recent bitcode writer patches. 
llvm-svn: 78053
 2009-08-04 05:01:35 +00:00
Edward O'Callaghan eb5cb6b515 Some compiler-rt www site improvements. 
llvm-svn: 78052
 2009-08-04 04:48:38 +00:00
Bill Wendling fd5d735e2b llvm-gcc checks the static asm variable is valid in ValidateRegisterVariable. Make this work for PPC. 
llvm-svn: 78051
 2009-08-04 04:48:31 +00:00
Daniel Dunbar 83142021fb lit: Some sample tests, for testing the tester 
llvm-svn: 78050
 2009-08-04 04:40:15 +00:00
Daniel Dunbar e9863976b3 Fix test case for Darwin10 (which sets ssp), and move to CodeGen/ 
llvm-svn: 78049
 2009-08-04 04:38:31 +00:00
Chris Lattner 59c08e76ca switch ValueMap to using AssertingVH. This is an old patch I had laying 
around in a tree I forgot about.

llvm-svn: 78048
 2009-08-04 04:31:02 +00:00
Daniel Dunbar ad9a6c4855 No really, it's unused. 
llvm-svn: 78047
 2009-08-04 04:08:40 +00:00
Daniel Dunbar 8f388e44e0 Remove unused function. 
llvm-svn: 78046
 2009-08-04 04:04:25 +00:00
Daniel Dunbar 4a2cdc3302 Update for LLVM API change 
llvm-svn: 78044
 2009-08-04 04:02:57 +00:00
Daniel Dunbar 09c1d0002b Remove now unused Module argument to createTargetMachine. 
llvm-svn: 78043
 2009-08-04 04:02:45 +00:00
Bill Wendling 0549ae4181 Fixed now. 
llvm-svn: 78042
 2009-08-04 03:46:54 +00:00
Rafael Espindola dde8b5848a Add test for PR4678 
llvm-svn: 78040
 2009-08-04 03:44:37 +00:00
Bill Wendling 0c685e1055 XFAIL for the moment. 
llvm-svn: 78038
 2009-08-04 03:40:47 +00:00
Edward O'Callaghan 30009e7121 Refactor out common pre-processor code. 
llvm-svn: 78037
 2009-08-04 03:30:10 +00:00
Devang Patel 4314b1dc01 Remove dead code. 
llvm-svn: 78035
 2009-08-04 02:54:15 +00:00
Devang Patel b299790411 Fix MDString Abbrev setup. 
llvm-svn: 78034
 2009-08-04 02:36:39 +00:00
Devang Patel 8abe6bc291 Constants and Metadata share ValueList. This means they must be emitted interleaved (using appropriate BLOCK_IDs) otherwise ValuePtrs index gets out of sync. 
llvm-svn: 78033
 2009-08-04 02:26:56 +00:00
Evan Cheng f43cf709cb Remove ARM specific getInlineAsmLength. We'll rely on the simpler (and faster) generic algorithm for now. If more accurate computation is needed, we'll rely on the disassembler. 
llvm-svn: 78032
 2009-08-04 01:56:09 +00:00
Evan Cheng 71756e789b Load / store multiple pass fixes for Thumb2. Not enabled yet. 
llvm-svn: 78031
 2009-08-04 01:43:45 +00:00
Evan Cheng 03eb0e3c33 Emit sub r, #c instead of transforming it to add r, #-c if c fits in 8-bit. This is a bit of pre-mature optimization. 8-bit variant makes it likely it will be narrowed to a 16-bit instruction. 
llvm-svn: 78030
 2009-08-04 01:41:15 +00:00