Commit Graph

24954 Commits

Author SHA1 Message Date
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
Evan Cheng
80235d508e -enable-unsafe-fp-math implies -enable-finite-only-fp-math
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@28437 91177308-0d34-0410-b5e6-96231b3b80d8
2006-05-23 18:18:46 +00:00
Vladimir Prus
1fd8a4f65d Make class comment visible in Doxygen.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@28436 91177308-0d34-0410-b5e6-96231b3b80d8
2006-05-23 15:32:15 +00:00
Vladimir Prus
124729155d Fix missing include
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@28435 91177308-0d34-0410-b5e6-96231b3b80d8
2006-05-23 13:43:15 +00:00
Evan Cheng
13fcf6f811 Added a test case for FP equality check.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@28434 91177308-0d34-0410-b5e6-96231b3b80d8
2006-05-23 06:41:23 +00:00
Evan Cheng
f6f9581983 Incorrect SETCC CondCode used for FP comparisons.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@28433 91177308-0d34-0410-b5e6-96231b3b80d8
2006-05-23 06:40:47 +00:00
Evan Cheng
95942d76f4 Added option -enable-finite-only-fp-math. When on, the codegen can assume that
FP arithmetic arguments and results are never NaNs or +=Infs. This includes
ignoring parity flag (PF) when checking for FP equality.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@28432 91177308-0d34-0410-b5e6-96231b3b80d8
2006-05-23 06:39:12 +00:00
Rafael Espindola
4b442b528a implement minimal versions of
ARMAsmPrinter::runOnMachineFunction
LowerFORMAL_ARGUMENTS
ARMInstrInfo::isMoveInstr


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@28431 91177308-0d34-0410-b5e6-96231b3b80d8
2006-05-23 02:48:20 +00:00
Chris Lattner
eb82da891c Describe how to add a custom test.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@28430 91177308-0d34-0410-b5e6-96231b3b80d8
2006-05-23 01:40:20 +00:00
Chris Lattner
792321a6b1 Wrap long lines fix typo
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@28429 91177308-0d34-0410-b5e6-96231b3b80d8
2006-05-23 01:25:11 +00:00
Evan Cheng
435bcd7f5f A isel deficiency.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@28427 91177308-0d34-0410-b5e6-96231b3b80d8
2006-05-22 05:54:49 +00:00
Reid Spencer
0fa145d8b8 For PR784:
Support Win32 platforms for llvm-gcc path. Patch by Anton Korobeynikov


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@28426 91177308-0d34-0410-b5e6-96231b3b80d8
2006-05-21 10:40:20 +00:00
Evan Cheng
3c380e71e1 Back out indirect branch load folding hack. It broke some tests.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@28425 91177308-0d34-0410-b5e6-96231b3b80d8
2006-05-21 06:28:50 +00:00
Chris Lattner
e8263e6437 Add a note
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@28424 91177308-0d34-0410-b5e6-96231b3b80d8
2006-05-21 03:57:07 +00:00
Owen Anderson
bcd8a8264e Make TargetData strings less redundant.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@28423 91177308-0d34-0410-b5e6-96231b3b80d8
2006-05-20 23:28:54 +00:00
Chris Lattner
01859e8853 Silence a bogus gcc warning
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@28422 91177308-0d34-0410-b5e6-96231b3b80d8
2006-05-20 23:14:03 +00:00
Chris Lattner
f489fb24f2 Fix a parsing bug that caused 7 llvm-test regressions on PPC last night.
I'm suprised it didn't cause more!


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@28421 91177308-0d34-0410-b5e6-96231b3b80d8
2006-05-20 21:16:59 +00:00
Evan Cheng
4f7f71de43 - Use of load's chain result should be redirected to load's chain operand.
If it reads the chain result of the call, then the use, callseq_start,
  and call would form a cycle!
- Don't forget handle node replacement!
- There could also be a TokenFactor between the load and the callseq_start.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@28420 91177308-0d34-0410-b5e6-96231b3b80d8
2006-05-20 09:21:39 +00:00
Evan Cheng
0d23bc4666 A new entry
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@28419 91177308-0d34-0410-b5e6-96231b3b80d8
2006-05-20 07:44:53 +00:00
Evan Cheng
6b2e254437 Missing break statements.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@28418 91177308-0d34-0410-b5e6-96231b3b80d8
2006-05-20 07:44:28 +00:00
Evan Cheng
fb914c43ba Remove unused patterns.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@28417 91177308-0d34-0410-b5e6-96231b3b80d8
2006-05-20 01:40:16 +00:00
Evan Cheng
b245d92328 Handle indirect call which folds a load manually. This never matches by
the TableGen generated code since the load's chain result is read by
the callseq_start node.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@28416 91177308-0d34-0410-b5e6-96231b3b80d8
2006-05-20 01:36:52 +00:00
Owen Anderson
8f7f4cc1ae Sparc is big-endian.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@28415 91177308-0d34-0410-b5e6-96231b3b80d8
2006-05-20 00:49:30 +00:00
Owen Anderson
d988b32aba Make all of the TargetMachine subclasses use the new string TargetData methods.
This is part of the on-going work on PR 761.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@28414 91177308-0d34-0410-b5e6-96231b3b80d8
2006-05-20 00:24:56 +00:00
Chris Lattner
a831a6c1c5 new testcase for csretcc
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@28413 91177308-0d34-0410-b5e6-96231b3b80d8
2006-05-19 22:00:54 +00:00
Chris Lattner
0deaab89fe Print csretcc calls like this:
call csretcc void %structret( { sbyte }* %P )

instead of this:

        callcsretcc  void %structret( { sbyte }* %P )


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@28412 91177308-0d34-0410-b5e6-96231b3b80d8
2006-05-19 21:58:52 +00:00
Chris Lattner
ebf8e6cd92 Fix misencoding of calling conventions
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@28411 91177308-0d34-0410-b5e6-96231b3b80d8
2006-05-19 21:57:37 +00:00
Chris Lattner
7dd29aadf9 pretty print csretcc for calls
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@28410 91177308-0d34-0410-b5e6-96231b3b80d8
2006-05-19 21:54:03 +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
Chris Lattner
25f88aa7ad Asmprint csret nicely
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@28408 91177308-0d34-0410-b5e6-96231b3b80d8
2006-05-19 21:29:57 +00:00
Chris Lattner
7546619743 Regenerate
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@28407 91177308-0d34-0410-b5e6-96231b3b80d8
2006-05-19 21:28:53 +00:00
Chris Lattner
515906d106 Add support for parsing csret
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@28406 91177308-0d34-0410-b5e6-96231b3b80d8
2006-05-19 21:28:34 +00:00
Chris Lattner
80105ddf51 csret functions can be varargs (as can target cc's). Verify restrictions on
csret functions.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@28405 91177308-0d34-0410-b5e6-96231b3b80d8
2006-05-19 21:25:17 +00:00
Chris Lattner
91b18484ae Add new calling convention, as documented in LangRef.html
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@28404 91177308-0d34-0410-b5e6-96231b3b80d8
2006-05-19 21:19:02 +00:00
Chris Lattner
5710ce915e New calling convention I will be adding shortly.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@28403 91177308-0d34-0410-b5e6-96231b3b80d8
2006-05-19 21:15:36 +00:00
Chris Lattner
f00f68ad0d Add a note
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@28402 91177308-0d34-0410-b5e6-96231b3b80d8
2006-05-19 21:01:38 +00:00
Chris Lattner
778ae71f37 Add a note
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@28401 91177308-0d34-0410-b5e6-96231b3b80d8
2006-05-19 20:55:31 +00:00
Chris Lattner
c11ab17a8e Split the SSE readme items out into their own README.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@28400 91177308-0d34-0410-b5e6-96231b3b80d8
2006-05-19 20:51:43 +00:00
Chris Lattner
2420d81247 Split FP-stack notes out of the main readme. Next up: splitting out SSE.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@28399 91177308-0d34-0410-b5e6-96231b3b80d8
2006-05-19 20:45:52 +00:00
Chris Lattner
870cf1b715 Move a target-independent note out of the X86 readme.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@28398 91177308-0d34-0410-b5e6-96231b3b80d8
2006-05-19 20:45:08 +00:00
Chris Lattner
de050a7509 Particularly ugly code.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@28397 91177308-0d34-0410-b5e6-96231b3b80d8
2006-05-19 19:41:33 +00:00
Chris Lattner
82743daacf new testcase
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@28396 91177308-0d34-0410-b5e6-96231b3b80d8
2006-05-19 19:34:09 +00:00
Reid Spencer
bc2eba1ca2 Fix a doxygen problem and break lines at 80 columns
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@28395 91177308-0d34-0410-b5e6-96231b3b80d8
2006-05-19 19:09:46 +00:00
Reid Spencer
c773de6d61 Fix some doxygen usage in these headers.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@28394 91177308-0d34-0410-b5e6-96231b3b80d8
2006-05-19 19:07:54 +00:00
Evan Cheng
6de0163201 These can be transformed into lea as well. Not that we use this feature
currently...


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@28393 91177308-0d34-0410-b5e6-96231b3b80d8
2006-05-19 18:43:41 +00:00
Evan Cheng
09e3c80984 - Use exact-width integer types, e.g. int32_t, to avoid confusion.
- Fix a couple of minor bugs in i16immSExt8 and i16immZExt8.
- Added loadiPTR fragment used for indirect jumps and calls.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@28392 91177308-0d34-0410-b5e6-96231b3b80d8
2006-05-19 18:40:54 +00:00
Chris Lattner
6fe8ff48bd Use class tags instead of struct tags. The coding standards specify this
for public classes for improved win32 compatibility.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@28391 91177308-0d34-0410-b5e6-96231b3b80d8
2006-05-19 17:17:12 +00:00
Evan Cheng
fc8feb184e Explicitly specify MOV32mi can only be used store 32-bit GV, etc.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@28390 91177308-0d34-0410-b5e6-96231b3b80d8
2006-05-19 07:30:36 +00:00