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Author SHA1 Message Date
Evan Cheng
d0a66e438f Add a ARM specific pre-allocation pass that re-schedule loads / stores from 
consecutive addresses togther. This makes it easier for the post-allocation pass
to form ldm / stm.

This is step 1. We are still missing a lot of ldm / stm opportunities because
of register allocation are not done in the desired order. More enhancements
coming.

llvm-svn: 73291
 2009-06-13 09:12:55 +00:00
Devang Patel
bcc1187643 llvm.dbg.region.end() intrinsic is not required to be in _last_ basic block in a function. If that happens then any basic block that follows (lexically) the block with regin.end will not have scope info available. LexicalScopeStack relies on processing basic block in CFG order, but this processing order is not guaranteed. Things get complicated when the optimizer gets a chance to optimizer IR with dbg intrinsics. 
Apply defensive patch to preserve at least one lexical scope till the end of function.

llvm-svn: 73282
 2009-06-13 02:16:18 +00:00
Bruno Cardoso Lopes
9cb41aaf57 Type change cleanup on JCE and MCE. Patch by Aaron Gray 
llvm-svn: 73271
 2009-06-12 23:51:56 +00:00
Dan Gohman
67ec24b541 Adjust this test's regex strings so that they work regardless 
of the target's pointer size. This avoids the need for -m32 on
the llvm-gcc command-line, which some targets may not support.

llvm-svn: 73270
 2009-06-12 23:31:14 +00:00
Dan Gohman
e27a52f9b1 Add -m32 to llvm-gcc commands, so that this test behaves as expected 
on systems which default to a 64-bit target.

llvm-svn: 73265
 2009-06-12 23:02:02 +00:00
Owen Anderson
a3bb398631 Improve style. 
llvm-svn: 73258
 2009-06-12 22:07:19 +00:00
Owen Anderson
247bdbde16 This is supposed to be a preorder numbering of the dominator tree, not the CFG. 
llvm-svn: 73257
 2009-06-12 21:50:22 +00:00
Owen Anderson
8c879bba61 Now with less iterator invalidation, and other forms of crashing! 
llvm-svn: 73256
 2009-06-12 21:41:29 +00:00
Evan Cheng
98216808fe If killed register is defined by implicit_def, do not clear it since it's live range may overlap another def of same register. 
llvm-svn: 73255
 2009-06-12 21:34:26 +00:00
Chris Lattner
75c88a3730 second half of fix for PR4366: don't zap store to null of 
non-default addrspaces.

llvm-svn: 73253
 2009-06-12 21:01:07 +00:00
Evan Cheng
2f784781aa Mark some pattern-less instructions as neverHasSideEffects. 
llvm-svn: 73252
 2009-06-12 20:46:18 +00:00
Devang Patel
95b4743214 Document noredzone and noimplicitfloat function attributes. 
llvm-svn: 73246
 2009-06-12 19:45:19 +00:00
Devang Patel
8d9aa4249a Clear AbstractInstanceRootMap at the end of the function. 
llvm-svn: 73244
 2009-06-12 19:24:05 +00:00
Dan Gohman
f9b0419cd8 Don't do (x - (y - z)) --> (x + (z - y)) on floating-point types, because 
it may round differently. This fixes PR4374.

llvm-svn: 73243
 2009-06-12 19:23:25 +00:00
Dan Gohman
43f66023c3 Give Instruction::isSameOperationAs a corresponding comment to note 
the relationship with MergeFunctions.cpp's isEquivalentOperation,
and make a trivial code reordering so that the two functions are
easier to compare.

Fix the name of Instruction::isSameOperationAs in MergeFunction.cpp's
isEquivalentOperation's comment, and fix a nearby 80-column violation.

llvm-svn: 73241
 2009-06-12 19:03:05 +00:00
Dale Johannesen
b5be21ef41 Testcase for llvm-gcc patch 73238. 
llvm-svn: 73239
 2009-06-12 18:41:53 +00:00
Bill Wendling
94a47465af Waste time fixing something that should have been fixed before. 
llvm-svn: 73236
 2009-06-12 18:02:40 +00:00
Nick Lewycky
32fec8ff24 Keep callers of a weak function calling it, instead of the non-weak equivalent. 
llvm-svn: 73235
 2009-06-12 17:16:48 +00:00
Arnold Schwaighofer
780e3addf8 Fix Bug 4278: X86-64 with -tailcallopt calling convention 
out of sync with regular cc.

The only difference between the tail call cc and the normal
cc was that one parameter register - R9 - was reserved for
calling functions through a function pointer. After time the
tail call cc has gotten out of sync with the regular cc. 

We can use R11 which is also caller saved but not used as
parameter register for potential function pointers and
remove the special tail call cc on x86-64.

llvm-svn: 73233
 2009-06-12 16:26:57 +00:00
Nick Lewycky
effec6b472 Don't forget to match the calling convention when producing a thunk. 
llvm-svn: 73231
 2009-06-12 16:04:00 +00:00
Nick Lewycky
1e36649f95 Given two identical weak functions, produce one internal function and two weak 
thunks.

llvm-svn: 73230
 2009-06-12 15:56:56 +00:00
Duncan Sands
92153907f3 Tweak GenLibDeps.pl so it works on solaris. 
Patch by Edward O'Callaghan.

llvm-svn: 73228
 2009-06-12 14:23:42 +00:00
Nicolas Geoffray
72523163ad After obtaining the lock, look if the function has been codegen'd by 
another thread.

llvm-svn: 73227
 2009-06-12 14:11:08 +00:00
Nick Lewycky
cc239d7680 This test is wrong. If you have two weak functions F and G you can't make 
either one call the other since either one can be replaced at link time, and
they need to be independent.

llvm-svn: 73225
 2009-06-12 13:24:41 +00:00
Duncan Sands
f0b761540d Add clang support to the nightly test script. 
Patch by Edward O'Callaghan.

llvm-svn: 73224
 2009-06-12 13:02:52 +00:00
Duncan Sands
7d79ddff64 Credits for Edward O'Callaghan. 
llvm-svn: 73223
 2009-06-12 12:52:24 +00:00
Nick Lewycky
5b80791480 Add an "are types equivalent" operation that ignores the types that a pointer 
points to while analyzing all other fields.

Use FoldingSetNodeID to produce a good hash. This dramatically decreases run
times.

Emit thunks. This means that it can look at all functions regardless of what
the linkage is or if the address is taken, but unfortunately some small
functions can be even shorter than the thunk because our backend doesn't yet
realize it can just turn these into jumps. This means that this pass will
pessimize code on average.

llvm-svn: 73222
 2009-06-12 08:04:51 +00:00
Nick Lewycky
61f78a2674 Fix regular expression. 
llvm-svn: 73221
 2009-06-12 05:39:02 +00:00
Nick Lewycky
bbce41f698 Don't remove aggregate-typed module level constants before encoding functions 
since functions may contain aggregate constants too.

llvm-svn: 73220
 2009-06-12 05:20:12 +00:00
Nick Lewycky
127b1cc900 In an XFAIL line, treat "XFAIL: foo*bar" as a regular expression to be matched 
against the target triple, instead of equivalent to "XFAIL: *".

llvm-svn: 73219
 2009-06-12 05:18:32 +00:00
Oscar Fuentes
9f16ef410d CMake: New variable LLVM_LIBDIR_SUFFIX. 
Patch by Ingmar Vanhassel!

llvm-svn: 73216
 2009-06-12 02:49:53 +00:00
Misha Brukman
5f9665b84a Update script to tell the user where to get the CodeSourcery crosstool, if it's 
not found.

llvm-svn: 73213
 2009-06-12 02:04:47 +00:00
Misha Brukman
797945ae86 Added two scripts to aid with building Linux/x86 -> Linux/ARM crosstools, using 
CodeSourcery's provided GCC-based crosstools, from which we use binutils.

llvm-svn: 73212
 2009-06-12 01:55:57 +00:00
Nick Lewycky
e3b5c81cb8 XFAIL this on PPC Linux. This keeps showing up in the buildbot and isn't easy to fix, and I'd like it to stop masking 
real failures.

llvm-svn: 73211
 2009-06-11 23:43:02 +00:00
Eli Friedman
74e9f6c070 Misc x86 README updates: remove a couple of already-fixed issues, 
add a few suggestions from looking at some assembly code.

llvm-svn: 73210
 2009-06-11 23:07:04 +00:00
Bruno Cardoso Lopes
2b429fb48f Use forward declarations and move TargetELFWriterInfo impl to a new file. 
llvm-svn: 73209
 2009-06-11 22:13:00 +00:00
Dale Johannesen
60e261db11 Test for rev 73205 (PR 4349) 
llvm-svn: 73206
 2009-06-11 20:48:09 +00:00
Bill Wendling
dea5417ce0 Alphabetize. 
llvm-svn: 73203
 2009-06-11 20:13:35 +00:00
Bill Wendling
038b8dd7b5 Remove unused parameter warnings. 
llvm-svn: 73202
 2009-06-11 20:10:02 +00:00
Bruno Cardoso Lopes
9b68e8653f Support for ELF Visibility 
Emission for globals, using the correct data sections
Function alignment can be computed for each target using TargetELFWriterInfo
Some small fixes

llvm-svn: 73201
 2009-06-11 19:16:03 +00:00
Chris Lattner
e0360f8ae8 Fix 4366: store to null in non-default addr space should not be 
turned into unreachable.

llvm-svn: 73195
 2009-06-11 17:54:56 +00:00
Sanjiv Gupta
4d678059ba Generate libcalls for floating point arithmetic and casting operations. 
llvm-svn: 73194
 2009-06-11 16:50:48 +00:00
Duncan Sands
9b5e3effef Cosmetic changes to parameter attribute verification. 
llvm-svn: 73188
 2009-06-11 08:11:03 +00:00
Duncan Sands
c12241a948 Avoid leaking memory in an error path. Noticed 
by cppcheck.

llvm-svn: 73187
 2009-06-11 08:09:49 +00:00
Sanjiv Gupta
1f8f8ce400 More formatting. 
llvm-svn: 73185
 2009-06-11 06:55:48 +00:00
Sanjiv Gupta
04cb690c99 Fixed source comments. No functionality change. 
llvm-svn: 73184
 2009-06-11 06:49:55 +00:00
Oscar Fuentes
fd06248a88 CMake: Documented how to cross-compile with CMake. 
llvm-svn: 73181
 2009-06-11 04:45:08 +00:00
Oscar Fuentes
cfe2266e89 CMake: Fixed parallel build problem related to native tblgen when 
cross-compiling.

llvm-svn: 73180
 2009-06-11 04:16:10 +00:00
Oscar Fuentes
c2d42ced17 CMake: Updated list of files on lib/CodeGen/CMakeLists.txt. 
llvm-svn: 73174
 2009-06-10 22:53:59 +00:00
Jay Foad
5affd7b2c9 Implement and use new method Function::hasAddressTaken(). 
llvm-svn: 73164
 2009-06-10 08:41:11 +00:00