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41063 Commits

Author SHA1 Message Date
Chris Lattner e7c14013f5 Fix isNegatibleForFree to not return true for ConstantFP nodes 
after legalize.  Just because a constant is legal (e.g. 0.0 in SSE) 
doesn't mean that its negated value is legal (-0.0).  We could make
this stronger by checking to see if the negated constant is actually
legal post negation, but it doesn't seem like a big deal.

llvm-svn: 47591
 2008-02-26 07:04:54 +00:00
Ted Kremenek ce3563445c Fixed inverted condition. 
llvm-svn: 47590
 2008-02-26 03:44:25 +00:00
Evan Cheng 1da250097b Fix PR2076. CodeGenPrepare now sinks address computation for inline asm memory 
operands into inline asm block.

llvm-svn: 47589
 2008-02-26 02:42:37 +00:00
Ted Kremenek 5affb58dd6 Do include ParenExpr in the CFG; only include their subexpression. 
llvm-svn: 47588
 2008-02-26 02:37:08 +00:00
Evan Cheng ccc0c996a4 Refactor inline asm constraint matching code out of SDIsel into TargetLowering. 
llvm-svn: 47587
 2008-02-26 02:33:44 +00:00
Ted Kremenek 06b671097d Added lazy "symbolication" of parameter variables and global variables. 
Added recording of divide-by-zero and divide-by-uninitialized nodes.

llvm-svn: 47586
 2008-02-26 02:15:56 +00:00
Devang Patel 443018e55e Remove debugging help. 
llvm-svn: 47585
 2008-02-26 01:42:38 +00:00
Nick Kledzik 7d870df864 test svn commit capability 
llvm-svn: 47584
 2008-02-26 01:36:52 +00:00
Devang Patel bbfd874cb4 Update bitcode reader and writer to handle multiple return values. 
Take 2.

llvm-svn: 47583
 2008-02-26 01:29:32 +00:00
Chris Lattner b7e656b177 add parsing, ast building and pretty printing support for C++ throw expressions. 
Patch by Mike Stump!

llvm-svn: 47582
 2008-02-26 00:51:44 +00:00
Chris Lattner 7768313c13 Fix PR2092 by making sure the sign of the enum value follows the 
sign of its type in the early exit case.  No testcase, because this
doesn't manifest as a failure.

llvm-svn: 47581
 2008-02-26 00:33:57 +00:00
Chris Lattner a3343a86ea fix const correctness. 
llvm-svn: 47580
 2008-02-26 00:32:36 +00:00
Ted Kremenek f699882a76 Fixed bug in CFG construction when a CompoundStmt ended with a NullStmt. 
This caused the whole body to get dropped from the CFG.

llvm-svn: 47579
 2008-02-26 00:22:58 +00:00
Ted Kremenek 733f810600 Added FIXME. 
llvm-svn: 47578
 2008-02-26 00:20:52 +00:00
Devang Patel 767338ccec Pass const vectors by reference. 
llvm-svn: 47577
 2008-02-26 00:12:13 +00:00
Eli Friedman ad7d8edeeb Add missing include (for ptrdiff_t). 
llvm-svn: 47576
 2008-02-25 23:35:32 +00:00
Dan Gohman a790af3a88 Revert the assert for MUL_LOHI with an unused high result; Chris 
pointed out that this isn't correct at -O0.

llvm-svn: 47575
 2008-02-25 22:43:48 +00:00
Andrew Lenharth dddb68c63a when making bytecode modules, link as library 
llvm-svn: 47574
 2008-02-25 22:41:55 +00:00
Dale Johannesen 65b404d61c Revise previous patch per review. 
llvm-svn: 47573
 2008-02-25 22:29:22 +00:00
Ted Kremenek 7845b2607a Minor bug fix in LiveVariables: don't "kill" decls referenced by a DeclStmt 
that aren't VarDecls.

llvm-svn: 47572
 2008-02-25 22:28:54 +00:00
Dan Gohman 8c7a9228de Factor the assert for indexed loads/stores out of LoadSDNode 
and StoreSDNode into LSBaseSDNode.

llvm-svn: 47570
 2008-02-25 22:16:29 +00:00
Dan Gohman 0be2f3b941 Add an assert to verify that we don't see an 
{S,U}MUL_LOHI with an unused high value.

llvm-svn: 47569
 2008-02-25 22:15:55 +00:00
Eli Friedman 0992b38a78 Fix a little typo... per cfe-dev, this was apparently causing test 
failures on OS X in some cases.  (Thank you valgrind.)

llvm-svn: 47568
 2008-02-25 22:11:40 +00:00
Dan Gohman 2ff975e749 Remove the hack that turned an {S,U}MUL_LOHI with an unused high 
result into a MUL late in the X86 codegen process. ISD::MUL is
once again Legal on X86, so this is no longer needed. And, the
hack was suboptimal; see PR1874 for details.

llvm-svn: 47567
 2008-02-25 21:57:04 +00:00
Dan Gohman 432e4a6742 Make some static variables const. 
llvm-svn: 47566
 2008-02-25 21:39:34 +00:00
Chris Lattner f5c619f98c clarify comment, this is undefined behavior in any case, even if it only 
bits VC++ right now.

llvm-svn: 47565
 2008-02-25 21:38:21 +00:00
Ted Kremenek 3ed28de5cc doxygenify some comments. 
llvm-svn: 47564
 2008-02-25 21:33:32 +00:00
Chris Lattner 0f5a7ddc39 add an assertion to catch a null PATypeHolder, patch by Erick Tryzelaar 
llvm-svn: 47563
 2008-02-25 21:28:46 +00:00
Ted Kremenek 3a6fd9c177 Better handling of calls to functions via function pointers. 
llvm-svn: 47562
 2008-02-25 21:16:03 +00:00
Dan Gohman 1f372edd97 Convert MaskedValueIsZero and all its users to use APInt. Also add 
a SignBitIsZero function to simplify a common use case.

llvm-svn: 47561
 2008-02-25 21:11:39 +00:00
Chris Lattner eb85ab44f2 convert tabs to spaces, patch by Mike Stump! 
llvm-svn: 47560
 2008-02-25 21:04:36 +00:00
Chris Lattner 451aea8e81 add LSBaseSDNode::getOffset at Dan's request. 
llvm-svn: 47558
 2008-02-25 19:31:21 +00:00
Evan Cheng 548677022c All remat'ed loads cannot be folded into two-address code. Not just argument loads. This change doesn't really have any impact on codegen. 
llvm-svn: 47557
 2008-02-25 19:24:01 +00:00
Chris Lattner 8483d43749 prune #includes, fit in 80 cols. 
llvm-svn: 47556
 2008-02-25 19:21:38 +00:00
Chris Lattner 149a242743 make this self contained. 
llvm-svn: 47555
 2008-02-25 19:20:57 +00:00
Dale Johannesen 32d84b1772 Expand removal of MMX memory copies to allow 1 level 
of TokenFactor underneath chain (seems to be enough)

llvm-svn: 47554
 2008-02-25 19:20:14 +00:00
Lauro Ramos Venancio 4400a85ce8 Revert an incorrect part of my previuos patch. 
llvm-svn: 47553
 2008-02-25 19:08:51 +00:00
Dan Gohman 6610e9ec83 Add a new method to SDNode/SDOperand named getValueSizeInBits 
that combines getValueType and MVT::getSizeInBits, since this
occurrs frequently.

llvm-svn: 47552
 2008-02-25 19:08:02 +00:00
Lauro Ramos Venancio 8983891531 Fix PR2086. 
llvm-svn: 47551
 2008-02-25 19:03:15 +00:00
Ted Kremenek eb079dc502 Fixed bug in RemoveDeadBindings when performing the mark-and-sweep over the 
symbolic store: VarDecl's inserted into the sweep may not always bind to
anything; handle this special case just like bindings to uninitialized values.

llvm-svn: 47550
 2008-02-25 18:56:23 +00:00
Ted Kremenek 3866746569 Expanded transfer function support for divide-by-zero checking to include 
"remainder-by-zero" checking (operator '%').

llvm-svn: 47549
 2008-02-25 18:42:54 +00:00
Ted Kremenek b23cc7191f Added hack to transfer function logic to handle the case where a DeclRefExpr 
wrapping an EnumConstantDecl evaluates to an integer type that has a different
signedness than the APSInt stored in the EnumConstantDecl. Will file a Bugzilla
report.

llvm-svn: 47548
 2008-02-25 18:34:45 +00:00
Ted Kremenek 6f92e2294a Added transfer function support for checking for divide-by-zero errors. 
llvm-svn: 47547
 2008-02-25 17:51:31 +00:00
Duncan Sands 896c519d19 In debug builds check that the key property holds: all 
result and operand types are legal.

llvm-svn: 47546
 2008-02-25 16:21:21 +00:00
Evan Cheng 589a9fb6dc Correctly determine whether a argument load can be folded into its uses. 
llvm-svn: 47545
 2008-02-25 08:50:41 +00:00
Owen Anderson df1d2b02f9 Fix an issue where GVN was performing the return slot optimization when it was 
not safe.  This is fixed by more aggressively checking that the return slot is
not used elsewhere in the function.

llvm-svn: 47544
 2008-02-25 04:08:09 +00:00
Chris Lattner cb0d62c70d enable digraphs for C94, thanks to Neil for pointing this out. 
llvm-svn: 47543
 2008-02-25 04:01:39 +00:00
Evan Cheng 01d6257e81 Temporarily reverting 46959. 
llvm-svn: 47542
 2008-02-25 03:57:32 +00:00
Owen Anderson 40dca46ddb Fix an issue where GVN would try to use an instruction before its definition when performing return slot optimization. 
llvm-svn: 47541
 2008-02-25 00:40:41 +00:00
Chris Lattner 5329e7e5ed Fix PR2090, a typo in digraph processing. 
llvm-svn: 47540
 2008-02-24 19:05:57 +00:00