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49 Commits

Author SHA1 Message Date
Bill Wendling 1782584f56 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 bd09262e97 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 6fd71c6512 Use a dedicated IsLinux flag instead of an ELFLinux TargetType. 
llvm-svn: 50649
 2008-05-05 16:11:31 +00:00
Dan Gohman bcde172222 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 6c66bd368e Re-enable SSE4. 
llvm-svn: 49158
 2008-04-03 08:53:29 +00:00
Evan Cheng 3063c5546e Temporarily disabling SSE4 until we fix the encoding issues. 
llvm-svn: 49129
 2008-04-03 04:49:54 +00:00
Dan Gohman 980d7200c1 Speculatively micro-optimize memory-zeroing calls on Darwin 10. 
llvm-svn: 49048
 2008-04-01 20:38:36 +00:00
Anton Korobeynikov 7f125b2ba5 Add convenient helper for win64 check. Simplify things slightly. 
llvm-svn: 48691
 2008-03-22 20:57:27 +00:00
Evan Cheng 352acec37e Update comment. 
llvm-svn: 47002
 2008-02-12 07:59:55 +00:00
Evan Cheng a20a773654 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
Nate Begeman e14fdfaecd SSE 4.1 Intrinsics and detection 
llvm-svn: 46681
 2008-02-03 07:18:54 +00:00
Chris Lattner cce79c67ca darwin9 and above support aligned common symbols. 
llvm-svn: 45494
 2008-01-02 19:44:55 +00:00
Chris Lattner f3ebc3f3d2 Remove attribution from file headers, per discussion on llvmdev. 
llvm-svn: 45418
 2007-12-29 20:36:04 +00:00
Rafael Espindola 063f177300 Make ARM an X86 memcpy expansion more similar to each other. 
Now both subtarget define getMaxInlineSizeThreshold and the expansion uses it.

This should not change generated code.

llvm-svn: 43552
 2007-10-31 11:52:06 +00:00
Rafael Espindola 1de0c86717 Add support for having different alignment for objects on call frames. 
The x86-64 ABI states that objects passed on the stack have
8 byte alignment. Implement that.

llvm-svn: 41768
 2007-09-07 14:52:14 +00:00
Evan Cheng 623dd88775 Mac OS X X86-64 ABI is same as the standard. 
llvm-svn: 41700
 2007-09-04 16:44:41 +00:00
Rafael Espindola bb8a5cff67 Align i64 and f64 at 8 byte on x86-64. 
This is mandated table 3.1 at
http://www.x86-64.org/documentation/abi.pdf

llvm-svn: 41642
 2007-08-31 12:23:58 +00:00
Dale Johannesen a010822b45 Replace 4-line function with 10-line version per review comment. 
llvm-svn: 40881
 2007-08-06 22:10:35 +00:00
Dale Johannesen d1822ea7d1 Move lengthy conditional down 1 level per review comment. 
llvm-svn: 40878
 2007-08-06 21:48:35 +00:00
Evan Cheng 763cdfd371 Mac OS X X86-64 low 4G address not available. 
llvm-svn: 40701
 2007-08-01 23:45:51 +00:00
Bill Wendling f099841573 Add support for our first SSSE3 instruction "pmulhrsw". 
llvm-svn: 35869
 2007-04-10 22:10:25 +00:00
Chris Lattner 6cc58a0dc5 document some subtlety 
llvm-svn: 33257
 2007-01-16 17:51:40 +00:00
Bill Wendling c7b2ab9bdf Instead of yet another enum indicating the "assembly language flavor", 
just use the one that's in the subtarget.

llvm-svn: 33255
 2007-01-16 09:29:17 +00:00
Anton Korobeynikov a0554d90e8 * PIC codegen for X86/Linux has been implemented 
* PIC-aware internal structures in X86 Codegen have been refactored
* Visibility (default/weak) has been added
* Docs fixes (external weak linkage, visibility, formatting)

llvm-svn: 33136
 2007-01-12 19:20:47 +00:00
Anton Korobeynikov 4efbbc963f Really big cleanup. 
- New target type "mingw" was introduced
- Same things for both mingw & cygwin are marked as "cygming" (as in
gcc)
- .lcomm is supported here, so allow LLVM to use it
- Correctly use underscored versions of setjmp & _longjmp for both mingw
& cygwin

llvm-svn: 32833
 2007-01-03 11:43:14 +00:00
Anton Korobeynikov 430e68a1b9 Refactored JIT codegen for mingw32. Now we're using standart relocation 
type for distinguish JIT & non-JIT instead of "dirty" hacks :)

llvm-svn: 32745
 2006-12-22 22:29:05 +00:00
Anton Korobeynikov 93acb49182 Fixed dllimported symbols support during JIT'ing. JIT on mingw32 
platform should be more or less workable. At least, sim is running fine
under lli :)

llvm-svn: 32711
 2006-12-20 01:03:20 +00:00
Anton Korobeynikov 6dbdfe2baa Factor out GVRequiresExtraLoad() from .h to .cpp 
llvm-svn: 32048
 2006-11-30 22:42:55 +00:00
Anton Korobeynikov 5b96cdebb0 Refactored *GVRequiresExtraLoad() to Subtarget method. 
llvm-svn: 31887
 2006-11-21 00:01:06 +00:00
Evan Cheng a8b4aeace0 Proper fix for rdar://problem/4770604 Thanks to Stuart Hastings! 
llvm-svn: 30985
 2006-10-16 21:00:37 +00:00
Evan Cheng ff1beda569 Still need to support -mcpu=<> or cross compilation will fail. Doh. 
llvm-svn: 30764
 2006-10-06 09:17:41 +00:00
Evan Cheng 9274f72e58 Do away with CPU feature list. Just use CPUID to detect MMX, SSE, SSE2, SSE3, and 64-bit support. 
llvm-svn: 30763
 2006-10-06 08:21:07 +00:00
Anton Korobeynikov d61d39ec53 Adding dllimport, dllexport and external weak linkage types. 
DLL* linkages got full (I hope) codegeneration support in C & both x86
assembler backends.
External weak linkage added for future use, we don't provide any
codegeneration, etc. support for it.

llvm-svn: 30374
 2006-09-14 18:23:27 +00:00
Evan Cheng 11b0a5dbd4 Committing X86-64 support. 
llvm-svn: 30177
 2006-09-08 06:48:29 +00:00
Chris Lattner 2785d55446 add a new value for the command line optn 
llvm-svn: 30165
 2006-09-07 22:32:28 +00:00
Jim Laskey c7abe471fe Make the x86 asm flavor part of the subtarget info. 
llvm-svn: 30146
 2006-09-07 12:23:47 +00:00
Chris Lattner e8ce162969 Add accessor 
llvm-svn: 30080
 2006-09-04 04:08:58 +00:00
Evan Cheng 5588de9415 x86 / Darwin PIC support. 
llvm-svn: 26273
 2006-02-18 00:15:05 +00:00
Evan Cheng 03c1e6f48e A bit more memset / memcpy optimization. 
Turns them into calls to memset / memcpy if 1) buffer(s) are not DWORD aligned,
2) size is not known to be greater or equal to some minimum value (currently 128).

llvm-svn: 26224
 2006-02-16 00:21:07 +00:00
Chris Lattner c642aa5e1c * Fix 80-column violations 
* Rename hasSSE -> hasSSE1 to avoid my continual confusion with 'has any SSE'.
* Add inline asm constraint specification.

llvm-svn: 25854
 2006-01-31 19:43:35 +00:00
Evan Cheng cde9e30bc6 x86 CPU detection and proper subtarget support 
llvm-svn: 25679
 2006-01-27 08:10:46 +00:00
Evan Cheng 54c13da29c Added preliminary x86 subtarget support. 
llvm-svn: 25645
 2006-01-26 09:53:06 +00:00
Chris Lattner 40f8c8450d Simplify the subtarget info, allow the asmwriter to do some target sensing 
based on TargetType.

llvm-svn: 24478
 2005-11-21 22:43:58 +00:00
Chris Lattner 3eb876117a Make the X86 subtarget compute the basic target type: ELF, Cygwin, Darwin, 
or native Win32

llvm-svn: 24476
 2005-11-21 22:31:58 +00:00
Jim Laskey 19058c3989 1. Use SubtargetFeatures in llc/lli. 
2. Propagate feature "string" to all targets.

3. Implement use of SubtargetFeatures in PowerPCTargetSubtarget.

llvm-svn: 23192
 2005-09-01 21:38:21 +00:00
Nate Begeman 3bcfcd9474 Add Subtarget support to PowerPC. Next up, using it. 
llvm-svn: 22644
 2005-08-04 07:12:09 +00:00
Jeff Cohen 33a030e36c Eliminate tabs and trailing spaces. 
llvm-svn: 22520
 2005-07-27 05:53:44 +00:00
Chris Lattner 351817b1f9 Minor changes to improve comments and fix the build on _WIN32 systems. 
llvm-svn: 22391
 2005-07-12 02:36:10 +00:00
Nate Begeman f26625e1de Implement Subtarget support 
Implement the X86 Subtarget.

This consolidates the checks for target triple, and setting options based
on target triple into one place.  This allows us to convert the asm printer
and isel over from being littered with "forDarwin", "forCygwin", etc. into
just having the appropriate flags for each subtarget feature controlling
the code for that feature.

This patch also implements indirect external and weak references in the
X86 pattern isel, for darwin.  Next up is to convert over the asm printers
to use this new interface.

llvm-svn: 22389
 2005-07-12 01:41:54 +00:00