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Author SHA1 Message Date
Evan Cheng
3c3ddb3a85 Enable more fold (sext (load x)) -> (sext (truncate (sextload x))) 
transformation. Previously, it's restricted by ensuring the number of load uses
is one. Now the restriction is loosened up by allowing setcc uses to be
"extended" (e.g. setcc x, c, eq -> setcc sext(x), sext(c), eq).


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@43465 91177308-0d34-0410-b5e6-96231b3b80d8
 2007-10-29 19:58:20 +00:00
Chris Lattner
c20b0fbfcd update testcase 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@43452 91177308-0d34-0410-b5e6-96231b3b80d8
 2007-10-29 17:06:35 +00:00
Chris Lattner
cee291c505 Model stacksave and stackrestore as both writing memory, since we 
don't model their dependences on allocas correctly.  This fixes
PR1745.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@43442 91177308-0d34-0410-b5e6-96231b3b80d8
 2007-10-29 05:47:52 +00:00
Chris Lattner
fb7f343615 Add support for the x86-64 'q' regigster modifier, and add support for the 
b/h/w/k/q inline asm memory modifiers, which are just ignored.  This fixes
PR1748 and CodeGen/X86/2007-10-28-inlineasm-q-modifier.ll



git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@43430 91177308-0d34-0410-b5e6-96231b3b80d8
 2007-10-29 03:09:07 +00:00
Chris Lattner
b361ec3197 Fix PR1749 and InstCombine/2007-10-28-EmptyField.ll by handling 
zero-length fields better.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@43427 91177308-0d34-0410-b5e6-96231b3b80d8
 2007-10-29 02:40:02 +00:00
Chris Lattner
3cb63ddd51 Fix PR1752 and LoopSimplify/2007-10-28-InvokeCrash.ll: terminators 
can have uses too.  Wouldn't it be nice if invoke didn't exist? :)


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@43426 91177308-0d34-0410-b5e6-96231b3b80d8
 2007-10-29 02:30:37 +00:00
Bill Wendling
318d3ae397 Test to make sure that if we have an unaligned memcpy, it will still compile. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@43412 91177308-0d34-0410-b5e6-96231b3b80d8
 2007-10-26 23:43:35 +00:00
Bill Wendling
61297f960e On second thought. Remove this as it should never be generated in the first 
place.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@43400 91177308-0d34-0410-b5e6-96231b3b80d8
 2007-10-26 20:34:37 +00:00
Bill Wendling
984e986929 - Remove the hacky code that forces a memcpy. Alignment is taken care of in the 
FE.
- Explicitly pass in the alignment of the load & store.
- XFAIL 2007-10-23-UnalignedMemcpy.ll because llc has a bug that crashes on
  unaligned pointers.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@43398 91177308-0d34-0410-b5e6-96231b3b80d8
 2007-10-26 20:24:42 +00:00
Evan Cheng
2bd122c4d9 Loosen up iv reuse to allow reuse of the same stride but a larger type when truncating from the larger type to smaller type is free. 
e.g.
Turns this loop:
LBB1_1: # entry.bb_crit_edge
        xorl    %ecx, %ecx
        xorw    %dx, %dx
        movw    %dx, %si
LBB1_2: # bb
        movl    L_X$non_lazy_ptr, %edi
        movw    %si, (%edi)
        movl    L_Y$non_lazy_ptr, %edi
        movw    %dx, (%edi)
		addw    $4, %dx
		incw    %si
		incl    %ecx
		cmpl    %eax, %ecx
		jne     LBB1_2  # bb
	
into

LBB1_1: # entry.bb_crit_edge
        xorl    %ecx, %ecx
        xorw    %dx, %dx
LBB1_2: # bb
        movl    L_X$non_lazy_ptr, %esi
        movw    %cx, (%esi)
        movl    L_Y$non_lazy_ptr, %esi
        movw    %dx, (%esi)
        addw    $4, %dx
		incl    %ecx
        cmpl    %eax, %ecx
        jne     LBB1_2  # bb


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@43375 91177308-0d34-0410-b5e6-96231b3b80d8
 2007-10-26 01:56:11 +00:00
Evan Cheng
cdf43b1fad If a loop termination compare instruction is the only use of its stride, 
and the compaison is against a constant value, try eliminate the stride
by moving the compare instruction to another stride and change its
constant operand accordingly. e.g.

loop:
...
v1 = v1 + 3
v2 = v2 + 1
if (v2 < 10) goto loop
=>
loop:
...
v1 = v1 + 3
if (v1 < 30) goto loop


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@43336 91177308-0d34-0410-b5e6-96231b3b80d8
 2007-10-25 09:11:16 +00:00
Owen Anderson
f92ff03f71 Fix for PR1741. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@43326 91177308-0d34-0410-b5e6-96231b3b80d8
 2007-10-25 02:36:18 +00:00
Dale Johannesen
691645e90f Testcase for PR 1397. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@43323 91177308-0d34-0410-b5e6-96231b3b80d8
 2007-10-25 00:50:14 +00:00
Dale Johannesen
0bd5fcf49f This was failing on Darwin, which defaults to PIC; 
no lea was generated.  I think this follows the intent.



git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@43312 91177308-0d34-0410-b5e6-96231b3b80d8
 2007-10-24 20:58:14 +00:00
Chris Lattner
99c65745a2 Implement a couple of foldings for ordered and unordered comparisons, 
implementing cases related to PR1738.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@43289 91177308-0d34-0410-b5e6-96231b3b80d8
 2007-10-24 05:38:08 +00:00
Bill Wendling
8b1c68cee4 If there's an unaligned memcpy to/from the stack, don't lower it. Just call the 
memcpy library function instead.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@43270 91177308-0d34-0410-b5e6-96231b3b80d8
 2007-10-23 23:32:40 +00:00
Chris Lattner
a91547790b new testcase 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@43252 91177308-0d34-0410-b5e6-96231b3b80d8
 2007-10-23 18:07:23 +00:00
Chris Lattner
ee19b866c3 llvm/test programs should not be execution programs. This 
will hopefully fix Gabor's Sparc problem.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@43251 91177308-0d34-0410-b5e6-96231b3b80d8
 2007-10-23 17:56:04 +00:00
Evan Cheng
152b7e1874 Temporary solution: added a different set of BCTRL_Macho / BCTRL_ELF with right callee-saved defs set for ppc64. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@43248 91177308-0d34-0410-b5e6-96231b3b80d8
 2007-10-23 06:42:42 +00:00
Evan Cheng
4102eb57bb Fix memcpy lowering when addresses are 4-byte aligned but size is not multiple of 4. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@43234 91177308-0d34-0410-b5e6-96231b3b80d8
 2007-10-22 22:11:27 +00:00
Dan Gohman
02e4fa7d5f Strength reduction improvements. 
- Avoid attempting stride-reuse in the case that there are users that
   aren't addresses. In that case, there will be places where the
   multiplications won't be folded away, so it's better to try to
   strength-reduce them.

 - Several SSE intrinsics have operands that strength-reduction can
   treat as addresses. The previous item makes this more visible, as
   any non-address use of an IV can inhibit stride-reuse.

 - Make ValidStride aware of whether there's likely to be a base
   register in the address computation. This prevents it from thinking
   that things like stride 9 are valid on x86 when the base register is
   already occupied.

Also, XFAIL the 2007-08-10-LEA16Use32.ll test; the new logic to avoid
stride-reuse elimintes the LEA in the loop, so the test is no longer
testing what it was intended to test.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@43231 91177308-0d34-0410-b5e6-96231b3b80d8
 2007-10-22 20:40:42 +00:00
Dan Gohman
8368805e25 Fix the folding of multiplication into addresses on x86, which was broken 
by the recent {U,S}MUL_LOHI changes.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@43230 91177308-0d34-0410-b5e6-96231b3b80d8
 2007-10-22 20:22:24 +00:00
Evan Cheng
3311876c3c Use ptr type in the immediate field of a BxA instruction so we don't end up selecting 32-bit call instruction for ppc64. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@43228 91177308-0d34-0410-b5e6-96231b3b80d8
 2007-10-22 19:46:19 +00:00
Evan Cheng
40eaa99fa9 New test case. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@43193 91177308-0d34-0410-b5e6-96231b3b80d8
 2007-10-19 22:05:00 +00:00
Bill Wendling
80629c85f1 Don't branch fold inline asm statements. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@43191 91177308-0d34-0410-b5e6-96231b3b80d8
 2007-10-19 21:09:55 +00:00
Bill Wendling
4f78af8d77 Removed "-arch i386" by popular demand... 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@43186 91177308-0d34-0410-b5e6-96231b3b80d8
 2007-10-19 18:49:16 +00:00
Bill Wendling
22058955e8 Now with RUN line! 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@43185 91177308-0d34-0410-b5e6-96231b3b80d8
 2007-10-19 18:40:53 +00:00
Bill Wendling
8c0247d005 Remove the Foundation.h file because not everyone has that. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@43184 91177308-0d34-0410-b5e6-96231b3b80d8
 2007-10-19 18:36:04 +00:00
Devang Patel
3305aaa350 This test now passes. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@43183 91177308-0d34-0410-b5e6-96231b3b80d8
 2007-10-19 17:11:01 +00:00
Rafael Espindola
618b0d59e6 Test byval with a 8 bit aligned struct 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@43173 91177308-0d34-0410-b5e6-96231b3b80d8
 2007-10-19 11:29:21 +00:00
Rafael Espindola
5c0d6ed325 Add support for byval function whose argument is not 32 bit aligned. 
To do this it is necessary to add a "always inline" argument to the
memcpy node. For completeness I have also added this node to memmove
and memset.  I have also added getMem* functions, because the extra
argument makes it cumbersome to use getNode and because I get confused
by it :-)




git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@43172 91177308-0d34-0410-b5e6-96231b3b80d8
 2007-10-19 10:41:11 +00:00
Devang Patel
95cf196d15 New test. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@43162 91177308-0d34-0410-b5e6-96231b3b80d8
 2007-10-19 01:28:02 +00:00
Chris Lattner
a0bc7fc7bd Fix PR1735 and Transforms/DeadArgElim/2007-10-18-VarargsReturn.ll by 
fixing some obviously broken code :(


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@43141 91177308-0d34-0410-b5e6-96231b3b80d8
 2007-10-18 18:49:29 +00:00
Bill Wendling
50c26b642c Fix the command line. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@43140 91177308-0d34-0410-b5e6-96231b3b80d8
 2007-10-18 18:26:40 +00:00
Devang Patel
45211d725b Fix test. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@43136 91177308-0d34-0410-b5e6-96231b3b80d8
 2007-10-18 17:54:49 +00:00
Bill Wendling
90bfc2d105 Pointer arithmetic should be done with the index the same size as the pointer. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@43120 91177308-0d34-0410-b5e6-96231b3b80d8
 2007-10-18 08:32:37 +00:00
Evan Cheng
4ae31a5d32 Really fix PR1734. Carefully track which register uses are sub-register uses by 
traversing inverse register coalescing map.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@43118 91177308-0d34-0410-b5e6-96231b3b80d8
 2007-10-18 07:49:59 +00:00
Devang Patel
cd2858ee16 XFAIL for now. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@43111 91177308-0d34-0410-b5e6-96231b3b80d8
 2007-10-18 00:48:43 +00:00
Bill Wendling
d9417188f3 Test to make sure we don't generate unwind info for non-64-bit Objective-C. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@43102 91177308-0d34-0410-b5e6-96231b3b80d8
 2007-10-17 23:14:56 +00:00
Devang Patel
84458323a2 Do not raise free() call that is called through invoke instruction. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@43083 91177308-0d34-0410-b5e6-96231b3b80d8
 2007-10-17 20:12:58 +00:00
Dan Gohman
c623096fe2 Add support for ISD::SELECT in SplitVectorOp. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@43072 91177308-0d34-0410-b5e6-96231b3b80d8
 2007-10-17 14:48:28 +00:00
Devang Patel
afc407ea51 Apply "Instead of loading small c string constant, use integer constant directly" transformation while processing load instruction. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@43070 91177308-0d34-0410-b5e6-96231b3b80d8
 2007-10-17 07:24:40 +00:00
Evan Cheng
234c6c6c25 Yet another test case for extract_subreg coalescing crash. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@43063 91177308-0d34-0410-b5e6-96231b3b80d8
 2007-10-17 02:15:06 +00:00
Evan Cheng
dcd8f78f8a Fix PR1734. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@43035 91177308-0d34-0410-b5e6-96231b3b80d8
 2007-10-16 19:29:47 +00:00
Dale Johannesen
cef254f8e1 New test for svn rev 43033, radar 5538745. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@43034 91177308-0d34-0410-b5e6-96231b3b80d8
 2007-10-16 18:10:14 +00:00
Chris Lattner
f602a25668 Fix a bug handling frame references in ppc inline asm when the frame offset 
doesn't fit into 16 bits.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@43032 91177308-0d34-0410-b5e6-96231b3b80d8
 2007-10-16 18:00:18 +00:00
Evan Cheng
87c8935fd5 LowerFP_TO_SINT must not create a stack object if it's not needed. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@43004 91177308-0d34-0410-b5e6-96231b3b80d8
 2007-10-15 20:11:21 +00:00
Dan Gohman
f656b985ec Reapply the fix in 42908 for this file. This changes the function names 
from "test" to "foo" so that they don't match the grep -i ST.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@43001 91177308-0d34-0410-b5e6-96231b3b80d8
 2007-10-15 19:22:17 +00:00
Evan Cheng
f5c7359afa Fix PR1729: watch out for val# with no def. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@42996 91177308-0d34-0410-b5e6-96231b3b80d8
 2007-10-15 18:33:50 +00:00
Tanya Lattner
ba56fe801c Fix run line. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@42990 91177308-0d34-0410-b5e6-96231b3b80d8
 2007-10-15 16:35:13 +00:00