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4968 Commits

Author SHA1 Message Date
Bill Wendling
97e3c01eb4 If we reload a virtual register that's already been assigned, we want to mark 
that instruction as its "last use". This fixes PR1925.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@47758 91177308-0d34-0410-b5e6-96231b3b80d8
 2008-02-29 18:52:01 +00:00
Chris Lattner
9d34c4d678 fix a bug Anders ran into where scalarrepl would crash when promoting 
a union containing a vector and an array whose elements were smaller than
the vector elements.  this means we need to compile the load of the 
array elements into an extract element plus a truncate.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@47752 91177308-0d34-0410-b5e6-96231b3b80d8
 2008-02-29 07:12:06 +00:00
Chris Lattner
5ebd93630b Folding or(fcmp,fcmp) only works if the operands of the fcmps are the same fp type. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@47750 91177308-0d34-0410-b5e6-96231b3b80d8
 2008-02-29 06:09:11 +00:00
Lauro Ramos Venancio
9b80bd8ea2 Update testcase. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@47735 91177308-0d34-0410-b5e6-96231b3b80d8
 2008-02-28 23:13:15 +00:00
Gabor Greif
c0734e3c99 Fix http://llvm.org/bugs/show_bug.cgi?id=2104 by ordering lexicographically what gets printed. Be const-correct in PrintResults and uninline it too 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@47712 91177308-0d34-0410-b5e6-96231b3b80d8
 2008-02-28 08:38:45 +00:00
Evan Cheng
e526d8a955 Set to default: x86 no longer fold and into test if it has more than one use. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@47711 91177308-0d34-0410-b5e6-96231b3b80d8
 2008-02-28 07:46:38 +00:00
Dale Johannesen
0154e47ed0 New test for misaligned Altivec laod/store. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@47698 91177308-0d34-0410-b5e6-96231b3b80d8
 2008-02-27 23:14:50 +00:00
Dan Gohman
ec59b95a19 Don't hard-code the mask size to be 32, which is incorrect on ppc64 
and was causing aborts with the new APInt changes. This may also be
fixing an obscure ppc64 bug.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@47692 91177308-0d34-0410-b5e6-96231b3b80d8
 2008-02-27 21:12:32 +00:00
Evan Cheng
21b3f31f8f Fix a bug in dead spill slot elimination. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@47687 91177308-0d34-0410-b5e6-96231b3b80d8
 2008-02-27 19:57:11 +00:00
Chris Lattner
e416b7d407 actually run llc, thanks Dan :) 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@47677 91177308-0d34-0410-b5e6-96231b3b80d8
 2008-02-27 17:46:54 +00:00
Evan Cheng
be680dcea6 Don't track max alignment during stack object allocations since they can be deleted later. Let PEI compute it. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@47668 91177308-0d34-0410-b5e6-96231b3b80d8
 2008-02-27 10:04:56 +00:00
Chris Lattner
b09916bdfb Make X86TargetLowering::LowerSINT_TO_FP return without creating a dead 
stack slot and store if the  SINT_TO_FP is actually legal.  This allows
us to compile:

double a(double b) {return (unsigned)b;}

to:

_a:
	cvttsd2siq	%xmm0, %rax
	movl	%eax, %eax
	cvtsi2sdq	%rax, %xmm0
	ret

instead of:

_a:
	subq	$8, %rsp
	cvttsd2siq	%xmm0, %rax
	movl	%eax, %eax
	cvtsi2sdq	%rax, %xmm0
	addq	$8, %rsp
	ret

crazy.



git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@47660 91177308-0d34-0410-b5e6-96231b3b80d8
 2008-02-27 05:57:41 +00:00
Chris Lattner
d0ba2a9c14 Compile x86-64-and-mask.ll into: 
_test:
	movl	%edi, %eax
	ret

instead of:

_test:
        movl    $4294967295, %ecx
        movq    %rdi, %rax
        andq    %rcx, %rax
        ret

It would be great to write this as a Pat pattern that used subregs 
instead of a 'pseudo' instruction, but I don't know how to do that
in td files.



git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@47658 91177308-0d34-0410-b5e6-96231b3b80d8
 2008-02-27 05:47:54 +00:00
Evan Cheng
d36531249a Spiller now remove unused spill slots. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@47657 91177308-0d34-0410-b5e6-96231b3b80d8
 2008-02-27 03:04:06 +00:00
Bill Wendling
cc4831849e Upgrade testcase. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@47644 91177308-0d34-0410-b5e6-96231b3b80d8
 2008-02-26 23:22:40 +00:00
Owen Anderson
bf931bb094 Add PR number to testcase. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@47640 91177308-0d34-0410-b5e6-96231b3b80d8
 2008-02-26 23:16:11 +00:00
Owen Anderson
77db50f68f Fix an issue where GVN had the sizes of the two memcpy's reverse, resulting 
in an invalid transformation.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@47639 91177308-0d34-0410-b5e6-96231b3b80d8
 2008-02-26 23:06:17 +00:00
Evan Cheng
4d535cadf1 Enable -coalescer-commute-instrs by default. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@47623 91177308-0d34-0410-b5e6-96231b3b80d8
 2008-02-26 20:40:22 +00:00
Dan Gohman
d4cf992230 Avoid aborting on invalid shift counts. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@47612 91177308-0d34-0410-b5e6-96231b3b80d8
 2008-02-26 18:50:50 +00:00
Eli Friedman
9ec8095485 Fix for pr2093: direct operands aren't necessarily addresses, so don't 
try to simplify them.



git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@47610 91177308-0d34-0410-b5e6-96231b3b80d8
 2008-02-26 18:37:49 +00:00
Chris Lattner
36ab30102a fix this test so that the fn name doesn't match the regex 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@47608 91177308-0d34-0410-b5e6-96231b3b80d8
 2008-02-26 18:13:51 +00:00
Chris Lattner
aeecb6c73a Fix PR2096, a regression introduced with my patch last night. This 
also fixes cfrac, flops, and 175.vpr


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@47605 91177308-0d34-0410-b5e6-96231b3b80d8
 2008-02-26 17:09:59 +00:00
Gabor Greif
72c8f0d156 Really feed llvm-as with the testcase, do not let it read from stdin. This fixes the hangs seen on solaris10. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@47604 91177308-0d34-0410-b5e6-96231b3b80d8
 2008-02-26 13:37:13 +00:00
Gabor Greif
1514010270 unbreak check-one 
by supplying a dummy
"verbose" procedure


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@47603 91177308-0d34-0410-b5e6-96231b3b80d8
 2008-02-26 13:27:49 +00:00
Gabor Greif
684ed3d987 While hunting for two hanging tests, 
(on solaris10, which are:
  CodeGen/PowerPC/frounds.ll
  Transforms/InstCombine/2008-02-23-MulSub.ll)

I needed a tool to figure out which one is the guilty.

To this end I have added a verbosity
option to the test/Makefile.

It can be invoked thus:

gmake check TESTSUITE=CodeGen/PowerPC VERBOSE="-v -v"

(The number of "-v"s specifies the verbosity level.
 Instead of "-v" other aliases can be specified,
 please consult the dejagnu docs for info.)

At level >= 2 following line is logged for each
test, before running it:

ABOUT TO RUN: <test>.ll


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@47602 91177308-0d34-0410-b5e6-96231b3b80d8
 2008-02-26 12:08:55 +00:00
Evan Cheng
c886c460e4 This is possible: 
vr1 = extract_subreg vr2, 3
...
vr3 = extract_subreg vr1, 2
The end result is vr3 is equal to vr2 with subidx 2.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@47592 91177308-0d34-0410-b5e6-96231b3b80d8
 2008-02-26 08:03:41 +00:00
Chris Lattner
0254e7033a Fix isNegatibleForFree to not return true for ConstantFP nodes 
after legalize.  Just because a constant is legal (e.g. 0.0 in SSE) 
doesn't mean that its negated value is legal (-0.0).  We could make
this stronger by checking to see if the negated constant is actually
legal post negation, but it doesn't seem like a big deal.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@47591 91177308-0d34-0410-b5e6-96231b3b80d8
 2008-02-26 07:04:54 +00:00
Evan Cheng
9bf12b5583 Fix PR2076. CodeGenPrepare now sinks address computation for inline asm memory 
operands into inline asm block.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@47589 91177308-0d34-0410-b5e6-96231b3b80d8
 2008-02-26 02:42:37 +00:00
Devang Patel
d9d99ff8e8 Update bitcode reader and writer to handle multiple return values. 
Take 2.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@47583 91177308-0d34-0410-b5e6-96231b3b80d8
 2008-02-26 01:29:32 +00:00
Owen Anderson
c0808a7e1d Fix an issue where GVN was performing the return slot optimization when it was 
not safe.  This is fixed by more aggressively checking that the return slot is
not used elsewhere in the function.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@47544 91177308-0d34-0410-b5e6-96231b3b80d8
 2008-02-25 04:08:09 +00:00
Evan Cheng
b9a905781e Temporarily reverting 46959. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@47542 91177308-0d34-0410-b5e6-96231b3b80d8
 2008-02-25 03:57:32 +00:00
Owen Anderson
0f7ea1ab10 Fix an issue where GVN would try to use an instruction before its definition when performing return slot optimization. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@47541 91177308-0d34-0410-b5e6-96231b3b80d8
 2008-02-25 00:40:41 +00:00
Evan Cheng
1df439773c Backing out r47521 for now. This has broken a number of tests. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@47533 91177308-0d34-0410-b5e6-96231b3b80d8
 2008-02-23 19:32:32 +00:00
Scott Michel
a59d469e9b Merge current work back to tree to minimize diffs and drift. Major highlights 
for CellSPU modifications:

- SPUInstrInfo.td refactoring: "multiclass" really is _your_ friend.
- Other improvements based on refactoring effort in SPUISelLowering.cpp,
  esp. in SPUISelLowering::PerformDAGCombine(), where zero amount shifts and
  rotates are now eliminiated, other scalar-to-vector-to-scalar silliness
  is also eliminated.
- 64-bit operations are being implemented, _muldi3.c gcc runtime now
  compiles and generates the right code. More work still needs to be done.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@47532 91177308-0d34-0410-b5e6-96231b3b80d8
 2008-02-23 18:41:37 +00:00
Zhou Sheng
f65a0f7860 Testcase for Revision 47478. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@47531 91177308-0d34-0410-b5e6-96231b3b80d8
 2008-02-23 10:59:51 +00:00
Evan Cheng
249ded3fa8 Rematerialization logic was overly conservative when it comes to loads from fixed stack slots. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@47529 91177308-0d34-0410-b5e6-96231b3b80d8
 2008-02-23 03:38:34 +00:00
Evan Cheng
aaa1d4265e Update test. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@47527 91177308-0d34-0410-b5e6-96231b3b80d8
 2008-02-23 02:57:25 +00:00
Evan Cheng
18924f11c1 Remat of pic loads are now on by default. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@47525 91177308-0d34-0410-b5e6-96231b3b80d8
 2008-02-23 02:08:30 +00:00
Dan Gohman
61e015fe74 Fix a bug that caused opt and other tools to silently ignore 
invalid command-line options.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@47523 91177308-0d34-0410-b5e6-96231b3b80d8
 2008-02-23 01:55:25 +00:00
Devang Patel
e9fabd94ab Properly read and write bitcodes for multiple return values. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@47521 91177308-0d34-0410-b5e6-96231b3b80d8
 2008-02-23 01:44:55 +00:00
Evan Cheng
28c9fc630c Really. Why doesn't every arch support MMX? 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@47513 91177308-0d34-0410-b5e6-96231b3b80d8
 2008-02-23 00:56:14 +00:00
Evan Cheng
530d47f4f2 Test case for PR2082. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@47501 91177308-0d34-0410-b5e6-96231b3b80d8
 2008-02-22 20:38:49 +00:00
Evan Cheng
d8850a512e Allow re-materialization of pic load (controlled by -remat-pic-load for now). 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@47476 91177308-0d34-0410-b5e6-96231b3b80d8
 2008-02-22 09:25:47 +00:00
Chris Lattner
d2b1fb27df copy mmx values from/to memory with GPRs on x86-32 
instead of with mmx registers.  This horribleness is apparently
done by gcc to avoid having to insert emms in places that really 
should have it.  This is the second half of rdar://5741668.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@47474 91177308-0d34-0410-b5e6-96231b3b80d8
 2008-02-22 05:18:04 +00:00
Chris Lattner
149a4e56fc Start using GPR's to copy around mmx value instead of mmx regs. 
GCC apparently does this, and code depends on not having to do
emms when this happens.  This is x86-64 only so far, second half
should handle x86-32.

rdar://5741668


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@47470 91177308-0d34-0410-b5e6-96231b3b80d8
 2008-02-22 02:09:43 +00:00
Chris Lattner
0fe71e9bb1 Treat clobber operands like early clobbers: if we have 
any, we force sdisel to do all regalloc for an asm.  This
leads to gross but correct codegen.

This fixes the rest of PR2078.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@47454 91177308-0d34-0410-b5e6-96231b3b80d8
 2008-02-21 19:43:13 +00:00
Tanya Lattner
33eefffb2b Remove llvm-upgrade and update tests. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@47432 91177308-0d34-0410-b5e6-96231b3b80d8
 2008-02-21 07:42:26 +00:00
Chris Lattner
2bedd7359c testcase for PR1133 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@47427 91177308-0d34-0410-b5e6-96231b3b80d8
 2008-02-21 05:27:08 +00:00
Chris Lattner
7cbeb2431c Fix a (harmless) but where vregs were added to the used reg lists for 
inline asms.

Fix PR2078 by marking aliases of registers used when a register is 
marked used.  This prevents EAX from being allocated when AX is listed
in the clobber set for the asm.



git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@47426 91177308-0d34-0410-b5e6-96231b3b80d8
 2008-02-21 04:55:52 +00:00
Devang Patel
db71d63467 Let invoke return aggregate value. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@47425 91177308-0d34-0410-b5e6-96231b3b80d8
 2008-02-21 02:14:01 +00:00
Devang Patel
bb4f8d4045 Let function call return aggregate. 
Now, we have very first multiple return value testcase!


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@47424 91177308-0d34-0410-b5e6-96231b3b80d8
 2008-02-21 01:54:02 +00:00
Devang Patel
ad9153ed25 XFAIL for now. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@47411 91177308-0d34-0410-b5e6-96231b3b80d8
 2008-02-20 23:10:42 +00:00
Devang Patel
2102cab02f Now functions can return aggregate values. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@47409 91177308-0d34-0410-b5e6-96231b3b80d8
 2008-02-20 22:51:28 +00:00
Nick Lewycky
3e63076980 Add 'umax' similar to 'smax' SCEV. Closes PR2003. 
Parse reversed smax and umax as smin and umin and express them with negative
or binary-not SCEVs (which are really just subtract under the hood).

Parse 'xor %x, -1' as (-1 - %x).

Remove dead code (ConstantInt::get always returns a ConstantInt).

Don't use getIntegerSCEV(-1, Ty). The first value is an int, then it gets
passed into a uint64_t. Instead, create the -1 directly from
ConstantInt::getAllOnesValue().


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@47360 91177308-0d34-0410-b5e6-96231b3b80d8
 2008-02-20 06:48:22 +00:00
Evan Cheng
359026e39a XFAIL this for now. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@47355 91177308-0d34-0410-b5e6-96231b3b80d8
 2008-02-20 02:38:58 +00:00
Chris Lattner
b476f98ca9 this test requires sse2 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@47331 91177308-0d34-0410-b5e6-96231b3b80d8
 2008-02-19 18:07:46 +00:00
Chris Lattner
ce2bcc8839 Don't fold and's into test instructions if they have multiple uses. 
This compiles test-nofold.ll into:

_test:
	movl	$15, %ecx
	andl	4(%esp), %ecx
	testl	%ecx, %ecx
	movl	$42, %eax
	cmove	%ecx, %eax
	ret

instead of:
_test:
	movl	4(%esp), %eax
	movl	%eax, %ecx
	andl	$15, %ecx
	testl	$15, %eax
	movl	$42, %eax
	cmove	%ecx, %eax
	ret



git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@47330 91177308-0d34-0410-b5e6-96231b3b80d8
 2008-02-19 17:37:35 +00:00
Chris Lattner
22c31769fb rename tests to avoid a test- prefix when they aren't related to the test instruction. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@47329 91177308-0d34-0410-b5e6-96231b3b80d8
 2008-02-19 17:33:52 +00:00
Tanya Lattner
cfab3da46e Remove llvm-upgrade and update tests. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@47325 91177308-0d34-0410-b5e6-96231b3b80d8
 2008-02-19 08:07:33 +00:00
Chris Lattner
1459c5d8e1 dead pass 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@47324 91177308-0d34-0410-b5e6-96231b3b80d8
 2008-02-19 07:58:11 +00:00
Chris Lattner
689e8b294e Fix PR2060 by rejecting invalid types for integer constants. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@47311 91177308-0d34-0410-b5e6-96231b3b80d8
 2008-02-19 04:36:07 +00:00
Nick Lewycky
7ad3920e31 Don't spew stats to stderr. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@47308 91177308-0d34-0410-b5e6-96231b3b80d8
 2008-02-19 03:11:47 +00:00
Nick Lewycky
9103ba1003 Fix up the run line for this new test. 
llc: for the -info-output-file option:  requires a value!


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@47306 91177308-0d34-0410-b5e6-96231b3b80d8
 2008-02-19 02:58:36 +00:00
Evan Cheng
acfab64631 New test. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@47302 91177308-0d34-0410-b5e6-96231b3b80d8
 2008-02-19 02:09:58 +00:00
Tanya Lattner
2ad38be2cf Remove llvm-upgrade and update tests. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@47297 91177308-0d34-0410-b5e6-96231b3b80d8
 2008-02-19 01:44:26 +00:00
Tanya Lattner
53a66d10f0 Remove llvm-upgrade and update tests. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@47296 91177308-0d34-0410-b5e6-96231b3b80d8
 2008-02-19 01:41:04 +00:00
Evan Cheng
efec751a1b - When DAG combiner is folding a bit convert into a BUILD_VECTOR, it should check if it's essentially a SCALAR_TO_VECTOR. Avoid turning (v8i16) <10, u, u, u> to <10, 0, u, u, u, u, u, u>. Instead, simply convert it to a SCALAR_TO_VECTOR of the proper type. 
- X86 now normalize SCALAR_TO_VECTOR to (BIT_CONVERT (v4i32 SCALAR_TO_VECTOR)). Get rid of X86ISD::S2VEC.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@47290 91177308-0d34-0410-b5e6-96231b3b80d8
 2008-02-18 23:04:32 +00:00
Nick Lewycky
e0cfecf47d Correctly fold divide-by-constant, even when faced with overflow. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@47287 91177308-0d34-0410-b5e6-96231b3b80d8
 2008-02-18 22:48:05 +00:00
Dan Gohman
339ffedca9 Don't mark scalar integer multiplication as Expand on x86, since x86 
has plain one-result scalar integer multiplication instructions.
This avoids expanding such instructions into MUL_LOHI sequences that
must be special-cased at isel time, and avoids the problem with that
code that provented memory operands from being folded.

This fixes PR1874, addressesing the most common case. The uncommon
cases of optimizing multiply-high operations will require work
in DAGCombiner.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@47277 91177308-0d34-0410-b5e6-96231b3b80d8
 2008-02-18 17:55:26 +00:00
Chris Lattner
ea0415957d make this just a bit more strict. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@47274 91177308-0d34-0410-b5e6-96231b3b80d8
 2008-02-18 17:33:10 +00:00
Owen Anderson
5aa4f2a085 Add support to GVN for performing sret return slot optimization. This means that, if an sret function tail calls 
another sret function, it should pass its own sret parameter to the tail callee, allowing it to fill in the correct
return value.  llvm-gcc does not emit this by default.  Instead, it allocates space in the caller for the sret of
the tail call and then uses memcpy to copy the result into the caller's sret parameter.  This optimization detects
and optimizes that case.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@47265 91177308-0d34-0410-b5e6-96231b3b80d8
 2008-02-18 09:24:53 +00:00
Chris Lattner
bf1d8a7099 optimize away stackrestore calls that have no intervening alloca or call. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@47258 91177308-0d34-0410-b5e6-96231b3b80d8
 2008-02-18 06:12:38 +00:00
Chris Lattner
28cb2051c8 upgrade this test. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@47257 91177308-0d34-0410-b5e6-96231b3b80d8
 2008-02-18 06:11:00 +00:00
Chris Lattner
dd12f96c5e Fold (-x + -y) -> -(x+y) which promotes better association, fixing 
the second half of PR2047


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@47244 91177308-0d34-0410-b5e6-96231b3b80d8
 2008-02-17 21:03:36 +00:00
Chris Lattner
0b0803ae15 Split up subtracts into add+negate if they have a reassociable use or operand 
that is also a subtract.  This implements PR2047 and Transforms/Reassociate/subtest2.ll 


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@47241 91177308-0d34-0410-b5e6-96231b3b80d8
 2008-02-17 20:51:26 +00:00
Chris Lattner
f06c3c29ac upgrade and simplify this test. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@47240 91177308-0d34-0410-b5e6-96231b3b80d8
 2008-02-17 20:48:43 +00:00
Tanya Lattner
6263f94674 Remove llvm-upgrade. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@47238 91177308-0d34-0410-b5e6-96231b3b80d8
 2008-02-17 20:02:20 +00:00
Chris Lattner
5f137244c2 fix this test. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@47232 91177308-0d34-0410-b5e6-96231b3b80d8
 2008-02-17 00:15:25 +00:00
Tanya Lattner
d349a4eda1 Remove llvm-upgrade 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@47231 91177308-0d34-0410-b5e6-96231b3b80d8
 2008-02-17 00:15:09 +00:00
Tanya Lattner
2d290f9dc4 Remove llvm-upgrade. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@47230 91177308-0d34-0410-b5e6-96231b3b80d8
 2008-02-17 00:13:09 +00:00
Chris Lattner
26fdb11e4e this test isn't useful since we added @ notation for globals. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@47229 91177308-0d34-0410-b5e6-96231b3b80d8
 2008-02-17 00:12:03 +00:00
Chris Lattner
8a39257fa5 this line was commented out. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@47228 91177308-0d34-0410-b5e6-96231b3b80d8
 2008-02-17 00:09:08 +00:00
Tanya Lattner
709f6ecd03 Remove llvm-upgrade and update tests. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@47227 91177308-0d34-0410-b5e6-96231b3b80d8
 2008-02-16 23:55:46 +00:00
Tanya Lattner
91974939d0 Removing llvm upgrade, so remove tests specific to llvm-upgrade and update the tests that used it. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@47225 91177308-0d34-0410-b5e6-96231b3b80d8
 2008-02-16 23:27:24 +00:00
Duncan Sands
3d5378ff8e Remove any 'nest' parameter attributes if the function 
is not passed as an argument to a trampoline intrinsic.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@47220 91177308-0d34-0410-b5e6-96231b3b80d8
 2008-02-16 20:56:04 +00:00
Andrew Lenharth
22c5c1b2df llvm.memory.barrier, and impl for x86 and alpha 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@47204 91177308-0d34-0410-b5e6-96231b3b80d8
 2008-02-16 01:24:58 +00:00
Chris Lattner
d1bb1c2765 upgrade this test, which wasn't testing the right thing since llvm-upgrade came around. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@47194 91177308-0d34-0410-b5e6-96231b3b80d8
 2008-02-15 23:58:25 +00:00
Chris Lattner
01042345c8 rename llx -> ll 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@47192 91177308-0d34-0410-b5e6-96231b3b80d8
 2008-02-15 23:51:48 +00:00
Evan Cheng
de7f560744 This test is not interesting. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@47189 91177308-0d34-0410-b5e6-96231b3b80d8
 2008-02-15 23:06:21 +00:00
Dale Johannesen
35e11cd70b Modify test to expect improved code. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@47182 91177308-0d34-0410-b5e6-96231b3b80d8
 2008-02-15 22:05:15 +00:00
Duncan Sands
31fdedde04 Fix this test on linux, which returns S242 
using sret.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@47173 91177308-0d34-0410-b5e6-96231b3b80d8
 2008-02-15 19:42:13 +00:00
Devang Patel
9d9b204d6a Fix PR2028 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@47150 91177308-0d34-0410-b5e6-96231b3b80d8
 2008-02-15 01:24:49 +00:00
Devang Patel
9b03daa2a3 If loop header is also loop exiting block then OrigPN is incoming value for B loop header. 
Fixes PR 2030.



git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@47141 91177308-0d34-0410-b5e6-96231b3b80d8
 2008-02-14 23:18:47 +00:00
Chris Lattner
8c5c22f610 Fix PR2029 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@47129 91177308-0d34-0410-b5e6-96231b3b80d8
 2008-02-14 19:18:13 +00:00
Chris Lattner
423be627e6 Fix a miscompilation from Dan's recent apintification. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@47128 91177308-0d34-0410-b5e6-96231b3b80d8
 2008-02-14 18:48:56 +00:00
Tanya Lattner
6e9bceea97 Remove llvm-upgrade 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@47119 91177308-0d34-0410-b5e6-96231b3b80d8
 2008-02-14 07:57:12 +00:00
Nick Lewycky
c91b49b890 Testcase for PR2032. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@47113 91177308-0d34-0410-b5e6-96231b3b80d8
 2008-02-14 07:15:11 +00:00
Tanya Lattner
dcd188d33f Remove llvm-upgrade. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@47110 91177308-0d34-0410-b5e6-96231b3b80d8
 2008-02-14 06:56:27 +00:00
Chris Lattner
8b0cb7bcc6 This readme entry is done, testcase here: CodeGen/X86/zero-remat.ll 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@47106 91177308-0d34-0410-b5e6-96231b3b80d8
 2008-02-14 05:39:46 +00:00
Evan Cheng
5598b70a78 Fix test. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@47102 91177308-0d34-0410-b5e6-96231b3b80d8
 2008-02-14 01:32:53 +00:00
Devang Patel
ea06906559 A loop latch phi node may have uses inside loop, not just in loop header. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@47093 91177308-0d34-0410-b5e6-96231b3b80d8
 2008-02-13 22:23:07 +00:00
Devang Patel
23067dfeac While moving exit condition, do not drop loop latch on the floor. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@47089 91177308-0d34-0410-b5e6-96231b3b80d8
 2008-02-13 22:06:36 +00:00
Devang Patel
02c4836f3d Keep track of exit value operand number when operands are swapped. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@47082 91177308-0d34-0410-b5e6-96231b3b80d8
 2008-02-13 19:48:48 +00:00
Dale Johannesen
84ad8378ee New test, see comments. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@47078 91177308-0d34-0410-b5e6-96231b3b80d8
 2008-02-13 18:36:48 +00:00
Duncan Sands
d462ba8539 Teach LegalizeTypes how to expand and promote CTLZ, 
CTTZ and CTPOP.  The expansion code differs from
that in LegalizeDAG in that it chooses to take the
CTLZ/CTTZ count from the Hi/Lo part depending on
whether the Hi/Lo value is zero, not on whether
CTLZ/CTTZ of Hi/Lo returned 32 (or whatever the
width of the type is) for it.  I made this change
because the optimizers may well know that Hi/Lo
is zero and exploit it.  The promotion code for
CTTZ also differs from that in LegalizeDAG: it
uses an "or" to get the right result when the
original value is zero, rather than using a compare
and select.  This also means the value doesn't
need to be zero extended.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@47075 91177308-0d34-0410-b5e6-96231b3b80d8
 2008-02-13 18:01:53 +00:00
Eli Friedman
35327b3e57 Add a note pointing to PR1996. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@47055 91177308-0d34-0410-b5e6-96231b3b80d8
 2008-02-13 07:56:04 +00:00
Chris Lattner
86ca3cacc5 In SDISel, for targets that support FORMAL_ARGUMENTS nodes, lower this 
node as soon as we create it in SDISel.  Previously we would lower it in
legalize.  The problem with this is that it only exposes the argument
loads implied by FORMAL_ARGUMENTs after legalize, so that only dag combine 2
can hack on them.  This causes us to miss some optimizations because 
datatype expansion also happens here.

Exposing the loads early allows us to do optimizations on them.  For example
we now compile arg-cast.ll to:

_foo:
	movl	$2147483647, %eax
	andl	8(%esp), %eax
	ret

where we previously produced:

_foo:
	subl	$12, %esp
	movsd	16(%esp), %xmm0
	movsd	%xmm0, (%esp)
	movl	$2147483647, %eax
	andl	4(%esp), %eax
	addl	$12, %esp
	ret

It might also make sense to do this for ISD::CALL nodes, which have implicit
stores on many targets.



git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@47054 91177308-0d34-0410-b5e6-96231b3b80d8
 2008-02-13 07:39:09 +00:00
Eli Friedman
261c704da1 Add test for PR1996. (This is my first time adding a test for a 
transform, so please review.)



git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@47050 91177308-0d34-0410-b5e6-96231b3b80d8
 2008-02-13 06:55:57 +00:00
Nate Begeman
5e1dd5597e Add testcase for recent legalizer change 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@47049 91177308-0d34-0410-b5e6-96231b3b80d8
 2008-02-13 06:48:40 +00:00
Evan Cheng
b2e72b0feb New tests. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@47047 91177308-0d34-0410-b5e6-96231b3b80d8
 2008-02-13 03:23:53 +00:00
Owen Anderson
30b4bd4d10 Re-apply the patch to improve the optimizations of memcpy's, with several 
bugs fixed.  This now passes PPC bootstrap.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@47026 91177308-0d34-0410-b5e6-96231b3b80d8
 2008-02-12 21:15:18 +00:00
Evan Cheng
073c5b721d Don't mask the isel bug. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@47018 91177308-0d34-0410-b5e6-96231b3b80d8
 2008-02-12 19:11:29 +00:00
Evan Cheng
aeb231cb59 This test assumes no SSE4.1. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@47017 91177308-0d34-0410-b5e6-96231b3b80d8
 2008-02-12 19:11:08 +00:00
Wojciech Matyjewicz
52f321f525 Now that ScalarEvolution::print writes to the correct stream, there is 
no need to redirect stderr into stdout.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@47009 91177308-0d34-0410-b5e6-96231b3b80d8
 2008-02-12 15:12:40 +00:00
Wojciech Matyjewicz
2a9054cfd6 Change negative grep into positive one in my yesterday's testcase. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@47008 91177308-0d34-0410-b5e6-96231b3b80d8
 2008-02-12 15:10:35 +00:00
Wojciech Matyjewicz
7b5b76835a Fix PR2002. Suppose n is the initial value for the induction 
variable (with step 1) and m is its final value. Then, the correct trip 
count is SMAX(m,n)-n. Previously, we used SMAX(0,m-n), but m-n may 
overflow and can't in general be interpreted as signed.

Patch by Nick Lewycky.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@47007 91177308-0d34-0410-b5e6-96231b3b80d8
 2008-02-12 15:09:36 +00:00
Tanya Lattner
3c593c947c Test case for annotate builtin. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@46999 91177308-0d34-0410-b5e6-96231b3b80d8
 2008-02-12 07:46:33 +00:00
Evan Cheng
65b2e3df0d Fix some test cases. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@46998 91177308-0d34-0410-b5e6-96231b3b80d8
 2008-02-12 07:22:46 +00:00
Wojciech Matyjewicz
a089b10421 If the LHS of the comparison is a loop-invariant we also want to move it 
to the RHS. This simple change allows to compute loop iteration count 
for loops with condition similar to the one in the testcase (which seems 
to be quite common).


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@46959 91177308-0d34-0410-b5e6-96231b3b80d8
 2008-02-11 18:37:34 +00:00
Wojciech Matyjewicz
e3320a1bcc Fix PR1798 - an error in the evaluation of SCEVAddRecExpr at an 
arbitrary iteration.

The patch:
1) changes SCEVSDivExpr into SCEVUDivExpr,
2) replaces PartialFact() function with BinomialCoefficient(); the 
computations (essentially, the division) in BinomialCoefficient() are 
performed with the apprioprate bitwidth necessary to avoid overflow; 
unsigned division is used instead of the signed one.

Computations in BinomialCoefficient() require support from the code 
generator for APInts. Currently, we use a hack rounding up the 
neccessary bitwidth to the nearest power of 2. The hack is easy to turn 
off in future.

One remaining issue: we assume the divisor of the binomial coefficient 
formula can be computed accurately using 16 bits. It means we can handle 
AddRecs of length up to 9. In future, we should use APInts to evaluate 
the divisor.

Thanks to Nicholas for cooperation!


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@46955 91177308-0d34-0410-b5e6-96231b3b80d8
 2008-02-11 11:03:14 +00:00
Evan Cheng
431bfcbe37 Determine whether a spill kills the register it's spilling before insertion rather than trying to undo the kill marker afterwards. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@46953 91177308-0d34-0410-b5e6-96231b3b80d8
 2008-02-11 08:30:52 +00:00
Dan Gohman
6f0d024a53 Rename MRegisterInfo to TargetRegisterInfo. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@46930 91177308-0d34-0410-b5e6-96231b3b80d8
 2008-02-10 18:45:23 +00:00
Dale Johannesen
b3c4eb46d6 Alignment of struct containing vectors depends on 
whether SSE is present, on Darwin anyway.  Make it
explicit.



git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@46909 91177308-0d34-0410-b5e6-96231b3b80d8
 2008-02-09 19:04:25 +00:00
Devang Patel
82ada54da0 Fix PR 1995. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@46898 91177308-0d34-0410-b5e6-96231b3b80d8
 2008-02-08 22:49:13 +00:00
Evan Cheng
5fd79d0560 It's not always safe to fold movsd into xorpd, etc. Check the alignment of the load address first to make sure it's 16 byte aligned. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@46893 91177308-0d34-0410-b5e6-96231b3b80d8
 2008-02-08 21:20:40 +00:00
Evan Cheng
33663fc104 Added missing entries in X86 load / store folding tables. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@46866 91177308-0d34-0410-b5e6-96231b3b80d8
 2008-02-08 00:12:56 +00:00
Evan Cheng
be3bf42331 Fix a x86-64 codegen deficiency. Allow gv + offset when using rip addressing mode. 
Before:
_main:
        subq    $8, %rsp
        leaq    _X(%rip), %rax
        movsd   8(%rax), %xmm1
        movss   _X(%rip), %xmm0
        call    _t
        xorl    %ecx, %ecx
        movl    %ecx, %eax
        addq    $8, %rsp
        ret
Now:
_main:
        subq    $8, %rsp
        movsd   _X+8(%rip), %xmm1
        movss   _X(%rip), %xmm0
        call    _t
        xorl    %ecx, %ecx
        movl    %ecx, %eax
        addq    $8, %rsp
        ret

Notice there is another idiotic codegen issue that needs to be fixed asap:
xorl    %ecx, %ecx
movl    %ecx, %eax


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@46850 91177308-0d34-0410-b5e6-96231b3b80d8
 2008-02-07 08:53:49 +00:00
Evan Cheng
b745e88bf0 It's PR1925, not PR1609. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@46825 91177308-0d34-0410-b5e6-96231b3b80d8
 2008-02-06 22:07:17 +00:00
Bill Wendling
e00fec554b Temporarily reverting: 
http://lists.cs.uiuc.edu/pipermail/llvm-commits/Week-of-Mon-20080128/057882.html

This is causing a miscompilation on PPC G5 and just now seeing it on iMac x86-64.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@46822 91177308-0d34-0410-b5e6-96231b3b80d8
 2008-02-06 20:03:07 +00:00
Evan Cheng
2fc628d662 Fix a number of local register allocator issues: PR1609. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@46821 91177308-0d34-0410-b5e6-96231b3b80d8
 2008-02-06 19:16:53 +00:00
Evan Cheng
a58891ff1e Fix PR1975: dag isel emitter produces patterns that isel wrong flag result. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@46776 91177308-0d34-0410-b5e6-96231b3b80d8
 2008-02-05 22:50:29 +00:00
Evan Cheng
bb4151bd1f If a vr is already marked alive in a bb, then it has PHI uses that are visited earlier, then it is not killed in the def block (i.e. not dead). 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@46763 91177308-0d34-0410-b5e6-96231b3b80d8
 2008-02-05 20:04:18 +00:00
Chris Lattner
7c95debb49 Fix a bug compiling PR1978 (perhaps not the only one though) which 
was incorrectly simplifying "x == (gep x, 1, i)" into false, even 
though i could be negative.  As it turns out, all the code to 
handle this already existed, we just need to disable the incorrect
optimization case and let the general case handle it.



git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@46739 91177308-0d34-0410-b5e6-96231b3b80d8
 2008-02-05 04:45:32 +00:00
Evan Cheng
e4908814d2 This should also work on x86 now. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@46730 91177308-0d34-0410-b5e6-96231b3b80d8
 2008-02-05 00:25:31 +00:00
Duncan Sands
6cc24947b6 Crashes LegalizeTypes with "Do not know how to 
expand the result of this operator!" (node: ctlz).


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@46713 91177308-0d34-0410-b5e6-96231b3b80d8
 2008-02-04 18:07:02 +00:00
Duncan Sands
06418c5610 Crashes LegalizeTypes with "Do not know how to split 
this operator's operand" (node: extract_subvector).


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@46712 91177308-0d34-0410-b5e6-96231b3b80d8
 2008-02-04 18:05:42 +00:00
Chris Lattner
003de9a81e remove target triple to make this test more "generic" 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@46711 91177308-0d34-0410-b5e6-96231b3b80d8
 2008-02-04 18:02:37 +00:00
Duncan Sands
df3fb5ef97 Crashed the new type legalizer. Not likely to catch 
any bugs in the future since to get the crash you also
need hacked in fake libcall support (which creates odd
but legal trees), but since adding it doesn't hurt...
Thanks to Chris for this ultimately reduced version.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@46706 91177308-0d34-0410-b5e6-96231b3b80d8
 2008-02-04 09:40:27 +00:00
Owen Anderson
d02c0bc984 Make this test more aggressive, to cover recent improvements. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@46695 91177308-0d34-0410-b5e6-96231b3b80d8
 2008-02-04 04:55:24 +00:00
Owen Anderson
6f7a52d300 Allow GVN to hack on memcpy's, making them open to further optimization. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@46693 91177308-0d34-0410-b5e6-96231b3b80d8
 2008-02-04 02:59:58 +00:00
Nick Lewycky
f2a5f012f3 Tag this test with the PR reference. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@46688 91177308-0d34-0410-b5e6-96231b3b80d8
 2008-02-03 16:35:19 +00:00
Nick Lewycky
5be2920149 There are some cases where icmp(add) can be folded into a new icmp. Handle them. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@46687 91177308-0d34-0410-b5e6-96231b3b80d8
 2008-02-03 16:33:09 +00:00
Gordon Henriksen
e62a8a353c Fixing a bug creating floating point constants of type other 
than double through the C bindings. Thanks to Tomas Lindquist
Olsen for reporting it.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@46656 91177308-0d34-0410-b5e6-96231b3b80d8
 2008-02-02 01:07:50 +00:00
Lauro Ramos Venancio
859efca7f9 CBackend: Implement unaligned load/store. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@46646 91177308-0d34-0410-b5e6-96231b3b80d8
 2008-02-01 21:25:59 +00:00
Duncan Sands
532d022794 Don't drop function/call return attributes like 'nounwind'. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@46645 91177308-0d34-0410-b5e6-96231b3b80d8
 2008-02-01 20:37:16 +00:00
Dale Johannesen
7757fff6ae Accept getelementptr starting at GV with all 0 indices as a 
legitimate way of representing global variable GV in debug info.



git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@46565 91177308-0d34-0410-b5e6-96231b3b80d8
 2008-01-30 19:00:21 +00:00
Tanya Lattner
e504d76a15 Pointers change size depending upon the target. Remove them to make the test more stable. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@46548 91177308-0d34-0410-b5e6-96231b3b80d8
 2008-01-30 05:15:15 +00:00
Owen Anderson
772601a885 Make DSE much more aggressive by performing DCE earlier. Update a testcase to reflect this increased aggressiveness. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@46542 91177308-0d34-0410-b5e6-96231b3b80d8
 2008-01-30 01:24:47 +00:00
Chris Lattner
b10e0da065 Fix a bug where scalarrepl would discard offset if type would match. 
In practice this can only happen on code with already undefined behavior, 
but this is still a good thing to handle correctly.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@46539 91177308-0d34-0410-b5e6-96231b3b80d8
 2008-01-30 00:39:15 +00:00
Evan Cheng
c748412c42 Update this test case. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@46526 91177308-0d34-0410-b5e6-96231b3b80d8
 2008-01-29 19:30:05 +00:00