Commit Graph

36957 Commits

Author SHA1 Message Date
Chris Lattner
bf1d8a7099 optimize away stackrestore calls that have no intervening alloca or call.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@47258 91177308-0d34-0410-b5e6-96231b3b80d8
2008-02-18 06:12:38 +00:00
Chris Lattner
28cb2051c8 upgrade this test.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@47257 91177308-0d34-0410-b5e6-96231b3b80d8
2008-02-18 06:11:00 +00:00
Duncan Sands
e26dec68a1 Clarify that 'sret' only applies to pointers, and
only applies to the first parameter.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@47256 91177308-0d34-0410-b5e6-96231b3b80d8
2008-02-18 04:19:38 +00:00
Owen Anderson
117bbd37b8 Make the definition of the noalias attribute clearer.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@47255 91177308-0d34-0410-b5e6-96231b3b80d8
2008-02-18 04:09:01 +00:00
Owen Anderson
9eb948b466 Duncan pointed out that we can fast fail here, because the sret parameter of
a function must be the first parameter.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@47254 91177308-0d34-0410-b5e6-96231b3b80d8
2008-02-18 04:06:26 +00:00
Owen Anderson
ae708a3d91 Fix a comment, and a bug where we weren't applying the tail call logic in cases that failed the first test.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@47253 91177308-0d34-0410-b5e6-96231b3b80d8
2008-02-18 03:52:21 +00:00
Owen Anderson
9aa7c35cee Fix bugs that Chris noticed in my last patch.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@47252 91177308-0d34-0410-b5e6-96231b3b80d8
2008-02-18 02:31:23 +00:00
Chris Lattner
d5b8d92b9f simplify some code, BreakUpSubtract always returns nonnull now.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@47251 91177308-0d34-0410-b5e6-96231b3b80d8
2008-02-18 02:18:25 +00:00
Chris Lattner
0ab5a4ae55 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.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@47250 91177308-0d34-0410-b5e6-96231b3b80d8
2008-02-18 02:11:28 +00:00
Owen Anderson
823391ae6e Add support for setting parameters to CallSite.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@47249 91177308-0d34-0410-b5e6-96231b3b80d8
2008-02-18 00:10:55 +00:00
Owen Anderson
7d54254c9c Add a predicate to Argument to check for the StructRet attribute.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@47248 91177308-0d34-0410-b5e6-96231b3b80d8
2008-02-17 23:22:28 +00:00
Owen Anderson
9b636cb338 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.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@47247 91177308-0d34-0410-b5e6-96231b3b80d8
2008-02-17 21:29:08 +00:00
Chris Lattner
dd12f96c5e Fold (-x + -y) -> -(x+y) which promotes better association, fixing
the second half of PR2047


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@47244 91177308-0d34-0410-b5e6-96231b3b80d8
2008-02-17 21:03:36 +00:00
Chris Lattner
5329bb22e9 fix pasto
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@47242 91177308-0d34-0410-b5e6-96231b3b80d8
2008-02-17 20:54:40 +00:00
Chris Lattner
0b0803ae15 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 


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@47241 91177308-0d34-0410-b5e6-96231b3b80d8
2008-02-17 20:51:26 +00:00
Chris Lattner
f06c3c29ac upgrade and simplify this test.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@47240 91177308-0d34-0410-b5e6-96231b3b80d8
2008-02-17 20:48:43 +00:00
Chris Lattner
9bc5ed78c8 make the logic for breaking up subtracts more explicit, no
functionality change.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@47239 91177308-0d34-0410-b5e6-96231b3b80d8
2008-02-17 20:44:51 +00:00
Tanya Lattner
6263f94674 Remove llvm-upgrade.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@47238 91177308-0d34-0410-b5e6-96231b3b80d8
2008-02-17 20:02:20 +00:00
Chris Lattner
456012c72e move PR2053 to here.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@47237 91177308-0d34-0410-b5e6-96231b3b80d8
2008-02-17 19:43:57 +00:00
Chris Lattner
5f137244c2 fix this test.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@47232 91177308-0d34-0410-b5e6-96231b3b80d8
2008-02-17 00:15:25 +00:00
Tanya Lattner
d349a4eda1 Remove llvm-upgrade
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@47231 91177308-0d34-0410-b5e6-96231b3b80d8
2008-02-17 00:15:09 +00:00
Tanya Lattner
2d290f9dc4 Remove llvm-upgrade.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@47230 91177308-0d34-0410-b5e6-96231b3b80d8
2008-02-17 00:13:09 +00:00
Chris Lattner
26fdb11e4e this test isn't useful since we added @ notation for globals.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@47229 91177308-0d34-0410-b5e6-96231b3b80d8
2008-02-17 00:12:03 +00:00
Chris Lattner
8a39257fa5 this line was commented out.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@47228 91177308-0d34-0410-b5e6-96231b3b80d8
2008-02-17 00:09:08 +00:00
Tanya Lattner
709f6ecd03 Remove llvm-upgrade and update tests.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@47227 91177308-0d34-0410-b5e6-96231b3b80d8
2008-02-16 23:55:46 +00:00
Tanya Lattner
91974939d0 Removing llvm upgrade, so remove tests specific to llvm-upgrade and update the tests that used it.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@47225 91177308-0d34-0410-b5e6-96231b3b80d8
2008-02-16 23:27:24 +00:00
Duncan Sands
3d5378ff8e Remove any 'nest' parameter attributes if the function
is not passed as an argument to a trampoline intrinsic.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@47220 91177308-0d34-0410-b5e6-96231b3b80d8
2008-02-16 20:56:04 +00:00
Duncan Sands
b3a94608b3 Some micro-optimizations.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@47219 91177308-0d34-0410-b5e6-96231b3b80d8
2008-02-16 20:53:06 +00:00
Andrew Lenharth
d497d9fab6 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.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@47213 91177308-0d34-0410-b5e6-96231b3b80d8
2008-02-16 14:46:26 +00:00
Duncan Sands
051bb7b075 Teach LegalizeTypes how to expand the operands of
br_cc.  This fixes 5 "make check" failures.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@47212 91177308-0d34-0410-b5e6-96231b3b80d8
2008-02-16 10:29:26 +00:00
Duncan Sands
17bcde9f9b Try to clarify which compilers can be used for the
build.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@47211 91177308-0d34-0410-b5e6-96231b3b80d8
2008-02-16 09:47:41 +00:00
Evan Cheng
559f4224d6 Refactor some code; check if commuteInstruction is able to commute the instruction.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@47208 91177308-0d34-0410-b5e6-96231b3b80d8
2008-02-16 02:32:17 +00:00
Andrew Lenharth
22c5c1b2df llvm.memory.barrier, and impl for x86 and alpha
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@47204 91177308-0d34-0410-b5e6-96231b3b80d8
2008-02-16 01:24:58 +00:00
Bill Wendling
527c250a90 Fix typos.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@47200 91177308-0d34-0410-b5e6-96231b3b80d8
2008-02-16 01:09:25 +00:00
Dan Gohman
42a77880a8 Rename CountMemOperands to ComputeMemOperandsEnd to reflect what
it actually does. Simplify CountOperands a little by reusing
ComputeMemOperandsEnd. And reword some comments for both.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@47198 91177308-0d34-0410-b5e6-96231b3b80d8
2008-02-16 00:36:48 +00:00
Dan Gohman
94ebde1d45 Revert 47177, which was incorrect.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@47196 91177308-0d34-0410-b5e6-96231b3b80d8
2008-02-16 00:25:40 +00:00
Chris Lattner
d1bb1c2765 upgrade this test, which wasn't testing the right thing since llvm-upgrade came around.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@47194 91177308-0d34-0410-b5e6-96231b3b80d8
2008-02-15 23:58:25 +00:00
Chris Lattner
01042345c8 rename llx -> ll
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@47192 91177308-0d34-0410-b5e6-96231b3b80d8
2008-02-15 23:51:48 +00:00
Evan Cheng
de7f560744 This test is not interesting.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@47189 91177308-0d34-0410-b5e6-96231b3b80d8
2008-02-15 23:06:21 +00:00
Scott Michel
0123b7dcfa 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.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@47188 91177308-0d34-0410-b5e6-96231b3b80d8
2008-02-15 23:05:48 +00:00
Chris Lattner
9f8ec25805 simplify this.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@47187 91177308-0d34-0410-b5e6-96231b3b80d8
2008-02-15 22:57:17 +00:00
Dale Johannesen
35e11cd70b Modify test to expect improved code.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@47182 91177308-0d34-0410-b5e6-96231b3b80d8
2008-02-15 22:05:15 +00:00
Evan Cheng
bd3e5aac74 The copy instruction being coalesced will be removed, it is not a kill.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@47179 91177308-0d34-0410-b5e6-96231b3b80d8
2008-02-15 21:36:51 +00:00
Ted Kremenek
e3e09574ae 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.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@47178 91177308-0d34-0410-b5e6-96231b3b80d8
2008-02-15 21:12:46 +00:00
Dan Gohman
53c607f562 Skip over the defs and start at the uses when looking for operands
with the TIED_TO attribute.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@47177 91177308-0d34-0410-b5e6-96231b3b80d8
2008-02-15 20:59:17 +00:00
Dan Gohman
3b66555c53 Use the TargetInstrDescr to determine the number of operands
that should be checked for the TIED_TO attribute instead of
using CountOperands.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@47176 91177308-0d34-0410-b5e6-96231b3b80d8
2008-02-15 20:50:13 +00:00
Duncan Sands
31fdedde04 Fix this test on linux, which returns S242
using sret.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@47173 91177308-0d34-0410-b5e6-96231b3b80d8
2008-02-15 19:42:13 +00:00
Duncan Sands
ca3a56f2fb 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.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@47172 91177308-0d34-0410-b5e6-96231b3b80d8
2008-02-15 19:34:17 +00:00
Chris Lattner
ec321b4d64 Handle \n's in value names for more targets. The asm printers
really really really need refactoring :(



git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@47171 91177308-0d34-0410-b5e6-96231b3b80d8
2008-02-15 19:04:54 +00:00
Chris Lattner
3502d0dac3 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".



git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@47170 91177308-0d34-0410-b5e6-96231b3b80d8
2008-02-15 18:56:05 +00:00