Commit Graph

46387 Commits

Author SHA1 Message Date
Owen Anderson 987b5057d3 We don't need to try to coalesce input vregs that are the same as the output vreg.
llvm-svn: 54422
2008-08-06 20:29:20 +00:00
Owen Anderson f9fca2f2dc Only trim a live interval if the register is not used after the PHI node.
llvm-svn: 54421
2008-08-06 18:36:17 +00:00
Owen Anderson 03dddbbed5 Only remap each VNInfo once when doing renumbering.
llvm-svn: 54420
2008-08-06 18:35:45 +00:00
Dan Gohman 91c2c432c0 Re-introduce the 8-bit subreg zext-inreg patterns for x86-32,
this time using MOV32to32_ and MOV16to16_. Thanks to Evan for
suggesting this.

llvm-svn: 54418
2008-08-06 18:27:21 +00:00
Dan Gohman ac22cfcae9 Fix a shufflevector instcombine that was emitting invalid masks indices
when it meant to be emitting undef indices.

llvm-svn: 54417
2008-08-06 18:17:32 +00:00
Evan Cheng 2bd97afb99 PR2535, not PR2355.
llvm-svn: 54416
2008-08-06 18:06:48 +00:00
Evan Cheng 907dc2bc37 Fix PR2355: bug in ChangeCompareStride. When the loop termination compare is the only use of its iv stride, the stride can be eliminated by moving it to another stride. If the scale is negative, swap the predicate instead of using a inverse predicate.
llvm-svn: 54415
2008-08-06 18:04:43 +00:00
Daniel Dunbar 2dd3e4e49d Add svn:ignore on test/Sema/Output
llvm-svn: 54414
2008-08-06 16:08:49 +00:00
Daniel Dunbar 8d81683554 Replace old bitfield test.
- Change hardcoded assembly instructions to a use of 'opt' (still
   waiting for someone to yell at me for this).

 - Add some cases to cover behavior fixed by previous commit.

llvm-svn: 54413
2008-08-06 16:07:39 +00:00
Steve Naroff c884aa8e84 Fix for <rdar://problem/6113807> clang ObjC rewriter: crash rewriting attached file
While this is a safe rewriter fix, there is still a need for some discussion (see report for more info).

llvm-svn: 54412
2008-08-06 15:58:23 +00:00
Dan Gohman 04f4c833e9 xchg does not modify FLAGS.
llvm-svn: 54411
2008-08-06 15:52:50 +00:00
Ted Kremenek 8d78a09a56 Reorder serialization methods.
When serializing DeclStmt, encode a bit indicating whether or not the DeclStmt owns the Decl.  This is an interim solution.

llvm-svn: 54410
2008-08-06 15:50:59 +00:00
Dan Gohman 44a15697ad Clarify "node" vs. "value" in some comments.
llvm-svn: 54409
2008-08-06 15:18:10 +00:00
Chris Lattner f5b353c1fd optimize a common idiom generated by clang for bitfield access, PR2638.
llvm-svn: 54408
2008-08-06 07:35:52 +00:00
Bruno Cardoso Lopes 4659aad624 Added support for fp callee saved registers.
Added fp register clobbering during calls.
Added AsmPrinter support for "fmask", a bitmask that indicates where on the 
stack the fp callee saved registers are.

Fixed the stack frame layout for Mips, now the callee saved regs 
are in the right stack location (a little documentation about how this
stack frame must look like is present in MipsRegisterInfo.cpp).
This was done using the method MipsRegisterInfo::adjustMipsStackFrame
To be more clear, these are examples of what is solves :  

1) FP and RA are also callee saved, and despite they aren't in CSI they 
   must be saved before the fp callee saved registers. 
2) The ABI requires that local varibles are allocated before the callee 
   saved register area, the opposite behavior from the default allocation.
3) CPU and FPU saved register area must be aligned independent of each
   other.

llvm-svn: 54403
2008-08-06 06:14:43 +00:00
Chris Lattner 8709ed3371 stacker is really gone.
llvm-svn: 54400
2008-08-06 05:57:58 +00:00
Chris Lattner 6b12e46f35 remove stacker
llvm-svn: 54398
2008-08-06 05:56:52 +00:00
Daniel Dunbar e8bdce441b Fix EmitNullInitializationToLValue for bitfield lvalues.
- PR2643

llvm-svn: 54397
2008-08-06 05:32:55 +00:00
Chris Lattner 7bdaecb7f4 Zap sitofp/fptoui pairs. In all cases when the sign difference
matters, the result is undefined anyway.

llvm-svn: 54396
2008-08-06 05:13:06 +00:00
Daniel Dunbar ead7c91240 Fix bitfield accesses which straddle the boundary of the underlying
type.

 - This generates somewhat less optimal code than before but this is
   not hard to rectify once stable (at the cost of slightly more
   complex code).

 - This currently always uses little-endian ordering of the bitfield. 

 - This breaks the CodeGen/bitfield.c test because it was grepping for
   hard-coded assembly instructions. Will fix once a better test case
   is constructed (hard to do without execution).

 - This fixes SingleSource/UnitTests/2006-01-23-InitializedBitField.c
   and Regression/C/PR1386.c from the test suite.

 - <rdar://problem/6085090>, <rdar://problem/6094169>

llvm-svn: 54395
2008-08-06 05:08:45 +00:00
Nick Lewycky bf42893567 Reinstate this optimization, but without the miscompile. Thanks to Bill for
tracking down that this was breaking llvm-gcc bootstrap on Linux.

llvm-svn: 54394
2008-08-06 04:54:03 +00:00
Ted Kremenek be160966cd Update xcode project to new libDriver layout.
llvm-svn: 54393
2008-08-06 02:55:08 +00:00
Daniel Dunbar bfb1cd7454 Fix CodeGen of pointer arithmetic in compound assignment statements.
- Changed EmitSub to work on all cases (arithmetic, ptr - int, ptr -
   ptr) so that implementation matches that of other operators.

 - Modify EmitCompoundAssign to compute and perform the appropriate
   casts of left, right, and result types for the assorted pointer
   arithmetic cases.

 - Fix EmitSub (ptr - int) case to negate the rhs *after*
   extension. This is critical when the rhs is unsigned (and needs
   extension).

 - This fixes cfrac.

 - <rdr://6115726>

llvm-svn: 54392
2008-08-06 02:00:38 +00:00
Bill Wendling 0e966d3e2c Just grep for through the LL code instead of the ASM code
llvm-svn: 54389
2008-08-06 00:10:32 +00:00
Daniel Dunbar ffc29be83f Implement GNU asm-label extension support in CodeGen. This fixes
scimark2 on Darwin.

 - Added Sema support for asm-label on variables, which I forgot before.

 - Update CodeGen to use GlobalDeclMap to determine if static Decls
   require emission (instead of LLVM module name lookup). Important
   since the Decl name and the LLVM module name can differ.

 - <rdar://problem/6116729>

llvm-svn: 54388
2008-08-06 00:03:29 +00:00
Bill Wendling 9b26ca1ab4 Add ARM to the targets to build.
llvm-svn: 54386
2008-08-05 23:52:28 +00:00
Dan Gohman ced4857365 Use strcpy instead of sprintf here. This avoids a GCC 4.3 format-string
warning. There wasn't actually a problem here, because the contents of
the string are known.

llvm-svn: 54385
2008-08-05 23:36:35 +00:00
Bill Wendling bc6786e7ee Add default architecture.
llvm-svn: 54384
2008-08-05 23:36:00 +00:00
Nico Weber b5fc3c300a add a libDriver, for now only move the text diangostics stuff from Driver to there
llvm-svn: 54383
2008-08-05 23:33:20 +00:00
Daniel Dunbar 829e988899 Change CodeGen of global decls to key off of the name (instead of
having multiple bindings from all the possible decls which
  conceptually map to the same global).

 - This eliminates CodeGen depending on the LLVM module for name
   lookup.

 - This also eliminates the need for ReplaceMapValuesWith (hurrah).

 - This handles lookups for FunctionDecls correctly in the presence of
   aliases, this was previously broken.

 - WIP: Can still clean up & unify variable and function emission.

llvm-svn: 54382
2008-08-05 23:31:02 +00:00
Nico Weber de565e3bc9 remove spaces at eol to test commit access
llvm-svn: 54381
2008-08-05 23:15:29 +00:00
Dan Gohman 1fcc804cfd Pass the computed iteration count value to RewriteLoopExitValues
instead of having it call getIterationCount again.

llvm-svn: 54380
2008-08-05 22:34:21 +00:00
Bill Wendling 6e03f9a40b It's "a static", not "an static"
llvm-svn: 54379
2008-08-05 22:29:16 +00:00
Owen Anderson 3d4c06dd54 Fix breakage on ARM/2008-04-10-ScavengerAssert.ll.
llvm-svn: 54378
2008-08-05 22:24:40 +00:00
Bill Wendling 3dfa168d22 Testcase for PR2629.
llvm-svn: 54377
2008-08-05 22:23:59 +00:00
Evan Cheng 7823a411d5 Fix PR2620: Fix X86cmppd selection code so it expects operands to be v2f64.
llvm-svn: 54376
2008-08-05 22:19:15 +00:00
Evan Cheng aa33b932bd Fix PR2596: out of bound reference.
llvm-svn: 54375
2008-08-05 21:51:46 +00:00
Owen Anderson bdaed55ef3 Correctly handle replacement and removal of PHIs with one incoming register.
llvm-svn: 54374
2008-08-05 21:40:45 +00:00
Ted Kremenek 182ab758a3 Add missing "classof" methods to NonNullAttr, fixing a heisencrash.
llvm-svn: 54373
2008-08-05 21:29:52 +00:00
Bill Wendling ee12a7aeff Revert r53282. This was causing a miscompile on Linux. Also, the transformation
looks bogus. Please see PR2629 for details on why this is breaking things.

llvm-svn: 54372
2008-08-05 21:23:45 +00:00
Owen Anderson d9b88a85f2 Oops, we were already checking for dead phis. Handle this the proper way, then.
llvm-svn: 54371
2008-08-05 21:18:51 +00:00
Owen Anderson d4ffa4eb57 We don't need to update live intervals for dead PHIs.
llvm-svn: 54369
2008-08-05 20:51:26 +00:00
Ted Kremenek 4f8792b616 Added decl_iterator to DeclStmt to provide an abstract interface to iterate over the ScopedDecls of a DeclStmt.
Updated a few clients of DeclStmt::getNextDeclarator() to use decl_iterator instead.  Will update other clients after additional testing.

llvm-svn: 54368
2008-08-05 20:46:55 +00:00
Steve Naroff dd514e01f2 Finish fixing <rdar://problem/5929344> clang ObjC rewriter: "extern int __CFConstantStringClassReference[];" should be extern "C"
llvm-svn: 54367
2008-08-05 20:04:48 +00:00
Ted Kremenek 9f6112c4e6 Remove excess #include.
llvm-svn: 54366
2008-08-05 19:56:24 +00:00
Nuno Lopes d86aa9340d fix crash when printing diagnostics with tokens that span through more than one line
llvm-svn: 54365
2008-08-05 19:40:20 +00:00
Ted Kremenek 2c674f6dbb Refactored driver logic for CodeGen into LLVMCodeGenWriter. This ASTConsumer layers on top of LLVMCodeGen (another existing ASTConsumer) to emit bitcode files to disk. This layering takes this logic out of clang.cpp and puts it directly into the ASTConsumer interface. The benefit is that now --emit-llvm works with both serialized ASTs and regular source files.
llvm-svn: 54364
2008-08-05 18:50:11 +00:00
Steve Naroff 568bbf73b2 Fix <rdar://problem/6108119> clang ObjC rewriter: if no newline at end of input file, rewriter inserts #define on same line as closing brace
llvm-svn: 54363
2008-08-05 18:47:23 +00:00
Chris Lattner 67c37d1127 Expand acronyms, suggested by Walter Pawley
llvm-svn: 54362
2008-08-05 18:29:16 +00:00
Owen Anderson 7c42ac4133 Remove the -disable-correct-folding option, which was ugly and is no longer needed.
llvm-svn: 54361
2008-08-05 18:27:54 +00:00