Commit Graph

62220 Commits

Author SHA1 Message Date
Kevin Enderby
f59cac5ed3 Added the darwin .weak_def_can_be_hidden directive.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@107886 91177308-0d34-0410-b5e6-96231b3b80d8
2010-07-08 17:22:42 +00:00
Gabor Greif
da995609e6 only dereference iterator once in the loop
(by caching the result we save a potentially expensive dereference)

also use typedefs to shorten type declarations

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@107883 91177308-0d34-0410-b5e6-96231b3b80d8
2010-07-08 16:56:18 +00:00
Bob Wilson
8af4c54af1 Clean up a comment.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@107882 91177308-0d34-0410-b5e6-96231b3b80d8
2010-07-08 16:54:45 +00:00
Gabor Greif
dba3e15625 remove unneeded parens
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@107881 91177308-0d34-0410-b5e6-96231b3b80d8
2010-07-08 16:52:57 +00:00
Jim Grosbach
ed903d746d Clean up scavengeRegister() a bit to prefer available regs, which allows
the simplification of frame index register scavenging to not have to check
for available registers directly and instead just let scavengeRegister()
handle it.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@107880 91177308-0d34-0410-b5e6-96231b3b80d8
2010-07-08 16:49:26 +00:00
Jakob Stoklund Olesen
0bc25f4040 Convert EXTRACT_SUBREG to COPY when emitting machine instrs.
EXTRACT_SUBREG no longer appears as a machine instruction. Use COPY instead.

Add isCopy() checks in many places using isMoveInstr() and isExtractSubreg().
The isMoveInstr hook will be removed later.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@107879 91177308-0d34-0410-b5e6-96231b3b80d8
2010-07-08 16:40:22 +00:00
Jakob Stoklund Olesen
5c00e07795 Remove references to INSERT_SUBREG after de-SSA.
Fix X86InstrInfo::convertToThreeAddressWithLEA to generate COPY instead of
INSERT_SUBREG.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@107878 91177308-0d34-0410-b5e6-96231b3b80d8
2010-07-08 16:40:15 +00:00
Duncan Sands
2dac4c1b51 Use std::vector rather than SmallVector here because SmallVector
causes some versions of gcc to crash when building LLVM.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@107869 91177308-0d34-0410-b5e6-96231b3b80d8
2010-07-08 13:06:08 +00:00
Benjamin Kramer
cde51108de Merge the duplicated iabs optimization in DAGCombiner and let it detected a few more idioms.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@107868 91177308-0d34-0410-b5e6-96231b3b80d8
2010-07-08 12:09:56 +00:00
Duncan Sands
a0994b1a13 Do not use std::stack because it causes obscure failures when
compiled with MSVC 2010 (PR7367).  Instead use a SmallVector.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@107867 91177308-0d34-0410-b5e6-96231b3b80d8
2010-07-08 11:54:27 +00:00
Benjamin Kramer
1db071f0da Teach instcombine to transform
(X >s -1) ? C1 : C2 and (X <s  0) ? C2 : C1
into ((X >>s 31) & (C2 - C1)) + C1, avoiding the conditional.

This optimization could be extended to take non-const C1 and C2 but we better
stay conservative to avoid code size bloat for now.

for
int sel(int n) {
     return n >= 0 ? 60 : 100;
}

we now generate
  sarl  $31, %edi
  andl  $40, %edi
  leal  60(%rdi), %eax

instead of
  testl %edi, %edi
  movl  $60, %ecx
  movl  $100, %eax
  cmovnsl %ecx, %eax


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@107866 91177308-0d34-0410-b5e6-96231b3b80d8
2010-07-08 11:39:10 +00:00
Duncan Sands
67f8a7bc26 Tweak some docs now that the default build is called Debug+Asserts.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@107862 91177308-0d34-0410-b5e6-96231b3b80d8
2010-07-08 08:27:18 +00:00
Eric Christopher
fb31ccb68c A slight reworking of the custom patterns for x86-64 tpoff codegen and
correct the testcase for valid assembly.

Needs more tests.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@107860 91177308-0d34-0410-b5e6-96231b3b80d8
2010-07-08 07:36:46 +00:00
Evan Cheng
4ff7ab612c r107852 is only safe with -enable-unsafe-fp-math to account for +0.0 == -0.0.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@107856 91177308-0d34-0410-b5e6-96231b3b80d8
2010-07-08 06:01:49 +00:00
Jakob Stoklund Olesen
3651d92d91 Add TargetInstrInfo::copyPhysReg hook and use it from LowerSubregs.
This target hook is intended to replace copyRegToReg entirely, but for now it
calls copyRegToReg.

Any remaining calls to copyRegToReg wil be replaced by COPY instructions.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@107854 91177308-0d34-0410-b5e6-96231b3b80d8
2010-07-08 05:01:41 +00:00
Evan Cheng
515fe3a588 Optimize some vfp comparisons to integer ones. This patch implements the simplest case when the following conditions are met:
1. The arguments are f32.
2. The arguments are loads and they have no uses other than the comparison.
3. The comparison code is EQ or NE.

e.g.
        vldr.32 s0, [r1]
        vldr.32 s1, [r0]
        vcmpe.f32       s1, s0
        vmrs    apsr_nzcv, fpscr
	beq     LBB0_2
=>
        ldr     r1, [r1]
        ldr     r0, [r0]
        cmp     r0, r1
        beq     LBB0_2

More complicated cases will be implemented in subsequent patches.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@107852 91177308-0d34-0410-b5e6-96231b3b80d8
2010-07-08 02:08:50 +00:00
Dale Johannesen
7835f1fcdb Changes to ARM tail calls, mostly cosmetic.
Add explicit testcases for tail calls within the same module.
Duplicate some code to humor those who think .w doesn't apply on ARM.
Leave this disabled on Thumb1, and add some comments explaining why it's hard
and won't gain much.



git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@107851 91177308-0d34-0410-b5e6-96231b3b80d8
2010-07-08 01:18:23 +00:00
Dan Gohman
f595141525 Revert 107840 107839 107813 107804 107800 107797 107791.
Debug info intrinsics win for now.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@107850 91177308-0d34-0410-b5e6-96231b3b80d8
2010-07-08 01:00:56 +00:00
Jim Grosbach
d9642faf7c When processing frame index virtual registers, consider all available registers
(if there are any) and use the one which remains available for the longest
rather than just using the first one. This should help enable better re-use
of the loaded frame index values. rdar://7318760



git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@107847 91177308-0d34-0410-b5e6-96231b3b80d8
2010-07-08 00:38:54 +00:00
Chris Lattner
0238f8c430 Fix the second half of PR7437: scalarrepl wasn't preserving
address spaces when SRoA'ing memcpy's.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@107846 91177308-0d34-0410-b5e6-96231b3b80d8
2010-07-08 00:27:05 +00:00
Dan Gohman
49dcb0f9ec Don't forward-declare registers for static allocas, which we'll
prefer to materialize as local constants. This fixes the clang
bootstrap abort.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@107840 91177308-0d34-0410-b5e6-96231b3b80d8
2010-07-07 23:52:58 +00:00
Dan Gohman
61b7cea126 Fix -fast-isel-abort to check the right instruction.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@107839 91177308-0d34-0410-b5e6-96231b3b80d8
2010-07-07 23:47:25 +00:00
Chris Lattner
8fff12605e use PrintEscapedString to handle attribute section with escapes in it,
PR7399.  The asm parser already handles this.  This is of dubious 
utility (see the PR) but the asmprinter was clearly broken here.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@107834 91177308-0d34-0410-b5e6-96231b3b80d8
2010-07-07 23:16:37 +00:00
Jakob Stoklund Olesen
5febd075df fix copies to/from GR8_ABCD_H even more
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@107832 91177308-0d34-0410-b5e6-96231b3b80d8
2010-07-07 23:04:56 +00:00
Jim Grosbach
03e2d44722 grammar
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@107831 91177308-0d34-0410-b5e6-96231b3b80d8
2010-07-07 22:53:35 +00:00
Jim Grosbach
c7937ae025 Handle cases where the post-RA scheduler may move instructions between the
address calculation instructions leading up to a jump table when we're trying
to convert them into a TB[H] instruction in Thumb2. This realistically
shouldn't happen much, if at all, for well formed inputs, but it's more correct
to handle it. rdar://7387682



git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@107830 91177308-0d34-0410-b5e6-96231b3b80d8
2010-07-07 22:51:22 +00:00
Chris Lattner
da3051a17f finish up support for callw: PR7195
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@107826 91177308-0d34-0410-b5e6-96231b3b80d8
2010-07-07 22:35:13 +00:00
Chris Lattner
9fc05227a2 Implement the major chunk of PR7195: support for 'callw'
in the integrated assembler.  Still some discussion to be
done.



git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@107825 91177308-0d34-0410-b5e6-96231b3b80d8
2010-07-07 22:27:31 +00:00
Bruno Cardoso Lopes
cc69e13a36 Add more assembly opcodes for SSE compare instructions
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@107823 91177308-0d34-0410-b5e6-96231b3b80d8
2010-07-07 22:24:03 +00:00
Devang Patel
8aa61477e3 One MDNode may be used to create regular DIE as well as abstract DIE.
Keep track of abstract subprogram DIEs. 


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@107822 91177308-0d34-0410-b5e6-96231b3b80d8
2010-07-07 22:20:57 +00:00
Evan Cheng
bcc8017c73 Move getExtLoad() and (some) getLoad() DebugLoc argument after EVT argument for consistency sake.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@107820 91177308-0d34-0410-b5e6-96231b3b80d8
2010-07-07 22:15:37 +00:00
Devang Patel
03753fc734 Print undefined/unknown debug value as "undef".
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@107818 91177308-0d34-0410-b5e6-96231b3b80d8
2010-07-07 21:52:21 +00:00
Dan Gohman
5c480432b5 Not all custom inserters create new basic blocks. If the inserter
didn't create a new block, don't reset the insert position.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@107813 91177308-0d34-0410-b5e6-96231b3b80d8
2010-07-07 21:18:22 +00:00
Jim Grosbach
26b8ef53ff grammar and trailing whitespace
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@107811 91177308-0d34-0410-b5e6-96231b3b80d8
2010-07-07 21:06:51 +00:00
Devang Patel
869aa463c8 Rename couple of maps.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@107810 91177308-0d34-0410-b5e6-96231b3b80d8
2010-07-07 20:49:57 +00:00
Jakob Stoklund Olesen
f2e4afd96c Allow copies between GR8_ABCD_L and GR8_ABCD_H.
This fixes PR7540.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@107809 91177308-0d34-0410-b5e6-96231b3b80d8
2010-07-07 20:33:27 +00:00
Reid Kleckner
894728211d Update the docs for debugging JITed code with GDB.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@107808 91177308-0d34-0410-b5e6-96231b3b80d8
2010-07-07 20:16:45 +00:00
Devang Patel
6140962aba 80 cols.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@107807 91177308-0d34-0410-b5e6-96231b3b80d8
2010-07-07 20:12:52 +00:00
Dan Gohman
4df83ed159 Implement bottom-up fast-isel. This has the advantage of not requiring
a separate DCE pass over MachineInstrs.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@107804 91177308-0d34-0410-b5e6-96231b3b80d8
2010-07-07 19:20:32 +00:00
Dan Gohman
f423a69839 Add X86FastISel support for return statements. This entails refactoring
a bunch of stuff, to allow the target-independent calling convention
logic to be employed.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@107800 91177308-0d34-0410-b5e6-96231b3b80d8
2010-07-07 18:32:53 +00:00
Bruno Cardoso Lopes
ced9ec9bac Add AVX AES instructions
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@107798 91177308-0d34-0410-b5e6-96231b3b80d8
2010-07-07 18:24:20 +00:00
Dan Gohman
5fc3da0665 Update the insert position after scheduling, which may change the
position when emitting multiple blocks when executing a custom
inserter.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@107797 91177308-0d34-0410-b5e6-96231b3b80d8
2010-07-07 18:22:13 +00:00
Devang Patel
cc87bfb59b Update comment.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@107796 91177308-0d34-0410-b5e6-96231b3b80d8
2010-07-07 18:18:18 +00:00
Dan Gohman
643fffe429 Fix debugging strings.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@107795 91177308-0d34-0410-b5e6-96231b3b80d8
2010-07-07 17:28:45 +00:00
Duncan Sands
2b48c33936 Issue the warning about being slow whenever optimization is disabled,
and not just for Debug+Asserts builds.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@107792 91177308-0d34-0410-b5e6-96231b3b80d8
2010-07-07 16:48:16 +00:00
Dan Gohman
eabaed26c3 Give FunctionLoweringInfo an MBB member, avoiding the need to pass it
around everywhere, and also give it an InsertPt member, to enable isel
to operate at an arbitrary position within a block, rather than just
appending to a block.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@107791 91177308-0d34-0410-b5e6-96231b3b80d8
2010-07-07 16:47:08 +00:00
Dan Gohman
a4160c3434 Simplify FastISel's constructor by giving it a FunctionLoweringInfo
instance, rather than pointers to all of FunctionLoweringInfo's
members.

This eliminates an NDEBUG ABI sensitivity.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@107789 91177308-0d34-0410-b5e6-96231b3b80d8
2010-07-07 16:29:44 +00:00
Dan Gohman
4c3fd9f92f Move FunctionLoweringInfo.h out into include/llvm/CodeGen. This will
allow target-specific fast-isel code to make use of it directly.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@107787 91177308-0d34-0410-b5e6-96231b3b80d8
2010-07-07 16:01:37 +00:00
Dan Gohman
c9403659a9 Split the SDValue out of OutputArg so that SelectionDAG-independent
code can do calling-convention queries. This obviates OutputArgReg.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@107786 91177308-0d34-0410-b5e6-96231b3b80d8
2010-07-07 15:54:55 +00:00
Chris Lattner
29269d03af add some triple for minix, patch by Kees van Reeuwijk from PR7582
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@107785 91177308-0d34-0410-b5e6-96231b3b80d8
2010-07-07 15:52:27 +00:00