Commit Graph

10280 Commits

Author SHA1 Message Date
Evan Cheng
6501153fc0 ARM isLegalAddressImmediate should check if type is a simple type now that optimizer can create values of funky scalar types.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@66429 91177308-0d34-0410-b5e6-96231b3b80d8
2009-03-09 19:15:00 +00:00
Chris Lattner
087fcf3e89 do not export all the X86FastISel symbols, ever.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@66382 91177308-0d34-0410-b5e6-96231b3b80d8
2009-03-08 18:44:31 +00:00
Evan Cheng
4b1747430a Recognize triplets starting with armv5-, armv6- etc. And set the ARM arch version accordingly.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@66365 91177308-0d34-0410-b5e6-96231b3b80d8
2009-03-08 04:02:49 +00:00
Chris Lattner
ff9dcee534 add a note.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@66360 91177308-0d34-0410-b5e6-96231b3b80d8
2009-03-08 03:04:26 +00:00
Chris Lattner
b34487dcba add a note.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@66359 91177308-0d34-0410-b5e6-96231b3b80d8
2009-03-08 01:54:43 +00:00
Duncan Sands
667d4b8de6 Introduce new linkage types linkonce_odr, weak_odr, common_odr
and extern_weak_odr.  These are the same as the non-odr versions,
except that they indicate that the global will only be overridden
by an *equivalent* global.  In C, a function with weak linkage can
be overridden by a function which behaves completely differently.
This means that IP passes have to skip weak functions, since any
deductions made from the function definition might be wrong, since
the definition could be replaced by something completely different
at link time.   This is not allowed in C++, thanks to the ODR
(One-Definition-Rule): if a function is replaced by another at
link-time, then the new function must be the same as the original
function.  If a language knows that a function or other global can
only be overridden by an equivalent global, it can give it the
weak_odr linkage type, and the optimizers will understand that it
is alright to make deductions based on the function body.  The
code generators on the other hand map weak and weak_odr linkage
to the same thing.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@66339 91177308-0d34-0410-b5e6-96231b3b80d8
2009-03-07 15:45:40 +00:00
Dan Gohman
3112581441 Arithmetic instructions don't set EFLAGS bits OF and CF bits
the same say the "test" instruction does in overflow cases,
so eliminating the test is only safe when those bits aren't
needed, as is the case for COND_E and COND_NE, or if it
can be proven that no overflow will occur. For now, just
restrict the optimization to COND_E and COND_NE and don't
do any overflow analysis.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@66318 91177308-0d34-0410-b5e6-96231b3b80d8
2009-03-07 01:58:32 +00:00
Dan Gohman
1f4af262d5 Don't use plain INC32 and DEC32 on x86-64; it needs
INC64_32r and INC64_16r, because these instructions are encoded
differently on x86-64. This fixes JIT regressions on x86-64 in
kimwitu++ and others.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@66207 91177308-0d34-0410-b5e6-96231b3b80d8
2009-03-05 21:32:23 +00:00
Dan Gohman
51bb47480e When creating X86ISD::INC and X86ISD::DEC nodes, only add one operand.
The extra operand didn't appear to cause any trouble, but it was
erroneous regardless.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@66206 91177308-0d34-0410-b5e6-96231b3b80d8
2009-03-05 21:29:28 +00:00
Dan Gohman
4bfcf2a2a6 Fix the "test" optimization to recognize "dec" as an add of
negative one, as subtracts of immediates are canonicalized
to adds.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@66180 91177308-0d34-0410-b5e6-96231b3b80d8
2009-03-05 19:32:48 +00:00
Dan Gohman
076aee32e8 Re-apply 66008, now that the unfoldMemoryOperand bug is fixed.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@66058 91177308-0d34-0410-b5e6-96231b3b80d8
2009-03-04 19:44:21 +00:00
Dan Gohman
fc53fc657e Correct this comment.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@66057 91177308-0d34-0410-b5e6-96231b3b80d8
2009-03-04 19:24:25 +00:00
Dan Gohman
b37a8206b6 When using MachineInstr operand indices on SDNodes, the number
of MachineInstr def operands must be subtracted out. This bug
was uncovered by the recent x86 EFLAGS optimization. Before
that, the only instructions that ever needed unfolding were
things like CMP32rm, where NumDefs is zero.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@66056 91177308-0d34-0410-b5e6-96231b3b80d8
2009-03-04 19:23:38 +00:00
Evan Cheng
ae3f2b6c77 Fix PR3666: isel calls to constant addresses.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@66024 91177308-0d34-0410-b5e6-96231b3b80d8
2009-03-04 06:48:53 +00:00
Dan Gohman
29582d1223 Revert r66004 for now; it's causing a variety of test failures.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@66008 91177308-0d34-0410-b5e6-96231b3b80d8
2009-03-04 03:54:19 +00:00
Dan Gohman
12bbc52aa7 Teach the x86 backend to eliminate "test" instructions by using the EFLAGS
result from add, sub, inc, and dec instructions in simple cases.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@66004 91177308-0d34-0410-b5e6-96231b3b80d8
2009-03-04 02:33:24 +00:00
Evan Cheng
599a6a88ce Fix PR3701. 1. X86 target renamed eflags register to flags. This matches what llvm-gcc generates so codegen knows flags register is being clobbered by inline asm. 2. BURR scheduler should also check if inline asm nodes can clobber "live" physical registers. Previously it was only checking target nodes with implicit defs.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@65996 91177308-0d34-0410-b5e6-96231b3b80d8
2009-03-04 01:41:49 +00:00
Dan Gohman
09a2609e20 Add '(implicit EFLAGS)' for AND, OR, XOR, NEG, INC, and DEC
instructions. These aren't used yet.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@65965 91177308-0d34-0410-b5e6-96231b3b80d8
2009-03-03 19:53:46 +00:00
Bob Wilson
f2950b0051 Use early exit to reduce indentation. No functional change.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@65962 91177308-0d34-0410-b5e6-96231b3b80d8
2009-03-03 19:26:27 +00:00
Dan Gohman
0f8b53f19d Fix a bunch of Doxygen syntax issues. Escape special characters,
and put @file directives on their own comment line.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@65920 91177308-0d34-0410-b5e6-96231b3b80d8
2009-03-03 02:55:14 +00:00
Bob Wilson
24e338e8a3 Generalize BuildVectorSDNode::isConstantSplat to use APInts and handle
arbitrary vector sizes.  Add an optional MinSplatBits parameter to specify
a minimum for the splat element size.  Update the PPC target to use the
revised interface.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@65899 91177308-0d34-0410-b5e6-96231b3b80d8
2009-03-02 23:24:16 +00:00
Bob Wilson
a27ea9e89f Combine PPC's GetConstantBuildVectorBits and isConstantSplat functions to a new
method in a BuildVectorSDNode "pseudo-class".


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@65747 91177308-0d34-0410-b5e6-96231b3b80d8
2009-03-01 01:13:55 +00:00
Mon P Wang
9feb5dd568 Added another darwin subtarget
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@65662 91177308-0d34-0410-b5e6-96231b3b80d8
2009-02-28 00:25:30 +00:00
Rafael Espindola
9a58023c6c Refactor TLS code and add some tests. The tests and expected results are:
pic |  declaration | linkage  | visibility |

!pic |  declaration | external | default    | tls1.ll     tls2.ll     | local exec
 pic |  declaration | external | default    | tls1-pic.ll tls2-pic.ll | general dynamic
!pic | !declaration | external | default    | tls3.ll     tls4.ll     | initial exec
 pic | !declaration | external | default    | tls3-pic.ll tls4-pic.ll | general dynamic

!pic |  declaration | external | hidden     | tls7.ll     tls8.ll     | local exec
 pic |  declaration | external | hidden     | X                       | local dynamic
!pic | !declaration | external | hidden     | tls9.ll     tls10.ll    | local exec
 pic | !declaration | external | hidden     | X                       | local dynamic

!pic |  declaration | internal | default    | tls5.ll     tls6.ll     | local exec
 pic |  declaration | internal | default    | X                       | local dynamic

The ones marked with an X have not been implemented since local dynamic is not implemented.




git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@65632 91177308-0d34-0410-b5e6-96231b3b80d8
2009-02-27 13:37:18 +00:00
Dale Johannesen
ded2b20e7e Alignment values for i64 and f64 on ppc64 were wrong,
possibly for the reason suggested by the comment.
No wonder it didn't work very well.  This unblocks
bootstrap with assertions on ppc.



git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@65601 91177308-0d34-0410-b5e6-96231b3b80d8
2009-02-27 00:56:35 +00:00
Evan Cheng
236aa8a503 ADDS{D|S}rr_Int and MULS{D|S}rr_Int are not commutable. The users of these intrinsics expect the high bits will not be modified.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@65499 91177308-0d34-0410-b5e6-96231b3b80d8
2009-02-26 03:12:02 +00:00
Evan Cheng
a87008d90b Revert BuildVectorSDNode related patches: 65426, 65427, and 65296.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@65482 91177308-0d34-0410-b5e6-96231b3b80d8
2009-02-25 22:49:59 +00:00
Nick Lewycky
20babb112c Add a totally synthetic situation I came up with while looking at a bug in
related code.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@65437 91177308-0d34-0410-b5e6-96231b3b80d8
2009-02-25 06:52:48 +00:00
Scott Michel
df38043a46 Remove all "cached" data from BuildVectorSDNode, preferring to retrieve
results via reference parameters.

This patch also appears to fix Evan's reported problem supplied as a
reduced bugpoint test case.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@65426 91177308-0d34-0410-b5e6-96231b3b80d8
2009-02-25 03:12:50 +00:00
Bill Wendling
57f0db833d Overhaul my earlier submission due to feedback. It's a large patch, but most of
them are generic changes.

- Use the "fast" flag that's already being passed into the asm printers instead
  of shoving it into the DwarfWriter.

- Instead of calling "MI->getParent()->getParent()" for every MI, set the
  machine function when calling "runOnMachineFunction" in the asm printers.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@65379 91177308-0d34-0410-b5e6-96231b3b80d8
2009-02-24 08:30:20 +00:00
Dan Gohman
e9865945ad Fast-isel can't do TLS yet, so it should fall back to SDISel
if it sees TLS addresses.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@65341 91177308-0d34-0410-b5e6-96231b3b80d8
2009-02-23 22:03:08 +00:00
Evan Cheng
242b38bae5 Only v1i16 (i.e. _m64) is returned via RAX / RDX.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@65313 91177308-0d34-0410-b5e6-96231b3b80d8
2009-02-23 09:03:22 +00:00
Nate Begeman
b9a47b824f Generate better code for v8i16 shuffles on SSE2
Generate better code for v16i8 shuffles on SSE2 (avoids stack)
Generate pshufb for v8i16 and v16i8 shuffles on SSSE3 where it is fewer uops.
Document the shuffle matching logic and add some FIXMEs for later further
  cleanups.
New tests that test the above.

Examples:

New:
_shuf2:
	pextrw	$7, %xmm0, %eax
	punpcklqdq	%xmm1, %xmm0
	pshuflw	$128, %xmm0, %xmm0
	pinsrw	$2, %eax, %xmm0

Old:
_shuf2:
	pextrw	$2, %xmm0, %eax
	pextrw	$7, %xmm0, %ecx
	pinsrw	$2, %ecx, %xmm0
	pinsrw	$3, %eax, %xmm0
	movd	%xmm1, %eax
	pinsrw	$4, %eax, %xmm0
	ret

=========

New:
_shuf4:
	punpcklqdq	%xmm1, %xmm0
	pshufb	LCPI1_0, %xmm0

Old:
_shuf4:
	pextrw	$3, %xmm0, %eax
	movsd	%xmm1, %xmm0
	pextrw	$3, %xmm1, %ecx
	pinsrw	$4, %ecx, %xmm0
	pinsrw	$5, %eax, %xmm0

========

New:
_shuf1:
	pushl	%ebx
	pushl	%edi
	pushl	%esi
	pextrw	$1, %xmm0, %eax
	rolw	$8, %ax
	movd	%xmm0, %ecx
	rolw	$8, %cx
	pextrw	$5, %xmm0, %edx
	pextrw	$4, %xmm0, %esi
	pextrw	$3, %xmm0, %edi
	pextrw	$2, %xmm0, %ebx
	movaps	%xmm0, %xmm1
	pinsrw	$0, %ecx, %xmm1
	pinsrw	$1, %eax, %xmm1
	rolw	$8, %bx
	pinsrw	$2, %ebx, %xmm1
	rolw	$8, %di
	pinsrw	$3, %edi, %xmm1
	rolw	$8, %si
	pinsrw	$4, %esi, %xmm1
	rolw	$8, %dx
	pinsrw	$5, %edx, %xmm1
	pextrw	$7, %xmm0, %eax
	rolw	$8, %ax
	movaps	%xmm1, %xmm0
	pinsrw	$7, %eax, %xmm0
	popl	%esi
	popl	%edi
	popl	%ebx
	ret

Old:
_shuf1:
	subl	$252, %esp
	movaps	%xmm0, (%esp)
	movaps	%xmm0, 16(%esp)
	movaps	%xmm0, 32(%esp)
	movaps	%xmm0, 48(%esp)
	movaps	%xmm0, 64(%esp)
	movaps	%xmm0, 80(%esp)
	movaps	%xmm0, 96(%esp)
	movaps	%xmm0, 224(%esp)
	movaps	%xmm0, 208(%esp)
	movaps	%xmm0, 192(%esp)
	movaps	%xmm0, 176(%esp)
	movaps	%xmm0, 160(%esp)
	movaps	%xmm0, 144(%esp)
	movaps	%xmm0, 128(%esp)
	movaps	%xmm0, 112(%esp)
	movzbl	14(%esp), %eax
	movd	%eax, %xmm1
	movzbl	22(%esp), %eax
	movd	%eax, %xmm2
	punpcklbw	%xmm1, %xmm2
	movzbl	42(%esp), %eax
	movd	%eax, %xmm1
	movzbl	50(%esp), %eax
	movd	%eax, %xmm3
	punpcklbw	%xmm1, %xmm3
	punpcklbw	%xmm2, %xmm3
	movzbl	77(%esp), %eax
	movd	%eax, %xmm1
	movzbl	84(%esp), %eax
	movd	%eax, %xmm2
	punpcklbw	%xmm1, %xmm2
	movzbl	104(%esp), %eax
	movd	%eax, %xmm1
	punpcklbw	%xmm1, %xmm0
	punpcklbw	%xmm2, %xmm0
	movaps	%xmm0, %xmm1
	punpcklbw	%xmm3, %xmm1
	movzbl	127(%esp), %eax
	movd	%eax, %xmm0
	movzbl	135(%esp), %eax
	movd	%eax, %xmm2
	punpcklbw	%xmm0, %xmm2
	movzbl	155(%esp), %eax
	movd	%eax, %xmm0
	movzbl	163(%esp), %eax
	movd	%eax, %xmm3
	punpcklbw	%xmm0, %xmm3
	punpcklbw	%xmm2, %xmm3
	movzbl	188(%esp), %eax
	movd	%eax, %xmm0
	movzbl	197(%esp), %eax
	movd	%eax, %xmm2
	punpcklbw	%xmm0, %xmm2
	movzbl	217(%esp), %eax
	movd	%eax, %xmm4
	movzbl	225(%esp), %eax
	movd	%eax, %xmm0
	punpcklbw	%xmm4, %xmm0
	punpcklbw	%xmm2, %xmm0
	punpcklbw	%xmm3, %xmm0
	punpcklbw	%xmm1, %xmm0
	addl	$252, %esp
	ret



git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@65311 91177308-0d34-0410-b5e6-96231b3b80d8
2009-02-23 08:49:38 +00:00
Bill Wendling
ef4cfc749a Propagate debug loc info through prologue/epilogue.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@65298 91177308-0d34-0410-b5e6-96231b3b80d8
2009-02-23 00:42:30 +00:00
Scott Michel
4214a5531c Introduce the BuildVectorSDNode class that encapsulates the ISD::BUILD_VECTOR
instruction. The class also consolidates the code for detecting constant
splats that's shared across PowerPC and the CellSPU backends (and might be
useful for other backends.) Also introduces SelectionDAG::getBUID_VECTOR() for
generating new BUILD_VECTOR nodes.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@65296 91177308-0d34-0410-b5e6-96231b3b80d8
2009-02-22 23:36:09 +00:00
Evan Cheng
779aee1fea Add a note.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@65275 91177308-0d34-0410-b5e6-96231b3b80d8
2009-02-22 08:13:45 +00:00
Evan Cheng
6140a8b057 Be bug compatible with gcc by returning MMX values in RAX.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@65274 91177308-0d34-0410-b5e6-96231b3b80d8
2009-02-22 08:05:12 +00:00
Evan Cheng
c94ebef1b1 Do not consider MMX_MOVD64rr a move instructions. The source register is in GR32, the destination is VR64. They are not compatible.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@65273 91177308-0d34-0410-b5e6-96231b3b80d8
2009-02-22 08:04:23 +00:00
Anton Korobeynikov
b5bd026a75 Drop bunch of half-working stuff in the ext_weak linkage support.
Now we're using one gross, but quite robust hack :) (previous ones
did not work, for example, when ext_weak symbol was used deep inside
constant expression in the initializer).

The proper fix of this problem will require some quite huge asmprinter
changes and that's why was postponed. This fixes PR3629 by the way :)

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@65230 91177308-0d34-0410-b5e6-96231b3b80d8
2009-02-21 11:53:32 +00:00
Bill Wendling
5a45d76c25 Make sure this doesn't access .end() too.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@65213 91177308-0d34-0410-b5e6-96231b3b80d8
2009-02-21 01:11:36 +00:00
Bill Wendling
8aa374b629 Make sure we don't dereference the .end() of the container.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@65211 91177308-0d34-0410-b5e6-96231b3b80d8
2009-02-21 01:07:26 +00:00
Bill Wendling
3d2445f5d9 Propagate more debug loc infos. This also includes some code cleaning.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@65207 91177308-0d34-0410-b5e6-96231b3b80d8
2009-02-21 00:43:56 +00:00
Bill Wendling
2625f9b2e4 We need to propagate the debug location information even when dealing with the
prologue/epilogue.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@65206 91177308-0d34-0410-b5e6-96231b3b80d8
2009-02-21 00:32:08 +00:00
Evan Cheng
79fb3b434f Support return of MMX values in 64-bit mode.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@65152 91177308-0d34-0410-b5e6-96231b3b80d8
2009-02-20 20:43:02 +00:00
Torok Edwin
474479fce7 add note about sin
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@65137 91177308-0d34-0410-b5e6-96231b3b80d8
2009-02-20 18:42:06 +00:00
Bill Wendling
cb819f13d7 Put code that generates debug labels into TableGen so that it can be used by
everyone.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@64978 91177308-0d34-0410-b5e6-96231b3b80d8
2009-02-18 23:12:06 +00:00
Dan Gohman
38deef9ce5 Add explicit keywords.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@64915 91177308-0d34-0410-b5e6-96231b3b80d8
2009-02-18 16:37:45 +00:00
Nate Begeman
d6b7a242d3 Add support to the JIT for true non-lazy operation. When a call to a function
that has not been JIT'd yet, the callee is put on a list of pending functions
to JIT.  The call is directed through a stub, which is updated with the address
of the function after it has been JIT'd.  A new interface for allocating and
updating empty stubs is provided.

Add support for removing the ModuleProvider the JIT was created with, which
would otherwise invalidate the JIT's PassManager, which is initialized with the
ModuleProvider's Module.

Add support under a new ExecutionEngine flag for emitting the infomration 
necessary to update Function and GlobalVariable stubs after JITing them, by
recording the address of the stub and the name of the GlobalValue.  This allows
code to be copied from one address space to another, where libraries may live
at different virtual addresses, and have the stubs updated with their new
correct target addresses.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@64906 91177308-0d34-0410-b5e6-96231b3b80d8
2009-02-18 08:31:02 +00:00
Dan Gohman
97357614b5 Factor out the code to add a MachineOperand to a MachineInstrBuilder.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@64891 91177308-0d34-0410-b5e6-96231b3b80d8
2009-02-18 05:45:50 +00:00
Evan Cheng
caa0c2cadd GV with null value initializer shouldn't go to BSS if it's meant for a mergeable strings section. Currently it only checks for Darwin. Someone else please check if it should apply to other targets as well.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@64877 91177308-0d34-0410-b5e6-96231b3b80d8
2009-02-18 02:19:52 +00:00