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Author SHA1 Message Date
Chris Lattner
f82435d4d7 new testcase 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@34612 91177308-0d34-0410-b5e6-96231b3b80d8
 2007-02-25 22:23:15 +00:00
Chris Lattner
876e5942bc new testcase 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@34611 91177308-0d34-0410-b5e6-96231b3b80d8
 2007-02-25 22:02:01 +00:00
Jim Laskey
183f47fb1a Fix for PR1224. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@34610 91177308-0d34-0410-b5e6-96231b3b80d8
 2007-02-25 21:43:59 +00:00
Jim Laskey
98770d4ed2 Test for PR1224. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@34609 91177308-0d34-0410-b5e6-96231b3b80d8
 2007-02-25 21:43:21 +00:00
Chris Lattner
1cf5574636 Rework GlobalValue::removeDeadConstantUsers to always remove dead constant 
exprs hanging off a global, even if the global is not otherwise dead.  This
requires some tricky iterator gymnastics.

This implements Transforms/GlobalOpt/constantexpr-dangle.ll by deleting a
constantexpr that made it appear that the address of the function was taken.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@34608 91177308-0d34-0410-b5e6-96231b3b80d8
 2007-02-25 21:06:13 +00:00
Chris Lattner
2aef09a06b new testcase. @foo should be marked fastcc by globalopt 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@34607 91177308-0d34-0410-b5e6-96231b3b80d8
 2007-02-25 21:04:39 +00:00
Chris Lattner
3f3098c8ca disable some noisy debug output 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@34606 91177308-0d34-0410-b5e6-96231b3b80d8
 2007-02-25 20:42:59 +00:00
Chris Lattner
4ddf7a4ca6 no really, this is the right patch 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@34605 91177308-0d34-0410-b5e6-96231b3b80d8
 2007-02-25 20:01:40 +00:00
Chris Lattner
640c0ac01d always promote float varargs to double. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@34604 91177308-0d34-0410-b5e6-96231b3b80d8
 2007-02-25 19:59:18 +00:00
Reid Spencer
5d0d05c9b8 1. Provide more detail in file comment. 
2. Move comments for methods to .h file, delete them in .cpp file.
3. All places that were doing manual clear of high order bits now call the
   clearUnusedBits() method in order to not depend on undefined behavior
   of the >> operator when the number of bits shifted equals the word size.
4. Reduced # of loc by using the new result of clearUnusedBits() method.
5. Simplified logic (decreased indentation) in a few places.
6. Added code comments to larger functions that needed them.
7. Added FIXME notes about weak implementations of things (e.g. bit-by-bit
   shift right is sub-optimal).


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@34603 91177308-0d34-0410-b5e6-96231b3b80d8
 2007-02-25 19:32:03 +00:00
Reid Spencer
c68c2243dc Fix clearUnusedBits to not depend on "undefined behavior" of >> operator 
when the bit size is equal to the word size. This happens to work out okay
on x86, but might not on other platforms. The change just detects when
there are no bits to clear (because BitWidth is a multiple of the word size)
and returns early.

Also, move some comments from .cpp file into header.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@34602 91177308-0d34-0410-b5e6-96231b3b80d8
 2007-02-25 19:26:01 +00:00
Chris Lattner
1fa3d9ef93 one important bugfix: PPC32 didn't have both elf and macho support for 
external symbols and global addresses.  Add the missing ones.

one important workaround: PPCISD::CALL is matched by both PPCcall_ELF
and PPCcall_Macho, disable the _ELF patterns for now.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@34601 91177308-0d34-0410-b5e6-96231b3b80d8
 2007-02-25 19:20:53 +00:00
Chris Lattner
c25904f23a add -enable-eh 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@34600 91177308-0d34-0410-b5e6-96231b3b80d8
 2007-02-25 18:50:48 +00:00
Chris Lattner
251db1890c optimize duplicate ValueMap lookups 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@34599 91177308-0d34-0410-b5e6-96231b3b80d8
 2007-02-25 18:40:32 +00:00
Dale Johannesen
ce74de46dd cosmetic changes from review of last patch. obvious 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@34598 91177308-0d34-0410-b5e6-96231b3b80d8
 2007-02-25 18:31:31 +00:00
Evan Cheng
de4e942faa A couple of more places where a register liveness has been extended and its last kill should be updated accordingly. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@34597 91177308-0d34-0410-b5e6-96231b3b80d8
 2007-02-25 09:51:27 +00:00
Evan Cheng
0badfea274 Add an assertion. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@34596 91177308-0d34-0410-b5e6-96231b3b80d8
 2007-02-25 09:47:31 +00:00
Evan Cheng
48ef398ebd Fix a couple of bugs related IsDead back propagation during coalescing. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@34595 91177308-0d34-0410-b5e6-96231b3b80d8
 2007-02-25 09:46:31 +00:00
Evan Cheng
16191f0333 If the liveinterval of the source instruction has been extended, remove the IsKill marker. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@34594 91177308-0d34-0410-b5e6-96231b3b80d8
 2007-02-25 09:41:59 +00:00
Evan Cheng
bc025fbb64 Only add liveinterval to livein set if it isn't assigned a stack slot. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@34593 91177308-0d34-0410-b5e6-96231b3b80d8
 2007-02-25 09:39:02 +00:00
Chris Lattner
5e265b29ea fastcc functions that return double values now return them in xmm0 on x86-32. 
This implements CodeGen/X86/fp-stack-ret.ll:test[23]


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@34592 91177308-0d34-0410-b5e6-96231b3b80d8
 2007-02-25 09:31:16 +00:00
Chris Lattner
113296ba51 verify that double is returned in XMM0 if the function is fastcc. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@34591 91177308-0d34-0410-b5e6-96231b3b80d8
 2007-02-25 09:30:03 +00:00
Chris Lattner
4dfccf4b48 allow vectors to be passed to stdcall/fastcall functions 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@34590 91177308-0d34-0410-b5e6-96231b3b80d8
 2007-02-25 09:14:25 +00:00
Chris Lattner
2a9bdd74f2 move LowerRET into the 'Return Value Calling Convention Implementation' 
section of the file.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@34589 91177308-0d34-0410-b5e6-96231b3b80d8
 2007-02-25 09:12:39 +00:00
Chris Lattner
339b439d47 make all Lower*CallTo implementations use LowerCallResult to handle their 
result value stuff.  This eliminates a bunch of duplicated code and now
GetRetValueLocs is the sole place that decides where a value is returned.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@34588 91177308-0d34-0410-b5e6-96231b3b80d8
 2007-02-25 09:10:05 +00:00
Chris Lattner
09c75a4372 pass the calling convention into Lower*CallTo, instead of using ad-hoc flags. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@34587 91177308-0d34-0410-b5e6-96231b3b80d8
 2007-02-25 09:06:15 +00:00
Chris Lattner
3085e15117 factor a bunch of code out of LowerCCCCallTo into a new LowerCallResult 
function.  This function now uses GetRetValueLocs to determine *where*
the result values are located and concerns itself with *how* to pull the
values out.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@34586 91177308-0d34-0410-b5e6-96231b3b80d8
 2007-02-25 08:59:22 +00:00
Chris Lattner
2b02a4409f move some code around, pass in calling conv, even though it is unused 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@34585 91177308-0d34-0410-b5e6-96231b3b80d8
 2007-02-25 08:29:00 +00:00
Chris Lattner
753d9cb50e fold trivial token factor nodes. This allows us to compile 
test/CodeGen/X86/fp-stack-ret.ll into:

        movl 4(%esp), %eax
        fldl (%eax)
        ret

instead of:

        subl $12, %esp
        movl 16(%esp), %eax
        movsd (%eax), %xmm0
        movsd %xmm0, (%esp)
        fldl (%esp)
        addl $12, %esp
        ret

by eliminating a token factor that blocked a check.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@34584 91177308-0d34-0410-b5e6-96231b3b80d8
 2007-02-25 08:24:27 +00:00
Chris Lattner
f4acec1be8 new testcase 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@34583 91177308-0d34-0410-b5e6-96231b3b80d8
 2007-02-25 08:23:01 +00:00
Chris Lattner
cb18656734 simplify result value lowering by splitting the selection of *where* to return 
registers out from the logic of *how* to return them.

This changes X86-64 to mark EAX live out when returning a 32-bit value,
where before it marked RAX liveout.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@34582 91177308-0d34-0410-b5e6-96231b3b80d8
 2007-02-25 08:15:11 +00:00
Reid Spencer
31d16b039a Allow this to compile now that the header file is checked in. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@34581 91177308-0d34-0410-b5e6-96231b3b80d8
 2007-02-25 07:30:14 +00:00
Reid Spencer
20b1f5db1e Add a private constructor for efficiency. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@34580 91177308-0d34-0410-b5e6-96231b3b80d8
 2007-02-25 07:29:03 +00:00
Chris Lattner
7d53a1c45e make void-return not a special case 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@34579 91177308-0d34-0410-b5e6-96231b3b80d8
 2007-02-25 07:18:38 +00:00
Chris Lattner
5a88b837f2 eliminate a bunch more temporary vectors from X86 lowering. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@34578 91177308-0d34-0410-b5e6-96231b3b80d8
 2007-02-25 07:10:00 +00:00
Chris Lattner
d96d072332 eliminate temporary vectors created during X86 lowering. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@34577 91177308-0d34-0410-b5e6-96231b3b80d8
 2007-02-25 06:40:16 +00:00
Chris Lattner
9cb9626abf remove std::vector's in RET lowering. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@34576 91177308-0d34-0410-b5e6-96231b3b80d8
 2007-02-25 06:21:57 +00:00
Chris Lattner
4283c118cf verify i128 return on x86-64 continues to codegen optimally. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@34575 91177308-0d34-0410-b5e6-96231b3b80d8
 2007-02-25 06:06:49 +00:00
Chris Lattner
9f0bc659c8 implement support for the linux/ppc function call ABI. Patch by 
Nicolas Geoffray!


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@34574 91177308-0d34-0410-b5e6-96231b3b80d8
 2007-02-25 05:34:32 +00:00
Chris Lattner
eb95d41cd3 Add XLForm_1_ext template, patch by Nicolas Geoffray. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@34573 91177308-0d34-0410-b5e6-96231b3b80d8
 2007-02-25 05:07:49 +00:00
Chris Lattner
456bc87e78 Improve JIT support for linux/ppc: Patch by Nicolas Geoffray! 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@34572 91177308-0d34-0410-b5e6-96231b3b80d8
 2007-02-25 05:04:13 +00:00
Chris Lattner
0f07e55312 this doesn't compile, disable it 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@34571 91177308-0d34-0410-b5e6-96231b3b80d8
 2007-02-25 02:32:44 +00:00
Chris Lattner
3eba454021 remove these. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@34570 91177308-0d34-0410-b5e6-96231b3b80d8
 2007-02-25 02:28:21 +00:00
Reid Spencer
24c4a8f548 Clean up lshr and ashr to coding standards. 
Handle the single word cases for shiftAmt == BitWidth.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@34569 91177308-0d34-0410-b5e6-96231b3b80d8
 2007-02-25 01:56:07 +00:00
Dale Johannesen
598270a68d remove crediting of Evan Cheng and me. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@34568 91177308-0d34-0410-b5e6-96231b3b80d8
 2007-02-25 01:42:36 +00:00
Chris Lattner
6618039f9f initialize a instance variable 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@34567 91177308-0d34-0410-b5e6-96231b3b80d8
 2007-02-25 01:28:05 +00:00
Chris Lattner
1a5ed97f35 update this for llvm-gcc4 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@34566 91177308-0d34-0410-b5e6-96231b3b80d8
 2007-02-25 01:11:36 +00:00
Reid Spencer
438d71eea4 Whoops, last word with bits in large shift left wasn't correct. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@34565 91177308-0d34-0410-b5e6-96231b3b80d8
 2007-02-25 01:08:58 +00:00
Reid Spencer
8755380fff Fix the > 64 bits case for left shift. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@34564 91177308-0d34-0410-b5e6-96231b3b80d8
 2007-02-25 00:56:44 +00:00
Dale Johannesen
99c49a4b94 Removed WaterListOffset, inserted BBOffsets. Remove TODO item about this 
from README.
When no water available, use end of block if in range.  (More to do here.)


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@34563 91177308-0d34-0410-b5e6-96231b3b80d8
 2007-02-25 00:47:03 +00:00