Fix a problem where the PPC backend lost track of the fact that it had
to save and restore the LR register on entry and exit of a leaf function
that needed to access globals or the constant pool.  This should hopefully
fix oscar from sending the PPC tester spinning out of control.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@20197 91177308-0d34-0410-b5e6-96231b3b80d8

Add a sanity check.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@20195 91177308-0d34-0410-b5e6-96231b3b80d8

Add a new method to make it easy to update graphs.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@20194 91177308-0d34-0410-b5e6-96231b3b80d8

Bug fixed

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@20193 91177308-0d34-0410-b5e6-96231b3b80d8

Fix volatile load/store of pointers.  Consider this testcase:

void %test(int** %P) {
  %A = volatile load int** %P
  ret void
}

void %test2(int*** %Q) {
  %P = load int*** %Q
  volatile store int** %P, int*** %Q
  ret void
}

instead of emitting:

void test(int **l1_P) {
  int *l2_A;

  l2_A = (int **((volatile int **)l1_P));
  return;
}
void test2(int ***l2_Q) {
  int **l1_P;

  l1_P = *l2_Q;
  *((volatile int ***)l2_Q) = l1_P;
  return;
}

... which is loading/storing volatile pointers, not through volatile pointers,
emit this (which is right):

void test(int **l1_P) {
  int *l3_A;

  l3_A = *((int * volatile*)l1_P);
  return;
}
void test2(int ***l2_Q) {
  int **l1_P;

  l1_P = *l2_Q;
  *((int ** volatile*)l2_Q) = l1_P;
  return;
}

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@20191 91177308-0d34-0410-b5e6-96231b3b80d8

Bug fixed.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@20190 91177308-0d34-0410-b5e6-96231b3b80d8

New testcase for PR510.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@20189 91177308-0d34-0410-b5e6-96231b3b80d8

wow, interesting typo :)

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@20187 91177308-0d34-0410-b5e6-96231b3b80d8

execution tests shouldn't go here.  This was killing the PPC nightly tester.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@20186 91177308-0d34-0410-b5e6-96231b3b80d8

For PR496:
When llvm-gcc is not available, bypass rules for Modules and Bytecode
Libraries that require llvm-gcc and emit instead a warning that llvm-gcc
is not available. This permits "make LLVMGCC=" to build LLVM completely
without error and provides warnings about the modules and bc libs that
could not be constructed.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@20185 91177308-0d34-0410-b5e6-96231b3b80d8

Fix a bug in my previous change to this, which broke the build on sparcs.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@20184 91177308-0d34-0410-b5e6-96231b3b80d8

Print GEP offsets as signed values instead of unsigned values.  On X86, this
prints:

getelementptr (int* %A, int -1)

as: "(A) - 4" instead of "(A) + 18446744073709551612", which makes the
assembler much happier.

This fixes test/Regression/CodeGen/X86/2005-02-14-IllegalAssembler.ll,
and Benchmarks/Prolangs-C/cdecl with LLC on X86.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@20183 91177308-0d34-0410-b5e6-96231b3b80d8

A testcase that LLC produces illegal asm on for Prolangs-C/cdecl now.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@20182 91177308-0d34-0410-b5e6-96231b3b80d8

Fix the second bug attached to PR504.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@20181 91177308-0d34-0410-b5e6-96231b3b80d8

Work around GCC PR19958, which causes programs to sometimes crash after
printing help output or version info.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@20180 91177308-0d34-0410-b5e6-96231b3b80d8

Write out single characters as chars, not strings.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@20179 91177308-0d34-0410-b5e6-96231b3b80d8

Bugs fixed

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@20178 91177308-0d34-0410-b5e6-96231b3b80d8

Implement CodeGen/CBackend/2005-02-14-VolatileOperations.ll
Volatile loads and stores need to emit volatile pointer operations in C.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@20177 91177308-0d34-0410-b5e6-96231b3b80d8

new testcase

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@20176 91177308-0d34-0410-b5e6-96231b3b80d8

Update makefile to use PROJ_* makefile variables intead of BUILD_* as
required by changes to the Makefile.rules. Patch contributed by Vladimir
Merzliakov.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@20175 91177308-0d34-0410-b5e6-96231b3b80d8

Update comments to reflect new variable names. Patch contributed by
Vladimir Merzliakov.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@20174 91177308-0d34-0410-b5e6-96231b3b80d8

Give props to Andrew for the Alpha backend

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@20173 91177308-0d34-0410-b5e6-96231b3b80d8

fix setcc on floats, fixes singlesource:pi, perhaps others

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@20172 91177308-0d34-0410-b5e6-96231b3b80d8

new testcase for PR509

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@20171 91177308-0d34-0410-b5e6-96231b3b80d8

Fix the llvm bootstrap

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@20170 91177308-0d34-0410-b5e6-96231b3b80d8

Move private helper function into the only .cpp file that uses it.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@20169 91177308-0d34-0410-b5e6-96231b3b80d8

Move helper function here.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@20168 91177308-0d34-0410-b5e6-96231b3b80d8

Conform to the documented interface by null terminating argument lists!

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@20167 91177308-0d34-0410-b5e6-96231b3b80d8

Make sure to null terminate argument lists!

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@20166 91177308-0d34-0410-b5e6-96231b3b80d8

If errno is zero strerror_r does not modify the buffer, leaving it unterminated.
This causes garbage to be printed out after error messages.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@20165 91177308-0d34-0410-b5e6-96231b3b80d8

Add some updates

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@20164 91177308-0d34-0410-b5e6-96231b3b80d8

SuSE 3.3.3 is also borken.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@20163 91177308-0d34-0410-b5e6-96231b3b80d8

Do not replace ostream << Module*, only ostream << Module&.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@20157 91177308-0d34-0410-b5e6-96231b3b80d8

Print the module, not the pointer.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@20156 91177308-0d34-0410-b5e6-96231b3b80d8

Make the check for global variables the same as the one for functions. In
both cases they are looking for non-external variables/functions that do
not have internal linkage. Using "!isExternal()" is a little more
understandable than "hasInitializer()"

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@20155 91177308-0d34-0410-b5e6-96231b3b80d8

Nuke blank line.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@20154 91177308-0d34-0410-b5e6-96231b3b80d8

Minor cleanup.  No need to explicitly tell the compiler the template arguments.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@20153 91177308-0d34-0410-b5e6-96231b3b80d8

Make sure to clear the LazyFunctionLoadMap after we ParseAllFunctionBodies.
Otherwise, clients who call ParseAllFunctionBodies will attempt to parse
the function bodies twice, which is (uh) very very bad (tm).

This fixes gccld on python.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@20152 91177308-0d34-0410-b5e6-96231b3b80d8

Do not put internal symbols into the symbol table.  This shrinks the symbol
table for archives in common cases, and prevents trying to resolve a
external reference with an internal reference.  This shrinks the libpython.a
symbol table from 126302 to 19770 bytes.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@20151 91177308-0d34-0410-b5e6-96231b3b80d8

Include local time on the web page for start/end times.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@20150 91177308-0d34-0410-b5e6-96231b3b80d8

Print something useful for gccld -v with an archive.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@20148 91177308-0d34-0410-b5e6-96231b3b80d8

Fix PR506:
* Use error returned from Archive::OpenAndLoad
* Make sure only std::string is thrown so it gets caught and printed.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@20147 91177308-0d34-0410-b5e6-96231b3b80d8

Correct the recursive PHI node handling routines in a way that CANNOT induce
infinite loops (using the new replaceSymbolicValuesWithConcrete method).

This patch reverts this patch:
http://mail.cs.uiuc.edu/pipermail/llvm-commits/Week-of-Mon-20050131/023830.html

... which was an attempted fix for this problem.  Unfortunately, that patch
caused test/Regression/Transforms/IndVarsSimplify/exit_value_tests.llx to fail
and slightly castrated the entire analysis.  This patch fixes it right.

This patch is dedicated to jeffc, for making me deal with this.  :)

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@20146 91177308-0d34-0410-b5e6-96231b3b80d8

Add a new replaceSymbolicValuesWithConcrete method to the SCEV class,
adjust const'ness a bit to be more correct.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@20145 91177308-0d34-0410-b5e6-96231b3b80d8

non-ieee arith crashes passes on alpha

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@20144 91177308-0d34-0410-b5e6-96231b3b80d8

try to do better match for i32 adds

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@20143 91177308-0d34-0410-b5e6-96231b3b80d8

make FP conversion more conservative (matches gcc)

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@20142 91177308-0d34-0410-b5e6-96231b3b80d8

oops, I was sure this had already gond though the nightly tester

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@20141 91177308-0d34-0410-b5e6-96231b3b80d8

Add note about broken GCC

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@20138 91177308-0d34-0410-b5e6-96231b3b80d8

added sign extend for boolean

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@20137 91177308-0d34-0410-b5e6-96231b3b80d8

Document the newly generalized model for constant globals.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@20136 91177308-0d34-0410-b5e6-96231b3b80d8

Allow globals to be of different const'nesses when we link.
This finally resolves PR502, PR450,
and test/Regression/Linker/2005-02-12-ConstantGlobals{,-2}.ll correctly

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@20135 91177308-0d34-0410-b5e6-96231b3b80d8

New test, adjust other test.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@20134 91177308-0d34-0410-b5e6-96231b3b80d8

Reinstate this test, it is correct after all.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@20133 91177308-0d34-0410-b5e6-96231b3b80d8

This test is invalid

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@20131 91177308-0d34-0410-b5e6-96231b3b80d8

Fix for testcase Transforms/IndVarsSimplify/2005-02-11-InvokeCrash.ll
and PR504.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@20129 91177308-0d34-0410-b5e6-96231b3b80d8

new testcase for PR504

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@20128 91177308-0d34-0410-b5e6-96231b3b80d8

Actually, this testcase is invalid, the bug is in the C++ FE.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@20123 91177308-0d34-0410-b5e6-96231b3b80d8

New testcase that manyoso found compiling QT 4.0.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@20122 91177308-0d34-0410-b5e6-96231b3b80d8

Slightly expand on the instructions.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@20121 91177308-0d34-0410-b5e6-96231b3b80d8

Bug fixed

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@20118 91177308-0d34-0410-b5e6-96231b3b80d8

New testcase for PR501

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@20117 91177308-0d34-0410-b5e6-96231b3b80d8

The pool allocator is now the llvm-poolalloc module in public CVS

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@20116 91177308-0d34-0410-b5e6-96231b3b80d8

fix a bunch of regressions due to call behavior

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@20110 91177308-0d34-0410-b5e6-96231b3b80d8

Localize globals if they are only used in main(). This replaces the
global with an alloca, which eventually gets promoted into a
register. This enables a lot of other optimizations later on.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@20109 91177308-0d34-0410-b5e6-96231b3b80d8

Added new circuit finding alogrithm.

Fixed bug in graph so that phi ite diff edges are added.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@20108 91177308-0d34-0410-b5e6-96231b3b80d8

Allow modsched and local scheduling to both be run.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@20107 91177308-0d34-0410-b5e6-96231b3b80d8

so, if you beat on it, you too can talk emacs into having a sane indenting policy...  Also, optimize many function calls with pc-relative calls (partial prologue skipping for that case coming soon), try to fix the random jumps to strange places problem by pesimizing div et. al. register usage and fixing up GP before using, some calling convention tweaks, and make frame pointer unallocatable (not strickly necessary, but let's go for correctness first)

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@20106 91177308-0d34-0410-b5e6-96231b3b80d8

fix fp branch

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@20105 91177308-0d34-0410-b5e6-96231b3b80d8

Give props to Brian for V8 backend

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@20104 91177308-0d34-0410-b5e6-96231b3b80d8

* Fix spelling of `volatile'
* Align comments with tablegen elements

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@20103 91177308-0d34-0410-b5e6-96231b3b80d8

This will be moved elsewhere.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@20101 91177308-0d34-0410-b5e6-96231b3b80d8

* Use doc_code style for blocks of code
* Convert < to &lt; in <pre> block
* Use doc_hilite instead of doc_red style
* Put some classes and options in <tt> blocks

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@20100 91177308-0d34-0410-b5e6-96231b3b80d8

Do not mention colors in style names, we might want to change styles themselves

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@20099 91177308-0d34-0410-b5e6-96231b3b80d8

* Use an HTML list <ol> instead of custom superscripts in the platform notes
* Reorder software requirements list to show relative importance
* Use superscripts for footnotes in software list rather than "Note 1"
* Use new doc_notes class to separate footnotes from main doc text

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@20098 91177308-0d34-0410-b5e6-96231b3b80d8

Add style to display notes on a different background than the main text

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@20097 91177308-0d34-0410-b5e6-96231b3b80d8

Turn footnotes into links, make the page validate.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@20096 91177308-0d34-0410-b5e6-96231b3b80d8

If needed, this should be in the 'how to compile the cfe' doc.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@20095 91177308-0d34-0410-b5e6-96231b3b80d8

this should be incorporated into the build

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@20094 91177308-0d34-0410-b5e6-96231b3b80d8

* Separate superscript footnotes with a comma, otherwise it's a 2-digit number
* Make a URL into an HTML link using anchor tag
* Put code in fixed-width font
* Since the MinGW footnote is significantly more than the rest of the footnotes
  combined, it needs to have a border and background color to separate it from
  the regular flow of text for readability purposes.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@20093 91177308-0d34-0410-b5e6-96231b3b80d8

Add instructions for MINGW, contributed by Henrik Bach

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@20092 91177308-0d34-0410-b5e6-96231b3b80d8

Don't print a 'Total Execution Time' line for the 'Miscellaneous Ungrouped
Timers' section.  Since these are random timers in the program it doesn't
make sense to sum them up.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@20090 91177308-0d34-0410-b5e6-96231b3b80d8

Fix test/Regression/Assembler/2005-02-09-AsmWriterStoreBug.ll

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@20089 91177308-0d34-0410-b5e6-96231b3b80d8

New testcase that the asmwriter botches.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@20088 91177308-0d34-0410-b5e6-96231b3b80d8

Use new edge iterators to simplify some code.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@20086 91177308-0d34-0410-b5e6-96231b3b80d8

Add some iterators that should have come in long ago

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@20085 91177308-0d34-0410-b5e6-96231b3b80d8

Fix installation of configured headers when objdir != srcdir.  Patch
contributed by Vladimir Merzliakov!

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@20084 91177308-0d34-0410-b5e6-96231b3b80d8

BranchCC, nifty

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@20067 91177308-0d34-0410-b5e6-96231b3b80d8

fix store issue and an FP conversion (segfault) issue

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@20066 91177308-0d34-0410-b5e6-96231b3b80d8

IndCallGraphMap is now a pointer to a new'd map.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@20065 91177308-0d34-0410-b5e6-96231b3b80d8

Hopefully fix the build on Darwin with GCC 3.3

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@20064 91177308-0d34-0410-b5e6-96231b3b80d8

copytoreg fix

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@20063 91177308-0d34-0410-b5e6-96231b3b80d8

copyfromreg fix

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@20062 91177308-0d34-0410-b5e6-96231b3b80d8

fix load bug

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@20061 91177308-0d34-0410-b5e6-96231b3b80d8

more FP load store fixes and Load store simplifications

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@20060 91177308-0d34-0410-b5e6-96231b3b80d8

clean up load and stores alot

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@20059 91177308-0d34-0410-b5e6-96231b3b80d8

teach all loads and stores about the stack

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@20058 91177308-0d34-0410-b5e6-96231b3b80d8

prefer FP scratch registers and more check in LowerArguments

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@20057 91177308-0d34-0410-b5e6-96231b3b80d8

fix oopso

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@20056 91177308-0d34-0410-b5e6-96231b3b80d8

smarter loads and stores.  can now handle base+offset.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@20055 91177308-0d34-0410-b5e6-96231b3b80d8