Commit Graph

36898 Commits

Author SHA1 Message Date
Owen Anderson
b0891af18b Fix a comment, and a bug where we weren't applying the tail call logic in cases that failed the first test.
llvm-svn: 47253
2008-02-18 03:52:21 +00:00
Owen Anderson
0ef73a5d06 Fix bugs that Chris noticed in my last patch.
llvm-svn: 47252
2008-02-18 02:31:23 +00:00
Chris Lattner
0b6ec4a6b2 simplify some code, BreakUpSubtract always returns nonnull now.
llvm-svn: 47251
2008-02-18 02:18:25 +00:00
Chris Lattner
d5885d43ef bitcasts of pointers are always pointers.
If we see a memcpy of a pointer, make sure to check later
uses of the pointer as well.

llvm-svn: 47250
2008-02-18 02:11:28 +00:00
Owen Anderson
b0dee942db Add support for setting parameters to CallSite.
llvm-svn: 47249
2008-02-18 00:10:55 +00:00
Owen Anderson
48dd6a0f96 Add a predicate to Argument to check for the StructRet attribute.
llvm-svn: 47248
2008-02-17 23:22:28 +00:00
Owen Anderson
884f6801df Teach getModRefInfo that memcpy, memmove, and memset don't "capture" memory addresses.
Also, noalias arguments are be considered "like" stack allocated ones for this purpose, because
the only way they can be modref'ed is if they escape somewhere in the current function.

llvm-svn: 47247
2008-02-17 21:29:08 +00:00
Chris Lattner
2fa904b3af Fold (-x + -y) -> -(x+y) which promotes better association, fixing
the second half of PR2047

llvm-svn: 47244
2008-02-17 21:03:36 +00:00
Chris Lattner
51a663a8fe fix pasto
llvm-svn: 47242
2008-02-17 20:54:40 +00:00
Chris Lattner
4a34461d64 Split up subtracts into add+negate if they have a reassociable use or operand
that is also a subtract.  This implements PR2047 and Transforms/Reassociate/subtest2.ll 

llvm-svn: 47241
2008-02-17 20:51:26 +00:00
Chris Lattner
7cd16f34b3 upgrade and simplify this test.
llvm-svn: 47240
2008-02-17 20:48:43 +00:00
Chris Lattner
cd6f9cea98 make the logic for breaking up subtracts more explicit, no
functionality change.

llvm-svn: 47239
2008-02-17 20:44:51 +00:00
Tanya Lattner
03755061ae Remove llvm-upgrade.
llvm-svn: 47238
2008-02-17 20:02:20 +00:00
Chris Lattner
3e886fa85a move PR2053 to here.
llvm-svn: 47237
2008-02-17 19:43:57 +00:00
Chris Lattner
1ce2265908 fix this test.
llvm-svn: 47232
2008-02-17 00:15:25 +00:00
Tanya Lattner
bcf113b2ca Remove llvm-upgrade
llvm-svn: 47231
2008-02-17 00:15:09 +00:00
Tanya Lattner
71db645ff2 Remove llvm-upgrade.
llvm-svn: 47230
2008-02-17 00:13:09 +00:00
Chris Lattner
37c93d2a82 this test isn't useful since we added @ notation for globals.
llvm-svn: 47229
2008-02-17 00:12:03 +00:00
Chris Lattner
52d5239f6d this line was commented out.
llvm-svn: 47228
2008-02-17 00:09:08 +00:00
Tanya Lattner
c08b5f0208 Remove llvm-upgrade and update tests.
llvm-svn: 47227
2008-02-16 23:55:46 +00:00
Tanya Lattner
1ffe4f2e88 Removing llvm upgrade, so remove tests specific to llvm-upgrade and update the tests that used it.
llvm-svn: 47225
2008-02-16 23:27:24 +00:00
Duncan Sands
cd0325cce1 Remove any 'nest' parameter attributes if the function
is not passed as an argument to a trampoline intrinsic.

llvm-svn: 47220
2008-02-16 20:56:04 +00:00
Duncan Sands
753597d1cf Some micro-optimizations.
llvm-svn: 47219
2008-02-16 20:53:06 +00:00
Andrew Lenharth
da54523742 I cannot find a libgcc function for this builtin. Therefor expanding it to a noop (which is how it use to be treated). If someone who knows the x86 backend better than me could tell me how to get a lock prefix on an instruction, that would be nice to complete x86 support.
llvm-svn: 47213
2008-02-16 14:46:26 +00:00
Duncan Sands
22ebf8b70f Teach LegalizeTypes how to expand the operands of
br_cc.  This fixes 5 "make check" failures.

llvm-svn: 47212
2008-02-16 10:29:26 +00:00
Duncan Sands
4499f2fd9e Try to clarify which compilers can be used for the
build.

llvm-svn: 47211
2008-02-16 09:47:41 +00:00
Evan Cheng
dd13a96a60 Refactor some code; check if commuteInstruction is able to commute the instruction.
llvm-svn: 47208
2008-02-16 02:32:17 +00:00
Andrew Lenharth
c178981b85 llvm.memory.barrier, and impl for x86 and alpha
llvm-svn: 47204
2008-02-16 01:24:58 +00:00
Bill Wendling
34dd48a10c Fix typos.
llvm-svn: 47200
2008-02-16 01:09:25 +00:00
Dan Gohman
a9386d8501 Rename CountMemOperands to ComputeMemOperandsEnd to reflect what
it actually does. Simplify CountOperands a little by reusing
ComputeMemOperandsEnd. And reword some comments for both.

llvm-svn: 47198
2008-02-16 00:36:48 +00:00
Dan Gohman
9ce252af04 Revert 47177, which was incorrect.
llvm-svn: 47196
2008-02-16 00:25:40 +00:00
Chris Lattner
f8ab0af3c0 upgrade this test, which wasn't testing the right thing since llvm-upgrade came around.
llvm-svn: 47194
2008-02-15 23:58:25 +00:00
Chris Lattner
afae31f812 rename llx -> ll
llvm-svn: 47192
2008-02-15 23:51:48 +00:00
Evan Cheng
94742fb5d4 This test is not interesting.
llvm-svn: 47189
2008-02-15 23:06:21 +00:00
Scott Michel
3ad0263173 Make tblgen a little smarter about constants smaller than i32. Currently,
tblgen will complain if a sign-extended constant does not fit into a
data type smaller than i32, e.g., i16. This causes a problem when certain
hex constants are used, such as 0xff for byte masks or immediate xor
values.

tblgen will try the sign-extended value first and, if the sign extended
value would overflow, it tries to see if the unsigned value will fit.
Consequently, a software developer can now safely incant:

	(XORHIr16 R16C:$rA, 0xffff)

which is somewhat clearer and more informative than incanting:

	(XORHIr16 R16C:$rA, (i16 -1))

even if the two are bitwise equivalent.

Tblgen also outputs the 64-bit unsigned constant in the generated ISel code
when getTargetConstant() is invoked.

llvm-svn: 47188
2008-02-15 23:05:48 +00:00
Chris Lattner
2258e9fd08 simplify this.
llvm-svn: 47187
2008-02-15 22:57:17 +00:00
Dale Johannesen
15e608542e Modify test to expect improved code.
llvm-svn: 47182
2008-02-15 22:05:15 +00:00
Evan Cheng
09fee0e727 The copy instruction being coalesced will be removed, it is not a kill.
llvm-svn: 47179
2008-02-15 21:36:51 +00:00
Ted Kremenek
83e9c3ba5c Fixed bug in FoldingSetIteratorImpl where we did not correctly check if
we had reached the "fake bucket" after the last bucket, allowing the iterator
in some cases to run off the end of the hashtable.

llvm-svn: 47178
2008-02-15 21:12:46 +00:00
Dan Gohman
547cd33955 Skip over the defs and start at the uses when looking for operands
with the TIED_TO attribute.

llvm-svn: 47177
2008-02-15 20:59:17 +00:00
Dan Gohman
06ac7aca3e Use the TargetInstrDescr to determine the number of operands
that should be checked for the TIED_TO attribute instead of
using CountOperands.

llvm-svn: 47176
2008-02-15 20:50:13 +00:00
Duncan Sands
e0330d632a Fix this test on linux, which returns S242
using sret.

llvm-svn: 47173
2008-02-15 19:42:13 +00:00
Duncan Sands
bf7d428157 Teach LegalizeTypes how to promote the flags
in a ret node.  These are created as i32 constants
but on some platforms i32 is not legal.  This
fixes 26 "make check" failures, for example
Alpha/2005-07-12-TwoMallocCalls.ll.

llvm-svn: 47172
2008-02-15 19:34:17 +00:00
Chris Lattner
d55c26a77d Handle \n's in value names for more targets. The asm printers
really really really need refactoring :(

llvm-svn: 47171
2008-02-15 19:04:54 +00:00
Chris Lattner
cf98f7291b If the llvm name contains an unprintable character, don't print it in
the global comment.  This prevents printing things like:

...  # foo
bar

when the name is "foo\nbar".

llvm-svn: 47170
2008-02-15 18:56:05 +00:00
Chris Lattner
bab03a1b50 targets that support quotes for mangled names still need to escape newlines
when they occur in the name, just like " is escaped.

llvm-svn: 47169
2008-02-15 18:54:56 +00:00
Dale Johannesen
b9e1a37497 Cosmetics.
llvm-svn: 47168
2008-02-15 18:40:53 +00:00
Evan Cheng
bb357cd8a6 - Removing the infamous r2rMap_ and rep() method. Now the coalescer will update
register defs and uses after each successful coalescing.
- Also removed a number of hacks and fixed some subtle kill information bugs.

llvm-svn: 47167
2008-02-15 18:24:29 +00:00
Evan Cheng
2cb3fd8f72 Added CommuteChangesDestination(). This returns true if commuting the specified
machine instr will change its definition register.

llvm-svn: 47166
2008-02-15 18:21:33 +00:00
Evan Cheng
fff5254adf Remove unnecessary #include.
llvm-svn: 47164
2008-02-15 18:12:09 +00:00