Dan Gohman
ea859be53c
Move ComputeMaskedBits, MaskedValueIsZero, and ComputeNumSignBits from
...
TargetLowering to SelectionDAG so that they have more convenient
access to the current DAG, in preparation for the ValueType routines
being changed from standalone functions to members of SelectionDAG for
the pre-legalize vector type changes.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@37704 91177308-0d34-0410-b5e6-96231b3b80d8
2007-06-22 14:59:07 +00:00
Chris Lattner
52387be1e0
If a function is vararg, never pass inreg arguments in registers. Thanks to
...
Anton for half of this patch.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@37641 91177308-0d34-0410-b5e6-96231b3b80d8
2007-06-19 00:13:10 +00:00
Evan Cheng
49892af264
Look for VECTOR_SHUFFLE that's identity operation on either LHS or RHS. This can happen before DAGCombiner catches it.
...
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@37636 91177308-0d34-0410-b5e6-96231b3b80d8
2007-06-19 00:02:56 +00:00
Bill Wendling
a9e64f6f2d
Revert patch. It regresses:
...
define double @test2(i64 %A) {
%B = bitcast i64 %A to double
ret double %B
}
$ llvm-as < t.ll | llc -march=x86-64
before:
.align 4
.globl _test2
_test2:
movd %rdi, %xmm0
ret
after:
_test2:
subq $8, %rsp
movq %rdi, (%rsp)
movsd (%rsp), %xmm0
addq $8, %rsp
ret
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@37617 91177308-0d34-0410-b5e6-96231b3b80d8
2007-06-16 23:57:15 +00:00
Bill Wendling
e81369f2a5
Fix a failure to bit_convert from integer GPR to MMX register.
...
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@37611 91177308-0d34-0410-b5e6-96231b3b80d8
2007-06-16 06:17:31 +00:00
Dan Gohman
51eaa86758
Rename MVT::getVectorBaseType to MVT::getVectorElementType.
...
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@37579 91177308-0d34-0410-b5e6-96231b3b80d8
2007-06-14 22:58:02 +00:00
Chris Lattner
fdbe720416
fix x86-64 mmx calling convention for real, which passes in integer gprs.
...
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@37534 91177308-0d34-0410-b5e6-96231b3b80d8
2007-06-09 05:08:10 +00:00
Chris Lattner
6b7c21cc30
fix mmx handling bug
...
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@37533 91177308-0d34-0410-b5e6-96231b3b80d8
2007-06-09 05:01:50 +00:00
Dan Gohman
237898ac1f
Add explicit qualification for namespace MVT members.
...
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@37320 91177308-0d34-0410-b5e6-96231b3b80d8
2007-05-24 14:33:05 +00:00
Dan Gohman
fa0f77d9b7
Use MVT::FIRST_VECTOR_VALUETYPE and MVT::LAST_VECTOR_VALUETYPE.
...
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@37234 91177308-0d34-0410-b5e6-96231b3b80d8
2007-05-18 18:44:07 +00:00
Evan Cheng
213d2cf94f
Fix a bogus check that prevented folding VECTOR_SHUFFLE to UNDEF; add an optimization to fold VECTOR_SHUFFLE to a zero vector.
...
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@37173 91177308-0d34-0410-b5e6-96231b3b80d8
2007-05-17 18:45:50 +00:00
Chris Lattner
07c70cd866
This is the correct fix for PR1427. This fixes mmx-shuffle.ll and doesn't
...
cause other regressions.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@37160 91177308-0d34-0410-b5e6-96231b3b80d8
2007-05-17 17:13:13 +00:00
Anton Korobeynikov
f840202953
Revert patch for PR1427. It breaks almost all vector tests.
...
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@37159 91177308-0d34-0410-b5e6-96231b3b80d8
2007-05-17 07:50:14 +00:00
Chris Lattner
da66472ea6
Fix PR1427 and test/CodeGen/X86/mmx-shuffle.ll
...
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@37141 91177308-0d34-0410-b5e6-96231b3b80d8
2007-05-17 03:29:42 +00:00
Chris Lattner
709fd414e2
fix subtle bugs in inline asm operand selection
...
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@37065 91177308-0d34-0410-b5e6-96231b3b80d8
2007-05-15 01:28:08 +00:00
Chris Lattner
dc43a88b81
Fix two classes of bugs:
...
1. x86 backend rejected (&gv+c) for the 'i' constraint when in static mode.
2. the matcher didn't correctly reject and accept some global addresses.
the right predicate is GVRequiresExtraLoad, not "relomodel = pic".
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@36670 91177308-0d34-0410-b5e6-96231b3b80d8
2007-05-03 16:52:29 +00:00
Anton Korobeynikov
ce3b46552a
Emit correct register move information in eh frames for X86. This allows Shootout-C++/except to pass on x86/linux
...
with non-llvm-compiled (e.g. "native") unwind runtime.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@36647 91177308-0d34-0410-b5e6-96231b3b80d8
2007-05-02 19:53:33 +00:00
Bill Wendling
2f9bb1a0a4
Support for the special case of a vector with the canonical form:
...
vector_shuffle v1, v2, <2, 6, 3, 7>
I.e.
vector_shuffle v, undef, <2, 2, 3, 3>
MMX only has a shuffle for v4i16 vectors. It needs to use the unpackh for
this type of operation.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@36403 91177308-0d34-0410-b5e6-96231b3b80d8
2007-04-24 21:16:55 +00:00
Lauro Ramos Venancio
7d2cc2b983
X86 TLS: fix and optimize the implementation of "initial exec" model.
...
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@36355 91177308-0d34-0410-b5e6-96231b3b80d8
2007-04-22 22:50:52 +00:00
Lauro Ramos Venancio
2c5c111b6c
X86 TLS: Implement review feedback.
...
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@36318 91177308-0d34-0410-b5e6-96231b3b80d8
2007-04-21 20:56:26 +00:00
Lauro Ramos Venancio
b3a0417cad
Implement "general dynamic", "initial exec" and "local exec" TLS models for
...
X86 32 bits.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@36283 91177308-0d34-0410-b5e6-96231b3b80d8
2007-04-20 21:38:10 +00:00
Anton Korobeynikov
e060b5385f
Add comment
...
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@36213 91177308-0d34-0410-b5e6-96231b3b80d8
2007-04-17 19:34:00 +00:00
Chris Lattner
d15dff24c6
rename X86FunctionInfo to X86MachineFunctionInfo to match the header file
...
it is defined in.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@36196 91177308-0d34-0410-b5e6-96231b3b80d8
2007-04-17 17:21:52 +00:00
Anton Korobeynikov
57fc00d5cf
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? :)
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@36195 91177308-0d34-0410-b5e6-96231b3b80d8
2007-04-17 09:20:00 +00:00
Anton Korobeynikov
bed2946a96
Removed tabs everywhere except autogenerated & external files. Add make
...
target for tabs checking.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@36146 91177308-0d34-0410-b5e6-96231b3b80d8
2007-04-16 18:10:23 +00:00
Chris Lattner
6c284d716e
Fix mmx paddq, add support for the 'y' register class, though it isn't tested.
...
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@35940 91177308-0d34-0410-b5e6-96231b3b80d8
2007-04-12 04:14:49 +00:00
Chris Lattner
eb8c74ddf2
remove some dead hooks
...
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@35845 91177308-0d34-0410-b5e6-96231b3b80d8
2007-04-09 23:31:19 +00:00
Chris Lattner
b445d0cbb9
remove some dead target hooks, subsumed by isLegalAddressingMode
...
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@35840 91177308-0d34-0410-b5e6-96231b3b80d8
2007-04-09 22:27:04 +00:00
Chris Lattner
0f65cad57f
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 $0x80 ; pop %ebx
# InlineAsm End
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@35804 91177308-0d34-0410-b5e6-96231b3b80d8
2007-04-09 05:49:22 +00:00
Chris Lattner
e5a24ec782
implement support for CodeGen/X86/inline-asm-x-scalar.ll:test3 - i32/i64 values
...
used with x constraints.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@35803 91177308-0d34-0410-b5e6-96231b3b80d8
2007-04-09 05:31:48 +00:00
Chris Lattner
ad043e85f8
implement CodeGen/X86/inline-asm-x-scalar.ll
...
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@35799 91177308-0d34-0410-b5e6-96231b3b80d8
2007-04-09 05:11:28 +00:00
Chris Lattner
c9addb7488
implement the new addressing mode description hook.
...
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@35521 91177308-0d34-0410-b5e6-96231b3b80d8
2007-03-30 23:15:24 +00:00
Bill Wendling
a80d7bd665
Remove cruft I put in there...
...
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@35394 91177308-0d34-0410-b5e6-96231b3b80d8
2007-03-28 01:02:54 +00:00
Bill Wendling
826f36ff80
Unbreak mmx arithmetic. It was barfing trying to do v8i8 arithmetic.
...
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@35392 91177308-0d34-0410-b5e6-96231b3b80d8
2007-03-28 00:57:11 +00:00
Bill Wendling
ccc44add81
Fix so that pandn is emitted instead of an xor/and combo. Add integer
...
comparison operators.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@35385 91177308-0d34-0410-b5e6-96231b3b80d8
2007-03-27 20:22:40 +00:00
Bill Wendling
ab5b49d92e
Promote to v1i64 type...
...
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@35353 91177308-0d34-0410-b5e6-96231b3b80d8
2007-03-26 08:03:33 +00:00
Bill Wendling
eebc8a1bc5
Add support for the v1i64 type. This makes better code for this:
...
#include <mmintrin.h>
extern __m64 C;
void baz(__v2si *A, __v2si *B)
{
*A = C;
_mm_empty();
}
We get this:
_baz:
call "L1$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
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@35351 91177308-0d34-0410-b5e6-96231b3b80d8
2007-03-26 07:53:08 +00:00
Chris Lattner
4234f57fa0
switch TargetLowering::getConstraintType to take the entire constraint,
...
not just the first letter. No functionality change.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@35322 91177308-0d34-0410-b5e6-96231b3b80d8
2007-03-25 02:14:49 +00:00
Chris Lattner
188b9fe834
enforce the proper range for the i386 N constraint.
...
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@35319 91177308-0d34-0410-b5e6-96231b3b80d8
2007-03-25 01:57:35 +00:00
Bill Wendling
a348c56fde
Support added for shifts and unpacking MMX instructions.
...
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@35266 91177308-0d34-0410-b5e6-96231b3b80d8
2007-03-22 18:42:45 +00:00
Dale Johannesen
fa4bce2b76
repair x86 performance, dejagnu problems from previous change
...
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@35245 91177308-0d34-0410-b5e6-96231b3b80d8
2007-03-21 21:51:52 +00:00
Chris Lattner
d435dbcbf9
fix a warning
...
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@35152 91177308-0d34-0410-b5e6-96231b3b80d8
2007-03-19 00:39:32 +00:00
Devang Patel
84f7fd2483
Support 'I' inline asm constraint.
...
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@35129 91177308-0d34-0410-b5e6-96231b3b80d8
2007-03-17 00:13:28 +00:00
Bill Wendling
1b7a81d3ae
And now support for MMX logical operations.
...
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@35125 91177308-0d34-0410-b5e6-96231b3b80d8
2007-03-16 09:44:46 +00:00
Bill Wendling
74027e98f1
Multiplication support for MMX.
...
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@35118 91177308-0d34-0410-b5e6-96231b3b80d8
2007-03-15 21:24:36 +00:00
Evan Cheng
ba693005e9
Under X86-64 large code model, do not emit 32-bit pc relative calls.
...
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@35108 91177308-0d34-0410-b5e6-96231b3b80d8
2007-03-14 22:11:11 +00:00
Evan Cheng
a8a155e77f
More flexible TargetLowering LSR hooks for testing whether an immediate is
...
a legal target address immediate or scale.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@35073 91177308-0d34-0410-b5e6-96231b3b80d8
2007-03-12 23:28:50 +00:00
Evan Cheng
37e8856f74
Stupid bug: SSE2 supports v2i64 add / sub.
...
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@35070 91177308-0d34-0410-b5e6-96231b3b80d8
2007-03-12 22:58:52 +00:00
Bill Wendling
c1fb0473ed
Adding more arithmetic operators to MMX. This is an almost exact copy of
...
the addition. Please let me know if you have suggestions.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@35055 91177308-0d34-0410-b5e6-96231b3b80d8
2007-03-10 09:57:05 +00:00
Bill Wendling
2f88dcdfb3
Added "padd*" support for MMX. Added MMX move stuff to X86InstrInfo so that
...
moves, loads, etc. are recognized.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@35031 91177308-0d34-0410-b5e6-96231b3b80d8
2007-03-08 22:09:11 +00:00
Anton Korobeynikov
d0b82b301d
Refactoring of formal parameter flags. Enable properly use of
...
zext/sext/aext stuff.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@35008 91177308-0d34-0410-b5e6-96231b3b80d8
2007-03-07 16:25:09 +00:00
Bill Wendling
bc9bffa27b
Properly support v8i8 and v4i16 types. It now converts them to v2i32 for
...
load and stores.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@35002 91177308-0d34-0410-b5e6-96231b3b80d8
2007-03-07 05:43:18 +00:00
Bill Wendling
a31bd27f12
Add LOAD/STORE support for MMX.
...
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@34978 91177308-0d34-0410-b5e6-96231b3b80d8
2007-03-06 18:53:42 +00:00
Anton Korobeynikov
1d9baccc9b
Use new SDIselParamAttr enumeration. This removes "magick" constants
...
from formal attributes' flags processing.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@34963 91177308-0d34-0410-b5e6-96231b3b80d8
2007-03-06 08:12:33 +00:00
Evan Cheng
ae6421935b
X86-64 VACOPY needs custom expansion. va_list is a struct { i32, i32, i8*, i8* }.
...
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@34857 91177308-0d34-0410-b5e6-96231b3b80d8
2007-03-02 23:16:35 +00:00
Anton Korobeynikov
f7dcfa81c5
Simplify things
...
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@34849 91177308-0d34-0410-b5e6-96231b3b80d8
2007-03-02 21:50:27 +00:00
Chris Lattner
82932a5e4a
argument lowering should copy from the vreg shadows of live-in arguments
...
passed in registers, not directly from the pregs themselves.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@34838 91177308-0d34-0410-b5e6-96231b3b80d8
2007-03-02 05:12:29 +00:00
Anton Korobeynikov
9dd9abd87f
Ensure that fastcall'ed function is correctly mangled & stack is
...
properly aligned
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@34788 91177308-0d34-0410-b5e6-96231b3b80d8
2007-03-01 16:29:22 +00:00
Chris Lattner
eac6607d7c
remove dead option
...
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@34754 91177308-0d34-0410-b5e6-96231b3b80d8
2007-02-28 18:39:53 +00:00
Chris Lattner
e32bbf61c0
use high-level functions in CCState
...
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@34739 91177308-0d34-0410-b5e6-96231b3b80d8
2007-02-28 07:09:55 +00:00
Chris Lattner
638402b253
make use of helper functions in CCState for analyzing formals and calls.
...
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@34737 91177308-0d34-0410-b5e6-96231b3b80d8
2007-02-28 07:00:42 +00:00
Chris Lattner
f5d280a0a6
switch LowerFastCCCallTo over to using the new fastcall description.
...
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@34734 91177308-0d34-0410-b5e6-96231b3b80d8
2007-02-28 06:26:33 +00:00
Chris Lattner
fc664c1bc0
switch LowerFastCCArguments over to using the autogenerated Fastcall description.
...
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@34733 91177308-0d34-0410-b5e6-96231b3b80d8
2007-02-28 06:21:19 +00:00
Chris Lattner
fcf1a3de7a
rearrange code
...
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@34731 91177308-0d34-0410-b5e6-96231b3b80d8
2007-02-28 06:10:12 +00:00
Chris Lattner
2db39b865e
remove fastcc (not fastcall) support
...
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@34730 91177308-0d34-0410-b5e6-96231b3b80d8
2007-02-28 06:05:16 +00:00
Chris Lattner
f39f771b02
switch LowerCCCArguments over to using autogenerated CC.
...
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@34729 91177308-0d34-0410-b5e6-96231b3b80d8
2007-02-28 05:46:49 +00:00
Chris Lattner
c0bdf3460c
simplify sret handling
...
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@34728 91177308-0d34-0410-b5e6-96231b3b80d8
2007-02-28 05:39:26 +00:00
Chris Lattner
423c5f44f8
switch LowerCCCCallTo over to using an autogenerated callingconv
...
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@34727 91177308-0d34-0410-b5e6-96231b3b80d8
2007-02-28 05:31:48 +00:00
Chris Lattner
59ed56b9ee
switch return value passing and the x86-64 calling convention information
...
over to being autogenerated from the X86CallingConv.td file.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@34722 91177308-0d34-0410-b5e6-96231b3b80d8
2007-02-28 04:55:35 +00:00
Chris Lattner
9774c915f1
switch x86-64 return value lowering over to using same mechanism as argument
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lowering uses.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@34657 91177308-0d34-0410-b5e6-96231b3b80d8
2007-02-27 05:28:59 +00:00
Chris Lattner
13513b7a50
Minor refactoring of CC Lowering interfaces
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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@34656 91177308-0d34-0410-b5e6-96231b3b80d8
2007-02-27 05:13:54 +00:00
Chris Lattner
362e98a5f5
move CC Lowering stuff to its own public interface
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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@34655 91177308-0d34-0410-b5e6-96231b3b80d8
2007-02-27 04:43:02 +00:00
Chris Lattner
9c71ab77cd
refactor x86-64 argument lowering yet again, this time eliminating templates,
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'clients', etc, and adding CCValAssign instead.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@34654 91177308-0d34-0410-b5e6-96231b3b80d8
2007-02-27 04:18:15 +00:00
Chris Lattner
6e50f8cfe9
switch to smallvector
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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@34633 91177308-0d34-0410-b5e6-96231b3b80d8
2007-02-26 07:59:53 +00:00
Chris Lattner
14dd4c9735
initial hack at splitting the x86-64 calling convention info out from the
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mechanics that process it. I'm still not happy with this, but it's a step
in the right direction.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@34631 91177308-0d34-0410-b5e6-96231b3b80d8
2007-02-26 07:50:02 +00:00
Chris Lattner
cc7b07a0ff
the truncate must always be done, it's only the assert that is conditional.
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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@34628 91177308-0d34-0410-b5e6-96231b3b80d8
2007-02-26 05:21:05 +00:00
Chris Lattner
df5cdb5288
in X86-64 CCC, i8/i16 arguments are already properly zext/sext'd on input.
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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
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@34623 91177308-0d34-0410-b5e6-96231b3b80d8
2007-02-26 03:18:56 +00:00
Chris Lattner
c30654cc96
Fix an X86-64 abi bug. We now compile:
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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
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@34615 91177308-0d34-0410-b5e6-96231b3b80d8
2007-02-25 23:10:46 +00:00
Chris Lattner
7e22977c0f
fix CodeGen/X86/2007-02-25-FastCCStack.ll, a regression from my patch last
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night: fastcc returns should only go in XMM0 if we have SSE2 or above.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@34613 91177308-0d34-0410-b5e6-96231b3b80d8
2007-02-25 22:23:46 +00:00
Chris Lattner
5e265b29ea
fastcc functions that return double values now return them in xmm0 on x86-32.
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This implements CodeGen/X86/fp-stack-ret.ll:test[23]
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@34592 91177308-0d34-0410-b5e6-96231b3b80d8
2007-02-25 09:31:16 +00:00
Chris Lattner
4dfccf4b48
allow vectors to be passed to stdcall/fastcall functions
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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@34590 91177308-0d34-0410-b5e6-96231b3b80d8
2007-02-25 09:14:25 +00:00
Chris Lattner
2a9bdd74f2
move LowerRET into the 'Return Value Calling Convention Implementation'
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section of the file.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@34589 91177308-0d34-0410-b5e6-96231b3b80d8
2007-02-25 09:12:39 +00:00
Chris Lattner
339b439d47
make all Lower*CallTo implementations use LowerCallResult to handle their
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result value stuff. This eliminates a bunch of duplicated code and now
GetRetValueLocs is the sole place that decides where a value is returned.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@34588 91177308-0d34-0410-b5e6-96231b3b80d8
2007-02-25 09:10:05 +00:00
Chris Lattner
09c75a4372
pass the calling convention into Lower*CallTo, instead of using ad-hoc flags.
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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@34587 91177308-0d34-0410-b5e6-96231b3b80d8
2007-02-25 09:06:15 +00:00
Chris Lattner
3085e15117
factor a bunch of code out of LowerCCCCallTo into a new LowerCallResult
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function. This function now uses GetRetValueLocs to determine *where*
the result values are located and concerns itself with *how* to pull the
values out.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@34586 91177308-0d34-0410-b5e6-96231b3b80d8
2007-02-25 08:59:22 +00:00
Chris Lattner
2b02a4409f
move some code around, pass in calling conv, even though it is unused
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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@34585 91177308-0d34-0410-b5e6-96231b3b80d8
2007-02-25 08:29:00 +00:00
Chris Lattner
cb18656734
simplify result value lowering by splitting the selection of *where* to return
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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.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@34582 91177308-0d34-0410-b5e6-96231b3b80d8
2007-02-25 08:15:11 +00:00
Chris Lattner
7d53a1c45e
make void-return not a special case
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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@34579 91177308-0d34-0410-b5e6-96231b3b80d8
2007-02-25 07:18:38 +00:00
Chris Lattner
5a88b837f2
eliminate a bunch more temporary vectors from X86 lowering.
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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@34578 91177308-0d34-0410-b5e6-96231b3b80d8
2007-02-25 07:10:00 +00:00
Chris Lattner
d96d072332
eliminate temporary vectors created during X86 lowering.
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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@34577 91177308-0d34-0410-b5e6-96231b3b80d8
2007-02-25 06:40:16 +00:00
Chris Lattner
9cb9626abf
remove std::vector's in RET lowering.
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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@34576 91177308-0d34-0410-b5e6-96231b3b80d8
2007-02-25 06:21:57 +00:00
Jim Laskey
2ad9f17fee
Simplify lowering and selection of exception ops.
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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@34488 91177308-0d34-0410-b5e6-96231b3b80d8
2007-02-22 14:56:36 +00:00
Jim Laskey
62819f3144
Support to provide exception and selector registers.
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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@34482 91177308-0d34-0410-b5e6-96231b3b80d8
2007-02-21 22:54:50 +00:00
Evan Cheng
f46847172a
ELF / PIC requires GOT be in the EBX register during calls via PLT GOT pointer.
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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.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@34470 91177308-0d34-0410-b5e6-96231b3b80d8
2007-02-21 21:18:14 +00:00
Anton Korobeynikov
b25fe82671
Fixed uninitialized stuff inside LegalizeDAG. Fortunately, the only
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affected part is codegen of "memove" inside x86 backend. This fixes
PR1144
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@33752 91177308-0d34-0410-b5e6-96231b3b80d8
2007-02-01 08:39:52 +00:00
Nate Begeman
bcc5f36765
Finish off bug 680, allowing targets to custom lower frame and return
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address nodes.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@33636 91177308-0d34-0410-b5e6-96231b3b80d8
2007-01-29 22:58:52 +00:00
Nick Lewycky
5310897884
Fix compile error "jump to case label crosses initialization".
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What compiler are people using that accepts this code?
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@33603 91177308-0d34-0410-b5e6-96231b3b80d8
2007-01-28 15:39:16 +00:00
Anton Korobeynikov
b10308e440
Propagate changes from my local tree. This patch includes:
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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.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@33597 91177308-0d34-0410-b5e6-96231b3b80d8
2007-01-28 13:31:35 +00:00
Jim Laskey
1ee2925742
Make LABEL a builtin opcode.
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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@33537 91177308-0d34-0410-b5e6-96231b3b80d8
2007-01-26 14:34:52 +00:00
Evan Cheng
706535db86
Linux GOT indirect reference is only necessary in PIC mode.
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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@33441 91177308-0d34-0410-b5e6-96231b3b80d8
2007-01-22 21:34:25 +00:00