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89 Commits

Author SHA1 Message Date
Dan Gohman
3517f425b8 Target-independent support for TargetFlags on BlockAddress operands, 
and support for blockaddresses in x86-32 PIC mode.

llvm-svn: 89506
 2009-11-20 23:18:13 +00:00
David Goodwin
e1d06f2239 Allow target to specify regclass for which antideps will only be broken along the critical path. 
llvm-svn: 88682
 2009-11-13 19:52:48 +00:00
David Goodwin
93a4f29c67 Fixed to address code review. No functional changes. 
llvm-svn: 86634
 2009-11-10 00:48:55 +00:00
David Goodwin
538f9c25f8 Allow targets to specify register classes whose member registers should not be renamed to break anti-dependencies. 
llvm-svn: 86628
 2009-11-10 00:15:47 +00:00
Chris Lattner
25421b6954 indicate what the native integer types for the target are. 
Please verify.

llvm-svn: 86397
 2009-11-07 19:07:32 +00:00
Evan Cheng
0db11ae5a2 X86 needs critical path anti-dependency breaking. 
llvm-svn: 84931
 2009-10-23 05:57:35 +00:00
David Goodwin
82c1dd9754 Allow the target to select the level of anti-dependence breaking that should be performed by the post-RA scheduler. The default is none. 
llvm-svn: 84911
 2009-10-22 23:19:17 +00:00
Evan Cheng
eb82c3743a Turn on post-alloc scheduling for x86. 
llvm-svn: 84431
 2009-10-18 19:57:27 +00:00
Evan Cheng
1f32fa84b0 Oops. I forgot to change the tests first. Disable post-alloc scheduling. 
llvm-svn: 84425
 2009-10-18 18:31:31 +00:00
Evan Cheng
e921ebe70d -Revert parts of 84326 and 84411. Distinquishing between fixed and non-fixed 
stack slots and giving them different PseudoSourceValue's did not fix the
problem of post-alloc scheduling miscompiling llvm itself.
- Apply Dan's conservative workaround by assuming any non fixed stack slots can
alias other memory locations. This means a load from spill slot #1 cannot 
move above a store of spill slot #2. 
- Enable post-alloc scheduling for x86 at optimization leverl Default and above.

llvm-svn: 84424
 2009-10-18 18:16:27 +00:00
Evan Cheng
e1fbdc5244 Change createPostRAScheduler so it can be turned off at llc -O1. 
llvm-svn: 84273
 2009-10-16 21:06:15 +00:00
Evan Cheng
0a57c7d459 Remove X86Subtarget::IsLinux. It's no longer being used. 
llvm-svn: 84200
 2009-10-15 20:23:21 +00:00
Chris Lattner
e6bd7b39eb rearrange X86ATTAsmPrinter::doFinalization, making a scan of 
the global variable list only happen for COFF targets.

llvm-svn: 82010
 2009-09-16 05:20:33 +00:00
Daniel Dunbar
80f8fc8a2a Make these functions static and local. 
llvm-svn: 80892
 2009-09-03 05:47:34 +00:00
Evan Cheng
6d2d69faf9 X86JITInfo::getLazyResolverFunction() should not read cpu id to determine whether sse is available. Just use consult subtarget. 
No functionality changes.

llvm-svn: 80880
 2009-09-03 04:37:05 +00:00
Chris Lattner
c66a43e2b0 Add support for modeling whether or not the processor has support for 
conditional moves as a subtarget feature.  This is the easy part of 
PR4841.

llvm-svn: 80763
 2009-09-02 05:53:04 +00:00
Chris Lattner
c2a229453e change the -x86-asm-syntax=intel/att flag to be in X86TAI 
instead of X86 Subtarget.  This elimianates dependencies on
X86Subtarget from X86TAI.

llvm-svn: 78746
 2009-08-11 23:01:09 +00:00
Daniel Dunbar
0b82c938fe Normalize Subtarget constructors to take a target triple string instead of 
Module*.

Also, dropped uses of TargetMachine where unnecessary. The only target which
still takes a TargetMachine& is Mips, I would appreciate it if someone would
normalize this to match other targets.

llvm-svn: 77918
 2009-08-02 22:11:08 +00:00
Chris Lattner
478fc8442b remove the now-dead TM argument to these methods. 
llvm-svn: 75276
 2009-07-10 21:00:45 +00:00
Chris Lattner
9c13214ee8 make PIC vs DynamicNoPIC be explicit in PICStyles. 
llvm-svn: 75275
 2009-07-10 20:58:47 +00:00
Chris Lattner
9deef50410 add a couple of predicates to test for "stub style pic in PIC mode" and "stub style pic in dynamic-no-pic" mode. 
llvm-svn: 75273
 2009-07-10 20:47:30 +00:00
Chris Lattner
6097f82e18 simplify fast isel by using ClassifyGlobalReference. This 
elimiantes the last use of GVRequiresExtraLoad, so delete it.

llvm-svn: 75244
 2009-07-10 07:48:51 +00:00
Chris Lattner
7c038a2b3c eliminate GVRequiresRegister, replacing it with predicates we 
need for other purposes.

llvm-svn: 75243
 2009-07-10 07:38:24 +00:00
Chris Lattner
0cae8c7845 move some classification logic around. Now GVRequiresExtraLoad 
is just a trivial wrapper around "ClassifyGlobalReference", which
stole a ton of logic from LowerGlobalAddress.

llvm-svn: 75237
 2009-07-10 07:20:05 +00:00
Chris Lattner
41fccd30b7 GVRequiresExtraLoad is now never used for calls, simplify it based on this. 
llvm-svn: 75232
 2009-07-10 05:52:02 +00:00
Chris Lattner
832a724072 actually, just eliminate PCRelGVRequiresExtraLoad. It makes the code 
more complex and slow than just directly testing what we care about.

llvm-svn: 75231
 2009-07-10 05:48:03 +00:00
Chris Lattner
2161376696 There is only one case where GVRequiresExtraLoad returns true for calls: 
split its handling out to PCRelGVRequiresExtraLoad, and simplify code
based on this.

llvm-svn: 75230
 2009-07-10 05:45:15 +00:00
Chris Lattner
2e5e403f53 the "isDirectCall" operand of GVRequiresRegister is always false, eliminate it. 
llvm-svn: 75229
 2009-07-10 05:37:11 +00:00
Chris Lattner
cd52f7f20e When in -static mode, force the PIC style to none. Doing this requires fixing 
code which conflated RIPRel PIC with x86-64.  Fix these to just check for X86-64
directly.

llvm-svn: 75092
 2009-07-09 03:15:51 +00:00
David Greene
6be6604b5d Fix a subtarget feature bug. 
llvm-svn: 74428
 2009-06-29 16:51:01 +00:00
David Greene
d33e8e7d83 Add feature flags for AVX and FMA and fix some SSE4A feature flag 
initialization problems.

llvm-svn: 74350
 2009-06-26 22:46:54 +00:00
Chris Lattner
5ef06d833d cosmetic changes. 
llvm-svn: 73836
 2009-06-21 01:27:55 +00:00
Stefanus Du Toit
031dcf315f Update CPU capabilities for AMD machines 
- added processors k8-sse3, opteron-sse3, athlon64-sse3, amdfam10, and
barcelona with appropriate sse3/4a levels
- added FeatureSSE4A for amdfam10 processors
in X86Subtarget:
- added hasSSE4A
- updated AutoDetectSubtargetFeatures to detect SSE4A
- updated GetCurrentX86CPU to detect family 15 with sse3 as k8-sse3 and
family 10h as amdfam10

New processor names match those used by gcc.

Patch by Paul Redmond!

llvm-svn: 72434
 2009-05-26 21:04:35 +00:00
Anton Korobeynikov
34fc85e2ee Propagate CPU string out of SubtargetFeatures 
llvm-svn: 72335
 2009-05-23 19:50:50 +00:00
Evan Cheng
e17c02e328 Try again. Allow call to immediate address for ELF or when in static relocation mode. 
llvm-svn: 72160
 2009-05-20 04:53:57 +00:00
Dan Gohman
8271066844 Tidy up #includes, deleting a bunch of unnecessary #includes. 
llvm-svn: 61715
 2009-01-05 17:59:02 +00:00
Evan Cheng
c52f942d67 Do not isel load folding bt instructions for pentium m, core, core2, and AMD processors. These are significantly slower than a load followed by a bt of a register. 
llvm-svn: 61557
 2009-01-02 05:35:45 +00:00
Dan Gohman
c3e24d559b Add initial support for back-scheduling address computations, 
especially in the case of addresses computed from loop induction
variables.

llvm-svn: 61075
 2008-12-16 03:35:01 +00:00
Dale Johannesen
c6404f98b2 Forgot a file. 
llvm-svn: 60609
 2008-12-05 21:55:35 +00:00
Duncan Sands
7fd4ea5847 Fix build with gcc-4.4: it doesn't like PICStyle 
being both a namespace and a variable name.

llvm-svn: 60208
 2008-11-28 09:29:37 +00:00
Bill Wendling
618d422cdd Just don't transform this memset into "bzero" if no-builtin is specified. 
llvm-svn: 56888
 2008-09-30 22:05:33 +00:00
Bill Wendling
9ad453e943 Add the new `-no-builtin' flag. This flag is meant to mimic the GCC 
`-fno-builtin' flag. Currently, it's used to replace "memset" with "_bzero"
instead of "__bzero" on Darwin10+. This arguably violates the meaning of this
flag, but is currently sufficient. The meaning of this flag should become more
specific over time.

llvm-svn: 56885
 2008-09-30 21:22:07 +00:00
Dan Gohman
8ee7bf053e Use a dedicated IsLinux flag instead of an ELFLinux TargetType. 
llvm-svn: 50649
 2008-05-05 16:11:31 +00:00
Dan Gohman
c860d9c77c Add AsmPrinter support for emitting a directive to declare that 
the code being generated does not require an executable stack.

Also, add target-specific code to make use of this on Linux
on x86. 

llvm-svn: 50634
 2008-05-05 00:28:39 +00:00
Evan Cheng
0585b4bc2a Re-enable SSE4. 
llvm-svn: 49158
 2008-04-03 08:53:29 +00:00
Evan Cheng
f112eb3b1c Temporarily disabling SSE4 until we fix the encoding issues. 
llvm-svn: 49129
 2008-04-03 04:49:54 +00:00
Dan Gohman
168b2b1300 Speculatively micro-optimize memory-zeroing calls on Darwin 10. 
llvm-svn: 49048
 2008-04-01 20:38:36 +00:00
Anton Korobeynikov
dad919f561 Add convenient helper for win64 check. Simplify things slightly. 
llvm-svn: 48691
 2008-03-22 20:57:27 +00:00
Evan Cheng
c3875c88a7 Update comment. 
llvm-svn: 47002
 2008-02-12 07:59:55 +00:00
Evan Cheng
a377b2bbd1 Fix a x86-64 codegen deficiency. Allow gv + offset when using rip addressing mode. 
Before:
_main:
        subq    $8, %rsp
        leaq    _X(%rip), %rax
        movsd   8(%rax), %xmm1
        movss   _X(%rip), %xmm0
        call    _t
        xorl    %ecx, %ecx
        movl    %ecx, %eax
        addq    $8, %rsp
        ret
Now:
_main:
        subq    $8, %rsp
        movsd   _X+8(%rip), %xmm1
        movss   _X(%rip), %xmm0
        call    _t
        xorl    %ecx, %ecx
        movl    %ecx, %eax
        addq    $8, %rsp
        ret

Notice there is another idiotic codegen issue that needs to be fixed asap:
xorl    %ecx, %ecx
movl    %ecx, %eax

llvm-svn: 46850
 2008-02-07 08:53:49 +00:00