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Author SHA1 Message Date
Andrew Lenharth
95762124a1 PCMarker support for DAG and Alpha 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@20965 91177308-0d34-0410-b5e6-96231b3b80d8
 2005-03-31 21:24:06 +00:00
Duraid Madina
beeaab28a5 Assorted fixes: 
* Stop being pessimistic about output register allocation
  * Start to handle function descriptors: compute target GPs and so on
  when doing indirect calls etc. Not there yet, though. For the moment,
  we try to use _indirect_ branches wherever possible, to stress test
  function descriptors.
  * FP divide-by-zero should work now
  * add varargs (it doesn't work, though)

At this point, all of SingleSource passes (modulo C++ tests that are due
to issues with the CFE, see note in the README.) Much of MultiSource also
passes although there's still a ton of bugs around. Something for me to
work on tomorrow, then. :)


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@20960 91177308-0d34-0410-b5e6-96231b3b80d8
 2005-03-31 12:31:11 +00:00
Duraid Madina
1f867b103d * declare local common symbols as such (.lcomm, not merely .common) 
* begin great adventure into correct function descriptor materialization


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@20956 91177308-0d34-0410-b5e6-96231b3b80d8
 2005-03-31 07:40:24 +00:00
Duraid Madina
290f64c1cb daintyness 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@20955 91177308-0d34-0410-b5e6-96231b3b80d8
 2005-03-31 07:36:43 +00:00
Duraid Madina
291e1266c1 add what we need to fudge a 'floating point conditional move', this is 
used to get FP div-by-zero working properly (shunt the right answer
depending on how frcpa sets its predicate output)


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@20954 91177308-0d34-0410-b5e6-96231b3b80d8
 2005-03-31 07:32:32 +00:00
Nate Begeman
96fc681d7e Pass the correct values to the chain argument for node construction during 
LowerCallTo.
Handle ISD::ADD in SelectAddr, allowing us to have nonzero immediates for
loads and stores, amazing!


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@20946 91177308-0d34-0410-b5e6-96231b3b80d8
 2005-03-31 02:05:53 +00:00
Nate Begeman
74d734574e Rewrite LowerCallTo and Select(ISD::CALL) to properly handle float varargs 
Tell the SelectionDAG ISel to expand SEXTLOAD of i1 and i8, rather than
  complicate the code in ISD::SEXTLOAD to do it by hand
Combine the FP and Int ISD::LOAD codegen
Generate better code for constant pool loads

As a result, all of Shootout, and likely many other programs are now
working.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@20945 91177308-0d34-0410-b5e6-96231b3b80d8
 2005-03-31 00:15:26 +00:00
Nate Begeman
fdcf3418e0 Fix calls whose arguments fit entirely in registers to not break the Chain. 
Implement SINT_TO_FP and UINT_TO_FP
Remove some dead code from the simple ISel


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@20944 91177308-0d34-0410-b5e6-96231b3b80d8
 2005-03-30 19:38:35 +00:00
Misha Brukman
109d9e8592 * Put command-line switches and function names in <tt> 
* Add links to mailing lists and publications


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@20943 91177308-0d34-0410-b5e6-96231b3b80d8
 2005-03-30 19:14:24 +00:00
Andrew Lenharth
ba05ad605e yea, fine Duraid 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@20942 91177308-0d34-0410-b5e6-96231b3b80d8
 2005-03-30 18:22:52 +00:00
Duraid Madina
81dbf44d1b Add section for Itanium 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@20941 91177308-0d34-0410-b5e6-96231b3b80d8
 2005-03-30 05:33:54 +00:00
Nate Begeman
58f718cd97 Fix frame index code to generate legal PowerPC instructions. About half of 
Shootout now works.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@20940 91177308-0d34-0410-b5e6-96231b3b80d8
 2005-03-30 02:23:08 +00:00
Nate Begeman
01d05266f9 Fix external symbol printing in the AsmPrinter. Tell the ISel that we 
don't support things like memcpy directly.  This allows a handful of the
Shootout programs to work, yay!


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@20939 91177308-0d34-0410-b5e6-96231b3b80d8
 2005-03-30 01:45:43 +00:00
Misha Brukman
2c5b1d2405 * Add section for Alpha 
* Remove extraneous subsections


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@20938 91177308-0d34-0410-b5e6-96231b3b80d8
 2005-03-30 01:14:38 +00:00
Chris Lattner
a33ef4816d Instead of setting up the CFG edges at selectiondag construction time, set 
them up after the code has been emitted.  This allows targets to select one
mbb as multiple mbb's as needed.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@20937 91177308-0d34-0410-b5e6-96231b3b80d8
 2005-03-30 01:10:47 +00:00
Chris Lattner
71df3f8cab don't depend on the cfg being set up yet 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@20936 91177308-0d34-0410-b5e6-96231b3b80d8
 2005-03-30 01:10:00 +00:00
Nate Begeman
23afcfb063 Fix BranchCC (it's still dumb), and implement FP select (also dumb) 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@20935 91177308-0d34-0410-b5e6-96231b3b80d8
 2005-03-29 22:48:55 +00:00
Nate Begeman
74747861b9 Implement integer select and i1 sign extend 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@20934 91177308-0d34-0410-b5e6-96231b3b80d8
 2005-03-29 22:24:51 +00:00
Nate Begeman
3316252034 Implement SetCC, fix ZERO_EXTEND_INREG 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@20933 91177308-0d34-0410-b5e6-96231b3b80d8
 2005-03-29 21:54:38 +00:00
Chris Lattner
175b9635cc import all of the rest of the stubs that dsa uses for direct comparison 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@20932 91177308-0d34-0410-b5e6-96231b3b80d8
 2005-03-29 20:36:05 +00:00
Tanya Lattner
5e9f352346 Compare dependence analysis with llvm instructions versus machine instrutions. the problem with using machine instructions and alias analysis is that aa does not handle tmp instructions. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@20931 91177308-0d34-0410-b5e6-96231b3b80d8
 2005-03-29 20:35:10 +00:00
Tanya Lattner
5ec3a63f6d Dependence analyzer that just determines dependences within a loop for loads and stores using alias analysis. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@20930 91177308-0d34-0410-b5e6-96231b3b80d8
 2005-03-29 20:33:42 +00:00
Chris Lattner
77b505670c learn about some more functions. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@20929 91177308-0d34-0410-b5e6-96231b3b80d8
 2005-03-29 20:04:24 +00:00
Andrew Lenharth
c05138387a Fix up some types and constants 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@20928 91177308-0d34-0410-b5e6-96231b3b80d8
 2005-03-29 19:24:04 +00:00
Chris Lattner
9342a939eb Fix a problem where we not marking incoming arguments to functions with 
external linkage as incomplete.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@20927 91177308-0d34-0410-b5e6-96231b3b80d8
 2005-03-29 19:16:59 +00:00
Chris Lattner
f51d3bd676 Fix a bug that andrew noticed where we do not correctly sign/zero extend 
returned integer values all of the way to 64-bits (we only did it to 32-bits
leaving the top bits undefined).  This causes problems for targets like alpha
whose ABI's define the top bits too.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@20926 91177308-0d34-0410-b5e6-96231b3b80d8
 2005-03-29 19:09:56 +00:00
Chris Lattner
cfba7981eb there is no point comparing against null pointer. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@20925 91177308-0d34-0410-b5e6-96231b3b80d8
 2005-03-29 17:44:52 +00:00
Chris Lattner
76bc5ce5c4 Fix a major problem with global variable initializers. This could cause 
us to have stuff pointing to the null pointer, which makes no sense
(the null ptr is an ssa value, not the null object)


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@20922 91177308-0d34-0410-b5e6-96231b3b80d8
 2005-03-29 17:21:53 +00:00
Chris Lattner
848132d671 fix a warning in the optimized build 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@20920 91177308-0d34-0410-b5e6-96231b3b80d8
 2005-03-29 15:13:27 +00:00
Chris Lattner
4de57fd9e9 add some more functions, ignore setcc for constraints! 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@20917 91177308-0d34-0410-b5e6-96231b3b80d8
 2005-03-29 06:52:20 +00:00
Chris Lattner
b1515fe522 disable this transformation in the one obscure case that really pessimizes 
pointer analysis.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@20916 91177308-0d34-0410-b5e6-96231b3b80d8
 2005-03-29 06:37:47 +00:00
Chris Lattner
0b77be8f0f there is no reason to run -instcombine -instcombine! 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@20915 91177308-0d34-0410-b5e6-96231b3b80d8
 2005-03-29 06:25:11 +00:00
Chris Lattner
8a44643d61 Handle "known" external calls context sensitively, add support for realloc 
and a couple of other functions that are important.

Handle aggregate undef values for gv initializers


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@20914 91177308-0d34-0410-b5e6-96231b3b80d8
 2005-03-29 06:09:07 +00:00
Nate Begeman
f3d08f31b3 Implement div, rem, and frameindex 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@20907 91177308-0d34-0410-b5e6-96231b3b80d8
 2005-03-29 00:03:27 +00:00
Nate Begeman
f70b576ccc Pattern ISel: fix argument loading for i64s (thanks chris) 
Simple  ISel: fix i64 subtract


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@20903 91177308-0d34-0410-b5e6-96231b3b80d8
 2005-03-28 23:08:54 +00:00
Nate Begeman
ca12a2bd91 Remove fake instruction 'subc' (mnemonic for subfc). 
More pattern isel updates


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@20902 91177308-0d34-0410-b5e6-96231b3b80d8
 2005-03-28 22:28:37 +00:00
Chris Lattner
d4e50bb2e2 implement legalization of build_pair for nate 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@20901 91177308-0d34-0410-b5e6-96231b3b80d8
 2005-03-28 22:03:13 +00:00
Andrew Lenharth
7f4ec3b2e3 First step in adding pcmarker intrinsic. Second step (soon) is adding backend support. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@20900 91177308-0d34-0410-b5e6-96231b3b80d8
 2005-03-28 20:05:49 +00:00
Nate Begeman
9db505ca9d Implement proper loads and zero-extends of all types 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@20897 91177308-0d34-0410-b5e6-96231b3b80d8
 2005-03-28 19:36:43 +00:00
Duraid Madina
ae8bd73634 Emit .global @function and .global @object entries so the Intel ias 
assembler may be used; identify LLVM output as such.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@20892 91177308-0d34-0410-b5e6-96231b3b80d8
 2005-03-28 15:21:43 +00:00
Chris Lattner
f392c64ec6 Teach andersens that non-escaping memory cannot be mod/ref'd by external fn calls. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@20891 91177308-0d34-0410-b5e6-96231b3b80d8
 2005-03-28 06:21:17 +00:00
Misha Brukman
be5e2f4f9b Fix grammar 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@20890 91177308-0d34-0410-b5e6-96231b3b80d8
 2005-03-28 04:32:12 +00:00
Chris Lattner
c3c9fd0dd6 Make anders-aa much more precise by not being completely pessimistic about 
external functions.  Teach it about a few important ones.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@20889 91177308-0d34-0410-b5e6-96231b3b80d8
 2005-03-28 04:03:52 +00:00
Jeff Cohen
e60f69c054 Fix VC++ build breakage 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@20888 91177308-0d34-0410-b5e6-96231b3b80d8
 2005-03-28 02:52:28 +00:00
Alkis Evlogimenos
ab7ada3ed6 Rename createPromoteMemoryToRegister() to 
createPromoteMemoryToRegisterPass() to be consistent with other pass
creation functions.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@20885 91177308-0d34-0410-b5e6-96231b3b80d8
 2005-03-28 02:01:12 +00:00
Chris Lattner
493f6366cb wrap some long lines 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@20884 91177308-0d34-0410-b5e6-96231b3b80d8
 2005-03-27 22:03:46 +00:00
Chris Lattner
93ab219244 remove ... 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@20883 91177308-0d34-0410-b5e6-96231b3b80d8
 2005-03-27 21:57:09 +00:00
Chris Lattner
40ee8ce28b speed up steens by using spliceFrom, improve its precision by realizing that 
an incomplete node cannot alias a complete node.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@20882 91177308-0d34-0410-b5e6-96231b3b80d8
 2005-03-27 21:56:55 +00:00
Chris Lattner
267a1b02a2 teach andersens about undef 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@20881 91177308-0d34-0410-b5e6-96231b3b80d8
 2005-03-27 18:58:23 +00:00
Chris Lattner
5f4c0a88ee Don't give up completely, maybe other AA can say something about this. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@20873 91177308-0d34-0410-b5e6-96231b3b80d8
 2005-03-27 00:02:33 +00:00