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Author SHA1 Message Date
Evan Cheng
392b821fa4 New test case. x86 isel was creating a cycle in the DAG. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@28477 91177308-0d34-0410-b5e6-96231b3b80d8
 2006-05-25 20:21:19 +00:00
Evan Cheng
553ef1be94 Can't trust NodeDepth when checking for possibility of load folding creating 
a cycle. This increase the search space and will increase compile time (in
practice it appears to be small, e.g. 176.gcc goes from 62 sec to 65 sec)
that will be addressed later.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@28476 91177308-0d34-0410-b5e6-96231b3b80d8
 2006-05-25 20:16:55 +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
Chris Lattner
8e2a04e21d Fix build failure of povray 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@28473 91177308-0d34-0410-b5e6-96231b3b80d8
 2006-05-25 18:06:16 +00:00
Chris Lattner
5d634ce466 Fix Benchmarks/MallocBench/cfrac 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@28471 91177308-0d34-0410-b5e6-96231b3b80d8
 2006-05-25 16:54:16 +00:00
Rafael Espindola
2f99b6bd96 implement initial version of ARMAsmPrinter::printOperand 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@28470 91177308-0d34-0410-b5e6-96231b3b80d8
 2006-05-25 12:57:06 +00:00
Rafael Espindola
c3c1a86aa0 port the ARM backend to use ISD::CALL instead of LowerCallTo 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@28469 91177308-0d34-0410-b5e6-96231b3b80d8
 2006-05-25 11:00:18 +00:00
Rafael Espindola
2776bd1d2a create test/Regression/CodeGen/ARM/ and add a minimal test to it 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@28468 91177308-0d34-0410-b5e6-96231b3b80d8
 2006-05-25 10:49:19 +00:00
Evan Cheng
c7b7f4cad2 -sched-commute-nodes is now on by default. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@28467 91177308-0d34-0410-b5e6-96231b3b80d8
 2006-05-25 08:39:25 +00:00
Evan Cheng
3b78823868 Turn on -sched-commute-nodes by default. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@28465 91177308-0d34-0410-b5e6-96231b3b80d8
 2006-05-25 08:37:31 +00:00
Chris Lattner
32cdb6617e Fix breakage on platforms where string/cassert don't pull in int64_t. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@28464 91177308-0d34-0410-b5e6-96231b3b80d8
 2006-05-25 05:59:50 +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
Evan Cheng
4360bdcf1f CALL node change (arg / sign pairs instead of just arguments). 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@28462 91177308-0d34-0410-b5e6-96231b3b80d8
 2006-05-25 00:57:32 +00:00
Evan Cheng
f6d62c2e2a CALL node change: now including signness of every argument. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@28461 91177308-0d34-0410-b5e6-96231b3b80d8
 2006-05-25 00:55:32 +00:00
Evan Cheng
9657eac240 CALL node change: now containing signness of each argument. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@28460 91177308-0d34-0410-b5e6-96231b3b80d8
 2006-05-25 00:54:33 +00:00
Evan Cheng
6a3d5a62f0 Assert if InflightSet is not cleared after instruction selecting a BB. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@28459 91177308-0d34-0410-b5e6-96231b3b80d8
 2006-05-25 00:24:28 +00:00
Evan Cheng
b0793f9741 Fixed a really ugly bug. The TableGen'd isel is not freeing the "inflight set" 
correctly. That is causing non-deterministic behavior (and possibly preventing
some load folding from happening).


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@28458 91177308-0d34-0410-b5e6-96231b3b80d8
 2006-05-25 00:21:44 +00:00
Chris Lattner
d63b964850 Abstract out the current optimization level into a flag that can be overridden 
on the make line, to avoid bugs in native compilers.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@28457 91177308-0d34-0410-b5e6-96231b3b80d8
 2006-05-24 23:02:40 +00:00
Chris Lattner
f07ddcd38b Remove flags implied by -O3 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@28456 91177308-0d34-0410-b5e6-96231b3b80d8
 2006-05-24 22:59:07 +00:00
Chris Lattner
c98deeb887 Update testcase with recent cbe change 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@28455 91177308-0d34-0410-b5e6-96231b3b80d8
 2006-05-24 20:52:08 +00:00
Evan Cheng
afe358e7d4 Clear HandleMap and ReplaceMap after instruction selection. Or it may cause 
non-deterministic behavior.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@28454 91177308-0d34-0410-b5e6-96231b3b80d8
 2006-05-24 20:46:25 +00:00
Reid Spencer
19b7e0e0ca For PR786: 
Minor tweaks in public headers and a few .cpp files so that LLVM can build
successfully with -pedantic and projects using LLVM with -pedantic don't
get warnings from LLVM. There's still more -pedantic warnings to fix.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@28453 91177308-0d34-0410-b5e6-96231b3b80d8
 2006-05-24 19:21:13 +00:00
Reid Spencer
077b387207 For PR786: 
Remove a spurious ;


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@28452 91177308-0d34-0410-b5e6-96231b3b80d8
 2006-05-24 19:05:21 +00:00
Chris Lattner
e5aa8f38a7 Don't use -fomit-frame-pointer on darwin, it breaks stacktrace collection. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@28451 91177308-0d34-0410-b5e6-96231b3b80d8
 2006-05-24 18:34:08 +00:00
Chris Lattner
a04c0c417b Patch for a new instcombine xform, patch contributed by Nick Lewycky! 
This implements Transforms/InstCombine/2006-05-10-InvalidIndexUndef.ll


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@28450 91177308-0d34-0410-b5e6-96231b3b80d8
 2006-05-24 17:34:30 +00:00
Chris Lattner
b464997bba Testcase for a new instcombine xform, patch contributed by Nick Lewycky! 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@28449 91177308-0d34-0410-b5e6-96231b3b80d8
 2006-05-24 17:34:02 +00:00
Chris Lattner
243be2c80d Don't make zero-sized static arrays 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@28448 91177308-0d34-0410-b5e6-96231b3b80d8
 2006-05-24 17:31:02 +00:00
Chris Lattner
d74ea2bbd8 Patches to make the LLVM sources more -pedantic clean. Patch provided 
by Anton Korobeynikov!  This is a step towards closing PR786.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@28447 91177308-0d34-0410-b5e6-96231b3b80d8
 2006-05-24 17:04:05 +00:00
Chris Lattner
c22158d371 One of these xforms is only safe with unsafe math enabled. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@28446 91177308-0d34-0410-b5e6-96231b3b80d8
 2006-05-24 00:49:32 +00:00
Chris Lattner
2ef5e89dc9 Fix CodeGen/Generic/vector.ll:test_div with altivec. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@28445 91177308-0d34-0410-b5e6-96231b3b80d8
 2006-05-24 00:15:25 +00:00
Chris Lattner
5ecc0acfbb New testcase 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@28444 91177308-0d34-0410-b5e6-96231b3b80d8
 2006-05-24 00:12:50 +00:00
Chris Lattner
5734012375 Handle SETO* like we handle SET*, restoring behavior after Evan's setcc 
change.  This fixes PowerPC/fnegsel.ll.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@28443 91177308-0d34-0410-b5e6-96231b3b80d8
 2006-05-24 00:06:44 +00:00
Chris Lattner
0c54d8964d Print struct return functions and calls as actually returning the hidden 
argument struct pointer, enabling ABI compatibility for the CBE with
platforms with strange struct-return ABIs.  This fixes 252.eon and
CoyoteBench/fftbench on Darwin/X86 among other things.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@28442 91177308-0d34-0410-b5e6-96231b3b80d8
 2006-05-23 23:39:48 +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
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