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1822 Commits

Author SHA1 Message Date
Evan Cheng
f610c3e318 Consistency 
llvm-svn: 28488
 2006-05-25 23:31:23 +00:00
Evan Cheng
fb5e64ff9e Some clean up. 
llvm-svn: 28483
 2006-05-25 22:38:31 +00:00
Evan Cheng
ee280ac5d0 Remove some dead code. 
llvm-svn: 28481
 2006-05-25 22:25:52 +00:00
Evan Cheng
564c7ac8f6 X86 / Cygwin asm / alignment fixes. 
Patch contributed by Anton Korobeynikov!

llvm-svn: 28480
 2006-05-25 21:59:08 +00:00
Evan Cheng
abb909e3bb Build breakage. 
llvm-svn: 28475
 2006-05-25 18:56:34 +00:00
Evan Cheng
bb17ad5ffa 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.

llvm-svn: 28463
 2006-05-25 00:59:30 +00:00
Evan Cheng
09942d3f8b Assert if InflightSet is not cleared after instruction selecting a BB. 
llvm-svn: 28459
 2006-05-25 00:24:28 +00:00
Evan Cheng
b040dd86af Clear HandleMap and ReplaceMap after instruction selection. Or it may cause 
non-deterministic behavior.

llvm-svn: 28454
 2006-05-24 20:46:25 +00:00
Chris Lattner
f604017e47 Patches to make the LLVM sources more -pedantic clean. Patch provided 
by Anton Korobeynikov!  This is a step towards closing PR786.

llvm-svn: 28447
 2006-05-24 17:04:05 +00:00
Chris Lattner
ac9665d682 Fix file header comment 
llvm-svn: 28441
 2006-05-23 23:20:42 +00:00
Evan Cheng
3ef176507d Better way to check for vararg. 
llvm-svn: 28440
 2006-05-23 21:08:24 +00:00
Evan Cheng
65c3f3f26b Remove PreprocessCCCArguments and PreprocessFastCCArguments now that 
FORMAL_ARGUMENTS nodes include a token operand.

llvm-svn: 28439
 2006-05-23 21:06:34 +00:00
Chris Lattner
9aec97df10 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.

llvm-svn: 28438
 2006-05-23 18:50:38 +00:00
Evan Cheng
c25e986c9f A isel deficiency. 
llvm-svn: 28427
 2006-05-22 05:54:49 +00:00
Evan Cheng
52fde7f5ce Back out indirect branch load folding hack. It broke some tests. 
llvm-svn: 28425
 2006-05-21 06:28:50 +00:00
Owen Anderson
4a78af08aa Make TargetData strings less redundant. 
llvm-svn: 28423
 2006-05-20 23:28:54 +00:00
Evan Cheng
a0bbbba168 - 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.

llvm-svn: 28420
 2006-05-20 09:21:39 +00:00
Evan Cheng
bb6733743e A new entry 
llvm-svn: 28419
 2006-05-20 07:44:53 +00:00
Evan Cheng
95259a0f68 Missing break statements. 
llvm-svn: 28418
 2006-05-20 07:44:28 +00:00
Evan Cheng
550e73a900 Remove unused patterns. 
llvm-svn: 28417
 2006-05-20 01:40:16 +00:00
Evan Cheng
c68ea538e7 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.

llvm-svn: 28416
 2006-05-20 01:36:52 +00:00
Owen Anderson
c6947bf2ce Make all of the TargetMachine subclasses use the new string TargetData methods. 
This is part of the on-going work on PR 761.

llvm-svn: 28414
 2006-05-20 00:24:56 +00:00
Chris Lattner
6d6a4d0e49 CSRet allows varargs 
llvm-svn: 28409
 2006-05-19 21:34:04 +00:00
Chris Lattner
6ab04ce0cd Add a note 
llvm-svn: 28401
 2006-05-19 20:55:31 +00:00
Chris Lattner
49a93a0ec9 Split the SSE readme items out into their own README. 
llvm-svn: 28400
 2006-05-19 20:51:43 +00:00
Chris Lattner
95b6519d62 Split FP-stack notes out of the main readme. Next up: splitting out SSE. 
llvm-svn: 28399
 2006-05-19 20:45:52 +00:00
Chris Lattner
c29ff5f8b1 Particularly ugly code. 
llvm-svn: 28397
 2006-05-19 19:41:33 +00:00
Evan Cheng
fb2038985a These can be transformed into lea as well. Not that we use this feature 
currently...

llvm-svn: 28393
 2006-05-19 18:43:41 +00:00
Evan Cheng
3a90665f14 - 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.

llvm-svn: 28392
 2006-05-19 18:40:54 +00:00
Evan Cheng
ff19d6478e Explicitly specify MOV32mi can only be used store 32-bit GV, etc. 
llvm-svn: 28390
 2006-05-19 07:30:36 +00:00
Chris Lattner
c0653d237a add a note 
llvm-svn: 28383
 2006-05-18 17:38:16 +00:00
Evan Cheng
d49a6d7065 ImmMask should be 3 for a two-bit field; Compact X86II 
llvm-svn: 28381
 2006-05-18 06:27:15 +00:00
Evan Cheng
667b133ab9 getCalleeSaveRegs and getCalleeSaveRegClasses are no long TableGen'd. 
llvm-svn: 28378
 2006-05-18 00:12:58 +00:00
Evan Cheng
070813257a Use generic iPTR instead i32 to represent pointer type. 
llvm-svn: 28371
 2006-05-17 21:21:41 +00:00
Evan Cheng
3034b633f6 Another entry 
llvm-svn: 28370
 2006-05-17 21:20:51 +00:00
Evan Cheng
ea24815aa3 Remove PointerType from class Target 
llvm-svn: 28368
 2006-05-17 21:20:27 +00:00
Evan Cheng
d282cb8542 Should pass by reference. 
llvm-svn: 28357
 2006-05-17 19:07:40 +00:00
Evan Cheng
b84a79a336 Another entry 
llvm-svn: 28356
 2006-05-17 19:05:31 +00:00
Chris Lattner
c04371da56 Implement the custom lowering hook right, returning values for all of the 
arguments at once.

llvm-svn: 28327
 2006-05-16 17:14:26 +00:00
Chris Lattner
f501a979ec Fix a bug I introduced yesterday, which broke functions with *no* arguments. 
llvm-svn: 28326
 2006-05-16 17:08:35 +00:00
Evan Cheng
dc9b5f5fc0 X86 integer register classes naming changes. Make them consistent with FP, vector classes. 
llvm-svn: 28324
 2006-05-16 07:21:53 +00:00
Chris Lattner
ba1dfc1da7 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.

llvm-svn: 28320
 2006-05-16 06:45:34 +00:00
Chris Lattner
dbbbabb17b More coverity fixes 
llvm-svn: 28266
 2006-05-12 21:14:20 +00:00
Chris Lattner
db8caed257 Dead variable 
llvm-svn: 28265
 2006-05-12 21:12:22 +00:00
Evan Cheng
871a83d4d0 Remove dead code 
llvm-svn: 28261
 2006-05-12 19:03:56 +00:00
Owen Anderson
29e4d70aed Refactor a bunch of includes so that TargetMachine.h doesn't have to include 
TargetData.h.  This should make recompiles a bit faster with my current
TargetData tinkering.

llvm-svn: 28238
 2006-05-12 06:33:49 +00:00
Evan Cheng
6a08dd641a Add MOV16_rm / MOV32_rm and MOV16_mr / MOV32_mr to isLoadFromStackSlot and isStoreToStackSlot 
llvm-svn: 28223
 2006-05-11 07:33:49 +00:00
Evan Cheng
1f5c530d04 Remove a completed entry. 
llvm-svn: 28199
 2006-05-09 06:54:05 +00:00
Chris Lattner
b7152b0b42 Implement MASM sections correctly, without a "has masm sections flag" and a bunch of special case code. 
llvm-svn: 28194
 2006-05-09 05:33:48 +00:00
Chris Lattner
85032c8c5c MASM doesn't have one of these. 
llvm-svn: 28190
 2006-05-09 05:21:47 +00:00