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6548 Commits

Author SHA1 Message Date
Chris Lattner
9bcdcd17c7 Adjust to new TargetMachine interface 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@13956 91177308-0d34-0410-b5e6-96231b3b80d8
 2004-06-02 05:57:12 +00:00
Chris Lattner
62d6ad2cee Inline findOptimalStorageSize into it's caller, both of which are sparc specific 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@13955 91177308-0d34-0410-b5e6-96231b3b80d8
 2004-06-02 05:56:52 +00:00
Chris Lattner
d6ad847c7c Adjust to new TM interface 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@13954 91177308-0d34-0410-b5e6-96231b3b80d8
 2004-06-02 05:56:04 +00:00
Chris Lattner
bdf1400dd4 Method has been inlined into all callers 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@13953 91177308-0d34-0410-b5e6-96231b3b80d8
 2004-06-02 05:55:48 +00:00
Chris Lattner
d029cd2d5a Convert to the new TargetMachine interface. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@13952 91177308-0d34-0410-b5e6-96231b3b80d8
 2004-06-02 05:55:25 +00:00
Chris Lattner
289809d139 Stubs are no longer needed 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@13951 91177308-0d34-0410-b5e6-96231b3b80d8
 2004-06-02 05:53:52 +00:00
Chris Lattner
143e0ea43d Adjust to new TM interfaces 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@13949 91177308-0d34-0410-b5e6-96231b3b80d8
 2004-06-02 05:47:26 +00:00
Chris Lattner
e25738cab6 Finegrainify namespacification 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@13948 91177308-0d34-0410-b5e6-96231b3b80d8
 2004-06-02 04:28:06 +00:00
Chris Lattner
fd0f7b1131 Fix a trivial but blatant bug 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@13947 91177308-0d34-0410-b5e6-96231b3b80d8
 2004-06-02 03:57:43 +00:00
Chris Lattner
5bfac5d2ed Implement the new CopyFile function 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@13945 91177308-0d34-0410-b5e6-96231b3b80d8
 2004-06-02 00:52:22 +00:00
Chris Lattner
0ebee7410f Move some functions out of gccld.cpp to GenerateCode.cpp. This allows us 
to reduce the inter-file interface in the gccld tool and gets some
uninteresting code out of gccld.cpp.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@13942 91177308-0d34-0410-b5e6-96231b3b80d8
 2004-06-02 00:22:24 +00:00
Misha Brukman
d6af686d28 Fix spelling, trim empty space, tighten up function header comment. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@13940 91177308-0d34-0410-b5e6-96231b3b80d8
 2004-06-02 00:09:46 +00:00
Chris Lattner
abf1cd3ada Implement PR315: abort, don't warn, when missing external functions encountered 
This fixes some critical problems building libstdc++ on cygwin.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@13934 91177308-0d34-0410-b5e6-96231b3b80d8
 2004-06-01 21:49:00 +00:00
Brian Gaeke
dfb2e7d7c9 Use new form of unconditional branch constructor. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@13930 91177308-0d34-0410-b5e6-96231b3b80d8
 2004-06-01 20:06:10 +00:00
John Criswell
4ff620a867 Modified calcTypeName() so that it does not allocate a std::string for 
every recursive call.
This makes it more robust for deeply nested, unnamed types.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@13915 91177308-0d34-0410-b5e6-96231b3b80d8
 2004-06-01 14:54:08 +00:00
Brian Gaeke
e82706b3a0 There is no "mcff" here; delete the confusing comments that refer to it. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@13911 91177308-0d34-0410-b5e6-96231b3b80d8
 2004-05-30 08:29:16 +00:00
Alkis Evlogimenos
6924063bf2 Pull Interval class out of LiveIntervals. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@13910 91177308-0d34-0410-b5e6-96231b3b80d8
 2004-05-30 07:46:27 +00:00
Brian Gaeke
f561b08d67 Transform an occurrence of if(...) { assert (0) }. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@13908 91177308-0d34-0410-b5e6-96231b3b80d8
 2004-05-30 07:34:01 +00:00
Alkis Evlogimenos
26f5a69e52 When spilling an register, introduce a new temporary for each of its 
spills. This allows for more flexibility when allocating registers for
spill code.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@13907 91177308-0d34-0410-b5e6-96231b3b80d8
 2004-05-30 07:24:39 +00:00
Brian Gaeke
25d4b54f93 Reduce the amount of LLVM Values for which we save reg. allocator 
state. Also, save the state for the incoming register of each phi
node.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@13906 91177308-0d34-0410-b5e6-96231b3b80d8
 2004-05-30 07:08:43 +00:00
Brian Gaeke
a7afac29d0 Rename verifySavedState to dumpSavedState. Give it a new comment. 
Call it at a more appropriate point.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@13905 91177308-0d34-0410-b5e6-96231b3b80d8
 2004-05-30 04:22:24 +00:00
Brian Gaeke
2ffbb6d20a Insert machine instructions generated for Phi nodes into their 
corresponding MachineCodeForInstruction vectors.

I need to be able to get the register allocated for the thing which is
called PhiCpRes in this code; this should make that task easier, plus,
Phi nodes are no longer "special" in the sense that their
MachineCodeForInstruction is empty.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@13904 91177308-0d34-0410-b5e6-96231b3b80d8
 2004-05-30 03:33:49 +00:00
Brian Gaeke
cdd69e6719 Fix typo in head-of-file comment. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@13903 91177308-0d34-0410-b5e6-96231b3b80d8
 2004-05-30 03:33:48 +00:00
Reid Spencer
3ee239bd40 Fix a bug that Chris asserts emphatically is a bug. The changed clause 
would always return false because the Type of a type value is always
Type::TypeTY and can never be a floating point type.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@13902 91177308-0d34-0410-b5e6-96231b3b80d8
 2004-05-30 01:19:48 +00:00
Reid Spencer
3c82aa3623 Moved this file to lib/Bytecode/Writer because its used there only. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@13900 91177308-0d34-0410-b5e6-96231b3b80d8
 2004-05-30 00:09:32 +00:00
Brian Gaeke
84d404b0ed Remove unused #include. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@13899 91177308-0d34-0410-b5e6-96231b3b80d8
 2004-05-29 23:26:13 +00:00
Brian Gaeke
7916c92a2b Add comments. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@13898 91177308-0d34-0410-b5e6-96231b3b80d8
 2004-05-29 23:10:20 +00:00
Brian Gaeke
1c334a3eea Trim whitespace. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@13897 91177308-0d34-0410-b5e6-96231b3b80d8
 2004-05-29 22:49:51 +00:00
Brian Gaeke
20ab71086e Give InsertCodeForPhis() a new documentation comment. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@13896 91177308-0d34-0410-b5e6-96231b3b80d8
 2004-05-29 22:20:59 +00:00
Alkis Evlogimenos
38af59a43c Add method to assign stack slot to virtual register without creating a 
new one.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@13895 91177308-0d34-0410-b5e6-96231b3b80d8
 2004-05-29 20:38:05 +00:00
Alkis Evlogimenos
f174cc303b Add grow() member that grows the maps when the number of virtual 
registers in the function has changed.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@13893 91177308-0d34-0410-b5e6-96231b3b80d8
 2004-05-29 19:03:29 +00:00
Alkis Evlogimenos
f717a05698 Remove defs vector from live intervals. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@13892 91177308-0d34-0410-b5e6-96231b3b80d8
 2004-05-29 16:18:57 +00:00
Chris Lattner
aafb1c16b4 Thoroughly rehack the dynamic linking mechanisms on Win32. The Win32 
dynamic linker does not automatically search libraries when looking up
symbols with GetProcAddress.  Because of this we have to emulate it.  The
only detail is that there doesn't seem to be a way to enumerate the
libraries loaded, so we have a gross hack (tm).

This make the JIT functional on win32 under cygwin.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@13887 91177308-0d34-0410-b5e6-96231b3b80d8
 2004-05-28 23:54:07 +00:00
Chris Lattner
1c457b89bb Prune #includes 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@13886 91177308-0d34-0410-b5e6-96231b3b80d8
 2004-05-28 23:35:39 +00:00
Tanya Lattner
20890832ea updates to ModuloSched 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@13881 91177308-0d34-0410-b5e6-96231b3b80d8
 2004-05-28 20:14:12 +00:00
Brian Gaeke
fece1822bf Give PhiCp nodes better names in many cases. 
Simplify InsertPhiElimInstructions(), and give it a better doxygen comment.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@13880 91177308-0d34-0410-b5e6-96231b3b80d8
 2004-05-28 19:34:00 +00:00
Brian Gaeke
b985158c35 Make debugging output with -print-machineinstrs more useful: always print out 
the transformed LLVM code which is the input to the instruction selector.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@13879 91177308-0d34-0410-b5e6-96231b3b80d8
 2004-05-28 19:33:59 +00:00
Chris Lattner
9d1af97d02 Fix the big regression that has been killing the nightly tester these last 
few days.  Apparently the old symbol table used to auto rename collisions in
the type symbol table and the new one does not.  It doesn't really make sense
for the new one to do so, so we just make the client do it.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@13877 91177308-0d34-0410-b5e6-96231b3b80d8
 2004-05-28 05:47:27 +00:00
Chris Lattner
c3fcaea8ac Don't use size() when you mean empty() 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@13876 91177308-0d34-0410-b5e6-96231b3b80d8
 2004-05-28 05:40:19 +00:00
Chris Lattner
a5dcc4f7b2 Minor efficiency gain: do 1 nlogn lookup instead of two 
Code cleanup


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@13875 91177308-0d34-0410-b5e6-96231b3b80d8
 2004-05-28 05:36:49 +00:00
Chris Lattner
d06a549384 Minor changes. Switch to a SymbolTable remove that does not take linear time 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@13874 91177308-0d34-0410-b5e6-96231b3b80d8
 2004-05-28 05:30:51 +00:00
Chris Lattner
11b9be5a1a Fix one of the major things that is causing the C Backend to infinite loop 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@13872 91177308-0d34-0410-b5e6-96231b3b80d8
 2004-05-28 05:02:13 +00:00
Chris Lattner
49f61c4ea4 Add support for getting executable memory on Windows. This is actually 
much easier than on unix.  :)  The only evil thing is that windows.h defines
a macro named FindExecutable, which collides with one of our names.

The JIT now runs on windows, but it cannot resolve external functions
(like printf) yet.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@13871 91177308-0d34-0410-b5e6-96231b3b80d8
 2004-05-28 01:20:58 +00:00
Chris Lattner
c89fe6da17 Add a new function for the JIT. libsupport is now the only library that 
includes mman.h


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@13870 91177308-0d34-0410-b5e6-96231b3b80d8
 2004-05-28 00:59:40 +00:00
Chris Lattner
0cb162b3bb Use the SystemUtils.h file to do our dirty work. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@13868 91177308-0d34-0410-b5e6-96231b3b80d8
 2004-05-28 00:57:27 +00:00
Chris Lattner
e53477e56c Add support for zero length files 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@13866 91177308-0d34-0410-b5e6-96231b3b80d8
 2004-05-28 00:34:42 +00:00
Chris Lattner
fb777c270b Use the new FileUtilities.h API for mapping a file into an address 
space


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@13864 91177308-0d34-0410-b5e6-96231b3b80d8
 2004-05-28 00:24:41 +00:00
Chris Lattner
eb08299518 Add a pair of functions to hide system specific details of mapping a file in for reading. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@13863 91177308-0d34-0410-b5e6-96231b3b80d8
 2004-05-28 00:23:48 +00:00
Reid Spencer
4e6620c9e0 Remove some more dead code resulting from adding setTypeName(). 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@13862 91177308-0d34-0410-b5e6-96231b3b80d8
 2004-05-28 00:21:06 +00:00
Reid Spencer
9ed0f17a62 Remove an assertion that uses Type::TypeTy that is never hit and will 
break when Type::TypeTy goes away. Also remove a dead block of code and
dead comments.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@13861 91177308-0d34-0410-b5e6-96231b3b80d8
 2004-05-27 22:05:50 +00:00
Reid Spencer
73b7495a96 Clean up a comment. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@13860 91177308-0d34-0410-b5e6-96231b3b80d8
 2004-05-27 22:04:46 +00:00
Reid Spencer
5dff158858 Fix for bug 348. 
The SymbolTable changes caused this one too.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@13859 91177308-0d34-0410-b5e6-96231b3b80d8
 2004-05-27 21:58:13 +00:00
Brian Gaeke
aeb3c80e8d Make comment lines stick out less. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@13858 91177308-0d34-0410-b5e6-96231b3b80d8
 2004-05-27 21:41:48 +00:00
Chris Lattner
6f05f35a84 Remove long unused #includes 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@13857 91177308-0d34-0410-b5e6-96231b3b80d8
 2004-05-27 21:25:44 +00:00
Chris Lattner
63e8dfa8a3 These #includes are long dead 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@13856 91177308-0d34-0410-b5e6-96231b3b80d8
 2004-05-27 21:24:38 +00:00
John Criswell
e7b9a1a5f2 Fix a bug in the -deadtypeelim pass. The SymbolTable re-write changed it 
to eliminate the wrong type.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@13855 91177308-0d34-0410-b5e6-96231b3b80d8
 2004-05-27 21:16:46 +00:00
Chris Lattner
1fc3739560 Fix warnings about reaching end of non-void function 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@13852 91177308-0d34-0410-b5e6-96231b3b80d8
 2004-05-27 20:57:01 +00:00
Chris Lattner
0a576b00b6 Add DynamicLinker support for systems that provide windows.h 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@13851 91177308-0d34-0410-b5e6-96231b3b80d8
 2004-05-27 20:53:10 +00:00
Reid Spencer
6ed81e253c Use the SymbolTable::isEmpty() method instead of checking for no value 
planes. A SymbolTable could still have types in it! This fixes problems
with two regression tests that failed because a symbol table that only
contained types was being omitted from bytecode files. Thanks to Chris
for the reduced test case that helped find this immediately.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@13842 91177308-0d34-0410-b5e6-96231b3b80d8
 2004-05-27 20:18:51 +00:00
Chris Lattner
c52663c4ed This code is a real mess, but at least get the JIT *building* on platforms 
(such as plan 9) without mmap.  Of course it won't RUN... but that's another
step.  :)


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@13839 91177308-0d34-0410-b5e6-96231b3b80d8
 2004-05-27 18:03:56 +00:00
Chris Lattner
a0846a3fa7 Add support for dos-style files 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@13837 91177308-0d34-0410-b5e6-96231b3b80d8
 2004-05-27 17:49:14 +00:00
Chris Lattner
e1368aef23 Fix InstCombine/load.ll & PR347. 
This code hadn't been updated after the "structs with more than 256 elements"
related changes to the GEP instruction.  Also it was not handling the
ConstantAggregateZero class.

Now it does!


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@13834 91177308-0d34-0410-b5e6-96231b3b80d8
 2004-05-27 17:30:27 +00:00
Chris Lattner
8dfe5705b1 Implement constant folding of fmod, which is used a lot in povray 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@13823 91177308-0d34-0410-b5e6-96231b3b80d8
 2004-05-27 07:25:00 +00:00
Chris Lattner
b18b9d7374 Restructure call constant folding code a bit to make it simpler 
Add support for acos/asin/atan.  188.ammp contains three calls to acos with
constant arguments.  Constant folding it allows elimination of those 3 calls
and three FP divisions of the results.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@13821 91177308-0d34-0410-b5e6-96231b3b80d8
 2004-05-27 06:26:28 +00:00
Chris Lattner
bed85ff010 Header file moved 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@13813 91177308-0d34-0410-b5e6-96231b3b80d8
 2004-05-27 05:41:36 +00:00
Chris Lattner
a5648f2ea2 Signals.h header moved. Eventually this should move into a lib/System library, 
but not right now.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@13811 91177308-0d34-0410-b5e6-96231b3b80d8
 2004-05-27 05:31:24 +00:00
Chris Lattner
d895ffe122 Changes to make libSupport build on systems that don't have the wait syscall. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@13806 91177308-0d34-0410-b5e6-96231b3b80d8
 2004-05-27 01:20:55 +00:00
Alkis Evlogimenos
75dbe8eafa Add constructors that take a BasicBlock to append to, to the rest of 
the llvm::Instruction hierarchy.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@13800 91177308-0d34-0410-b5e6-96231b3b80d8
 2004-05-27 00:15:23 +00:00
Alkis Evlogimenos
fe3a093bc6 Do not pass a null pointer if this instruction is not prepended or 
appended anywhere.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@13798 91177308-0d34-0410-b5e6-96231b3b80d8
 2004-05-26 22:50:28 +00:00
Alkis Evlogimenos
f6e8cb4954 Inline trivial constructors. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@13797 91177308-0d34-0410-b5e6-96231b3b80d8
 2004-05-26 22:07:18 +00:00
Reid Spencer
b03de0c780 Several clean ups suggested by Chris: remove tabs, make SlotMachine do lazy 
initialization so we don't scan large Modules/Functions needlessly, tighten
up restrictions on what can be put in SlotMachine (no Constants that aren't
GlobalValues).


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@13796 91177308-0d34-0410-b5e6-96231b3b80d8
 2004-05-26 21:56:09 +00:00
Reid Spencer
75719bf239 Provide the correct patch for bug 345. The solution is to add a setTypeName 
function to llvmAsmParser.y and then use it in the one place in the grammar
that needs it. Also had to make Type::setName public because setTypeName
needs it in order to retain compatibility with setValueName.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@13795 91177308-0d34-0410-b5e6-96231b3b80d8
 2004-05-26 21:48:31 +00:00
Alkis Evlogimenos
e5828f1fa7 Refactor common initialization code in private init() functions. 
This is a first step in supplying append to basic block constructors
for all instruction types.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@13793 91177308-0d34-0410-b5e6-96231b3b80d8
 2004-05-26 21:41:09 +00:00
Alkis Evlogimenos
99c58f4910 Use one destination constructor for the unconditional branch. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@13792 91177308-0d34-0410-b5e6-96231b3b80d8
 2004-05-26 21:38:14 +00:00
Chris Lattner
85acba6d58 Fix PR344: the incorrect remove was being used. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@13790 91177308-0d34-0410-b5e6-96231b3b80d8
 2004-05-26 17:20:52 +00:00
Chris Lattner
42fbc7e809 A quick and ugly hack to fix PR345. I used TypeTy specifically to make 
Reid cringe :)


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@13788 91177308-0d34-0410-b5e6-96231b3b80d8
 2004-05-26 17:08:25 +00:00
Reid Spencer
798ff64328 Part of bug 122: 
This change removes the BuildBytecodeInfo flag from the SlotCalculator
class. This flag was needed to distinguish between the Bytecode/Writer
and the AsmWriter. Now that AsmWriter doesn't use SlotCalculator, we can
remove this flag and simplify some code. Also, some minor name changes
to CachedWriter.h needed to be committed (missed in previous commit).


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@13785 91177308-0d34-0410-b5e6-96231b3b80d8
 2004-05-26 07:37:11 +00:00
Reid Spencer
0d1b77e282 Part of bug 122. Removed dependency of AsmWriter on SlotCalculator by 
incorporating a significantly simpler "SlotMachine" into this file. The
SlotMachine is tailored for use by only the AsmWriter whose requirements
for slot numbers are vastly different than from the Bytecode/Writer. Code
change passes all Feature and Regression tests.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@13784 91177308-0d34-0410-b5e6-96231b3b80d8
 2004-05-26 07:18:52 +00:00
Tanya Lattner
ebac64534c Adding scheduling class. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@13783 91177308-0d34-0410-b5e6-96231b3b80d8
 2004-05-26 06:27:36 +00:00
Tanya Lattner
4cffb588f5 Updating my cvs versions. THis is still in progress and much will be changed. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@13782 91177308-0d34-0410-b5e6-96231b3b80d8
 2004-05-26 06:27:18 +00:00
Brian Gaeke
1812268126 Add a (not very meaningful) default constructor for AllocInfo objects. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@13773 91177308-0d34-0410-b5e6-96231b3b80d8
 2004-05-25 20:43:47 +00:00
Reid Spencer
6b1f58b6a4 Put SlotTable.h inclusion back at front of list to be coding standards 
compliant. Thanks, Chris.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@13771 91177308-0d34-0410-b5e6-96231b3b80d8
 2004-05-25 20:09:05 +00:00
Reid Spencer
a85b8cf110 Make the constructor explicit so we can't implicitly convert bool to 
SlotTable.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@13766 91177308-0d34-0410-b5e6-96231b3b80d8
 2004-05-25 19:09:25 +00:00
Reid Spencer
3751bd607b Make some improvements suggested by Chris. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@13765 91177308-0d34-0410-b5e6-96231b3b80d8
 2004-05-25 19:03:21 +00:00
Reid Spencer
293a55f9f0 Adding the initial implementation of the SlotTable class. This class is 
the Abstract Data Type that holds slot number values and associates them
with Type* and Value*. The SlotTable is simply the holder of the slot
numbers and provides a controlled interface for building the table. It does
not enforce any particular idiom or functionality for manipulating the slot
numbers.

This is part of bug_122. The SlotCalculator and SlotMachine classes will
follow.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@13764 91177308-0d34-0410-b5e6-96231b3b80d8
 2004-05-25 18:44:51 +00:00
Alkis Evlogimenos
2662aa0f00 Remove this file as well as it is no longer needed nor it compiles 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@13762 91177308-0d34-0410-b5e6-96231b3b80d8
 2004-05-25 18:24:27 +00:00
Reid Spencer
fa452c0550 Document a couple functions. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@13761 91177308-0d34-0410-b5e6-96231b3b80d8
 2004-05-25 18:14:38 +00:00
Reid Spencer
94f2df295d Changed to use SymbolTable's new iteration interfaces. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@13759 91177308-0d34-0410-b5e6-96231b3b80d8
 2004-05-25 17:29:59 +00:00
Reid Spencer
b152f9ff78 Changed to use SymbolTable's new lookup interface. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@13758 91177308-0d34-0410-b5e6-96231b3b80d8
 2004-05-25 17:29:21 +00:00
Reid Spencer
875510805f Made it illegal to pass a Type* through one of the Value* interfaces. The 
SymbolTable will now assert if this is done. This didn't find any incorrect
usage of SymbolTable but will prevent future mistakes until Type != Value.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@13755 91177308-0d34-0410-b5e6-96231b3b80d8
 2004-05-25 15:20:47 +00:00
Reid Spencer
9231ac8b6f Convert to SymbolTable's new iteration interface. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@13754 91177308-0d34-0410-b5e6-96231b3b80d8
 2004-05-25 08:53:40 +00:00
Reid Spencer
af90b0d8b8 Convert to SymbolTable's new iteration interface. Remove tabs. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@13753 91177308-0d34-0410-b5e6-96231b3b80d8
 2004-05-25 08:53:29 +00:00
Reid Spencer
b870c5f7c5 Completely rewrote the class. SymbolTable now separates Type* from Value* in preparation\ 
for making Type not derive from Value. There are now separate interfaces \
for looking up, finding, and inserting Types and Values. There are also \
three separate iterator interfaces, one for type planes, one for the types \
(type type plane), and one for values within a type plane. See the \
documentation in the Header file.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@13752 91177308-0d34-0410-b5e6-96231b3b80d8
 2004-05-25 08:52:42 +00:00
Reid Spencer
567bc2cc1e Convert to SymbolTable's new lookup and iteration interfaces. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@13751 91177308-0d34-0410-b5e6-96231b3b80d8
 2004-05-25 08:52:20 +00:00
Reid Spencer
c8a1fcdb48 Remove unused header file. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@13750 91177308-0d34-0410-b5e6-96231b3b80d8
 2004-05-25 08:51:36 +00:00
Reid Spencer
3f0635e012 Make this pass simply invoke SymbolTable::strip(). 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@13749 91177308-0d34-0410-b5e6-96231b3b80d8
 2004-05-25 08:51:25 +00:00
Reid Spencer
119b342b20 Remove use of Type::TypeTy from an assert. It will go away soon. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@13748 91177308-0d34-0410-b5e6-96231b3b80d8
 2004-05-25 08:50:52 +00:00
Reid Spencer
0098bdfb97 Get rid of a wart: useless getFILE function is now a cast macro. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@13747 91177308-0d34-0410-b5e6-96231b3b80d8
 2004-05-25 08:46:15 +00:00
Vikram S. Adve
e4e97ef64d Recognize memalign and friends, and handle them specially. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@13741 91177308-0d34-0410-b5e6-96231b3b80d8
 2004-05-25 08:14:52 +00:00
Chris Lattner
3c6a0d4ae2 Implement InstCombine:shift.ll:test16, which turns (X >> C1) & C2 != C3 
into (X & (C2 << C1)) != (C3 << C1), where the shift may be either left or
right and the compare may be any one.

This triggers 1546 times in 176.gcc alone, as it is a common pattern that
occurs for bitfield accesses.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@13740 91177308-0d34-0410-b5e6-96231b3b80d8
 2004-05-25 06:32:08 +00:00
Chris Lattner
c971025b01 Implement some helpers 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@13738 91177308-0d34-0410-b5e6-96231b3b80d8
 2004-05-25 05:32:43 +00:00
Chris Lattner
a710ddc9c4 Implement instcombine/cast.ll:test16: 
Canonicalize cast X to bool into a setne instruction


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@13736 91177308-0d34-0410-b5e6-96231b3b80d8
 2004-05-25 04:29:21 +00:00
Tanya Lattner
17fb34bf8c Moved MachineBasicBlock deconstructor to cpp file and removed it from LeakDetector to fix memory leak bug. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@13718 91177308-0d34-0410-b5e6-96231b3b80d8
 2004-05-24 07:14:35 +00:00
Chris Lattner
b11a99bd39 Fix a bug in my previous checkin 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@13717 91177308-0d34-0410-b5e6-96231b3b80d8
 2004-05-24 06:24:46 +00:00
Tanya Lattner
792699c46e Added MachineFunction parent* to MachineBasicBlock. Customized ilist template 
to set the parent when a MachineBasicBlock is added to a MachineFunction.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@13716 91177308-0d34-0410-b5e6-96231b3b80d8
 2004-05-24 06:11:51 +00:00
Chris Lattner
5bf3ce2b7c Eliminate an explicit use of the LLVM basic block, using getParent instead, 
which simplifies the code


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@13707 91177308-0d34-0410-b5e6-96231b3b80d8
 2004-05-24 03:44:52 +00:00
Tanya Lattner
0c63e03e04 Changed clone to be const. 
Changed copy constructor to set parent, prev, and next pointers to null.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@13706 91177308-0d34-0410-b5e6-96231b3b80d8
 2004-05-24 03:14:18 +00:00
Chris Lattner
f52988a92d Spelling people's names right is kinda important 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@13702 91177308-0d34-0410-b5e6-96231b3b80d8
 2004-05-23 21:27:29 +00:00
Chris Lattner
99c59e8e21 Add support for accurate garbage collection to the LLVM code generators 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@13696 91177308-0d34-0410-b5e6-96231b3b80d8
 2004-05-23 21:23:35 +00:00
Chris Lattner
df04097f87 Add some notes to myself, no functional changes 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@13695 91177308-0d34-0410-b5e6-96231b3b80d8
 2004-05-23 21:23:12 +00:00
Chris Lattner
bbdbf30238 minor wording change 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@13694 91177308-0d34-0410-b5e6-96231b3b80d8
 2004-05-23 21:22:55 +00:00
Chris Lattner
befa499d45 Fix cases where we missed inlining some more obvious candidates because the 
caller was in an SCC.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@13693 91177308-0d34-0410-b5e6-96231b3b80d8
 2004-05-23 21:22:17 +00:00
Chris Lattner
74c68ffd5f Simplify the interface and remove an unneeded #include 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@13692 91177308-0d34-0410-b5e6-96231b3b80d8
 2004-05-23 21:21:35 +00:00
Chris Lattner
9e7cc2f0d4 Fairly substantial changes to update the alias analysis we are querying as 
we make the transformation.  This allows us to use interprocedural alias
analyses successfully.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@13691 91177308-0d34-0410-b5e6-96231b3b80d8
 2004-05-23 21:21:17 +00:00
Chris Lattner
2741c97104 Adjust to the changes in the AliasSetTracker interface 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@13690 91177308-0d34-0410-b5e6-96231b3b80d8
 2004-05-23 21:20:19 +00:00
Chris Lattner
057f78ab4e Add support for replacement of formal arguments with simpler expressions. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@13689 91177308-0d34-0410-b5e6-96231b3b80d8
 2004-05-23 21:19:55 +00:00
Chris Lattner
08005dfdc9 Implement the -lowergc pass which is used by code generators (like the CBE) 
that do not have builtin support for garbage collection.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@13688 91177308-0d34-0410-b5e6-96231b3b80d8
 2004-05-23 21:19:22 +00:00
Chris Lattner
e899705c27 Recognize and verify the new GC intrinsics. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@13687 91177308-0d34-0410-b5e6-96231b3b80d8
 2004-05-23 21:16:51 +00:00
Chris Lattner
5a24d70d99 Changes to work with the changes to the AliasAnalysis interface. The -no-aa 
class is now in the BasicAliasAnalysis.cpp file


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@13684 91177308-0d34-0410-b5e6-96231b3b80d8
 2004-05-23 21:15:48 +00:00
Chris Lattner
b52f440860 Move the -no-aa AA implementation into this file since both of these 
alias analysis implementations are special: they do not autoforward to a
chained implementation of alias analysis


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@13683 91177308-0d34-0410-b5e6-96231b3b80d8
 2004-05-23 21:15:12 +00:00
Chris Lattner
484e3027b2 Updates to work with the new auto-forwarding AA interface changes 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@13682 91177308-0d34-0410-b5e6-96231b3b80d8
 2004-05-23 21:14:27 +00:00
Chris Lattner
2412a05b80 Fix a really nasty bug with the -disable-ds-field-sensitivity option 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@13681 91177308-0d34-0410-b5e6-96231b3b80d8
 2004-05-23 21:14:09 +00:00
Chris Lattner
1bf3408f96 Update to match the autochaining interface that the AA interface uses 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@13680 91177308-0d34-0410-b5e6-96231b3b80d8
 2004-05-23 21:13:51 +00:00
Chris Lattner
0f312d6998 Implement the interfaces to update value numbering information. Add an 
assert.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@13679 91177308-0d34-0410-b5e6-96231b3b80d8
 2004-05-23 21:13:24 +00:00
Chris Lattner
c43e0ae350 Rename a method 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@13676 91177308-0d34-0410-b5e6-96231b3b80d8
 2004-05-23 21:10:58 +00:00
Chris Lattner
e995a2abb3 Add a simple implementation of Andersen's interprocedural pointer analysis 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@13666 91177308-0d34-0410-b5e6-96231b3b80d8
 2004-05-23 21:00:47 +00:00
Tanya Lattner
b5159ed0cb Fixed up my changes to add support for cloning Machine Instructions. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@13665 91177308-0d34-0410-b5e6-96231b3b80d8
 2004-05-23 20:58:02 +00:00
Tanya Lattner
466b534a57 Adding support to clone MachineInstr 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@13661 91177308-0d34-0410-b5e6-96231b3b80d8
 2004-05-23 19:35:12 +00:00
Vikram S. Adve
052682f1c3 Inline both direct and indirect callees in the CBU phase because 
a direct callee may have indirect callees and so may have changed.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@13649 91177308-0d34-0410-b5e6-96231b3b80d8
 2004-05-23 08:00:34 +00:00
Vikram S. Adve
c5204fb6f8 Complete rewrite of the code that merges DS graphs for equivalence classes 
of functions called at a common call site.  The rewrite inlines the
resulting graphs bottom-up on the SCCs of the CBU call graph.  It also
simplifies the merging of equivalence classes by exploiting the fact that
functions in non-trivial SCCs are already merged.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@13645 91177308-0d34-0410-b5e6-96231b3b80d8
 2004-05-23 07:54:02 +00:00
Brian Gaeke
79333da2bb Fix a typo in a comment. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@13643 91177308-0d34-0410-b5e6-96231b3b80d8
 2004-05-23 05:10:06 +00:00
Chris Lattner
0f9e9d0ad2 Fix for PR340: Verifier misses malformed switch instruction 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@13618 91177308-0d34-0410-b5e6-96231b3b80d8
 2004-05-21 16:47:21 +00:00
Chris Lattner
433e25a920 Fix to make the CBE always emit comparisons inline. Hopefully this will 
fix the really bad code we're getting on PPC.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@13609 91177308-0d34-0410-b5e6-96231b3b80d8
 2004-05-20 20:25:50 +00:00
Brian Gaeke
ceabd97423 Fix a bug in outputting branches to constant PCs. Since the PC is supplied as 
a full 64-bit address, it must be adjusted to fit in the branch instruction's
immediate field. (This is only used in the reoptimizer, for now.)


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@13608 91177308-0d34-0410-b5e6-96231b3b80d8
 2004-05-20 07:43:40 +00:00
Brian Gaeke
a900452d37 Minor simplification: eliminate a dyn_cast. 
Fix a typo in a debug message.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@13607 91177308-0d34-0410-b5e6-96231b3b80d8
 2004-05-19 21:30:01 +00:00
Brian Gaeke
c58a7f4b3c Add CloneTraceInto(), which is based on (and has mostly the same 
effects as) CloneFunctionInto().


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@13601 91177308-0d34-0410-b5e6-96231b3b80d8
 2004-05-19 09:08:14 +00:00
Brian Gaeke
6129af3fb1 Move RemapInstruction() to ValueMapper, so that it can be shared with 
CloneTrace, and because it is primarily an operation on ValueMaps.  It
is now a global (non-static) function which can be pulled in using
ValueMapper.h.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@13600 91177308-0d34-0410-b5e6-96231b3b80d8
 2004-05-19 09:08:12 +00:00
Brian Gaeke
2fea9ade55 Fold two assertions with backwards error messages into one with a 
correct error message.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@13590 91177308-0d34-0410-b5e6-96231b3b80d8
 2004-05-17 21:15:18 +00:00
Brian Gaeke
cc9620ca29 Clean up this pass somewhat: 
Add better comments, including a better head-of-file comment.
Prune #includes.
Fix a FIXME that Chris put here by using doInitialization().
Use DEBUG() to print out debug msgs.
Give names to basic blocks inserted by this pass.
Expand tabs.
Use InsertProfilingInitCall() from ProfilingUtils to insert the initialize call.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@13581 91177308-0d34-0410-b5e6-96231b3b80d8
 2004-05-14 21:21:52 +00:00
Brian Gaeke
09015d9468 Don't keep track of references to LLVM BasicBlocks while emitting; use 
MachineBasicBlocks instead.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@13568 91177308-0d34-0410-b5e6-96231b3b80d8
 2004-05-14 06:54:58 +00:00
Brian Gaeke
3fb5d1a6cc Support MachineBasicBlock operands on RawFrm instructions. 
Get rid of separate numbering for LLVM BasicBlocks; use the automatically
generated MachineBasicBlock numbering.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@13567 91177308-0d34-0410-b5e6-96231b3b80d8
 2004-05-14 06:54:57 +00:00
Brian Gaeke
9f088e481c Generate branch machine instructions with MachineBasicBlock operands instead of 
LLVM BasicBlock operands.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@13566 91177308-0d34-0410-b5e6-96231b3b80d8
 2004-05-14 06:54:56 +00:00
Chris Lattner
fa28bb4601 This was not meant to be committed 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@13565 91177308-0d34-0410-b5e6-96231b3b80d8
 2004-05-13 20:56:34 +00:00
Chris Lattner
82fec4e31d Fix a nasty bug that caused us to unroll EXTREMELY large loops due to overflow 
in the size calculation.

This is not something you want to see:
Loop Unroll: F[main] Loop %no_exit Loop Size = 2 Trip Count = 2147483648 - UNROLLING!

The problem was that 2*2147483648 == 0.

Now we get:
Loop Unroll: F[main] Loop %no_exit Loop Size = 2 Trip Count = 2147483648 - TOO LARGE: 4294967296>100

Thanks to some anonymous person playing with the demo page that repeatedly
caused zion to go into swapping land.  That's one way to ensure you'll get
a quick bugfix.  :)

Testcase here: Transforms/LoopUnroll/2004-05-13-DontUnrollTooMuch.ll


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@13564 91177308-0d34-0410-b5e6-96231b3b80d8
 2004-05-13 20:43:31 +00:00
Chris Lattner
b7cb9ffd34 Two more improvements for null pointer handling: storing a null pointer 
and passing a null pointer into a function.

For this testcase:

void %test(int** %X) {
  store int* null, int** %X
  call void %test(int** null)
  ret void
}

we now generate this:

test:
        sub %ESP, 12
        mov %EAX, DWORD PTR [%ESP + 16]
        mov DWORD PTR [%EAX], 0
        mov DWORD PTR [%ESP], 0
        call test
        add %ESP, 12
        ret

instead of this:

test:
        sub %ESP, 12
        mov %EAX, DWORD PTR [%ESP + 16]
        mov %ECX, 0
        mov DWORD PTR [%EAX], %ECX
        mov %EAX, 0
        mov DWORD PTR [%ESP], %EAX
        call test
        add %ESP, 12
        ret


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@13558 91177308-0d34-0410-b5e6-96231b3b80d8
 2004-05-13 15:26:48 +00:00
Chris Lattner
9f1b531090 Second half of my fixed-sized-alloca patch. This folds the LEA to compute 
the alloca address into common operations like loads/stores.

In a simple testcase like this (which is just designed to excersize the
alloca A, nothing more):

int %test(int %X, bool %C) {
        %A = alloca int
        store int %X, int* %A
        store int* %A, int** %G
        br bool %C, label %T, label %F
T:
        call int %test(int 1, bool false)
        %V = load int* %A
        ret int %V
F:
        call int %test(int 123, bool true)
        %V2 = load int* %A
        ret int %V2
}

We now generate:

test:
        sub %ESP, 12
        mov %EAX, DWORD PTR [%ESP + 16]
        mov %CL, BYTE PTR [%ESP + 20]
***     mov DWORD PTR [%ESP + 8], %EAX
        mov %EAX, OFFSET G
        lea %EDX, DWORD PTR [%ESP + 8]
        mov DWORD PTR [%EAX], %EDX
        test %CL, %CL
        je .LBB2 # PC rel: F
.LBB1:  # T
        mov DWORD PTR [%ESP], 1
        mov DWORD PTR [%ESP + 4], 0
        call test
***     mov %EAX, DWORD PTR [%ESP + 8]
        add %ESP, 12
        ret
.LBB2:  # F
        mov DWORD PTR [%ESP], 123
        mov DWORD PTR [%ESP + 4], 1
        call test
***     mov %EAX, DWORD PTR [%ESP + 8]
        add %ESP, 12
        ret

Instead of:

test:
        sub %ESP, 20
        mov %EAX, DWORD PTR [%ESP + 24]
        mov %CL, BYTE PTR [%ESP + 28]
***     lea %EDX, DWORD PTR [%ESP + 16]
***     mov DWORD PTR [%EDX], %EAX
        mov %EAX, OFFSET G
        mov DWORD PTR [%EAX], %EDX
        test %CL, %CL
***     mov DWORD PTR [%ESP + 12], %EDX
        je .LBB2 # PC rel: F
.LBB1:  # T
        mov DWORD PTR [%ESP], 1
        mov %EAX, 0
        mov DWORD PTR [%ESP + 4], %EAX
        call test
***     mov %EAX, DWORD PTR [%ESP + 12]
***     mov %EAX, DWORD PTR [%EAX]
        add %ESP, 20
        ret
.LBB2:  # F
        mov DWORD PTR [%ESP], 123
        mov %EAX, 1
        mov DWORD PTR [%ESP + 4], %EAX
        call test
***     mov %EAX, DWORD PTR [%ESP + 12]
***     mov %EAX, DWORD PTR [%EAX]
        add %ESP, 20
        ret


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@13557 91177308-0d34-0410-b5e6-96231b3b80d8
 2004-05-13 15:12:43 +00:00
Chris Lattner
cb2fd557ee Substantially improve code generation for address exposed locals (aka fixed 
sized allocas in the entry block).  Instead of generating code like this:

entry:
  reg1024 = ESP+1234
... (much later)
  *reg1024 = 17


Generate code that looks like this:
entry:
  (no code generated)
... (much later)
  t = ESP+1234
  *t = 17

The advantage being that we DRAMATICALLY reduce the register pressure for these
silly temporaries (they were all being spilled to the stack, resulting in very
silly code).  This is actually a manual implementation of rematerialization :)

I have a patch to fold the alloca address computation into loads & stores, which
will make this much better still, but just getting this right took way too much time
and I'm sleepy.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@13554 91177308-0d34-0410-b5e6-96231b3b80d8
 2004-05-13 07:40:27 +00:00
Chris Lattner
bee887211b Fix a really nasty bug from my changes on Monday to PHIElim. These changes 
broke obsequi and a lot of other things.  It all boiled down to MBB being
overloaded in an inner scope and me confusing it with the one in the outer
scope.  Ugh!


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@13517 91177308-0d34-0410-b5e6-96231b3b80d8
 2004-05-12 21:47:57 +00:00
Brian Gaeke
d657c42dce Start NextMBBNumber out at zero. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@13515 91177308-0d34-0410-b5e6-96231b3b80d8
 2004-05-12 21:35:23 +00:00
Brian Gaeke
0bcb1ad7be Add non-const MachineBasicBlock::getParent() accessor method. 
MBBs start out as #-1. When a MBB is added to a MachineFunction, it
gets the next available unique MBB number. If it is removed from a
MachineFunction, it goes back to being #-1.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@13514 91177308-0d34-0410-b5e6-96231b3b80d8
 2004-05-12 21:35:22 +00:00