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230 Commits

Author SHA1 Message Date
Evan Cheng
015188ffbc Type of vector extract / insert index operand should be iPTR. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@28796 91177308-0d34-0410-b5e6-96231b3b80d8
 2006-06-15 08:14:54 +00:00
Evan Cheng
b69d113201 Add argument registers to the end of call operand list (partial fix). 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@28783 91177308-0d34-0410-b5e6-96231b3b80d8
 2006-06-14 18:17:40 +00:00
Evan Cheng
b12223e284 Minor compilation speed improvement. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@28736 91177308-0d34-0410-b5e6-96231b3b80d8
 2006-06-09 06:24:42 +00:00
Evan Cheng
e8bd0a332a Added X86FunctionInfo subclass of MachineFunction to record whether the 
function that is being lowered is forced to use FP. Currently this is only
true for main() / Cygwin.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@28703 91177308-0d34-0410-b5e6-96231b3b80d8
 2006-06-06 23:30:24 +00:00
Evan Cheng
2675534b7f Typos 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@28617 91177308-0d34-0410-b5e6-96231b3b80d8
 2006-06-01 05:53:27 +00:00
Evan Cheng
04b2562502 Remove a warning 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@28607 91177308-0d34-0410-b5e6-96231b3b80d8
 2006-06-01 00:30:39 +00:00
Evan Cheng
8f692e2457 Remove dead code. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@28581 91177308-0d34-0410-b5e6-96231b3b80d8
 2006-05-31 00:50:42 +00:00
Evan Cheng
6848be1a27 Change RET node to include signness information of the return values. i.e. 
RET chain, value1, sign1, value2, sign2, ...


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@28510 91177308-0d34-0410-b5e6-96231b3b80d8
 2006-05-26 23:10:12 +00:00
Evan Cheng
3fddf241d8 Vector argument must be passed in memory location aligned on 16-byte boundary. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@28505 91177308-0d34-0410-b5e6-96231b3b80d8
 2006-05-26 20:37:47 +00:00
Evan Cheng
1d6a9b3b6c Mac OS X ABI document lied. The first four XMM registers are used to pass 
vector arguments, not three.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@28504 91177308-0d34-0410-b5e6-96231b3b80d8
 2006-05-26 19:22:06 +00:00
Evan Cheng
052fb5110f Minor update to make the code more clear 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@28499 91177308-0d34-0410-b5e6-96231b3b80d8
 2006-05-26 18:39:59 +00:00
Evan Cheng
f9d62dc6e5 Update more comments. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@28498 91177308-0d34-0410-b5e6-96231b3b80d8
 2006-05-26 18:37:16 +00:00
Evan Cheng
f9ff7c54be Fix some comments. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@28497 91177308-0d34-0410-b5e6-96231b3b80d8
 2006-05-26 18:25:43 +00:00
Evan Cheng
6f707999a1 No need to handle illegal types. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@28496 91177308-0d34-0410-b5e6-96231b3b80d8
 2006-05-26 18:22:49 +00:00
Evan Cheng
cc1fc220a0 Consistency 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@28488 91177308-0d34-0410-b5e6-96231b3b80d8
 2006-05-25 23:31:23 +00:00
Evan Cheng
25e71d10a0 Some clean up. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@28483 91177308-0d34-0410-b5e6-96231b3b80d8
 2006-05-25 22:38:31 +00:00
Evan Cheng
a9bb445db0 Remove some dead code. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@28481 91177308-0d34-0410-b5e6-96231b3b80d8
 2006-05-25 22:25:52 +00:00
Evan Cheng
6b5783d0b1 Build breakage. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@28475 91177308-0d34-0410-b5e6-96231b3b80d8
 2006-05-25 18:56:34 +00:00
Evan Cheng
32fe1035a7 Switch X86 over to a call-selection model where the lowering code creates 
the copyto/fromregs instead of making the X86ISD::CALL selection code create
them.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@28463 91177308-0d34-0410-b5e6-96231b3b80d8
 2006-05-25 00:59:30 +00:00
Chris Lattner
c6d0567324 Fix file header comment 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@28441 91177308-0d34-0410-b5e6-96231b3b80d8
 2006-05-23 23:20:42 +00:00
Evan Cheng
4db3af3511 Better way to check for vararg. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@28440 91177308-0d34-0410-b5e6-96231b3b80d8
 2006-05-23 21:08:24 +00:00
Evan Cheng
25caf63cd2 Remove PreprocessCCCArguments and PreprocessFastCCArguments now that 
FORMAL_ARGUMENTS nodes include a token operand.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@28439 91177308-0d34-0410-b5e6-96231b3b80d8
 2006-05-23 21:06:34 +00:00
Chris Lattner
2d2970905c Implement an annoying part of the Darwin/X86 abi: the callee of a struct 
return argument pops the hidden struct pointer if present, not the caller.

For example, in this testcase:

struct X { int D, E, F, G; };
struct X bar() {
  struct X a;
  a.D = 0;
  a.E = 1;
  a.F = 2;
  a.G = 3;
  return a;
}
void foo(struct X *P) {
  *P = bar();
}

We used to emit:

_foo:
        subl $28, %esp
        movl 32(%esp), %eax
        movl %eax, (%esp)
        call _bar
        addl $28, %esp
        ret
_bar:
        movl 4(%esp), %eax
        movl $0, (%eax)
        movl $1, 4(%eax)
        movl $2, 8(%eax)
        movl $3, 12(%eax)
        ret

This is correct on Linux/X86 but not Darwin/X86.  With this patch, we now
emit:

_foo:
        subl $28, %esp
        movl 32(%esp), %eax
        movl %eax, (%esp)
        call _bar
***     addl $24, %esp
        ret
_bar:
        movl 4(%esp), %eax
        movl $0, (%eax)
        movl $1, 4(%eax)
        movl $2, 8(%eax)
        movl $3, 12(%eax)
***     ret $4

For the record, GCC emits (which is functionally equivalent to our new code):

_bar:
        movl    4(%esp), %eax
        movl    $3, 12(%eax)
        movl    $2, 8(%eax)
        movl    $1, 4(%eax)
        movl    $0, (%eax)
        ret     $4
_foo:
        pushl   %esi
        subl    $40, %esp
        movl    48(%esp), %esi
        leal    16(%esp), %eax
        movl    %eax, (%esp)
        call    _bar
        subl    $4, %esp
        movl    16(%esp), %eax
        movl    %eax, (%esi)
        movl    20(%esp), %eax
        movl    %eax, 4(%esi)
        movl    24(%esp), %eax
        movl    %eax, 8(%esi)
        movl    28(%esp), %eax
        movl    %eax, 12(%esi)
        addl    $40, %esp
        popl    %esi
        ret

This fixes SingleSource/Benchmarks/CoyoteBench/fftbench with LLC and the
JIT, and fixes the X86-backend portion of PR729.  The CBE still needs to
be updated.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@28438 91177308-0d34-0410-b5e6-96231b3b80d8
 2006-05-23 18:50:38 +00:00
Chris Lattner
cdbaeb52ae CSRet allows varargs 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@28409 91177308-0d34-0410-b5e6-96231b3b80d8
 2006-05-19 21:34:04 +00:00
Evan Cheng
4ac8974d02 Should pass by reference. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@28357 91177308-0d34-0410-b5e6-96231b3b80d8
 2006-05-17 19:07:40 +00:00
Chris Lattner
aa9406b0c4 Implement the custom lowering hook right, returning values for all of the 
arguments at once.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@28327 91177308-0d34-0410-b5e6-96231b3b80d8
 2006-05-16 17:14:26 +00:00
Chris Lattner
e7746c9084 Fix a bug I introduced yesterday, which broke functions with *no* arguments. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@28326 91177308-0d34-0410-b5e6-96231b3b80d8
 2006-05-16 17:08:35 +00:00
Evan Cheng
069287d460 X86 integer register classes naming changes. Make them consistent with FP, vector classes. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@28324 91177308-0d34-0410-b5e6-96231b3b80d8
 2006-05-16 07:21:53 +00:00
Chris Lattner
8c0c10c2b9 Add a chain to FORMAL_ARGUMENTS. This is a minimal port of the X86 backend, 
it doesn't currently use/maintain the chain properly.  Also, make the
X86ISelLowering.cpp file 80-col clean.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@28320 91177308-0d34-0410-b5e6-96231b3b80d8
 2006-05-16 06:45:34 +00:00
Chris Lattner
03ea4c8326 Dead variable 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@28265 91177308-0d34-0410-b5e6-96231b3b80d8
 2006-05-12 21:12:22 +00:00
Chris Lattner
80a7ecc923 Teach the X86 backend about non-i32 inline asm register classes. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@28139 91177308-0d34-0410-b5e6-96231b3b80d8
 2006-05-06 00:29:37 +00:00
Chris Lattner
bd04aa5796 Teach the code generator to use cvtss2sd as extload f32 -> f64 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@28131 91177308-0d34-0410-b5e6-96231b3b80d8
 2006-05-05 21:35:18 +00:00
Owen Anderson
a69571c799 Refactor TargetMachine, pushing handling of TargetData into the target-specific subclasses. This has one caller-visible change: getTargetData() now returns a pointer instead of a reference. 
This fixes PR 759.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@28074 91177308-0d34-0410-b5e6-96231b3b80d8
 2006-05-03 01:29:57 +00:00
Evan Cheng
347d5f789a Initial caller side support (for CCC only, not FastCC) of 128-bit vector 
passing by value.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@28015 91177308-0d34-0410-b5e6-96231b3b80d8
 2006-04-28 21:29:37 +00:00
Evan Cheng
43f3bd310b Implement four-wide shuffle with 2 shufps if no more than two elements come 
from each vector. e.g.
        shuffle(G1, G2, 7, 1, 5, 2)
==>
        movaps _G2, %xmm0
        shufps $151, _G1, %xmm0
        shufps $216, %xmm0, %xmm0


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@28011 91177308-0d34-0410-b5e6-96231b3b80d8
 2006-04-28 07:03:38 +00:00
Evan Cheng
020c41f21e TargetLowering::LowerArguments should return a VBIT_CONVERT of 
FORMAL_ARGUMENTS SDOperand in the return result vector.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@28009 91177308-0d34-0410-b5e6-96231b3b80d8
 2006-04-28 05:25:15 +00:00
Evan Cheng
fea89c14ec Make x86 isel lowering produce tailcall nodes. They are match to normal calls 
for now.

Patch contributed by Alexander Friedman.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@27994 91177308-0d34-0410-b5e6-96231b3b80d8
 2006-04-27 08:40:39 +00:00
Evan Cheng
2fdd95eee7 Support for passing 128-bit vector arguments via XMM registers. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@27992 91177308-0d34-0410-b5e6-96231b3b80d8
 2006-04-27 08:31:10 +00:00
Evan Cheng
5fb03ce905 Oops 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@27989 91177308-0d34-0410-b5e6-96231b3b80d8
 2006-04-27 05:44:50 +00:00
Evan Cheng
85e3800e42 Bug fix: not updating NumIntRegs. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@27988 91177308-0d34-0410-b5e6-96231b3b80d8
 2006-04-27 05:35:28 +00:00
Evan Cheng
eda65fa20b - Clean up formal argument lowering code. Prepare for vector pass by value work. 
- Fixed vararg support.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@27985 91177308-0d34-0410-b5e6-96231b3b80d8
 2006-04-27 01:32:22 +00:00
Evan Cheng
9191dbba8e Fix fastcc failures. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@27980 91177308-0d34-0410-b5e6-96231b3b80d8
 2006-04-26 18:21:31 +00:00
Evan Cheng
1bc7804e4c Switching over FORMAL_ARGUMENTS mechanism to lower call arguments. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@27975 91177308-0d34-0410-b5e6-96231b3b80d8
 2006-04-26 01:20:17 +00:00
Evan Cheng
0db9fe6775 Separate LowerOperation() into multiple functions, one per opcode. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@27972 91177308-0d34-0410-b5e6-96231b3b80d8
 2006-04-25 20:13:52 +00:00
Evan Cheng
37d1d9bc66 Special case handling two wide build_vector(0, x). 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@27961 91177308-0d34-0410-b5e6-96231b3b80d8
 2006-04-24 22:58:52 +00:00
Evan Cheng
c78d3b43f5 A little bit more build_vector enhancement for v8i16 cases. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@27959 91177308-0d34-0410-b5e6-96231b3b80d8
 2006-04-24 18:01:45 +00:00
Evan Cheng
9293451e3f MOVL shuffle (i.e. movd or movss / movsd from memory) of undef, V2 == V2 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@27953 91177308-0d34-0410-b5e6-96231b3b80d8
 2006-04-23 06:35:19 +00:00
Nate Begeman
37efe67645 JumpTable support! What this represents is working asm and jit support for 
x86 and ppc for 100% dense switch statements when relocations are non-PIC.
This support will be extended and enhanced in the coming days to support
PIC, and less dense forms of jump tables.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@27947 91177308-0d34-0410-b5e6-96231b3b80d8
 2006-04-22 18:53:45 +00:00
Evan Cheng
1900c012f5 Don't do all the lowering stuff for 2-wide build_vector's. Also, minor optimization for shuffle of undef. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@27946 91177308-0d34-0410-b5e6-96231b3b80d8
 2006-04-22 08:34:05 +00:00
Evan Cheng
a083af14c8 Fix a performance regression. Use {p}shuf* when there are only two distinct elements in a build_vector. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@27945 91177308-0d34-0410-b5e6-96231b3b80d8
 2006-04-22 06:21:46 +00:00