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10628 Commits

Author SHA1 Message Date
Owen Anderson 6ebbd92380 Use LVI to eliminate conditional branches where we've tested a related condition previously. Update tests for this change. 
This fixes PR5652.

llvm-svn: 112270
 2010-08-27 17:12:29 +00:00
Daniel Dunbar 1844a71e66 X86: Fix an encoding issue with LOCK_ADD64mr, which could lead to very hard to find miscompiles with the integrated assembler. 
llvm-svn: 112250
 2010-08-27 01:30:14 +00:00
Chris Lattner c188b96bbe filecheckize 
llvm-svn: 112235
 2010-08-26 22:23:39 +00:00
Chris Lattner 387d6bcdcb rename test. 
llvm-svn: 112234
 2010-08-26 22:20:47 +00:00
Chris Lattner bfd2228182 optimize "integer extraction out of the middle of a vector" as produced 
by SRoA.  This is part of rdar://7892780, but needs another xform to
expose this.

llvm-svn: 112232
 2010-08-26 22:14:59 +00:00
Chris Lattner d4ebd6df5a optimize bitcast(trunc(bitcast(x))) where the result is a float and 'x' 
is a vector to be a vector element extraction.  This allows clang to
compile:

struct S { float A, B, C, D; };
float foo(struct S A) { return A.A + A.B+A.C+A.D; }

into:

_foo:                                   ## @foo
## BB#0:                                ## %entry
	movd	%xmm0, %rax
	shrq	$32, %rax
	movd	%eax, %xmm2
	addss	%xmm0, %xmm2
	movapd	%xmm1, %xmm3
	addss	%xmm2, %xmm3
	movd	%xmm1, %rax
	shrq	$32, %rax
	movd	%eax, %xmm0
	addss	%xmm3, %xmm0
	ret

instead of:

_foo:                                   ## @foo
## BB#0:                                ## %entry
	movd	%xmm0, %rax
	movd	%eax, %xmm0
	shrq	$32, %rax
	movd	%eax, %xmm2
	addss	%xmm0, %xmm2
	movd	%xmm1, %rax
	movd	%eax, %xmm1
	addss	%xmm2, %xmm1
	shrq	$32, %rax
	movd	%eax, %xmm0
	addss	%xmm1, %xmm0
	ret

... eliminating half of the horribleness.

llvm-svn: 112227
 2010-08-26 21:55:42 +00:00
Chris Lattner 3c19d3d5c3 filecheckize 
llvm-svn: 112225
 2010-08-26 21:51:41 +00:00
Chris Lattner 7717c616bd rename test 
llvm-svn: 112224
 2010-08-26 21:50:56 +00:00
Owen Anderson bd2ecc7e68 Make JumpThreading smart enough to properly thread StrSwitch when it's compiled with clang++. 
llvm-svn: 112198
 2010-08-26 17:40:24 +00:00
Dan Gohman ca26f79051 Reapply r112091 and r111922, support for metadata linking, with a 
fix: add a flag to MapValue and friends which indicates whether
any module-level mappings are being made. In the common case of
inlining, no module-level mappings are needed, so MapValue doesn't
need to examine non-function-local metadata, which can be very
expensive in the case of a large module with really deep metadata
(e.g. a large C++ program compiled with -g).

This flag is a little awkward; perhaps eventually it can be moved
into the ClonedCodeInfo class.

llvm-svn: 112190
 2010-08-26 15:41:53 +00:00
Chris Lattner af23e9a798 Add a hackaround for PR7993 which is causing failures on x86 builders that lack sse2. 
llvm-svn: 112175
 2010-08-26 06:57:07 +00:00
Chris Lattner 66afba7aa4 I think enough general codegen bugs are fixed to allow this to work 
on random hosts, lets see!

llvm-svn: 112172
 2010-08-26 05:52:42 +00:00
Chris Lattner eb2cc0ce0e implement SplitVecOp_CONCAT_VECTORS, fixing the included testcase with SSE1. 
llvm-svn: 112171
 2010-08-26 05:51:22 +00:00
Chris Lattner 825294b85f Make sure this forces the x86 targets 
llvm-svn: 112169
 2010-08-26 05:25:05 +00:00
Chris Lattner cc60609cb4 fix sse1 only codegen in x86-64 mode, which is something we 
apparently try to support.

llvm-svn: 112168
 2010-08-26 05:24:29 +00:00
Daniel Dunbar 95fe13c720 Revert r112091, "Remap metadata attached to instructions when remapping 
individual ...", which depends on r111922, which I am reverting.

llvm-svn: 112157
 2010-08-26 03:48:08 +00:00
Jim Grosbach 08da771ec3 Enable pre-RA virtual frame base register allocation. rdar://8277890 
llvm-svn: 112127
 2010-08-26 00:58:06 +00:00
Bob Wilson 4629f423f8 Revert svn 107892 (with changes to work with trunk). It caused a crash if 
a VLD result was not used (Radar 8355607).  It should also fix pr7988, but
I haven't verified that yet.

llvm-svn: 112118
 2010-08-26 00:13:36 +00:00
Chris Lattner c7fb446a9d temporarily disable this, which started failing on the llvm-i686-linux 
builder.  I will investigate tonight.

llvm-svn: 112113
 2010-08-25 23:43:14 +00:00
Chris Lattner 75ff053497 Change handling of illegal vector types to widen when possible instead of 
expanding: e.g. <2 x float> -> <4 x float> instead of -> 2 floats.  This
affects two places in the code: handling cross block values and handling
function return and arguments.  Since vectors are already widened by 
legalizetypes, this gives us much better code and unblocks x86-64 abi
and SPU abi work.

For example, this (which is a silly example of a cross-block value):
define <4 x float> @test2(<4 x float> %A) nounwind {
 %B = shufflevector <4 x float> %A, <4 x float> undef, <2 x i32> <i32 0, i32 1>
 %C = fadd <2 x float> %B, %B
  br label %BB
BB:
 %D = fadd <2 x float> %C, %C
 %E = shufflevector <2 x float> %D, <2 x float> undef, <4 x i32> <i32 0, i32 1, i32 undef, i32 undef>
 ret <4 x float> %E
}

Now compiles into:

_test2:                                 ## @test2
## BB#0:
 addps %xmm0, %xmm0
 addps %xmm0, %xmm0
 ret

previously it compiled into:

_test2:                                 ## @test2
## BB#0:
 addps %xmm0, %xmm0
 pshufd $1, %xmm0, %xmm1
                                        ## kill: XMM0<def> XMM0<kill> XMM0<def>
 insertps $0, %xmm0, %xmm0
 insertps $16, %xmm1, %xmm0
 addps %xmm0, %xmm0
 ret

This implements rdar://8230384

llvm-svn: 112101
 2010-08-25 22:49:25 +00:00
Dan Gohman fd824487a3 Remap metadata attached to instructions when remapping individual 
instructions, not when remapping modules.

llvm-svn: 112091
 2010-08-25 21:36:50 +00:00
Daniel Dunbar 3d148ac089 X86: Fix misencode of RI64mi8. This fixes OpenSSL / x86_64-apple-darwin10 / clang -O3. 
llvm-svn: 112089
 2010-08-25 21:11:02 +00:00
Devang Patel 01262e129e DIGlobalVariable can be used to encode debug info for globals that are directly folded into a constant by FE. 
llvm-svn: 112072
 2010-08-25 18:52:02 +00:00
Daniel Dunbar a54a1b0edf ARM/Thumb2: Fix a misselect in getARMCmp, when attempting to adjust a signed 
comparison that would overflow.
 - The other under/overflow cases can't actually happen because the immediates
   which would trigger them are legal (so we don't enter this code), but
   adjusted the style to make it clear the transform is always valid.

llvm-svn: 112053
 2010-08-25 16:58:05 +00:00
Eric Christopher 6b1533a1a9 Add another basic test cribbed from the x86 fast-isel tests. 
llvm-svn: 112036
 2010-08-25 07:57:29 +00:00
Eric Christopher 37d547aee6 Run this on thumb and arm. 
llvm-svn: 112035
 2010-08-25 07:53:15 +00:00
Eric Christopher e58c03698e Make this testcase actually executed with fast-isel on arm. 
llvm-svn: 112033
 2010-08-25 07:47:00 +00:00
Bruno Cardoso Lopes 0bc919fa35 Convert test to use filecheck and make it more specific 
llvm-svn: 112016
 2010-08-25 01:47:16 +00:00
Owen Anderson 4afea9e3c6 In the default address space, any GEP off of null results in a trap value if you try to load it. Thus, 
any load in the default address space that completes implies that the base value that it GEP'd from
was not null.

llvm-svn: 112015
 2010-08-25 01:16:47 +00:00
Michael J. Spencer ccd28d0665 Fix COFF x86-64 relocations. PR7960. 
Multiple symbol reloc handling part of the patch by Cameron Esfahani.

llvm-svn: 111963
 2010-08-24 21:04:52 +00:00
Dan Gohman c1a8958f76 XFAIL this on mingw, following remove_arguments_test.ll. 
llvm-svn: 111962
 2010-08-24 20:54:50 +00:00
Dan Gohman b2f29edc30 Add a testcase for basic bugpointing in the presence of metadata. 
llvm-svn: 111955
 2010-08-24 20:23:51 +00:00
Daniel Dunbar 1c8d777c93 MC/X86: Tweak imul recognition, previous hack only applies for the imul form 
taking immediates.

llvm-svn: 111950
 2010-08-24 19:37:56 +00:00
Daniel Dunbar 09392785b4 MC/X86: Add custom hack for recognizing "imul $12, %eax" and friends. 
llvm-svn: 111947
 2010-08-24 19:24:18 +00:00
Daniel Dunbar 2476432639 MC/AsmParser: Change ParseExpression to use ParseIdentifier(), to support 
dollars in identifiers.

llvm-svn: 111946
 2010-08-24 19:13:42 +00:00
Daniel Dunbar 94b84a19b9 MC/X86: Warn on scale factors > 1 without index register, instead of erroring, 
for 'as' compatibility.

llvm-svn: 111945
 2010-08-24 19:13:38 +00:00
Daniel Dunbar 3b96ffdac1 MC/Parser: Accept leading dollar signs in identifiers. 
- Implemented by manually splicing the tokens. If this turns out to be
   problematically platform specific, a more elegant solution would be to
   implement some context dependent lexing support.

llvm-svn: 111934
 2010-08-24 18:12:12 +00:00
Dan Gohman c88fda477a Fix X86's isLegalAddressingMode to recognize that static addresses 
need not be RIP-relative in small mode.

llvm-svn: 111917
 2010-08-24 15:55:12 +00:00
Kalle Raiskila 7e25bc4145 Fix SPU BE to use all the available return registers. 
llc used to assert on the added testcase.

llvm-svn: 111911
 2010-08-24 11:50:48 +00:00
Dan Gohman c828c5465d Extend function-local metadata to be usable as attachments. 
llvm-svn: 111895
 2010-08-24 02:24:03 +00:00
Chris Lattner 02db8f6415 fix rdar://7997827 - Accept and ignore LL and ULL suffixes on integer literals. 
Also fix 0b010 syntax to actually work while we're at it :-)

llvm-svn: 111876
 2010-08-24 00:43:25 +00:00
Mikhail Glushenkov aaed5ea9b7 llvmc: Make syntax more consistent. 
CompilationGraph and LanguageMap definitions do not use special syntax anymore.

llvm-svn: 111862
 2010-08-23 23:21:23 +00:00
Chris Lattner 58bd73a5a7 Add a new llvm.x86.int intrinsic, allowing access to the 
x86 int and int3 instructions.  Patch by Peter Housel!

llvm-svn: 111831
 2010-08-23 19:39:25 +00:00
Chandler Carruth ebf42ac831 Try to escape the '$'s in these so they reach the underlying 'sh' invocation. 
I have no idea how lit did the right thing here, but other test runners don't.

llvm-svn: 111805
 2010-08-23 08:54:19 +00:00
Dan Gohman 42ef669d81 Fix x86 fast-isel's cmp+branch folding to avoid folding when the 
comparison is in a different basic block from the branch. In such
cases, the comparison's operands may not have initialized virtual
registers available.

llvm-svn: 111709
 2010-08-21 02:32:36 +00:00
Bob Wilson be745d8c00 Replace some NEON vmovl intrinsic that I missed earlier. 
llvm-svn: 111696
 2010-08-20 23:22:43 +00:00
Bill Wendling 578ee4070c Create the new linker type "linker_private_weak_def_auto". 
It's similar to "linker_private_weak", but it's known that the address of the
object is not taken. For instance, functions that had an inline definition, but
the compiler decided not to inline it. Note, unlike linker_private and
linker_private_weak, linker_private_weak_def_auto may have only default
visibility.  The symbols are removed by the linker from the final linked image
(executable or dynamic library).

llvm-svn: 111684
 2010-08-20 22:05:50 +00:00
Dale Johannesen 74c1f8ed7b Test should pass on non-Darwin x86. 
llvm-svn: 111678
 2010-08-20 21:18:55 +00:00
Dale Johannesen bdc237c2ca Don't run test on PPC darwin. 
llvm-svn: 111668
 2010-08-20 18:29:27 +00:00
Owen Anderson 84c29a096b Re-apply r111568 with a fix for the clang self-host. 
llvm-svn: 111665
 2010-08-20 18:24:43 +00:00