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24965 Commits

Author SHA1 Message Date
Dan Gohman 007a6bb9b9 Factor out the code for determining when symblic addresses 
require RIP-relative addressing and use it to fix a bug
in X86FastISel in x86-64 PIC mode, where it was trying to
use base/index registers with RIP-relative addresses. This
fixes a bunch of x86-64 testsuite failures.

llvm-svn: 56676
 2008-09-26 19:15:30 +00:00
Evan Cheng 994dd0bbec Avoid spilling EBP / RBP twice in the prologue. 
llvm-svn: 56675
 2008-09-26 19:14:21 +00:00
Owen Anderson a381313d98 We don't need to insert copies for implicit_def's. 
llvm-svn: 56674
 2008-09-26 18:50:46 +00:00
Evan Cheng 001ffdd36b X86 address displacement field must be interpreted as a 32-bit value. 
llvm-svn: 56665
 2008-09-26 16:58:16 +00:00
Oscar Fuentes cdc95498f5 CMake: Builds all targets. 
llvm-svn: 56641
 2008-09-26 04:40:32 +00:00
Dan Gohman 839105d254 Disable support for x86_f80 in X86FastISel. Supporting it would 
require more work.

llvm-svn: 56637
 2008-09-26 01:39:32 +00:00
Bill Wendling 374d7f2b16 If we have a function with an unreachable statement such that the ending debug 
information is in an unreachable block, then it's possible that the high/low pc
values won't be set for the dwarf information. E.g., this function:

void abort(void) __attribute__((__noreturn__));
void dead_beef(void) __attribute__ ((noreturn));

int *b;

void dead_beef(void) {
  *b=0xdeadbeef;
  abort();
}

has a call to "@llvm.dbg.region.end" only in the unreachable block:

define void @dead_beef() noreturn nounwind  {
entry:
	call void @llvm.dbg.func.start(...)
	call void @llvm.dbg.stoppoint(...)
...
	call void @abort( ) noreturn nounwind 
	unreachable

return:		; No predecessors!
	call void @llvm.dbg.stoppoint(...)
	call void @llvm.dbg.region.end(...)
	ret void
}

The dwarf information emitted is something like:

0x00000084:     TAG_subprogram [5]  
                 AT_name( "dead_beef" )
                 AT_external( 0x01 )
                 AT_prototyped( 0x01 )
                 AT_decl_file( 0x01 )
                 AT_decl_line( 0x08 )

Note that this is *not* the best fix for this problem, but a band-aid for an
gaping wound. This code needs to be changed when we revamp our debugging
information.

llvm-svn: 56628
 2008-09-26 00:28:12 +00:00
Evan Cheng 9dbe45c000 Prefer movlhps over punpcklqdq, etc. in more cases. 
llvm-svn: 56627
 2008-09-25 23:35:16 +00:00
Dan Gohman 0c1b884df1 Fix a bug in which address displacements were being added to the 
load from the stub, instead of the result of the load from the stub.

llvm-svn: 56626
 2008-09-25 23:34:02 +00:00
Bill Wendling 0c37421623 Make pointer parameter const for isUsedInBasicBlock. 
llvm-svn: 56625
 2008-09-25 22:42:01 +00:00
Devang Patel 4c758ea3e0 Large mechanical patch. 
s/ParamAttr/Attribute/g
s/PAList/AttrList/g
s/FnAttributeWithIndex/AttributeWithIndex/g
s/FnAttr/Attribute/g

This sets the stage 
- to implement function notes as function attributes and 
- to distinguish between function attributes and return value attributes.

This requires corresponding changes in llvm-gcc and clang.

llvm-svn: 56622
 2008-09-25 21:00:45 +00:00
Anton Korobeynikov 87001fd6fd Reapply 56585:56589 with proper fix for some gcc versions 
llvm-svn: 56621
 2008-09-25 21:00:33 +00:00
Evan Cheng 74c9ed91b0 With sse3 and when the source is a load or has multiple uses, favors movddup over shuffp*, pshufd, etc. Without sse3 or when the source is from a register, make use of movlhps 
llvm-svn: 56620
 2008-09-25 20:50:48 +00:00
Dale Johannesen c50ada2f56 Accept 'inreg' attribute on x86 functions as 
meaning sse_regparm (i.e. float/double values go
in XMM0 instead of ST0).  Update documentation
to reflect reality.

llvm-svn: 56619
 2008-09-25 20:47:45 +00:00
Dan Gohman bb9a211530 Avoid a spurious extra space character when printing empty structs. 
llvm-svn: 56616
 2008-09-25 17:37:20 +00:00
Dan Gohman 5e490a7567 Support for i1 XOR in FastISel. It is actually safe because 
i1 operands are assumed to already by zero-extended.

llvm-svn: 56615
 2008-09-25 17:22:52 +00:00
Dan Gohman 6975c36c43 Don't print fast-isel debug messages by default. Thanks Chris! 
llvm-svn: 56614
 2008-09-25 17:21:42 +00:00
Dan Gohman dd920bf3f0 Don't forget the newline in debug output. 
llvm-svn: 56613
 2008-09-25 17:17:27 +00:00
Dan Gohman 32a733e2c7 FastISel support for debug info. 
llvm-svn: 56610
 2008-09-25 17:05:24 +00:00
Richard Pennington 4b35e64504 bug 2812: Segmentation fault on a big emdiam processor. 
llvm-svn: 56609
 2008-09-25 16:15:10 +00:00
Dan Gohman 3691d507c4 PIC support in X86FastISel. 
llvm-svn: 56608
 2008-09-25 15:24:26 +00:00
Evan Cheng 84301390ae Temporarily backing out 56585:56589 to unbreak the build. 
llvm-svn: 56607
 2008-09-25 07:38:08 +00:00
Dan Gohman 3663f156f7 Fix a recent fast-isel coverage regression - don't bail out before 
giving the target a chance to materialize constants.

llvm-svn: 56605
 2008-09-25 01:28:51 +00:00
Dan Gohman b8e69f1755 Enable DeadMachineInstructionElim when Fast-ISel is enabled. 
llvm-svn: 56604
 2008-09-25 01:14:49 +00:00
Dan Gohman b873aa632c Add debug output to this pass. 
llvm-svn: 56602
 2008-09-25 01:06:50 +00:00
Evan Cheng 7b5a6afb44 pmovsxbq etc. requires sse4.1. 
llvm-svn: 56600
 2008-09-25 00:49:51 +00:00
Dan Gohman acb0554842 Refactor the code that adds standard LLVM codegen passes into 
a separate function, eliminating duplication between the
add-passes-for-file and add-passes-for-machine-code code.

llvm-svn: 56599
 2008-09-25 00:37:07 +00:00
Evan Cheng 2e7450716a <rdar://problem/6234798> Assertion failed: (!OpInfo.AssignedRegs.Regs.empty() && "Couldn't allocate input reg!") 
llvm-svn: 56597
 2008-09-25 00:14:04 +00:00
Dan Gohman 382e2ec6b7 Give LowerSubregs.cpp a top-level description. 
llvm-svn: 56596
 2008-09-24 23:44:12 +00:00
Evan Cheng f8ead16b50 Fix patterns for SSE4.1 move and sign extend instructions. Also add instructions which fold VZEXT_MOVL and VZEXT_LOAD. 
llvm-svn: 56594
 2008-09-24 23:27:55 +00:00
Evan Cheng 4751549f9b X86ISD::VZEXT_LOAD should produce and fold a chain. 
llvm-svn: 56593
 2008-09-24 23:26:36 +00:00
Dale Johannesen 86d421df23 Remove SelectionDag early allocation of registers 
for earlyclobbers.  Teach Local RA about earlyclobber,
and add some tests for it.

llvm-svn: 56592
 2008-09-24 23:13:09 +00:00
Anton Korobeynikov 3097c10347 Minor cleanup 
llvm-svn: 56588
 2008-09-24 22:22:54 +00:00
Anton Korobeynikov a9163feefe Get rid of virtual inheritance for ARM TAI 
llvm-svn: 56587
 2008-09-24 22:22:27 +00:00
Anton Korobeynikov 237f087eb9 Get rid of virtual inheritance for PPC TAI 
llvm-svn: 56586
 2008-09-24 22:22:03 +00:00
Anton Korobeynikov 77aa975bdd Use crazy template-based inheritance instead of virtual one. 
llvm-svn: 56585
 2008-09-24 22:21:39 +00:00
Anton Korobeynikov fd7faecfc2 Use helper 
llvm-svn: 56584
 2008-09-24 22:21:04 +00:00
Anton Korobeynikov d19e91e5a8 SmallPtrSet will be better 
llvm-svn: 56583
 2008-09-24 22:20:46 +00:00
Anton Korobeynikov 8e7b93938d Get rid of ReadOnlySection duplicate 
llvm-svn: 56582
 2008-09-24 22:20:27 +00:00
Anton Korobeynikov 91a6705839 Use named sections, where they should be 
llvm-svn: 56581
 2008-09-24 22:19:13 +00:00
Anton Korobeynikov 5906234c1d Get rid of now unused {Four,Eight,Sixteen}ByteConstantSection 
llvm-svn: 56580
 2008-09-24 22:18:54 +00:00
Anton Korobeynikov 123afb88c4 Use generic section-handling stuff to emit constant pool entries 
llvm-svn: 56579
 2008-09-24 22:17:59 +00:00
Anton Korobeynikov 41573b2131 Cleanup 
llvm-svn: 56578
 2008-09-24 22:17:27 +00:00
Anton Korobeynikov 22db30548d Get rid of duplicate char*/Section* stuff for TLS sections 
llvm-svn: 56577
 2008-09-24 22:17:06 +00:00
Anton Korobeynikov 1f365bbf55 Cleanup, no functionality change 
llvm-svn: 56576
 2008-09-24 22:16:33 +00:00
Anton Korobeynikov 7497762606 Get rid of duplicate char*/Section* DataSection 
llvm-svn: 56575
 2008-09-24 22:16:16 +00:00
Anton Korobeynikov f8dc8aac3c Get rid of duplicate char*/Section* TextSection 
llvm-svn: 56574
 2008-09-24 22:15:21 +00:00
Anton Korobeynikov 076e905b94 Move actual section printing stuff to AsmPrinter from TAI reducing heap traffic. 
llvm-svn: 56573
 2008-09-24 22:14:23 +00:00
Anton Korobeynikov 69ff51baa0 Drop obsolete hook and change all usage to new interface 
llvm-svn: 56572
 2008-09-24 22:13:07 +00:00
Anton Korobeynikov 7d002fa77b Provide direct function to switch to Section 
llvm-svn: 56571
 2008-09-24 22:12:10 +00:00