Commit Graph

11276 Commits

Author SHA1 Message Date
Devang Patel
cbd056074c Do not overestimate code size reduction in presense of debug info.
Use CodeMetrics.analyzeBasicBlock() to estimate BB size.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@98401 91177308-0d34-0410-b5e6-96231b3b80d8
2010-03-13 00:10:20 +00:00
Daniel Dunbar
f08fde41f3 MC/Mach-O: Implement initial support for relaxation.
- The implementation is currently very brain dead and inefficient, but I have a
   clear plan on how to fix it.

 - The good news is, it works and correctly assembles 403.gcc (when built with
   Clang, at '-Os', '-Os -g', and '-O3'). Even better, at '-Os' and '-Os -g',
   the resulting binary is exactly equivalent to that when built with the system
   assembler. So it probably works! :)

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@98396 91177308-0d34-0410-b5e6-96231b3b80d8
2010-03-12 22:07:14 +00:00
Chris Lattner
d62f1b4168 inline GetGlobalValueSymbol into the rest its callers and
remove it.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@98390 91177308-0d34-0410-b5e6-96231b3b80d8
2010-03-12 21:19:23 +00:00
Chris Lattner
b6fc4a5650 eliminate the X86 version of GetGlobalValueSymbol, allowing
it to be non-virtual and soon disappear.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@98387 91177308-0d34-0410-b5e6-96231b3b80d8
2010-03-12 21:06:41 +00:00
Chris Lattner
8a29fa6e02 move fastcall/stdcall mangling up into Mangler.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@98384 91177308-0d34-0410-b5e6-96231b3b80d8
2010-03-12 21:03:47 +00:00
Daniel Dunbar
df3c8f2969 MC: Factor out MCAssembler::EvaluateFixup, and simplify.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@98381 91177308-0d34-0410-b5e6-96231b3b80d8
2010-03-12 21:00:49 +00:00
Daniel Dunbar
a0e36d55c4 MC: Constify MCAsmLayout argument to MCExpr::EvaluteAs...
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@98380 91177308-0d34-0410-b5e6-96231b3b80d8
2010-03-12 21:00:45 +00:00
Daniel Dunbar
8315a357e4 MC: Add MCAssembler::addFixup, which enforces that fixups are added in order.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@98379 91177308-0d34-0410-b5e6-96231b3b80d8
2010-03-12 21:00:38 +00:00
Chris Lattner
b87c305fa7 give Mangler access to TargetData.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@98378 91177308-0d34-0410-b5e6-96231b3b80d8
2010-03-12 20:47:28 +00:00
Benjamin Kramer
a30b181c20 Add a virtual destructor and give vtable a home.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@98376 91177308-0d34-0410-b5e6-96231b3b80d8
2010-03-12 20:41:29 +00:00
Chris Lattner
73ff564d65 finally give Mangler a getSymbol method, which returns an MCSymbol
for a global instead of messing around with string buffers.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@98366 91177308-0d34-0410-b5e6-96231b3b80d8
2010-03-12 18:55:20 +00:00
Chris Lattner
5ef31a039d make the mangler take an MCContext instead of an MAI.
No functionality change.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@98363 91177308-0d34-0410-b5e6-96231b3b80d8
2010-03-12 18:44:54 +00:00
Chris Lattner
fdab14b105 remove MAI argument from createAsmStreamer since it
can get it from the context now.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@98361 91177308-0d34-0410-b5e6-96231b3b80d8
2010-03-12 18:28:53 +00:00
Jeffrey Yasskin
5c213dc78c Free DbgScopes in DwarfDebug::endFunction(). Also increased the const-ness of
several fields to make it easier to figure out where bugs might be creeping in.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@98358 91177308-0d34-0410-b5e6-96231b3b80d8
2010-03-12 17:45:06 +00:00
Benjamin Kramer
0b6cb50738 Factor checked library call optimization into a common helper class and use it
to unify the almost identical code in CodeGenPrepare and InstCombineCalls.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@98338 91177308-0d34-0410-b5e6-96231b3b80d8
2010-03-12 09:27:41 +00:00
Chris Lattner
f789d26f81 make TargetLoweringObjectFile::getExprForDwarfReference
just make unnamed temp symbols instead of having to come
up with its own names.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@98324 91177308-0d34-0410-b5e6-96231b3b80d8
2010-03-12 01:56:43 +00:00
Chris Lattner
c18409aed8 change MCContext to always have an MCAsmInfo.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@98293 91177308-0d34-0410-b5e6-96231b3b80d8
2010-03-11 22:53:35 +00:00
Chris Lattner
42263e2e40 fix a fixme in TargetLoweringObjectFile::getExprForDwarfReference
where we used ot create an MCSymbol for ".".  Now emit an assembler
temporary label and reference it instead of "." textually.

rdar://7739457


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@98292 91177308-0d34-0410-b5e6-96231b3b80d8
2010-03-11 21:55:20 +00:00
Dan Gohman
a257095ebb Remove getWidenVectorType, which is no longer used.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@98289 91177308-0d34-0410-b5e6-96231b3b80d8
2010-03-11 21:39:57 +00:00
Benjamin Kramer
7fa30b8e5d stpcpy is so similar to strcpy, it doesn't deserve a complete copy of the __strcpy_chk -> strcpy code.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@98284 91177308-0d34-0410-b5e6-96231b3b80d8
2010-03-11 20:45:13 +00:00
Chris Lattner
3192d14076 rename getSymbolForDwarf* to getExprForDwarf* since it returns
an MCExpr and not an MCSymbol.  Change it to take an MCStreamer,
which is currently unused.

No functionality change.



git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@98278 91177308-0d34-0410-b5e6-96231b3b80d8
2010-03-11 19:41:58 +00:00
Eric Christopher
19888ca8b4 Lower stpcpy_chk when possible.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@98274 91177308-0d34-0410-b5e6-96231b3b80d8
2010-03-11 19:24:34 +00:00
Daniel Dunbar
8f0448cabc MC/Mach-O: Add MCSymbolData::getAddress() utility.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@98266 91177308-0d34-0410-b5e6-96231b3b80d8
2010-03-11 18:22:51 +00:00
Richard Osborne
95da605e15 Add a new jump table encoding to indicate jump tables entries
are inside the function by the target at the point of use.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@98255 91177308-0d34-0410-b5e6-96231b3b80d8
2010-03-11 14:58:16 +00:00
Evan Cheng
826cbac2a0 The check for coalescing a virtual register to a physical register, e.g.
cl = EXTRACT_SUBREG reg1024, 1, is overly conservative. It should check
for overlaps of vr's live interval with the super registers of the
physical register (ECX in this case) and let JoinIntervals() handle checking
the coalescing feasibility against the physical register (cl in this case).


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@98251 91177308-0d34-0410-b5e6-96231b3b80d8
2010-03-11 08:20:21 +00:00
Daniel Dunbar
18ff2cced7 MC/Mach-O: Start passing in the basic MCAsmLayout object.
- Also, drop the current location part of AsmLayout, I think I prefer to implement this via explicit symbols.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@98240 91177308-0d34-0410-b5e6-96231b3b80d8
2010-03-11 05:53:33 +00:00
Daniel Dunbar
f82f4490b1 MC: Sketch initial MCAsmLayout class, which encapsulates the current layout of an assembly file. The MCAsmLayout is also available for use by MCExpr::EvaluateAs{Absolute,Relocatable}, to allow target specific hooks and "absolutizing" of symbols.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@98227 91177308-0d34-0410-b5e6-96231b3b80d8
2010-03-11 02:28:59 +00:00
Daniel Dunbar
18e2c021a9 Fix (unused) RegisterAsmBackend template, clang++ isn't happy about this.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@98226 91177308-0d34-0410-b5e6-96231b3b80d8
2010-03-11 02:28:52 +00:00
Daniel Dunbar
1f3e445184 MC: Provide MCAssembler with a TargetAsmBackend.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@98222 91177308-0d34-0410-b5e6-96231b3b80d8
2010-03-11 01:34:27 +00:00
Daniel Dunbar
23ac7c78e4 MC: Sketch some TargetAsmBackend hooks we are going to need.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@98221 91177308-0d34-0410-b5e6-96231b3b80d8
2010-03-11 01:34:21 +00:00
Daniel Dunbar
6c27f5e574 MC: Provide the target triple to AsmBackend constructors.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@98220 91177308-0d34-0410-b5e6-96231b3b80d8
2010-03-11 01:34:16 +00:00
Eric Christopher
bd97376200 Add strncpy libcall creator. Use it when it should be used.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@98219 91177308-0d34-0410-b5e6-96231b3b80d8
2010-03-11 01:25:07 +00:00
Dale Johannesen
ae47e461eb Make sure HasDebugValue is initialized. This should fix
the buildbot running valgrind.



git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@98216 91177308-0d34-0410-b5e6-96231b3b80d8
2010-03-11 00:52:12 +00:00
Chris Lattner
2968943463 add support, testcases, and dox for the new GHC calling
convention.  Patch by David Terei!



git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@98212 91177308-0d34-0410-b5e6-96231b3b80d8
2010-03-11 00:22:57 +00:00
Bill Wendling
cebae36f57 Add a bit along with the MCSymbols stored in the MachineModuleInfo maps that
indicates that an MCSymbol is external or not. (It's true if it's external.)
This will be used to specify the correct information to add to non-lazy
pointers. That will be explained further when this bit is used.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@98199 91177308-0d34-0410-b5e6-96231b3b80d8
2010-03-10 22:34:10 +00:00
Dale Johannesen
bfdf7f3852 Progress towards shepherding debug info through SelectionDAG.
No functional effect yet.  This is still evolving and should
not be viewed as final.



git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@98195 91177308-0d34-0410-b5e6-96231b3b80d8
2010-03-10 22:13:47 +00:00
Daniel Dunbar
46836a783a MC: Move the backend section and symbol data maps to MCAssembler.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@98186 91177308-0d34-0410-b5e6-96231b3b80d8
2010-03-10 20:58:29 +00:00
Daniel Dunbar
d80066eea9 Remove unneeded declarations.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@98185 91177308-0d34-0410-b5e6-96231b3b80d8
2010-03-10 20:58:25 +00:00
Dan Gohman
bbf81d8811 Add a DominatorTree argument to isLCSSA so that it doesn't have to
compute a set of reachable blocks for itself each time it is called, which
is fairly frequently.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@98179 91177308-0d34-0410-b5e6-96231b3b80d8
2010-03-10 19:38:49 +00:00
Benjamin Kramer
48ee0bbb72 Remove duplicated code. No functionality change.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@98156 91177308-0d34-0410-b5e6-96231b3b80d8
2010-03-10 16:04:20 +00:00
Chris Lattner
09d53fecfc move three lowering hooks from MAI to TLOF and make one of them
semantic instead of syntactic.  This completes MCization of
darwin/x86[-64]!


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@98145 91177308-0d34-0410-b5e6-96231b3b80d8
2010-03-10 07:20:42 +00:00
Chris Lattner
98cdab53c3 set the temporary bit on MCSymbols correctly.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@98124 91177308-0d34-0410-b5e6-96231b3b80d8
2010-03-10 02:25:11 +00:00
Chris Lattner
00685bb5cf eliminate MCContext::CreateSymbol and CreateTemporarySymbol.
Add a new GetOrCreateTemporarySymbol method and a version that
takes a twine.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@98118 91177308-0d34-0410-b5e6-96231b3b80d8
2010-03-10 01:29:27 +00:00
Jakob Stoklund Olesen
f7477470d3 Try to keep the cached inliner costs around for a bit longer for big functions.
The Caller cost info would be reset everytime a callee was inlined. If the
caller has lots of calls and there is some mutual recursion going on, the
caller cost info could be calculated many times.

This patch reduces inliner runtime from 240s to 0.5s for a function with 20000
small function calls.

This is a more conservative version of r98089 that doesn't break the clang
test CodeGenCXX/temp-order.cpp. That test relies on rather extreme inlining
for constant folding.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@98099 91177308-0d34-0410-b5e6-96231b3b80d8
2010-03-09 23:02:17 +00:00
Jakob Stoklund Olesen
b5a158bab8 Revert r98089, it was breaking a clang test.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@98094 91177308-0d34-0410-b5e6-96231b3b80d8
2010-03-09 22:43:37 +00:00
Jakob Stoklund Olesen
9e5d87d568 Try to keep the cached inliner costs around for a bit longer for big functions.
The Caller cost info would be reset everytime a callee was inlined. If the
caller has lots of calls and there is some mutual recursion going on, the
caller cost info could be calculated many times.

This patch reduces inliner runtime from 240s to 0.5s for a function with 20000
small function calls.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@98089 91177308-0d34-0410-b5e6-96231b3b80d8
2010-03-09 22:17:11 +00:00
Jim Grosbach
dff4b4c5a7 Change the Value argument to eliminateFrameIndex to a type-tagged value. This
is preparatory to having PEI's scavenged frame index value reuse logic
properly distinguish types of frame values (e.g., whether the value is
stack-pointer relative or frame-pointer relative).

No functionality change.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@98086 91177308-0d34-0410-b5e6-96231b3b80d8
2010-03-09 21:45:49 +00:00
Chris Lattner
c608784dc8 reapply r98035:
Now that setStartLabel takes an MCSymbol, we can de-ID'ize
beginScope and RecordSourceLine.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@98047 91177308-0d34-0410-b5e6-96231b3b80d8
2010-03-09 04:54:43 +00:00
Eric Christopher
ee6414cf04 Speculatively revert r98035. It appears to have caused a set of buildbot
failures.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@98039 91177308-0d34-0410-b5e6-96231b3b80d8
2010-03-09 02:36:31 +00:00
Chris Lattner
1e233f510c Now that setStartLabel takes an MCSymbol, we can de-ID'ize
beginScope and RecordSourceLine.



git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@98035 91177308-0d34-0410-b5e6-96231b3b80d8
2010-03-09 02:08:02 +00:00