Commit Graph

445 Commits

Author SHA1 Message Date
Lauro Ramos Venancio 4e91908f17 X86 TLS: Implement review feedback.
llvm-svn: 36318
2007-04-21 20:56:26 +00:00
Lauro Ramos Venancio 2518889872 Implement "general dynamic", "initial exec" and "local exec" TLS models for
X86 32 bits.

llvm-svn: 36283
2007-04-20 21:38:10 +00:00
Anton Korobeynikov 9b91d98a30 Add comment
llvm-svn: 36213
2007-04-17 19:34:00 +00:00
Chris Lattner ff0598de75 rename X86FunctionInfo to X86MachineFunctionInfo to match the header file
it is defined in.

llvm-svn: 36196
2007-04-17 17:21:52 +00:00
Anton Korobeynikov 8b7aab009e Implemented correct stack probing on mingw/cygwin for dynamic alloca's.
Also, fixed static case in presence of eax livin. This fixes PR331

PS: Why don't we still have push/pop instructions? :)
llvm-svn: 36195
2007-04-17 09:20:00 +00:00
Anton Korobeynikov fb80151c42 Removed tabs everywhere except autogenerated & external files. Add make
target for tabs checking.

llvm-svn: 36146
2007-04-16 18:10:23 +00:00
Chris Lattner 2805bce656 Fix mmx paddq, add support for the 'y' register class, though it isn't tested.
llvm-svn: 35940
2007-04-12 04:14:49 +00:00
Chris Lattner 808ac93f68 remove some dead hooks
llvm-svn: 35845
2007-04-09 23:31:19 +00:00
Chris Lattner 39f65335d5 remove some dead target hooks, subsumed by isLegalAddressingMode
llvm-svn: 35840
2007-04-09 22:27:04 +00:00
Chris Lattner 7451e4d6a1 move a bunch of register constraints from being handled by
getRegClassForInlineAsmConstraint to being handled by
getRegForInlineAsmConstraint.  This allows us to let the llvm register allocator
allocate, which gives us better code.  For example, X86/2007-01-29-InlineAsm-ir.ll
used to compile to:

_run_init_process:
        subl $4, %esp
        movl %ebx, (%esp)
        xorl %ebx, %ebx
        movl $11, %eax
        movl %ebx, %ecx
        movl %ebx, %edx
        # InlineAsm Start
        push %ebx ; movl %ebx,%ebx ; int $0x80 ; pop %ebx
        # InlineAsm End

Now we get:
_run_init_process:
        xorl %ecx, %ecx
        movl $11, %eax
        movl %ecx, %edx
        # InlineAsm Start
        push %ebx ; movl %ecx,%ebx ; int $0x80 ; pop %ebx
        # InlineAsm End

llvm-svn: 35804
2007-04-09 05:49:22 +00:00
Chris Lattner 2b6b4eb471 implement support for CodeGen/X86/inline-asm-x-scalar.ll:test3 - i32/i64 values
used with x constraints.

llvm-svn: 35803
2007-04-09 05:31:48 +00:00
Chris Lattner 590ed5e5b7 implement CodeGen/X86/inline-asm-x-scalar.ll
llvm-svn: 35799
2007-04-09 05:11:28 +00:00
Chris Lattner 1eb94d973a implement the new addressing mode description hook.
llvm-svn: 35521
2007-03-30 23:15:24 +00:00
Bill Wendling 2338e21b2b Remove cruft I put in there...
llvm-svn: 35394
2007-03-28 01:02:54 +00:00
Bill Wendling ad2db4a4cf Unbreak mmx arithmetic. It was barfing trying to do v8i8 arithmetic.
llvm-svn: 35392
2007-03-28 00:57:11 +00:00
Bill Wendling 6dff51ae65 Fix so that pandn is emitted instead of an xor/and combo. Add integer
comparison operators.

llvm-svn: 35385
2007-03-27 20:22:40 +00:00
Bill Wendling 158f6092a2 Promote to v1i64 type...
llvm-svn: 35353
2007-03-26 08:03:33 +00:00
Bill Wendling 98d2104c6f Add support for the v1i64 type. This makes better code for this:
#include <mmintrin.h>

extern __m64 C;

void baz(__v2si *A, __v2si *B)
{
  *A = C;
  _mm_empty();
}

We get this:

_baz:
        call "L1$pb"
"L1$pb":
        popl %eax
        movl L_C$non_lazy_ptr-"L1$pb"(%eax), %eax
        movq (%eax), %mm0
        movl 4(%esp), %eax
        movq %mm0, (%eax)
        emms
        ret

GCC gives us this:

_baz:
        pushl   %ebx
        call    L3
"L00000000001$pb":
L3:
        popl    %ebx
        subl    $8, %esp
        movl    L_C$non_lazy_ptr-"L00000000001$pb"(%ebx), %eax
        movl    (%eax), %edx
        movl    4(%eax), %ecx
        movl    16(%esp), %eax
        movl    %edx, (%eax)
        movl    %ecx, 4(%eax)
        emms
        addl    $8, %esp
        popl    %ebx
        ret

llvm-svn: 35351
2007-03-26 07:53:08 +00:00
Chris Lattner d685514e2e switch TargetLowering::getConstraintType to take the entire constraint,
not just the first letter.  No functionality change.

llvm-svn: 35322
2007-03-25 02:14:49 +00:00
Chris Lattner 03a643aa69 enforce the proper range for the i386 N constraint.
llvm-svn: 35319
2007-03-25 01:57:35 +00:00
Bill Wendling d551a18783 Support added for shifts and unpacking MMX instructions.
llvm-svn: 35266
2007-03-22 18:42:45 +00:00
Dale Johannesen 0c6bb5eab7 repair x86 performance, dejagnu problems from previous change
llvm-svn: 35245
2007-03-21 21:51:52 +00:00
Chris Lattner f01f87bc63 fix a warning
llvm-svn: 35152
2007-03-19 00:39:32 +00:00
Devang Patel b38c2ec89c Support 'I' inline asm constraint.
llvm-svn: 35129
2007-03-17 00:13:28 +00:00
Bill Wendling 144b8bbf17 And now support for MMX logical operations.
llvm-svn: 35125
2007-03-16 09:44:46 +00:00
Bill Wendling e31034125c Multiplication support for MMX.
llvm-svn: 35118
2007-03-15 21:24:36 +00:00
Evan Cheng a1779b9739 Under X86-64 large code model, do not emit 32-bit pc relative calls.
llvm-svn: 35108
2007-03-14 22:11:11 +00:00
Evan Cheng 3ab7ea7965 More flexible TargetLowering LSR hooks for testing whether an immediate is
a legal target address immediate or scale.

llvm-svn: 35073
2007-03-12 23:28:50 +00:00
Evan Cheng 57f261b13a Stupid bug: SSE2 supports v2i64 add / sub.
llvm-svn: 35070
2007-03-12 22:58:52 +00:00
Bill Wendling e9b81f5366 Adding more arithmetic operators to MMX. This is an almost exact copy of
the addition. Please let me know if you have suggestions.

llvm-svn: 35055
2007-03-10 09:57:05 +00:00
Bill Wendling 6092ce25cf Added "padd*" support for MMX. Added MMX move stuff to X86InstrInfo so that
moves, loads, etc. are recognized.

llvm-svn: 35031
2007-03-08 22:09:11 +00:00
Anton Korobeynikov ed4b303c10 Refactoring of formal parameter flags. Enable properly use of
zext/sext/aext stuff.

llvm-svn: 35008
2007-03-07 16:25:09 +00:00
Bill Wendling 97905b4027 Properly support v8i8 and v4i16 types. It now converts them to v2i32 for
load and stores.

llvm-svn: 35002
2007-03-07 05:43:18 +00:00
Bill Wendling bbd25984b7 Add LOAD/STORE support for MMX.
llvm-svn: 34978
2007-03-06 18:53:42 +00:00
Anton Korobeynikov e7ec3bc7bc Use new SDIselParamAttr enumeration. This removes "magick" constants
from formal attributes' flags processing.

llvm-svn: 34963
2007-03-06 08:12:33 +00:00
Evan Cheng deaea25eb9 X86-64 VACOPY needs custom expansion. va_list is a struct { i32, i32, i8*, i8* }.
llvm-svn: 34857
2007-03-02 23:16:35 +00:00
Anton Korobeynikov 57af2a4f3b Simplify things
llvm-svn: 34849
2007-03-02 21:50:27 +00:00
Chris Lattner 9c7e5e365d argument lowering should copy from the vreg shadows of live-in arguments
passed in registers, not directly from the pregs themselves.

llvm-svn: 34838
2007-03-02 05:12:29 +00:00
Anton Korobeynikov af8be4458f Ensure that fastcall'ed function is correctly mangled & stack is
properly aligned

llvm-svn: 34788
2007-03-01 16:29:22 +00:00
Chris Lattner 7373f3a351 remove dead option
llvm-svn: 34754
2007-02-28 18:39:53 +00:00
Chris Lattner 152bfa103e use high-level functions in CCState
llvm-svn: 34739
2007-02-28 07:09:55 +00:00
Chris Lattner 227b6c5d19 make use of helper functions in CCState for analyzing formals and calls.
llvm-svn: 34737
2007-02-28 07:00:42 +00:00
Chris Lattner d439e86078 switch LowerFastCCCallTo over to using the new fastcall description.
llvm-svn: 34734
2007-02-28 06:26:33 +00:00
Chris Lattner 66e1d1dd7e switch LowerFastCCArguments over to using the autogenerated Fastcall description.
llvm-svn: 34733
2007-02-28 06:21:19 +00:00
Chris Lattner 3066beccb5 rearrange code
llvm-svn: 34731
2007-02-28 06:10:12 +00:00
Chris Lattner 3ed3be3b4a remove fastcc (not fastcall) support
llvm-svn: 34730
2007-02-28 06:05:16 +00:00
Chris Lattner b9db225049 switch LowerCCCArguments over to using autogenerated CC.
llvm-svn: 34729
2007-02-28 05:46:49 +00:00
Chris Lattner 5958b176f3 simplify sret handling
llvm-svn: 34728
2007-02-28 05:39:26 +00:00
Chris Lattner be7995953a switch LowerCCCCallTo over to using an autogenerated callingconv
llvm-svn: 34727
2007-02-28 05:31:48 +00:00
Chris Lattner ba3d273122 switch return value passing and the x86-64 calling convention information
over to being autogenerated from the X86CallingConv.td file.

llvm-svn: 34722
2007-02-28 04:55:35 +00:00
Chris Lattner c9eed39a5d switch x86-64 return value lowering over to using same mechanism as argument
lowering uses.

llvm-svn: 34657
2007-02-27 05:28:59 +00:00
Chris Lattner 9f059194a7 Minor refactoring of CC Lowering interfaces
llvm-svn: 34656
2007-02-27 05:13:54 +00:00
Chris Lattner dc3adc83e7 move CC Lowering stuff to its own public interface
llvm-svn: 34655
2007-02-27 04:43:02 +00:00
Chris Lattner 2e5e8407ad refactor x86-64 argument lowering yet again, this time eliminating templates,
'clients', etc, and adding CCValAssign instead.

llvm-svn: 34654
2007-02-27 04:18:15 +00:00
Chris Lattner ff19957468 switch to smallvector
llvm-svn: 34633
2007-02-26 07:59:53 +00:00
Chris Lattner 294780829a initial hack at splitting the x86-64 calling convention info out from the
mechanics that process it.  I'm still not happy with this, but it's a step
in the right direction.

llvm-svn: 34631
2007-02-26 07:50:02 +00:00
Chris Lattner d41bff0f97 the truncate must always be done, it's only the assert that is conditional.
llvm-svn: 34628
2007-02-26 05:21:05 +00:00
Chris Lattner 1db979bae8 in X86-64 CCC, i8/i16 arguments are already properly zext/sext'd on input.
Capture this so that downstream zext/sext's are optimized out.  This
compiles:
  int test(short X) { return (int)X; }

to:

_test:
        movl %edi, %eax
        ret

instead of:

_test:
        movswl %di, %eax
        ret


GCC produces this bizarre code:

_test:
        movw    %di, -12(%rsp)
        movswl  -12(%rsp),%eax
        ret

llvm-svn: 34623
2007-02-26 03:18:56 +00:00
Chris Lattner 8924332e22 Fix an X86-64 abi bug. We now compile:
void foo(short);
void bar(unsigned short A) {
  foo(A);
}

into:

_bar:
        subq $8, %rsp
        movswl %di, %edi
        call _foo
        addq $8, %rsp
        ret

instead of:

_bar:
        subq $8, %rsp
        call _foo
        addq $8, %rsp
        ret

Testcase here: test/CodeGen/X86/x86-64-shortint.ll

llvm-svn: 34615
2007-02-25 23:10:46 +00:00
Chris Lattner 3e0703357f fix CodeGen/X86/2007-02-25-FastCCStack.ll, a regression from my patch last
night:  fastcc returns should only go in XMM0 if we have SSE2 or above.

llvm-svn: 34613
2007-02-25 22:23:46 +00:00
Chris Lattner fcee9b5568 fastcc functions that return double values now return them in xmm0 on x86-32.
This implements CodeGen/X86/fp-stack-ret.ll:test[23]

llvm-svn: 34592
2007-02-25 09:31:16 +00:00
Chris Lattner 9d9cc84f5b allow vectors to be passed to stdcall/fastcall functions
llvm-svn: 34590
2007-02-25 09:14:25 +00:00
Chris Lattner 2fc0d70392 move LowerRET into the 'Return Value Calling Convention Implementation'
section of the file.

llvm-svn: 34589
2007-02-25 09:12:39 +00:00
Chris Lattner ba474f58a4 make all Lower*CallTo implementations use LowerCallResult to handle their
result value stuff.  This eliminates a bunch of duplicated code and now
GetRetValueLocs is the sole place that decides where a value is returned.

llvm-svn: 34588
2007-02-25 09:10:05 +00:00
Chris Lattner 7802f3e2ea pass the calling convention into Lower*CallTo, instead of using ad-hoc flags.
llvm-svn: 34587
2007-02-25 09:06:15 +00:00
Chris Lattner 0cd9960fe7 factor a bunch of code out of LowerCCCCallTo into a new LowerCallResult
function.  This function now uses GetRetValueLocs to determine *where*
the result values are located and concerns itself with *how* to pull the
values out.

llvm-svn: 34586
2007-02-25 08:59:22 +00:00
Chris Lattner 3c76309a5b move some code around, pass in calling conv, even though it is unused
llvm-svn: 34585
2007-02-25 08:29:00 +00:00
Chris Lattner dfda38f7dc simplify result value lowering by splitting the selection of *where* to return
registers out from the logic of *how* to return them.

This changes X86-64 to mark EAX live out when returning a 32-bit value,
where before it marked RAX liveout.

llvm-svn: 34582
2007-02-25 08:15:11 +00:00
Chris Lattner d6b853ad1b make void-return not a special case
llvm-svn: 34579
2007-02-25 07:18:38 +00:00
Chris Lattner 35a08551a5 eliminate a bunch more temporary vectors from X86 lowering.
llvm-svn: 34578
2007-02-25 07:10:00 +00:00
Chris Lattner e56fef9b51 eliminate temporary vectors created during X86 lowering.
llvm-svn: 34577
2007-02-25 06:40:16 +00:00
Chris Lattner 84141d4e99 remove std::vector's in RET lowering.
llvm-svn: 34576
2007-02-25 06:21:57 +00:00
Jim Laskey e0008e23cf Simplify lowering and selection of exception ops.
llvm-svn: 34488
2007-02-22 14:56:36 +00:00
Jim Laskey 3796abea0f Support to provide exception and selector registers.
llvm-svn: 34482
2007-02-21 22:54:50 +00:00
Evan Cheng 84a041eb98 ELF / PIC requires GOT be in the EBX register during calls via PLT GOT pointer.
Add implicit uses of EBX to calls to ensure liveintervalanalysis does not treat
the GOT in EBX move as dead upon definition.
This should fix PR1207.

llvm-svn: 34470
2007-02-21 21:18:14 +00:00
Anton Korobeynikov 1b4e6015b4 Fixed uninitialized stuff inside LegalizeDAG. Fortunately, the only
affected part is codegen of "memove" inside x86 backend. This fixes
PR1144

llvm-svn: 33752
2007-02-01 08:39:52 +00:00
Nate Begeman eda5997cc8 Finish off bug 680, allowing targets to custom lower frame and return
address nodes.

llvm-svn: 33636
2007-01-29 22:58:52 +00:00
Nick Lewycky 0c49722b36 Fix compile error "jump to case label crosses initialization".
What compiler are people using that accepts this code?

llvm-svn: 33603
2007-01-28 15:39:16 +00:00
Anton Korobeynikov 037c867b54 Propagate changes from my local tree. This patch includes:
1. New parameter attribute called 'inreg'. It has meaning "place this
parameter in registers, if possible". This is some generalization of
gcc's regparm(n) attribute. It's currently used only in X86-32 backend.
2. Completely rewritten CC handling/lowering code inside X86 backend.
Merged stdcall + c CCs and fastcall + fast CC.
3. Dropped CSRET CC. We cannot add struct return variant for each
target-specific CC (e.g. stdcall + csretcc and so on).
4. Instead of CSRET CC introduced 'sret' parameter attribute. Setting in
on first attribute has meaning 'This is hidden pointer to structure
return. Handle it gently'.
5. Fixed small bug in llvm-extract + add new feature to
FunctionExtraction pass, which relinks all internal-linkaged callees
from deleted function to external linkage. This will allow further
linking everything together.

NOTEs: 1. Documentation will be updated soon.
       2. llvm-upgrade should be improved to translate csret => sret.
          Before this, there will be some unexpected test fails.
llvm-svn: 33597
2007-01-28 13:31:35 +00:00
Jim Laskey f9e5445ed4 Make LABEL a builtin opcode.
llvm-svn: 33537
2007-01-26 14:34:52 +00:00
Evan Cheng 1281dc32ef Linux GOT indirect reference is only necessary in PIC mode.
llvm-svn: 33441
2007-01-22 21:34:25 +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
Evan Cheng 82241c86e9 - FCOPYSIGN custom lowering bug. Clear the sign bit of operand 0 first before
or'ing in the sign bit of operand 1.
- Tweaking: rather than left shift the sign bit, fp_extend operand 1 first
  before taking its sign bit if its type is smaller than that of operand 0.

llvm-svn: 32932
2007-01-05 21:37:56 +00:00
Evan Cheng 8c7094a770 Typo
llvm-svn: 32902
2007-01-05 08:32:24 +00:00
Evan Cheng 4363e884c0 With SSE2, expand FCOPYSIGN to a series of SSE bitwise operations.
llvm-svn: 32900
2007-01-05 07:55:56 +00:00
Reid Spencer e87b5e9825 Fix a comment that referred to the now defunct ubyte type.
llvm-svn: 32840
2007-01-03 17:24:59 +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
Reid Spencer e63b6518fa For PR950:
Three changes:
1. Convert signed integer types to signless versions.
2. Implement the @sext and @zext parameter attributes. Previously the
   type of an function parameter was used to determine whether it should
   be sign extended or zero extended before the call. This information is
   now communicated via the function type's parameter attributes.
3. The interface to LowerCallTo had to be changed in order to accommodate
   the parameter attribute information. Although it would have been
   convenient to pass in the FunctionType itself, there isn't always one
   present in the caller. Consequently, a signedness indication for the
   result type and for each parameter was provided for in the interface
   to this method. All implementations were changed to make the adjustment
   necessary.

llvm-svn: 32788
2006-12-31 05:55:36 +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
Evan Cheng 735fcf74d8 f64 <-> i64 bit_convert using movq in 64-bit mode.
llvm-svn: 32587
2006-12-14 21:55:39 +00:00
Anton Korobeynikov 3b7c257cae Cleaned setjmp/longjmp lowering interfaces. Now we're producing right
code (both asm & cbe) for Mingw32 target.
Removed autoconf checks for underscored versions of setjmp/longjmp.

llvm-svn: 32415
2006-12-10 23:12:42 +00:00
Chris Lattner c20b7e878a If we have ScalarSSE, we can select bitconvert into single instructions.
This compiles bitcast.ll:test3/test4 into:

_test3:
        movd %xmm0, %eax
        ret
_test4:
        movd %edi, %xmm0
        ret

llvm-svn: 32230
2006-12-05 18:45:06 +00:00
Chris Lattner 55c17f9177 Fix PR1033 and CodeGen/X86/bitcast.ll, by expanding bitcast to a load/store pair.
This could be better, readme entry pending.

llvm-svn: 32228
2006-12-05 18:22:22 +00:00
Chris Lattner a16201c672 Fix typo noticed by Lauro Ramos Venancio, thanks!
llvm-svn: 32223
2006-12-05 17:29:40 +00:00
Evan Cheng 62cdc3f011 - Fix X86-64 JIT by temporarily disabling code that treats GV address as 32-bit
immediate in small code model. The JIT cannot ensure GV's are placed in the
lower 4G.
- Some preliminary support for large code model.

llvm-svn: 32215
2006-12-05 04:01:03 +00:00
Chris Lattner d139ddd2e6 Add support for 64-bit 'r' constraint. Patch by by Rafael ~Avila de Espíndol!
This fixes PR1029 and Regression/CodeGen/X86/x86-64-asm.ll

llvm-svn: 32206
2006-12-04 22:38:21 +00:00
Evan Cheng ae1cd75af7 - Use a different wrapper node for RIP-relative GV, etc.
- Proper support for both small static and PIC modes under X86-64
- Some (non-optimal) support for medium modes.

llvm-svn: 32046
2006-11-30 21:55:46 +00:00
Evan Cheng 7a9238c84d In PIC mode, GV not requiring an extra load can be used as address immediate.
llvm-svn: 32028
2006-11-29 23:48:14 +00:00
Evan Cheng 0b1692216d Fix for PR1018 - Better support for X86-64 Linux in small code model.
llvm-svn: 32026
2006-11-29 23:19:46 +00:00
Evan Cheng 28a9e9b230 Custom lower READCYCLECOUNTER for x86-64.
llvm-svn: 32017
2006-11-29 08:28:13 +00:00