Commit Graph

45819 Commits

Author SHA1 Message Date
Duncan Sands
3d0355b825 Soft float support for FREM.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@68614 91177308-0d34-0410-b5e6-96231b3b80d8
2009-04-08 16:20:57 +00:00
Misha Brukman
e3bc46ede5 * Fixed calls to APInt ctor to work for negative values on Darwin/x86
* Converted C-style casts to C++-style casts



git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@68613 91177308-0d34-0410-b5e6-96231b3b80d8
2009-04-08 16:17:23 +00:00
Douglas Gregor
b7e7886c79 Add BitstreamWriter::GetCurrentBitNo, to report where we are in the output bitstream
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@68610 91177308-0d34-0410-b5e6-96231b3b80d8
2009-04-08 15:18:21 +00:00
Duncan Sands
7beb1ec298 Soft float support for undef. Reported by Xerxes Rånby.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@68607 91177308-0d34-0410-b5e6-96231b3b80d8
2009-04-08 13:33:37 +00:00
Rafael Espindola
8ef2b89131 Avoid a hard coded constant.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@68603 91177308-0d34-0410-b5e6-96231b3b80d8
2009-04-08 08:09:33 +00:00
Sanjiv Gupta
c1fa70c35a Emit .line debug directives for stoppoints. The debug location is retrieved by the MachineInstr itself, rather than by custom handling the DBG_STOPPOINT nodes.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@68602 91177308-0d34-0410-b5e6-96231b3b80d8
2009-04-08 06:24:04 +00:00
Chris Lattner
ddfa57bd7b Instcombine should not promote whole computation trees to "strange"
integer types, unless they are already strange.  This prevents it from
turning the code produced by SROA into crazy libcalls and stuff that 
the code generator can't handle.  In the attached example, the result
was an i96 multiply that caused the x86 backend to assert.

Note that if TargetData had an idea of what the legal types are for
a target that this could be used to stop instcombine from introducing
i64 muls, as Scott wanted.



git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@68598 91177308-0d34-0410-b5e6-96231b3b80d8
2009-04-08 05:41:03 +00:00
Sanjiv Gupta
7836fc129a Handle indirect function calls.
Every function has the address of its frame in the beginning of code section.
The frame address is retrieved and used to pass arguments.



git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@68597 91177308-0d34-0410-b5e6-96231b3b80d8
2009-04-08 05:38:48 +00:00
Chris Lattner
bd6de0a2b3 disable this code for now, re-breaking PR2975, but fixing
a testcase I'm about to attach to that pr.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@68592 91177308-0d34-0410-b5e6-96231b3b80d8
2009-04-08 04:36:59 +00:00
Chris Lattner
00a7b52385 Remove AllowInverse: it leaks memory and is not the right
abstraction for CommandLine.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@68588 91177308-0d34-0410-b5e6-96231b3b80d8
2009-04-08 03:43:51 +00:00
Dan Gohman
4da69c77cf Fully escape the grep string for this test.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@68580 91177308-0d34-0410-b5e6-96231b3b80d8
2009-04-08 00:54:40 +00:00
Dan Gohman
ac03132018 Update this test for recent codegen improvements. CodeGen is now
using an lea in place of a mov and an add for this test.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@68579 91177308-0d34-0410-b5e6-96231b3b80d8
2009-04-08 00:51:11 +00:00
Chris Lattner
a118c2ee89 change printStringChar to emit characters as unsigned char instead of char,
avoiding sign extension for the top octet.  For "negative" chars, we'd print
stuff like:

.asciz	"\702...
now we print:
.asciz	"\302...



git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@68577 91177308-0d34-0410-b5e6-96231b3b80d8
2009-04-08 00:28:38 +00:00
Dan Gohman
97121ba2af Implement support for using modeling implicit-zero-extension on x86-64
with SUBREG_TO_REG, teach SimpleRegisterCoalescing to coalesce
SUBREG_TO_REG instructions (which are similar to INSERT_SUBREG
instructions), and teach the DAGCombiner to take advantage of this on
targets which support it. This eliminates many redundant
zero-extension operations on x86-64.

This adds a new TargetLowering hook, isZExtFree. It's similar to
isTruncateFree, except it only applies to actual definitions, and not
no-op truncates which may not zero the high bits.

Also, this adds a new optimization to SimplifyDemandedBits: transform
operations like x+y into (zext (add (trunc x), (trunc y))) on targets
where all the casts are no-ops. In contexts where the high part of the
add is explicitly masked off, this allows the mask operation to be
eliminated. Fix the DAGCombiner to avoid undoing these transformations
to eliminate casts on targets where the casts are no-ops.

Also, this adds a new two-address lowering heuristic. Since
two-address lowering runs before coalescing, it helps to be able to
look through copies when deciding whether commuting and/or
three-address conversion are profitable.

Also, fix a bug in LiveInterval::MergeInClobberRanges. It didn't handle
the case that a clobber range extended both before and beyond an
existing live range. In that case, multiple live ranges need to be
added. This was exposed by the new subreg coalescing code.

Remove 2008-05-06-SpillerBug.ll. It was bugpoint-reduced, and the
spiller behavior it was looking for no longer occurrs with the new
instruction selection.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@68576 91177308-0d34-0410-b5e6-96231b3b80d8
2009-04-08 00:15:30 +00:00
Devang Patel
a49a671efe Revert prev. patch for now.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@68569 91177308-0d34-0410-b5e6-96231b3b80d8
2009-04-07 23:00:04 +00:00
Bill Wendling
044b5344c4 Temporarily revert r68552. This was causing a failure in the self-hosting LLVM
builds.

--- Reverse-merging (from foreign repository) r68552 into '.':
U    test/CodeGen/X86/tls8.ll
U    test/CodeGen/X86/tls10.ll
U    test/CodeGen/X86/tls2.ll
U    test/CodeGen/X86/tls6.ll
U    lib/Target/X86/X86Instr64bit.td
U    lib/Target/X86/X86InstrSSE.td
U    lib/Target/X86/X86InstrInfo.td
U    lib/Target/X86/X86RegisterInfo.cpp
U    lib/Target/X86/X86ISelLowering.cpp
U    lib/Target/X86/X86CodeEmitter.cpp
U    lib/Target/X86/X86FastISel.cpp
U    lib/Target/X86/X86InstrInfo.h
U    lib/Target/X86/X86ISelDAGToDAG.cpp
U    lib/Target/X86/AsmPrinter/X86ATTAsmPrinter.cpp
U    lib/Target/X86/AsmPrinter/X86IntelAsmPrinter.cpp
U    lib/Target/X86/AsmPrinter/X86ATTAsmPrinter.h
U    lib/Target/X86/AsmPrinter/X86IntelAsmPrinter.h
U    lib/Target/X86/X86ISelLowering.h
U    lib/Target/X86/X86InstrInfo.cpp
U    lib/Target/X86/X86InstrBuilder.h
U    lib/Target/X86/X86RegisterInfo.td



git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@68560 91177308-0d34-0410-b5e6-96231b3b80d8
2009-04-07 22:35:25 +00:00
Devang Patel
caf6129aba Right now DBG_LABEL are required for llvm.dbg.region_start and llvm.dbg.region_end in non-fast mode also.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@68559 91177308-0d34-0410-b5e6-96231b3b80d8
2009-04-07 22:27:56 +00:00
Rafael Espindola
2a6411bbbd Reduce code duplication on the TLS implementation.
This introduces a small regression on the generated code
quality in the case we are just computing addresses, not
loading values.

Will work on it and on X86-64 support.



git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@68552 91177308-0d34-0410-b5e6-96231b3b80d8
2009-04-07 21:37:46 +00:00
Dan Gohman
4fd552880c Don't attempt to handle aggregate argument values in FastISel; let
SelectionDAG do those. This fixes PR3955.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@68546 91177308-0d34-0410-b5e6-96231b3b80d8
2009-04-07 20:40:11 +00:00
Jim Grosbach
30eae3c022 PR2985 / <rdar://problem/6584986>
When compiling in Thumb mode, only the low (R0-R7) registers are available
for most instructions. Breaking the low registers into a new register class
handles this. Uses of R12, SP, etc, are handled explicitly where needed
with copies inserted to move results into low registers where the rest of
the code generator can deal with them.



git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@68545 91177308-0d34-0410-b5e6-96231b3b80d8
2009-04-07 20:34:09 +00:00
Mike Stump
f23e809be0 Remove ccc now. Radar 6737767
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@68544 91177308-0d34-0410-b5e6-96231b3b80d8
2009-04-07 20:29:25 +00:00
Torok Edwin
68c405d6e8 fix style.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@68542 91177308-0d34-0410-b5e6-96231b3b80d8
2009-04-07 19:45:59 +00:00
Bill Wendling
a0bd8109f9 Use 'name' instead of 'href'.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@68534 91177308-0d34-0410-b5e6-96231b3b80d8
2009-04-07 18:54:06 +00:00
Bill Wendling
b1a61bd178 Fix verification failure.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@68531 91177308-0d34-0410-b5e6-96231b3b80d8
2009-04-07 18:52:30 +00:00
Bill Wendling
f159402cbd Offer an explanation of why building LLVM-GCC with objdir == srcdir doesn't
work.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@68530 91177308-0d34-0410-b5e6-96231b3b80d8
2009-04-07 18:51:13 +00:00
Bill Wendling
290235f898 Another reformatting. No change in docs.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@68528 91177308-0d34-0410-b5e6-96231b3b80d8
2009-04-07 18:40:56 +00:00
Torok Edwin
eb55f3ea3c Another attempt at fixing PR2975.
Types can have references to eachother, so we can't just call destroy on them.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@68523 91177308-0d34-0410-b5e6-96231b3b80d8
2009-04-07 17:23:02 +00:00
Chris Lattner
ce8f9fe3c9 fix comment to reflect the implementation I ended up settling on.
Thanks to Duncan for noticing this


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@68518 91177308-0d34-0410-b5e6-96231b3b80d8
2009-04-07 16:30:31 +00:00
Chris Lattner
62ce3b31a7 fix rdar://6762290, a crash compiling cxx filt with clang.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@68500 91177308-0d34-0410-b5e6-96231b3b80d8
2009-04-07 05:03:34 +00:00
Chris Lattner
ae7dd8004e Add an API for the bitstream reader to read blobs and return
them by reference, instead of packing each byte into a
smallvector.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@68486 91177308-0d34-0410-b5e6-96231b3b80d8
2009-04-07 02:56:46 +00:00
Chris Lattner
683b08cf7c remove empty section
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@68485 91177308-0d34-0410-b5e6-96231b3b80d8
2009-04-07 02:55:53 +00:00
Dan Gohman
75b8eb225e Add svn:ignore properties.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@68479 91177308-0d34-0410-b5e6-96231b3b80d8
2009-04-07 00:26:29 +00:00
Chris Lattner
3f75d3176b stub out code for reading record with blobs as blobs. Not active yet.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@68472 91177308-0d34-0410-b5e6-96231b3b80d8
2009-04-06 22:44:40 +00:00
Chris Lattner
123f384879 allow clients to look up abbrev id's
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@68471 91177308-0d34-0410-b5e6-96231b3b80d8
2009-04-06 22:43:46 +00:00
Chris Lattner
298a82dd0d Add a new EmitRecordWithBlob API that allows a blob to be emitted
without converting each byte to a uint64_t to stick in a SmallVector.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@68469 91177308-0d34-0410-b5e6-96231b3b80d8
2009-04-06 22:26:26 +00:00
Chris Lattner
dcd006bf7b add a new Blob encoding abbreviation for bitcode files that emits
elements in a form that is efficient for the reader to just get a
pointer in memory and start reading.  APIs to do efficient reading
and writing are still todo.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@68465 91177308-0d34-0410-b5e6-96231b3b80d8
2009-04-06 21:50:39 +00:00
Bob Wilson
8f3434647d Handle 'a' modifier in ARM inline assembly.
Patch by Richard Pennington.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@68464 91177308-0d34-0410-b5e6-96231b3b80d8
2009-04-06 21:46:51 +00:00
Chris Lattner
30910bf1c9 split ReadAbbreviatedLiteral out of ReadAbbreviatedField.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@68463 91177308-0d34-0410-b5e6-96231b3b80d8
2009-04-06 21:37:10 +00:00
Chris Lattner
86bc23d5c1 reduce indentation with early-out
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@68462 91177308-0d34-0410-b5e6-96231b3b80d8
2009-04-06 21:34:58 +00:00
Chris Lattner
96153a45fd simplify code a bit.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@68461 91177308-0d34-0410-b5e6-96231b3b80d8
2009-04-06 21:20:01 +00:00
Chris Lattner
40728791f5 simplify to reduce indentation.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@68460 91177308-0d34-0410-b5e6-96231b3b80d8
2009-04-06 21:12:29 +00:00
Torok Edwin
5ce1b11412 revert r68457, its crashing in make check.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@68459 91177308-0d34-0410-b5e6-96231b3b80d8
2009-04-06 20:57:34 +00:00
Chris Lattner
e2a466bfa9 Teach llvm-bcanalyzer to skip over the header we use on LLVM IR files.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@68458 91177308-0d34-0410-b5e6-96231b3b80d8
2009-04-06 20:54:32 +00:00
Torok Edwin
59d5f83b32 fix (part of) memory leak on shutdown. See PR2975.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@68457 91177308-0d34-0410-b5e6-96231b3b80d8
2009-04-06 20:49:21 +00:00
Chris Lattner
63c3ffc16a clean up some html
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@68456 91177308-0d34-0410-b5e6-96231b3b80d8
2009-04-06 20:35:19 +00:00
Mike Stump
1c33d02371 Avoid -O3 on Darwin for now.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@68455 91177308-0d34-0410-b5e6-96231b3b80d8
2009-04-06 19:58:11 +00:00
Ed Schouten
b5e0a96a8d Let the strcat optimizer return the pointer to the start of the buffer,
instead of the place where it started to perform the string copy.

- PR3661
- Patch by Benjamin Kramer!


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@68443 91177308-0d34-0410-b5e6-96231b3b80d8
2009-04-06 13:06:48 +00:00
Sanjiv Gupta
cae1b628a7 Map stack based frameindices for spills to zero based indices that can be accessed based on an external symbol defining the location of temporary data for a function. For example: we have spill slots addressed as foo.tmp + 0, foo.tmp + 1 etc.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@68442 91177308-0d34-0410-b5e6-96231b3b80d8
2009-04-06 10:54:50 +00:00
Bill Wendling
19a8dca186 Add character encoding declaration to fix verification warning.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@68440 91177308-0d34-0410-b5e6-96231b3b80d8
2009-04-05 12:38:44 +00:00
Bill Wendling
78c8fcef7b Obsessively format this document.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@68439 91177308-0d34-0410-b5e6-96231b3b80d8
2009-04-05 12:37:44 +00:00